Since 2015 we've worked where failure is expensive: inference infrastructure under live traffic, protocols moving billions, trading and settlement backends, lab instruments, drones. 60+ engineers, many with graduate degrees in maths and computer science. 90%+ client retention.
Most teams can ship a prototype in days now. What they can't do cheaply is build a system that holds up on year three - under load, under audit, after the original authors have left. That's our part.
WHAT WE DO
Audit and risk assessment. Architecture, security, performance, smart contracts, and AI-generated codebases. Teams generate a system fast, run it past AI reviewers, and still need someone to reconstruct what it's meant to do. Two independent auditors, threat modelling, findings with severity and repro steps, re-audit after your fixes.
Reliable AI systems. Inference infrastructure, retrieval pipelines, evals and regression testing for model behaviour, cost-per-token work - plus the unglamorous half: making features fail safely when the model is wrong.
Stabilise and harden. Systems that run but cost too much, scale badly, or break under load. Performance, SRE, incident readiness, migration off code nobody can maintain.
Build critical components. Settlement and trading backends, consensus and protocol work, hardware and scientific software. Rust, Nix, Python, TypeScript, Haskell; formal methods where risk justifies them.
HOW WE ENGAGE
Risk audit - fixed price and scope, prioritised roadmap of what will break. Hardening milestone - tied to a measurable target (latency, uptime, inference cost), not logged hours. Embedded experts - a small senior team owning closed scopes alongside yours. A C-level engineer owns every engagement and doesn't rotate off.
SEROKELL is recognized for providing good value for cost, with project investments ranging from $50,000 to over $700,000. Clients appreciate their expertise, timely delivery, and flexibility in project management, indicating a positive return on investment across various projects.
Clients commend SEROKELL for their proficiency in blockchain development, particularly in smart contracts and Solana architecture. Their work on various blockchain projects is noted for quality and security.
High-Quality Deliverables
Clients consistently report receiving high-quality deliverables from SEROKELL, with successful integration and implementation of technology solutions that meet or exceed expectations.
Effective Project Management
SEROKELL generally delivers projects on time and maintains clear communication with clients. Their project management is often described as proactive, structured, and responsive, contributing to successful outcomes.
Flexibility and Adaptability
SEROKELL is noted for their flexibility in adapting to changing project requirements and business needs. Clients appreciate their willingness to adjust project scopes and provide timely solutions.
Challenges with Initial Project Scoping
Some clients noted challenges with initial scoping and planning phases, suggesting room for improvement in aligning expectations and timelines from the start.
Expertise in Complex AI and ML Solutions
SEROKELL is highly praised for their technical expertise in AI and machine learning solutions, including custom semantic search APIs and smart contract development. Clients appreciate their ability to handle complex data problems efficiently.
"They were proactive with the suggestion and worked very smart solutions for our IT system."
Jul 2, 2023
Owner, Rugg Manufacturing Co.
Stephen Peck
Verified
Manufacturing
Leominster, Massachusetts
1-10 Employees
Online Review
Verified
Serokell provided custom software development services for a snow tools manufacturer. They implemented a machine-learning model to automate the client's processes.
Serokell's solution effectively relieved the analytical department's workload, enabling the client to expand their team without increasing net costs. The team's proactive, responsive, and knowledgeable approach ensured the solution was delivered on schedule, making the engagement successful.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Owner of Rugg Manufacturing Co.
Describe what your company does in a single sentence.
Rugg manufactures wooden hay rakes, domestic snow tools and lawn & garden tools.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Serokell to accomplish?
We need to automate the data analysis, getting the assessment of our stores based on the user's feedback. So, we invited Serokell to implement the ML model for evaluation.
SOLUTION
How did you find Serokell?
Referral
Why did you select Serokell over others?
Great culture fit
Referred to me
How many teammates from Serokell were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Implemented the ML evaluation, validated the results, and integrated the model into the working software system of the retailer net. Increased the efficiency of the reporting system, dismissing the manual reporting and analysis of aggregated data. Increased the ROI of the project while dismissing the human error and increased the transparency of the evaluation for each store in the net.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
We gain transparent system of evaluation, automation let us decrease the working pressure on the analytical department, and we do not need to hire new people with increasing of the net stores.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
The solution was provided according to the scheduled deadlines, all the communication was productive and we are satisfied with the quality of their ML system.
