When we join your team, our mission is to help you grow the business into the next level. Not only we want to understand the application and its code, but we mainly want to understand the business itself and how you can use our unique skills to make it more profitable, bigger and more automated. That's why businesses with millions of dollars of yearly gross income trust us.
How can Arkency help you? Our experienced developers always have your business in mind. They don't just deliver code and finish tasks. They also help you refine the vision for upcoming features and changes. They are always looking if and how the requirements can be slightly changed to reduce the scope of a task, finish it faster and bring 80% of the value with 20% of the time. That is if you agree with the proposed direction that could save you time and budget.
How is the first week of our cooperation going to look like? You hire us to work on your idea, on your application. To implement features, smash bugs and to help you achieve your goals. From the very first day, we are going to try to do exactly that. We take a task you decided to be the most important, we try to figure out the code, we ask questions and hopefully, on day one, we commit changes which bring us closer to finishing the task. That's our goal when we kick-start our cooperation: to ship code and close tasks on the first day. The next days are going to be similar. In fact, that's how we work every day: take the most important task (if there is some doubt, we try to help by asking questions and bringing more clarity), split it into smaller units, finish it, ship it to production, rinse and repeat.
What if our code-base is a mess? We can handle it. It's going to be harder for us but, we can handle it. Whenever we try to implement a new feature, handle a new requirement or change the code in any way, we will try to improve it a bit as well. We follow the Boy Scouts principle: Always leave the campground cleaner than you found it.
Arkency offers good value for cost, with clients noting high-quality service and expertise in Ruby on Rails. They typically engage 2-5 team members, delivering projects on time and exceeding expectations, though specific project costs are not detailed.
Clients describe Arkency as a group of highly skilled professionals who are passionate about coding and methodologies. Their commitment to delivering top-notch solutions is evident in their work.
Strong Adaptability and Cultural Fit
Clients appreciate Arkency's ability to quickly adapt to their organizational culture and work style. This adaptability has been a key factor in seamless collaboration and exceeded expectations.
Initial Collaboration Challenges
While Arkency is recognized for their proficiency, some clients noted initial challenges in establishing an efficient collaboration. However, these were resolved over time, leading to a highly productive partnership.
Outstanding Ruby on Rails Expertise
Clients consistently praise Arkency for their exceptional skill and proficiency in Ruby on Rails development. They have successfully managed upgrades, complex projects, and system migrations, demonstrating deep knowledge and expertise.
High-Quality Deliverables and System Improvements
Arkency's work has resulted in measurable improvements, such as enhanced UX, better performance, and increased system stability. Their contributions have led to significant business benefits and increased client satisfaction.
Efficient Project Management
Arkency is noted for their efficient project management, delivering projects on time and according to plan. They require minimal supervision and maintain high levels of communication, aligning well with client work styles.
"The Arkency team comprises professionals at the highest level."
Apr 9, 2025
Director of Engineering, Lemonade
Elad Moshe
Verified
Insurance
New York City, New York
1,001-5,000 Employees
Online Review
Verified
Arkency has migrated a digital insurance company's legacy Ruby on Rails system to the latest version. The team has since handled every major Ruby company project for the client, ensuring quality and stability.
Thanks to Arkency's efforts, the client has improved their system's performance, maintainability, and security. The team is disciplined, shows self-management, and provides timely items. Moreover, Arkency's professionalism, reliability, and passion for coding and methodologies are outstanding.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Director of Engineering of Lemonade
Describe what your company does in a single sentence.
Digital Insurance Company
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Arkency to accomplish?
Modernize Ruby code base
Implement high-complexity projects
Professional guidance for Ruby project and architecture
SOLUTION
How did you find Arkency?
Referral
Why did you select Arkency over others?
Professionalism
How many teammates from Arkency were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Arkency initially took on the challenge of migrating a large monolithic system that hadn't been upgraded in years to the latest Ruby and Rails versions. They handled this impressively, ensuring a safe and stable migration while upholding the highest standards of ownership. The team managed collaboration and communication across the organization effectively and navigated one of the most complex projects independently. Due to their significant contribution, we extended the collaboration, and they have since been involved in every major and complex project the company has undertaken, becoming the foremost experts with the most domain knowledge in our Ruby codebase. Overall, they have contributed to raising the bar on quality and improving the maintainability and stability of a huge legacy system.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Migrated Ruby and RoR to the latest version, improving performance, maintainability and security.
Updated dependencies.
Increased code testing coverage.
