Result-Driven Process ⭐ 150+ Successful Projects ⭐
For over ten years Selleo has delivered professional services on more than 150+ software development projects for clients from Europe, the US, Canada, and Australia, designing and building a number of applications throughout a wide spectrum of business domains, industries, and technologies (Ruby on Rails, ReactJS, React Native, EmberJS, Elixir).
Extend your in-house team
Whenever you want to handle a new project, deliver essential features or need a staff with specialized skills or industry expertise, our full-stack developers help you to increase overall productivity. We work in collocated agile teams crafting web and mobile applications with an entrepreneurial sense of ownership.
Embrace tech stack complexity
Our expert developers have not only the current capabilities you need but also an ability to build new ones rapidly. With the vast diversity of skills required and partnership with other specialized companies, we can deliver even the most technologically challenging software solutions.
Industry Expertise
Through the years we have gathered a broad spectrum of specialization in the development of custom SaaS and cloud-based business process management tools, digital dashboards, LMS and e-learning services, AdTech and marketing platforms, data analytics and processing solutions. We enable clients to efficiently optimize and innovate processes, products, and business ventures by developing single page applications, designing microservices architecture and crafting web and mobile applications.
Min project size
$10,000+
Hourly rate
$25 - $49 / hr
Employees
50 - 249
Locations
Bielsko-Biała, Poland
Year founded
Founded 2005
Languages
Timezones
1 Language that we service
English
1 Timezone that we service
CET
Central European Time (CET)
2 Locations
Bielsko-Biała , Poland
Bielsko-Biała , Poland
No have been added yet...
Pricing Snapshot
Min. project size
$10,000+
Avg. hourly rate
$25 - $49
/hr
Rating for cost
4.5
/5
What Clients Have Said
Selleo provides competitive pricing with good value for cost, as noted by clients. Project costs range from $20,000 to over $500,000, depending on scope and client size. Clients appreciate Selleo's quality, communication, and project management, often highlighting their ability to deliver on time and within budget.
Clients appreciate Selleo's responsiveness and adaptability, highlighting their ability to quickly adjust to changing requirements and challenges. This flexibility is seen as a key strength in their service delivery.
Effective Communication and Collaboration
Selleo is recognized for their excellent communication skills and ability to integrate seamlessly with client teams. Their openness and transparency foster a collaborative and productive working environment.
Commitment to Client Success
Selleo's team is praised for their dedication and proactive approach to understanding and meeting client needs. They are seen as invested partners, often going beyond scope to ensure project success and client satisfaction.
Room for Improvement in Estimating Procedures
Some clients suggest that Selleo could enhance their estimating procedures and deepen their understanding of certain business markets to better support client objectives and timelines.
Focus on Long-term Partnerships
Selleo is noted for their focus on building long-term relationships with clients. Their approach to training and retaining in-house talent contributes to sustained quality and continuity in client engagements.
High-Quality Technical Output
Clients frequently highlight the high quality of Selleo’s technical work, noting their ability to deliver reliable, maintainable, and well-tested code. Their proficiency in technologies like Ruby on Rails, React.js, and Python is particularly noted.
Custom Software DevelopmentIT Staff AugmentationWeb Development
Confidential
Jan. 2019 - Nov. 2024
5.0
Quality
4.5
Schedule
4.5
Cost
5.0
Willing to Refer
5.0
"Selleo doesn't rush to get something done; they get it done correctly."
Nov 22, 2023
VP of Product, FinTech Company
Frank Conway
Verified
Other industries
Allentown, Pennsylvania
1,001-5,000 Employees
Online Review
Verified
A fintech company has hired Selleo to develop a self-service kiosk for sports and entertainment venues and a web admin portal for merchants. The team works on front- and backend development.
Thanks to Selleo's work, the client has a new platform that streamlines processes and reduces the number of support tickets. They've integrated well and collaborated seamlessly with the internal engineers. Overall, they communicate effectively and stand out for their attention to detail.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the Vice President of Product of the company
Describe what your company does in a single sentence.
Fintech / Payments
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Selleo to accomplish?
Self Service Kiosk for Sports & Entertainment Venues
Web Admin Portal for Merchants to Manage their Business
SOLUTION
How did you find Selleo?
Referral
Why did you select Selleo over others?