What was your primary form of communication with Serokell?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
They really know everything about AI and effective ML model development. They were proactive with the suggestion and worked very smart solutions for our IT system.
Are there any areas for improvement or something Serokell could have done differently?
No, there's none. Happy to refer them as great professionals working on a cutting edge of the industry.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
IT Staff Aug for Sports Performance Tracking Solution Co
Custom Software DevelopmentIT Staff Augmentation
Confidential
June - Sep. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They delivered the items on time and were responsive to email and Slack communications."
Jun 30, 2023
CTO, Yakkertech
Aden Seaman
Verified
Other industries
Ontario, Canada
11-50 Employees
Online Review
Verified
Serokell augmented a sports performance tracking solution provider's development team. Serokell's resources were in charge of adapting software modules to a new distributed computing architecture using Haskell.
The modules adapted by Serokell's resources passed all the tests, proving that the solutions worked correctly. Serokell's team showed experience and managed the scheduling very well. They were also communicative and responsive via email and Slack, and their Haskell expertise was impressive.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Chief Technical Officer of Yakkertech
Describe what your company does in a single sentence.
Yakkertech is the performance capture and tracking solution providing the most flexible and accurate data product for your entire baseball or softball sports organization.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Serokell to accomplish?
Software Development
Team Augmentation
New Feature Implementation
SOLUTION
How did you find Serokell?
Online Search
Why did you select Serokell over others?
High ratings
Pricing fit our budget
Good value for cost
How many teammates from Serokell were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Augmenting our team of developers to assist in adapting some of our software modules to a new distributed computing architecture.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
The modules that were adapted had corresponding software tests that passed, and integration tests for the entire software assured that all of the adapted components worked together correctly.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
They had an experienced developer who was the project manager who oversaw the scheduling and planning, and worked in conjunction with our software developers. They delivered the items on time and were responsive to email and Slack communications despite being in a quite different time zone.
What was your primary form of communication with Serokell?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Their expertise in Haskell software development and how quickly they were able to come on board and start helping with the development process.
Are there any areas for improvement or something Serokell could have done differently?
No, they were engaged in and excited about the project, wanted to make sure we were satisfied, and worked quickly and professionally.
RATINGS
5.0
"We were very pleased with the work they did and how they worked together with our team"
Quality
5.0
Service & Deliverables
"They did great work and were engaged and helpful"
Schedule
5.0
On time / deadlines
"They were able to start the project quickly, and we got all of the software components done on time"
Cost
5.0
Value / within estimates
"Their services were affordable and their expertise of great value"
Willing to Refer
5.0
NPS
"We enjoyed working with Serokell and their experienced and knowledgeable developers were professional and helpful
IT Infrastructure Optimization for Pharmaceutical Company
IT Managed Services
Help deskNetworkSecuritySoftware Evaluation
$50,000 to $199,999
Feb. - June 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"We loved the way they addressed our needs and goals."
Jun 14, 2023
CEO, Thermo Fisher Scientific
Marc Casper
Verified
Other industries
United Kingdom
10,001+ Employees
Online Review
Verified
A technology and pharmaceutical company hired Serokell to optimize their IT infrastructure. This involved implementing security measures and upgrades. The team also proposed various automation solutions.
Serokell delivered exceptional services. The client's downtime decreased by 35%, and their system availability rose by 99.9%. Their productivity jumped by 20%. The team's exceptional management style was instrumental in this success. Their members were experts and understood the client's business.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO of Thermo Fisher Scientific
Describe what your company does in a single sentence.
Our company provides innovative technologies and pharmaceutical services.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Serokell to accomplish?
We hired Serokell with the goal of optimizing our IT infrastructure and ensuring smooth operations for our company.
We needed to improve system reliability, enhance data security measures, streamline internal processes, and increase overall operational efficiency.
SOLUTION
How did you find Serokell?