Maintained very high level of stability throughout all changes.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
The Arekncy has extremely high level of self management and discipline.
They delivered on time, communicated in an efficient manner, proved to be highly reliable and collaborative around required changes.
What was your primary form of communication with Arkency?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
The Arkency team comprises professionals at the highest level. They are passionate about code, methodologies, and delivery.
They are not just a random outsourcing company; it's an elite group of highly skilled developers and architects committed to hands-on work.
Are there any areas for improvement or something Arkency could have done differently?
It took some time for us to learn how to collaborate efficiently, to feel confident in the reliability of their work, and to grant them the autonomy they need to reach their full potential. But once we achieved that, they've proven to be an incredible team.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.0
Value / within estimates
"They are definitely not cheap, but you get what you pay for."
Willing to Refer
5.0
NPS
Codebase Review for Trade Receivables Marketplace
API DevelopmentApplication TestingWeb Development
Ruby on Rails
+2
Confidential
Nov. 2022 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0
"They are a team of extremely talented developers that were an absolute dream to work with!"
Mar 19, 2025
Principal Engineer, Trade Receivables Marketplace
Dave Hurka
Verified
Other industries
Baltimore, Maryland
1-10 Employees
Online Review
Verified
Arkency has reviewed the codebase of a trade receivables marketplace and collaborated on code improvements. The team's work has included creating a report on the potential improvements to the client's platform.
Arkency has provided a comprehensive breakdown of the improvements that could be made to the client's codebase. The team is attentive when questions arise, and despite timezone differences, they effectively collaborate with the client. Arkency is communicative, educational, and an excellent mentor.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Principal Engineer of a trade receivables marketplace.
Describe what your company does in a single sentence.
Operates a trade receivables marketplace
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Arkency to accomplish?
Review codebase
Collaborate on code improvements
SOLUTION
How did you find Arkency?
Online Search
Why did you select Arkency over others?
High ratings
Pricing fit our budget
Great culture fit
Good value for cost
How many teammates from Arkency were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Hired to help review the codebase and provide a report with what improvements could be made to make the application more robust and scalable as well as catch and potential issues before deploying to a production system for the first time. The application is built around the Rails Event Store which they built and manage so their feedback was invaluable.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
They provided a comprehensive breakdown of the improvements that could be made to our codebase and then were very attentive when there were questions regarding the report or questions about implementing the suggerstions. They are a team of extremely talented developers that were an absolute dream to work with!
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Delivered on time and were very attentive when questions arose. Despite timezone differences we were able to effectively collaborate all the improvements to the codebase that they recommended
What was your primary form of communication with Arkency?
Virtual Meeting
What did you find most impressive or unique about this company?
The skill of the developers on the team are second to none and they are excellent at communicating, educating, and mentoring. It was a pleasure to work with them from start to finish.
Are there any areas for improvement or something Arkency could have done differently?
Nothing comes to mind
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 Development for Cargo Handling Company
Custom Software Development
Confidential
Apr. 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Arkency delivers on time and is very involved."
Feb 11, 2026
Team Lead Software Eng, CHI Deutschland Cargo Handling GmbH
Tim Chang Möhrke
Supply Chain, Logistics, and Transport
Frankfurt am Main, Germany
1,001-5,000 Employees
Online Review
Arkency has helped a cargo handling company introduce DDD and event sourcing as an app architecture. The team has provided code, features, and major refactorings within the client's 12-year-old codebase.
Arkency has delivered multiple features, including an integration with an official government API, in less than three weeks at the beginning of the project. The team has also reworked features in the billing domain, saving the client real money. They've received positive feedback from stakeholders.
BACKGROUND
Introduce your business and what you do there.
I’m the team lead for software engineering at CHI Deutschland Cargo Handling GmbH. We provide comprehensive cargo handling, warehousing, freight forwarding, cold chain logistics, customs clearance, and security services across major European hubs, ensuring secure and efficient supply chain solutions for global clients.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Arkency?
We wanted to introduce DDD and event sourcing as an architecture to our app.
SOLUTION
What was the scope of their involvement?
Arkency has helped our team get to a point where they can carry themselves, including three main goals described by management. The team has provided code, features, and major refactorings within our 12-year-old codebase. Two members of Arkency have become a true part of our team on a day-to-day basis.Additionally, the team has facilitated multiple workshops with business experts and taught our team how to organize these workshops themselves.
What is the team composition?
We work with 2–5 members of Arkency.
How did you come to work with Arkency?
We were using their technology and read one of their books. We also used their blogs for several projects.