High ratings
Great culture fit
Referred to me
How many teammates from Selleo were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Modern /responsive web admin portal front-end and platform development
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
Converted merchants from a legacy portal that was prone to issues due to bugs and poor usability. As a result of migrating merchants to the new Selleo-built portal new merchant onboarding was streamlined and support tickets reduced
Describe their project management. Did they deliver items on time? How did they respond to your needs?
The Selleo team was integrated within our team and worked in collaboration with our engineers
What was your primary form of communication with Selleo?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
High attention to detail. Selleo doesn't rush to get something done; they get it done correctly and when a better way/approach is discovered they bring to our attention -- even if it would be harder/more work
Are there any areas for improvement or something Selleo could have done differently?
With 20/20 hindsight perhaps we could have established a design system and components library that would be leveraged across all interfaces -- however that wasn't the priority at the onset. The priority was developing business value not perfect architecture
RATINGS
5.0
Quality
4.5
Service & Deliverables
Schedule
4.5
On time / deadlines
Cost
5.0
Value / within estimates
Willing to Refer
5.0
NPS
SaaS Platform Revamp for Healthcare Company
Custom Software Development
Confidential
Jan. - Aug. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
"They are very agile, flexible, and accommodating to our needs."
Aug 25, 2023
President & CEO, Healthcare Company
Anonymous
Verified
Other industries
Newark, New Jersey
11-50 Employees
Online Review
Verified
A healthcare company partnered with Selleo to revamp their existing SaaS platform within a specific budget. The team was tasked with redesigning the platform's UI/UX and expanding its functionality.
Selleo delivered the project on time and within the agreed budget. Throughout the engagement, the team was agile, adaptable, and accommodating to the client's needs. Moreover, the client highly valued their professionalism, efficiency, communicative approach, and high quality of work.
The client submitted this review online.
BACKGROUND
Please describe your company and position.
I am the President & CEO of a healthcare company
Describe what your company does in a single sentence.
Medical communications and learning expereinces
OPPORTUNITY / CHALLENGE
What specific goals or objectives did you hire Selleo to accomplish?
revamp an existing Saas
Improve UX/UI
Improve and expand functionality
SOLUTION
How did you find Selleo?
Online Search
Why did you select Selleo over others?
Capability to do the work
How many teammates from Selleo were assigned to this project?
2-5 Employees
Describe the scope of work in detail. Please include a summary of key deliverables.
Revamping existing SaaS platform
RESULTS & FEEDBACK
What were the measurable outcomes from the project that demonstrate progress or success?
timing and budget
Describe their project management. Did they deliver items on time? How did they respond to your needs?
The team has delivered on time and in budget. They are very agile, flexible, and accommodating to our needs.
What was your primary form of communication with Selleo?
Virtual Meeting
Email or Messaging App
What did you find most impressive or unique about this company?
The quality of the work has been excellent, the process and communication is very professional and efficient.
Are there any areas for improvement or something Selleo could have done differently?
I would like to provide some constructive feedback, but I honestly can not think of anything.
RATINGS
5.0
"The team has been a pleasure to work with"
Quality
5.0
Service & Deliverables
"Excellent quality of deliverables"
Schedule
5.0
On time / deadlines
"Have meet all timelines"
Cost
5.0
Value / within estimates
"Fairly priced and great value"
Willing to Refer
5.0
NPS
App Design for App Development Company
Custom Software Development
$10,000 to $49,999
Jan. 2021 - Jan. 2022
0.5
Quality
0.5
Schedule
0.5
Cost
0.5
Willing to Refer
0.5
"The end result was terrible."
Jan 9, 2023
Co-Founder, App Development Company
Anonymous
Verified
Other industries
Sydney, Australia
11-50 Employees
Online Review
Verified
Selleo redesigned an app for an app development company. They were tasked with recreating widgets and designing the UX.
Selleo failed to deliver what they promised, not meeting the client's expectations. They communicated poorly, ensuring an inefficient workflow. Their project management capabilities were not noteworthy whatsoever. They did not meet the deadlines and deliverables, and their work quality was lacking.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
Founder of ecommerce app
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Selleo , and what were your goals?
We hired Selleo to do a redesign of our app. The goal was a quick turnaround of design elements of the app to improve the user experience.
SOLUTION
How did you select this vendor and what were the deciding factors?
N/A
Describe the scope of work in detail, including the project steps, key deliverables, and technologies used.
Redesign of the widgets.
How many people from the vendor's team worked with you, and what were their positions?
3 or 4.