Referral
Why did you select Serokell over others?
Good value for cost
Referred to me
How many teammates from Serokell were assigned to this project?
4
Describe the scope of work in detail. Please include a summary of key deliverables.
Serokell approached our project with great professionalism and expertise, and the scope of work encompassed implementing necessary upgrades, ensuring stability, scalability, and resilience of our systems. They implemented robust security measures, including firewalls, encryption, and intrusion detection systems, to safeguard our sensitive information.
They proposed and implemented streamlined processes and automation solutions to improve productivity and reduce manual errors. They established proactive monitoring systems to detect and resolve potential issues before they impacted our operations. They also provided ongoing system maintenance, including regular updates and patches, to ensure the highest level of performance.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Thanks to Serokell's exceptional services, we witnessed significant measurable outcomes such as:
Downtime was reduced by 35% due to proactive monitoring and prompt issue resolution.
Our system availability increased to 99.9%, ensuring uninterrupted operations.
We have got zero security breaches or data leaks during the engagement.
The streamlined processes and automation solutions reduced manual effort by 25% and increased overall productivity by 20%.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Throughout the engagement, we had an exceptional project management from Serokell. They exhibited a high level of professionalism, efficiency, and responsiveness. Deliverables were consistently delivered on time, exceeding our expectations. They actively sought feedback and ensured our needs were met promptly and effectively. Their clear communication and regular progress updates kept us informed and involved throughout the project.
What was your primary form of communication with Serokell?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
What impressed us the most about Serokell was their technical expertise and their ability to understand our specific industry requirements. We loved the way they addressed our needs and goals and were able to meet them on schedule.
Are there any areas for improvement or something Serokell could have done differently?
We couldn't find any faults during the engagement with them.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Software Design & Dev for Music & Video Synchronization Tool
Python
$50,000 to $199,999
Dec. 2022 - Jan. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"We enjoyed working with Serokell, and I would definitely recommend them."
Jun 2, 2023
Former Project Manager, Synkizz
Anonymous
Verified
Arts, entertainment & music
Montenegro
1-10 Employees
Phone Interview
Verified
Serokell developed and helped design a music and video synchronization tool. The team assessed the problem and the client's goals; then, they used Python to create an algorithm.
Serokell met the client's standards. The client was pleased with the data and metrics they saw from Serokell's work. The team's evidence-based approach was impressive. They also took great initiative and did what they said they'd do. Serokell communicated daily and then weekly via Slack and Zoom.
A Clutch analyst personally interviewed this
client over the phone. Below is an edited
transcript.
BACKGROUND
Introduce your business and what you do there. I’m a former project manager for Synkizz.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Serokell? We set out to create a platform to synchronize user videos with music. The software that already existed in the market was not good enough; some videos looked unnatural.
SOLUTION
What was the scope of their involvement? Serokell helped create a platform that offered musicians a range of options for creating professional video clips. The initial phase involved formalizing the problem to understand the difficulties and approach and choose the algorithm. We were quite involved in this stage. Serokell helped design the algorithm to synchronize the video and music. Following the first stage, the team at Serokell developed the platform using Python and video and audio libraries to produce the algorithm.
What is the team composition? We were mostly in touch with the project manager and the owner.
How did you come to work with Serokell? They were recommended to us by a friend. They had a solid academic background which was important for us when it came to the development of the algorithm.
How much have you invested in them? We spent about $50,000.
What is the status of this engagement? We worked with Serokell from December 2022–January 2023.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement? They met our criteria, and we were greatly satisfied. We assessed their performance based on test data and a few metrics.
How did Serokell perform from a project management standpoint? We communicated with Serokell daily during the initial stage via Slack and Zoom video calls. During the next phase, we were in touch with them on a weekly basis.
What did you find most impressive about them? I liked Serokell’s academic approach; they always backed up their statements with research, which was important for me since I came from an academic background. They were also proactive, and they delivered what they promised.
Are there any areas they could improve? Nothing comes to mind.
