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Design and build great apps
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Join 230+ tech leaders who have built their software
with our Ruby on Rails development company.
With expertise gained on over 150 international software projects
our developers and teams enable CEOs, CTOs, VPs of Engineering and Product Owners in startups and SMEs to design and craft quality software solutions. In doing so, we either augment clients’ in-house teams or deliver complete turnkey projects.
INNOVATION
9 out of 10
collaborators would recommend Selleo to a friend of theirs. Strong bonds, participation, company-wide profit & gain sharing scheme involving everyone with a say may all play a role in the preference.
They’re well-managed as a team and very inclusive. I was impressed by their professionalism.
Quality
Client satisfaction
surveys reveal the average score for product and service quality in the last two years have been 90.2% and 91.4% respectively. We keep working to go beyond that.
I look for 5 key things in a software development partner: great programmers, consistent quality, excellent value, a responsive management team, and a fun experience. Selleo is a solid 5 out of 5 by my standards.
Trust
More than 75%
of our business comes from recurrent projects and referrals made by clients and co-workers. We’d love to make traditional marketing and sales redundant.
I’ve asked them to complete projects that are new and they’ve always managed to do it. It’s important to have trust between partners, and they’re open enough for that to cultivate.
LONG-TERM RELATIONSHIPS
An engagement
with a client usually lasts well over 2 years. An average co-worker stays with us for almost 4 years. Our clients and collaborators appreciate long-term relationships.
Selleo were always professional and surprisingly responsive. I would definitely recommend Selleo, and would not hesitate to work with them again.
STABILITY & DEDICATION
Over the last 5 years
we have operated with a low voluntary turnover rate of 4.2%. We serve our clients with stable dedicated teams with long track records of effective joint collaboration.
Selleo treats this project as if it was their own business. They are emotionally invested in what they’re doing, which, to me, is unique.
EFFICIENCY
Each client is served
by a consistently collocated team. We all work from one office to ensure broadband communications, productivity and efficient service delivery.
I’ve been quite impressed with Selleo’s work — they built a beautiful product with outstanding code.
ENGAGEMENT
You access a solid
talent pool. Since 2012 we have run a foundation to grow and select talent from the best regional technical schools. The community engagement project fuels our steady organic growth.
They provide a team of skilled and professional developers that are self going, engaged and well organised.
OWNERSHIP
Attitude is King
...in all we do. Clients are served by dedicated people with a sense of ownership, initiative and a proactive approach to problem solving.
They take a lot of responsibility. We’re really happy to give them free rein to follow their instincts when solving things. I feel like I can trust them as I can my own team.
CARE
With a team of 50+
we are small enough to care intimately while at the same time delivering ample capacity and deep expertise needed.
What sets Selleo apart is the enthusiasm and care taken on the project beyond scope. The team have been fantastic to work with.
INNOVATION
9 out of 10
collaborators would recommend Selleo to a friend of theirs. Strong bonds, participation, company-wide profit & gain sharing scheme involving everyone with a say may all play a role in the preference.
They’re well-managed as a team and very inclusive. I was impressed by their professionalism.
Quality
Client satisfaction
surveys reveal the average score for product and service quality in the last two years have been 90.2% and 91.4% respectively. We keep working to go beyond that.
I look for 5 key things in a software development partner: great programmers, consistent quality, excellent value, a responsive management team, and a fun experience. Selleo is a solid 5 out of 5 by my standards.
Trust
More than 75%
of our business comes from recurrent projects and referrals made by clients and co-workers. We’d love to make traditional marketing and sales redundant.
I’ve asked them to complete projects that are new and they’ve always managed to do it. It’s important to have trust between partners, and they’re open enough for that to cultivate.
LONG-TERM RELATIONSHIPS
An engagement
with a client usually lasts well over 2 years. An average co-worker stays with us for almost 4 years. Our clients and collaborators appreciate long-term relationships.
Selleo were always professional and surprisingly responsive. I would definitely recommend Selleo, and would not hesitate to work with them again.
STABILITY & DEDICATION
Over the last 5 years
we have operated with a low voluntary turnover rate of 4.2%. We serve our clients with stable dedicated teams with long track records of effective joint collaboration.
Selleo treats this project as if it was their own business. They are emotionally invested in what they’re doing, which, to me, is unique.
EFFICIENCY
Each client is served
by a consistently collocated team. We all work from one office to ensure broadband communications, productivity and efficient service delivery.
I’ve been quite impressed with Selleo’s work — they built a beautiful product with outstanding code.
ENGAGEMENT
You access a solid
talent pool. Since 2012 we have run a foundation to grow and select talent from the best regional technical schools. The community engagement project fuels our steady organic growth.
They provide a team of skilled and professional developers that are self going, engaged and well organised.
OWNERSHIP
Attitude is King
...in all we do. Clients are served by dedicated people with a sense of ownership, initiative and a proactive approach to problem solving.
They take a lot of responsibility. We’re really happy to give them free rein to follow their instincts when solving things. I feel like I can trust them as I can my own team.
CARE
With a team of 50+
we are small enough to care intimately while at the same time delivering ample capacity and deep expertise needed.
What sets Selleo apart is the enthusiasm and care taken on the project beyond scope. The team have been fantastic to work with.
INNOVATION
9 out of 10
collaborators would recommend Selleo to a friend of theirs. Strong bonds, participation, company-wide profit & gain sharing scheme involving everyone with a say may all play a role in the preference.
They’re well-managed as a team and very inclusive. I was impressed by their professionalism.
Our Clients' applications were featured in
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Błażej Kosmowski
Lead Developer
- The author of over 17 technical articles related to Ruby On Rails development
- Conducted over 50 workshops and presentations for both internal staff and outside of the company
- Created the Selleo/pattern gem: A collection of lightweight, standardized, rails-oriented patterns
Szymon Kieloch
Lead Developer
- The architect of business process management application used by Fortune 500 companies
- Augmented development of apps which were featured in Mashable, Forbs, TechCrunch, BusinessInsider
- Maintained and governed RoR security app with 40+ mln users and optimized the SaaS platform functionalities speeding them up 3000 times.
Ireneusz Skrobiś
Lead Developer
- The Team Leader of several cloud-based and SaaS services, delivered for clients from 7 countries in Europe and America
- Managed an augmented a team that developed web application which raised almost 2 mln USD in funding
- A speaker and a mentor sharing Ruby on Rails best practices and helping developers boost their coding skills
Years in business
Designers & developers
Software projects