RESULTS & FEEDBACK
Can you share any measurable outcomes of the project or general feedback about the deliverables?
The end result was terrible. They were more than 1 year overdue in their deliverables and the quality was terrible.
Describe their project management style, including communication tools and timeliness.
Poor communication, multiple missed deadlines and non existent project management.
What did you find most impressive or unique about this company?
N/A
Are there any areas for improvement or something they could have done differently?
"The team is fully integrated into our own workflows and processes."
Aug 8, 2022
Co-Founder, Fintech Company
Anonymous
Verified
Financial services
Wilmington, Delaware
11-50 Employees
Online Review
Verified
A fintech company was looking to enhance their frontend capabilities for their financing software, so they engaged with Selleo to supplement their staff of mobile app developers.
Selleo is able to consistently deliver on their requirements, thanks to the quality and performance of their staff. The team is highly responsive, but internal stakeholders are particularly impressed with their technical development acumen.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
Fintech application focused on accounting and personal finance. Co-Founder
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Selleo ?
We needed to expand our front-end capabilities for building our fintech application focused on accounting and personal finance.
SOLUTION
How did you select this agency and what were the deciding factors?
We interviewed a number of agencies and the technical acumen and language capabilities were ultimately the deciding factors.
Describe the project in detail and walk through the stages of the project.
The agency supplied our team with quality resources that were fully integrated into our team. The quality and performance of the team was up to the standards of the company and continue to provide quality output for the growth and development of the application.
Describe the recruitment process in detail.
Resume Review, Fit Interview, Technical Interview, Contract Negotiation
RESULTS & FEEDBACK
Can you share any outcomes from the engagement that demonstrate progress or success?
The quality and performance of the team was up to the standards of the company and continue to provide quality output for the growth and development of the application.
How effective was the workflow between your team and theirs?
The team is fully integrated into our own workflows and processes.
What did you find most impressive or unique about this company?
The technical acumen, language capabilities, and professionalism were ultimately the deciding factors and standouts for the organization.
Are there any areas for improvement or something they could have done differently?
We are happy so far with the relationship with the organization.
RATINGS
5.0
Quality
5.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
3.5
Value / within estimates
Willing to Refer
5.0
NPS
SaaS Dev. for a Software Provider
Custom Software Development
$50,000 to $199,999
June 2017 - Ongoing
4.5
Quality
4.0
Schedule
5.0
Cost
4.0
Willing to Refer
4.0
“We can now ship our products faster and demonstrate our ability to execute quickly.”
Jul 31, 2018
CTO, Alyne
Manuel Reil
Verified
Information technology
Germany
11-50 Employees
Online Review
Verified
Selleo provided expertise on improving the framework for a SaaS solution. This included providing insight on API and UI.
Their team worked diligently to provide a solution that runs effectively. They produced a result that followed the specifics of a complex project.
The client submitted this review online.
BACKGROUND
Please describe your company and your position there.
I am the CTO of Alyne, an organization that offers risk insight capabilities through SaaS.
OPPORTUNITY / CHALLENGE
For what projects/services did your company hire Selleo?
We wanted software development expertise on improving the flexibility of the frameworks we use for our products. We wanted a SaaS solution that makes it easier for our customers to manage their risks
What were your goals for this project?
We wanted to augment our team, speed up the development process, and transfer knowledge.
SOLUTION
How did you select this vendor?
We met at a developer workshop and kept in contact since.
Can you go into detail about the services they provided and the scope of the project?
Selleo is developing features for our SaaS product. They are focusing mainly on the UI, but also help with API.
What was the team composition?
We work with a single development lead and two additional developers.
RESULTS & FEEDBACK
Can you share any information that demonstrates the impact that this project has had on your business?
We were able to ship features faster and demonstrate our ability to execute.
How was project management arranged and how effective was it?
Overall effective and well governed
What did you find most impressive about this company?
The passion they put in their daily work, their up-to-dateness of their skills
Are there any areas where they can improve?
Our SaaS solution makes it easier for our customers to manage their risks. But developers must understand this complex topic. Selleo could improve their knowledge there a bit, but this also something we at Alyne could improve more, i.e. transfer knowledge.
RATINGS
4.5
Quality
4.0
Service & Deliverables
Schedule
5.0
On time / deadlines
Cost
4.0
Value / within estimates
Willing to Refer
4.0
NPS
Showing 31-35 of
35 Reviews
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