Do you have any advice for potential customers? We enjoyed working with Serokell, and I would definitely recommend them.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
AI Intelligence Services for AI Tech Company
AI Development
Machine Learning
$50,000 to $199,999
Nov. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"We are impressed by their expertise and communication skills."
May 18, 2023
Project Manager, ARTIMUS
Toby White
Verified
Other industries
Cardiff, Wales
1-10 Employees
Online Review
Verified
Serokell has developed a machine-learning cycle for an AI tech company. The team is tasked with data labeling, exploratory data analysis, and ML problem statements. They also utilize RICH-CPL for extraction.
Serokell has successfully delivered the project within time and budget, meeting the client's expectations. The service provider has demonstrated excellent project management and communication via email and virtual meetings. Their expertise, professionalism, and quality of service are impeccable.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Project Manager of ARTIMUS
Describe what your company does in a single sentence.
Here at ARTIMUS our talented team of developers is dedicated to providing Artificial Intelligence Solutions such as machine learning, natural language processing, computer vision and deep learning among others.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Serokell to accomplish?
We are a startup company from the UK, and our goal is to create a better digital version of historical documents and provide convenient access to historical data via digital format.
We need to provide a better solution than existing categorisation, letting the users have simple access to billions of authentic documents, not the UGC interpretation of the historical information.
Create a convenient multi-parametric structure to provide flexible facilities for search by different criteria, not only by the event or persona but also by the place, the date, and/or the group of people, summarizing the facts which join all the facts.
SOLUTION
How did you find Serokell?
Referral
Why did you select Serokell over others?
Great culture fit
Good value for cost
Referred to me
Company values aligned
How many teammates from Serokell were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
It was necessary to extract this information automatically, so we could not only process a large corpus of texts via ML but also create some additional features. Serokell performed an entire machine learning cycle, from a proper ML problem statement, data labeling, and exploratory data analysis to developing templates matching SOTA solutions to achieve better metrics on historical texts and used Wikipedia to teach.
For fact extraction, they used RICH-CPL. Currently, we are working on the GU for our system and preparing it for launch.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
We've been able to move from machine learning problem statements, data labeling and exploratory data analysis to developing templates. They've worked on fact extraction and now moved on to working on the GUI for our system. This is a great path to success.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Serokell had good project management, and the team project manager is always ready to provide the brief and/or update on their processes, and the team is always ready to address our questions or curiosities. They have been delivering the key items on schedule and have always regarded the budget in their dealings.
What was your primary form of communication with Serokell?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
We are impressed by their expertise and communication skills. We value being carried along on our projects, and they've always proved themselves to be professional at delivering the best services at satisfying their clients.
Are there any areas for improvement or something Serokell could have done differently?
We haven't had any issues with them or areas for improvement we can correct. They perform excellently.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Dev for Online Flower Shop
Custom Software Development
$10,000,000 +
Mar. - Apr. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Serokell impressed us with their exceptional organization, timeliness, and collaborative approach."
Apr 27, 2023
Owner, Downtown Flowers
Dillon Long
Verified
Other industries
Los Angeles, California
1-10 Employees
Online Review
Verified
An online flower shop hired Serokell to develop a recommender system for customers to search by image and find similar products. This included working on manual labeling and Siamese neural networks.
Thanks to Serokell, the client set two online tests and received five-star marks from end users. The vendor demonstrated effective project management and communication, daily updating the client via email. Ultimately, the client was delighted with the partnership.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Owner of Downtown Flowers
Describe what your company does in a single sentence.
Online compact flower shop that offers floral arrangements, plants and gifts in a well-lit interior.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Serokell to accomplish?
Develop a recommender system for customers to search by image
Help customers find similar goods at our online flower shop
SOLUTION
How did you find Serokell?
Online Search
Referral
Why did you select Serokell over others?
Good value for cost
Referred to me
Company values aligned
What was the size of Serokell’s team?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
The project involved the recognition of different flowers by an image downloaded by the shop visitors and providing them with the most appropriate to the image; an additional feature was a list of recommendations to be added based on the last item in the cart. The difficulty of the task was in the fact that many different flowers look very similar and are estimated as the same by existing models.
