Homepage - web, mobile or enterprise Java, Grails and mobile software development

Welcome to software house OpenTangerine. Place in Europe where software development is being done with Groovy, Grails, Java, J2EE and Perl.

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We our customers. It inspires us when they tell us they value our work.
To us, they are unique, individuals and organizations who make the world more interesting place.

Jan Beránek

CEO

User Technologies

result was always great

"We have been working with Open Tangerine on multiple HTML coding projects in which the team has proven very flexible. We went through numerous iterations and the result was always great. I particularly value the relationship, which is based on trust and camaraderie."
Felix

CTO

Umbrella Web Software Ltd.

well-prepared professionals

"We are working together on a long-term JAVA/Spring project and experience well-structured and well-prepared professionals that can also cope with non-usual and stressful situations. They proved getting quickly up to speed in a new and complex environment and managed stabilizing and extending a legacy-system using test-driven-development. Also, these people have great humor and are a pleasure to work with!"
Alan Rhode

COO / Co-founder

eJero Ltd.

Expertise in Grails and Java development.

"Open Tangerine is a fresh, driven company offering flexibility in service supply and a great value for price. They hold a particular expertise in Grails and Java development"
Alexander Demmler

CEO

Lacuna Solutions

loyalty, fairness and real partnership

"We are working since a few years with the people from Open Tangerine. We like their expertise, know-how and quality of service they provide to us. The cooperation is carried by loyalty, fairness and real partnership - attitudes which are already rare in our days. Therefore we can only recommend Open Tangerine and their services."
Yves Bergquist

CEO / Co-founder

Raiden Partners / Novamente LLC

Ingenious and professional engineers.

"So I’m in a bit of bind here. On the one hand, OpenTangerine is one of the finest group of developers I have had the pleasure of working with. On the other, they are so good I kind of want to keep them for myself and not share them with you. So I won’t tell you that Open Tangerine and it's team are among the most ingenious and professional engineers I have worked with. That nothing seems beyond their reach, including complex back-end architectures and advanced machine learning techniques. That they are the best kept secret in European tech. Move along, there’s nothing to see, goodbye."