What is the status of this engagement?
We started working together in April 2025, and the engagement is ongoing.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
Arkency has delivered multiple features, including an integration with an official government API, in less than three weeks at the beginning of the project. The team has also reworked features in the billing domain, saving our company real money. We’ve received positive feedback from stakeholders and noticed an increase in the speed of development.
How did Arkency perform from a project management standpoint?
Arkency delivers on time and is very involved. The team thinks through everything, from requirements to implementation and ownership, including architecture. We communicate via in-person meetings, virtual meetings, and emails or messaging apps.
What did you find most impressive about them?
Arkency’s knowledge, dedication, and skill are impressive. The team is a great fit, and they usually always say that it’s possible.
Are there any areas they could improve?
I don’t think there’s anything they can improve on.
RATINGS
5.0
"They transforming the way we write software"
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
"delivered ahead of schedule"
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
Development Support Services for FinTech Company
Custom Software Development
Ruby on Rails
+1
$50,000 to $199,999
Aug. 2025 - Feb. 2026
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
“The caliber of engineers at Arkency is unmatched.”
Feb 10, 2026
CEO & Co-Founder, FinTech Company
Anonymous
Verified
Information technology
Dallas, Texas
1-10 Employees
Online Review
Verified
Arkency provided development support for a fintech company's Ruby on Rails project. The team assisted the client's engineering team in complex application development work to improve scalability.
Arkency exceeded the client's expectations with their highly skilled engineers. The team worked efficiently, on time, and according to plan. They required minimal supervision and communicated regularly through virtual meetings and email updates.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the CEO & Co-Founder of a FinTech Company.
Describe what your company does in a single sentence.
A unified API for open banking
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Arkency to accomplish?
Provide ongoing development support for our Ruby on Rails project
Improve scalability
SOLUTION
How did you find Arkency?
Other
Why did you select Arkency over others?
High ratings
Great culture fit
Good value for cost
How many teammates from Arkency were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
We hired Arkency to help assist our engineering team in complex application development work for our Ruby on Rails application.
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Arkency's reputation for being a top Ruby on Rails consultancy did not disappoint. Everyone we've interacted with is a consummate professional and a highly skilled engineer. The team clearly takes pride in their craft and adapted almost instantly to our software development culture, taking on complex tasks and freeing up our full-time team to work on new features and capabilities.
Describe their project management. Did they deliver items on time? How did they respond to your needs?
Arkency works efficiently, on time and according to plan. They've required minimal supervision outside of regular expectation setting and day-to-day communication that aligns with how our team normally works.
What was your primary form of communication with Arkency?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
The caliber of engineers at Arkency is unmatched. We had high expectations going into the engagement and the Arkency team almost immediately exceeded them.
Are there any areas for improvement or something Arkency could have done differently?
n/a
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
Development & UX/UI Design Support for Media Company
Custom Software DevelopmentUX/UI Design
UX Strategy
Confidential
Nov. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"Arkency exceeds expectations and doesn't leave unfinished topics behind."
Nov 16, 2025
CEO, Imker.pl
Krzysztof Bartnik
Verified
Media
Poland
51-200 Employees
Online Review
Verified
Arkency provides ongoing development and UX/UI design support for a media company's IT project. The team has organized the system, updated it, secured it, developed key features, and optimized it.
Arkency's improvements have enhanced the UX and reduced technical issues, resulting in 5%–15% better performance. The team has adapted to the client's work style, communicated effectively, and cooperated seamlessly. Arkency has exceeded expectations and delivered on time throughout the engagement.
BACKGROUND
Introduce your business and what you do there.
I'm the CEO of a media company that offers comprehensive support for creators and producers in online sales, including consulting, fulfillment, customer service, and e-commerce tools, guiding customers through the entire online sales process.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Arkency?
We needed help taking over an IT project from another company.
SOLUTION
What was the scope of their involvement?
Arkency provides comprehensive support and software development for online creators to sell their own products. The team has been responsible for system organization, workflow, updates, and security. They've also developed key system features and implemented a new roadmap.
As for the key system features, Arkency has delivered a new look and feel for the shopping cart, subscription payments, and GTM integration. The team has also fixed many areas of the system and optimized it.
What is the team composition?
We've worked with 2–5 teammates from Arkency.
How did you come to work with Arkency?
We found them through a referral. We chose them over other options because they had high ratings, a great culture fit, and good value for the cost.
What is the status of this engagement?
We started working together in November 2024, and the engagement is ongoing.