Starting with manual labeling, we moved to work with Siamese neural networks. We aimed to improve the recognition of different flowers with similar appearances, like roses and eustomas. The deliverables were integrating the search by image and recommender system into the working shop interface.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Oriented to customer satisfaction, Serokell helped to set 2 online market tests with a random sampling of visitors, providing 50% of them with old software and 50% demonstrating the updated search and list of recommendations. The second group quickly found what they wanted and did the purchase, the reviews from the second group included 34% more 5 stars marks.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
We had good communication and received updates via emails everyday. Serokell presented plans, which we modified as the project advanced and gave us progress reports at different stages.
What was your primary form of communication with Serokell?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
Serokell impressed us with their exceptional organization, timeliness, and collaborative approach. They addressed challenges promptly and exceeded our expectations.
Are there any areas for improvement or something Serokell could have done differently?
There was nothing they could have done differently.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Dev for Software Dev Company
AI DevelopmentCustom Software Development
Machine Learning
$200,000 to $999,999
Feb. - Nov. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Most importantly, the developed solution considered all our requirements and even exceeded our expectations."
Apr 27, 2023
Co-Founder, Quorum
Arthur Grishkevich
Verified
Other industries
London, England
11-50 Employees
Online Review
Verified
A software development company hired Serokell to design a system that met their interpretability requirements. The project consisted of research, planning, software testing, and postproduction testing.
Serokell successfully delivered the task, allowing the client to progress with their project. The vendor demonstrated effective project management and communication, regularly updating the client via Slack, email, and video calls. Their collaboration, timeliness, and organization were commendable.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the co-founder of Quorum
Describe what your company does in a single sentence.
We are a company developing software solutions for railway companies, which will be sold as SaaS.
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Serokell to accomplish?
Our objective was to design a system that would meet our interpretability requirements and be able to extend and adjust.
SOLUTION
How did you find Serokell?
Referral
Clutch Site
Why did you select Serokell over others?
High ratings
Referred to me
Company values aligned
What was the size of Serokell’s team?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
The project consisted of several phases, including initial research, planning, development, software testing, and post-production testing. During the initial research phase, the team thoroughly analyzed the project requirements and identified potential challenges. In the planning phase, a detailed roadmap was created based on our established requirements.
The development phase began with the analysis of available data, where the team reviewed raw data to identify any issues or limitations and spent time on data preparation. During the development work, several ML models were tested to find the one with the best accuracy. The team carried out rigorous software testing throughout the development process, and the solution was finally found. We are currently polishing the UI/UX to present the solution to the market.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
We have a working product. We are now doing final user testing and ui/ux polishing to go to market.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
We tracked the development process through regular communication via video calls, YT, and Slack messages. Serokell proposed a roadmap after the initial assessment, which we made adjustments to as the project progressed. Serokell also provided us with reports at different stages of the flow. Overall, we had good visibility into the development process and were able to collaborate effectively with the developers.
What was your primary form of communication with Serokell?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
We were highly impressed with the exceptional level of organization and timeliness demonstrated by the Serokell team throughout the project. They promptly addressed any project challenges and were always willing to work collaboratively. Most importantly, the developed solution considered all our requirements and even exceeded our expectations.
Are there any areas for improvement or something Serokell could have done differently?
While we did not encounter any significant issues during our collaboration. One area that could be improved is in the project's initial scoping and planning phase. Overall, our experience has been extremely positive and productive.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Dev for Cryptocurrency Enabler Platform
Serokell developed the second version of a cross-chain cryptocurrency liquidity enabler platform using Solidity. They improved the client’s original design and developed the platform from scratch.
Serokell met the client’s technical and security requirements. The platform they developed didn’t have any issues, and they showed deep expertise in blockchain development. Serokell met deadlines and held close communication. They collaborated through Trello, Slack, Zoom, and Google Meet.
A Clutch analyst personally interviewed this
client over the phone. Below is an edited
transcript.
BACKGROUND
Introduce your business and what you do there.
I'm the co-founder of Symbiosis. We’re a cross-chain protocol liquidity enabler. We enable businesses and other users to swap any token from different blockchains.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Serokell?
We launched the first version of our protocol back in March 2022. The initial design was visible enough to launch the product, but we wanted to make it even more competitive. We had a particular design we wanted for our second version and needed a partner to help us develop it.
SOLUTION
What was the scope of their involvement?
Serokell has helped us develop the second version of our platform. This design is similar to most of the existing decks, but we wanted a version that was more secure. We already had a new design in mind but didn’t have the resources to develop it on our own, and that’s where Serokell came in.
Serokell built the platform from scratch since they’re specialized in software development rather than modifying existing software. They used Solidity for programming, and I also ask them for our platform to be compatible for integration with Cardano cryptocurrency.
Serokell developed the platform based on our criteria, presented us with the results, and we performed security audits on the platform for about a month and a half. Then, we went live with the platform.
What is the team composition?
My main point of contact with Serokell was Roman (Chief Business Development Officer). Overall, we worked with a team of 5–6 specialists, most of them were software developers.
How did you come to work with Serokell?
Our biggest investor, who is in the financial industry, referred Serokell to us. When I was looking for a service provider, they mentioned Serokell could handle this kind of project, so I reached out.
I had a call with Serokell to discuss the project’s scope and realized they had expertise in classical programming. I also noticed they had experience with blockchain development by looking at their portfolio, and that’s why we decided to go with them.
Moreover, the scope of work and price they presented were reasonable for us, especially in terms of timing. We already had a timeframe in mind to present our protocol’s second version and needed a partner that could work with that timeline.
How much have you invested with them?
We invested around €300,000 (approximately $320,000 USD) with Serokell.
What is the status of this engagement?
We started working together in May 2022 and ended the contract at the end of October 2022.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
Because Serokell mostly concentrates on providing software development services and audits, we were interested in having several auditing partners for this project. We actually developed criteria to ensure there weren’t security breaches in the code Serokell presented. If the product had many security breaches, we wouldn’t be able to put it into the production phase because we’re in the blockchain and crypto industry — it's all about money.
For us, it was vitally important to be 200% sure about our software’s security. We established the KPIs to ensure this, and Serokell met all our criteria. After that, they passed two security audits by third-party companies and proved there were no security breaches in their code.
After Serokell’s finished development, we realized audits for a month and a half, and then we went live with this second version. We haven’t had any security issues so far, and the platform works fine.
How did Serokell perform from a project management standpoint?
There was a designated teammate from Serokell communicating with us on a regular basis, as well as a team lead. They answered all the questions we had along the way. We had a channel with Serokell’s team on Slack and used Telegram for informal communication. We also had several calls through Zoom and Google Meet.
Overall, Serokell’s project management was good. They met deadlines and kept track of the project through Trello.
What did you find most impressive about them?
I was most impressed with Serokell’s deep and profound blockchain expertise. The crypto space has been booming for the past two years, and now there’s a slight decline. However, Serokell started their blockchain development career in 2017 — they aren't new to the industry.
I was particularly impressed with Serokell’s expertise with the uncommon programming languages used in this industry, showing deep and profound knowledge.
That's what sets them apart from other teams. We had worked previously with several teams and had both good and bad experiences. In comparison to other companies in the market, Serokell is definitely above the average.
Moreover, we already had a design in mind for our platform’s second version, and we were open to suggestions. Serokell helped us greatly. They weren’t the kind of team that need a detailed and very technical description of how things should work and execute just as it's written on paper. They suggested improvement based on their understanding of how to meet our criteria, and that was very helpful.
I would recommend Serokell for a creative approach. They try to get deep into what they're developing, not just manually execute what is asked of them.
Are there any areas they could improve?
I can’t think of anything for Serokell to improve.
Do you have any advice for potential customers?
I recommend going to Serokell as early as possible, so they can find a way to collaborate with you and schedule your project since they have several projects they work on.
Serokell is not just another software development company. They can really help you with deep expertise to push your product to work. I wouldn’t say Serokell can replace the core development team for a blockchain project, but they can be a trustworthy contributive partner. Treat them as partners.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
5.0
Value / within estimates
"Other companies quoted the same work at a higher price."