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
Arkency has implemented options and system improvements. The new shopping cart design has translated into more orders for end customers. The recurring payment system, in turn, ensures that sellers have returning customers. Overall, we've seen 5%–15% better results. The improvements have also enhanced the UX and reduced technical issues.
How did Arkency perform from a project management standpoint?
Our cooperation is on time. Arkency exceeds expectations and doesn't leave unfinished topics behind. We communicate via virtual meetings, emails, and messaging apps.
What did you find most impressive about them?
Arkency's adaptation to our organization's work style is impressive. The team has very extensive experience translated into business goals.
Are there any areas they could improve?
There's nothing they need to improve.
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
System & Security Optimization for Waste Management Company
Custom Software DevelopmentCybersecurity
Application Security
+2
Confidential
Oct. 2023 - Mar. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0
"Arkency has an impressive depth of knowledge and expertise."
May 27, 2025
Technical Director, Anenta
Scott Ellard
Verified
Other industries
London, England
11-50 Employees
Online Review
Verified
Arkency provided system and security optimizations for a waste management company. The team helped with four projects, which included business process implementation, maintenance upgrades, and system migration.
Arkency's work helped improve the client's overall team efficiencies and the ability to integrate new systems. The team delivered on time and demonstrated extensive knowledge. The team also offered good mentorship, practical strategies, and accommodating services. Arkency communicated well.
BACKGROUND
Introduce your business and what you do there.
I'm the technical director of Anenta. We provide tailored waste management and contract administration services, specializing in recycling, general, sanitary, confidential, and clinical waste for healthcare and public sector clients across the UK. Our goal is to help our clients improve efficiency and reduce costs.
OPPORTUNITY / CHALLENGE
What challenge were you trying to address with Arkency?
We needed help with system optimizations, event storming facilitation, security and maintenance upgrades, business process implementations and system migrations
SOLUTION
What was the scope of their involvement?
Arkency facilitated our event storming discussions and worked on four separate projects:
1. Read model processing optimizations: Arkency improved our read model implementation to allow asynchronous and synchronous processing, which improved performance and usability.
2. Security review: The team reviewed our stack and performed Rails and Ruby upgrades.
3. Demonstrable version implementation: Arkency implemented a demonstrable version of a critical business process and integrated it into our new UI.
4. System Migration Proof of Concept: Arkency recomended and helped implement a proof of concept system migration strategy that we were able to roll out to other features and continuously deliver value to users.
What is the team composition?
We had one primary developer with at least 2 team members for all four projects.
How did you come to work with Arkency?
We found Arkency through an online search. We used their event store open-source libraries and online training courses. We chose Arkency over other options because of their expertise in DDD, event sourcing, and Ruby on Rails.
What is the status of this engagement?
We worked on and off with Arkency from Oct 2023 to March 2025
RESULTS & FEEDBACK
What evidence can you share that demonstrates the impact of the engagement?
Arkency helped improve our overall team efficiencies and our ability to integrate new systems and delivery unfinished work that users can now benefit from.
How did Arkency perform from a project management standpoint?
Arkency communicated well, asked good questions, and delivered on time. The team sometimes worked within very tight deadlines, which meant specifications changed after implementation.
What did you find most impressive about them?
Arkency has an impressive depth of knowledge and expertise. They operated as a group and shared their knowledge openly.
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 1-6 of
6 Reviews
Our Story
We've been part of the Ruby on Rails ecosystem since 2006 — contributing to open-source, sharing knowledge through blog posts and talks, and supporting the community.
Our deep expertise, guided by best practices like Domain-Driven Design, allows us to tackle complex problems efficiently.
To deliver real value, we go beyond code. We take the time to understand your business, its challenges, and goals, ensuring our solutions drive meaningful impact.
Meet the Team
Andrzej KrzywdaCEO
Founder of Arkency, software architect specializing in DDD, CQRS, and event sourcing. He authors books and courses, helping companies build scalable applications.
What Sets Us Apart
Services
Use our skills to modernize legacy code, enable growth, and preserve stability. We’re dedicated to building solutions that make a real impact, combining technical excellence with a deep understanding of your goals.
Team
We are a team of experienced developers who combine deep technical expertise with a business-driven approach.
Community
We proudly contribute to the Ruby on Rails community, sharing our expertise through blog posts, conference talks, and active open-source participation.
Rails Event Store
The open-source event store for Ruby & Rails.
We maintain, develop a robust library for publishing, storing, retrieving events.
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