Willing to Refer
5.0
NPS
Web3 Platform Development for Cryptocurrency Startup
Custom Software DevelopmentWeb Development
Other app platformJavaScriptPython
$200,000 to $999,999
June 2021 - Feb. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0
“They allocated time and resources to problem-solving and worked efficiently.”
Jan 18, 2023
Executive, Cryptocurrency Startup
Anonymous
Verified
Financial services
Morocco
Phone Interview
Verified
Serokell developed a cryptocurrency startup’s web platform. They built a routing algorithm and the backend using a Web3 tech stack, Python, JavaScript, Solidity, and financial flow optimization tools.
Serokell delivered the fully functioning platform on time. The team was transparent about timelines and communicated effectively through Telegram and Slack. Moreover, they provided consultations with experts as needed, and their efficient problem-solving approach was key to the project’s success.
A Clutch analyst personally interviewed this
client over the phone. Below is an edited
transcript.
BACKGROUND
Introduce your business and what you do there.
I’m an executive at a free web application that enables users to connect via DeFi wallets and to make multiple-input and multiple-output transfers in single transactions. Users can swap several units of USC Coin and USDT for Ethereal or Bitcoin in one transaction and do it cross-chain. In a sense, we’re a liquidity aggregator.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Serokell?
When we started the company, we lacked a development team, specifically full stack developers. We needed a company that could help us develop our product. At the same time, our service provider needed crucial expertise in algorithms, a Web3 technology stack, and Sphere; the latter two are uncommon in the market.
SOLUTION
What was the scope of their involvement?
Serokell provided us with full-cycle development; they helped us with our requirements, development, testing, and deployment. Initially, the founding team prepared pre-requisite documents such as technical requirements. We described the MVP’s scope in terms of which blockchains to target first and presented that information to Serokell. Then, we worked together to finalize the requirements.
The first thing Serokell developed was a routing algorithm; it collects the data from third-party protocols, analyzes it, and finds the best route for our transaction. Secondly, Serokell developed the backend, which is the product’s core and processes multiple requests at once in real time.
As for technologies, Serokell used a Web3 technology stack that enables the product to connect to blockchains. Users can log in through a Web3 library and connect automatically. The Serokell team also used Python, JavaScript, Solidity, and optimization tools, such as algorithms that optimize financial flows.
What is the team composition?
We worked with at least three full-time teammates from Serokell, including a team leader. If we needed expertise in other fields, they put us in contact with experts.
How did you come to work with Serokell?
I found them online, searching for an IT company that could develop my product. I made a shortlist and had multiple calls with the candidates. Ultimately, I chose Serokell.
How much have you invested with them?
We spent just over $200,000.
What is the status of this engagement?
We worked with Serokell from around June 2021–February 2022.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
Since we're a startup, our measure for Serokell's success focused on on-time delivery. Aside from that, we needed the product to be user-friendly, though we didn't discuss that in-depth because it was a given. Overall, we were very happy with Serokell's deliveries; the product worked well.
How did Serokell perform from a project management standpoint?
They delivered on time. Like in every process, there were some timeline discrepancies of 2–3 days at certain points. However, I was overall happy with their timeliness.
When they had difficulties, they never hesitated to contact me and ask for extensions. Therefore, their communication was good. They were fast to contact me with any questions they had or to answer my questions. We used Telegram for irregular requests and Slack for regular requests and to check on progress.
Additionally, Serokell was very agile in scheduling meetings with experts when we needed them.
What did you find most impressive about them?
I was impressed with Serokell's expertise. Some aspects of the project were new to them, and they responded well to those challenges. They allocated time and resources to problem-solving and worked efficiently. For example, the team found new software to solve a problem we faced, which was helpful.
Are there any areas they could improve?
During the initial stage of the project, we spent almost a week clarifying what we wanted from them and what they could deliver. In a way, we were speaking different languages because Serokell's team was very technical. Therefore, they could have improved their onboarding process.
Do you have any advice for potential customers?
Serokell isn't the cheapest in the market, but if you have the budget to work with them, put all your eggs in one basket and give it to them. Don't try to control everything; the team knows what they're doing in their field of expertise. Therefore, don't hesitate to present them with any problem or ask for advice from Serokell.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
5.0
NPS
Custom Software Dev for Single-Sided Security Lending Co
“They helped us understand how to write and test the smart contracts.”
Jan 13, 2023
CEO, Cometa
Daria Yakovleva
Verified
Other industries
London, England
Phone Interview
Verified
Serokell provided custom software development for a single-sided security lending company. They worked on writing, testing, and integrating smart contracts using Haskell, Reach, Python, and React TypeScript.
Serokell successfully delivered a quality product that presented no critical issues and helped the client save money on additional improvements. The team stood out for their expertise and excellent project management. They were transparent, easy to work with, and communicative through Slack.
A Clutch analyst personally interviewed this
client over the phone. Below is an edited
transcript.
BACKGROUND
Introduce your business and what you do there.
I’m the CEO of Cometa, an aggregator and single-sided security lending company on the Algorand blockchain. We build DeFi applications to help users and projects to attract liquidity.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Serokell?
We had hard tech challenges because we used Reach language, a functional framework to write smart contracts. Reach was written in Haskell, another functional language, so we needed someone with expertise in that language to help us.
SOLUTION
What was the scope of their involvement?
Serokell had to achieve three goals. The first one was verification for the smart contract to ensure they were secure enough for our users. The second one was testing the smart contract to cover it, and the third was the integration of the smart contract with the frontend. Serokell had their own verification framework, and they used Reach, Python, and React TypeScript for the frontend.
Since we help projects attract liquidity, we had to cover a couple of points. Serokell designed the best UX by optimizing clicks to make it easy to use. Also, it was super important that the smart contracts were secure and well integrated with the frontend. Additionally, they created features to help users understand DeFi more and see how to get APR and profits from the service.
What is the team composition?
We worked with three developers from their team.
How did you come to work with Serokell?
I studied at the same university as one of the developers from Serokell. I knew they were the best programmers in Haskell and functional programming. Smart contract verification and testing is a hard field of expertise, and they knew how it worked, so I decided to go with them.
How much have you invested in them?
We spent around €100,000 (approximately $108,000 USD).
What is the status of this engagement?
We worked with them from December 2021–August 2022 when we launched our platform.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
After our engagement, we did an audit with another company, and there were no critical issues. The audit went very well, and it was easy for us. Moreover, we didn’t have to spend much money on additional improvements to the smart contract.
How did Serokell perform from a project management standpoint?
Initially, we had to move some deadlines, but it was okay. In general, Serokell’s project management was excellent. They were transparent with what they were doing, and it was easy to collaborate with them.
We used Slack to communicate and manage tasks.
What did you find most impressive about them?
Not many companies have their expertise in smart contracts and functional programming in Haskell. Serokell is the best.
Are there any areas they could improve?
No, everything was okay; there weren’t any issues. We’d work with them again.
Do you have any advice for potential customers?
If you have issues with Haskell or functional programming, I 100% recommend working with Serokell due to their expertise. They helped us understand how to write and test the smart contracts.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.5
Value / within estimates
Willing to Refer
5.0
NPS
Showing 11-20 of
34 Reviews
Our Story
We are Serokell — a research-driven software team fusing academic rigor with industry delivery since 2015. Our engineers and researchers specialize in AI/ML, Big Data, blockchain, SRE and formal verification (Haskell, Rust, Nix). We’ve shipped fintech, biotech, oil & gas and marketplace systems, contributed to Tezos, Cardano, TON, and GHC, won major smart-contract contests, open‑sourced tools like Edna and deploy-rs, and mentor talent through courses, labs and scholarships.
Verified means Clutch independently confirmed SEROKELL is a legally registered business, has had its financial risk status checked (Creditsafe: High Risk), and is backed by 31 verified client reviews averaging 4.9 stars.
*Clutch performed additional verification on this company and confirmed that there are no negative legal filings or large outstanding debts. This company has also received 3 or more verified reviews on our platform.
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