About Byclosure

Byclosure is a software engineering company based in Lisbon, Portugal. Founded in 2008, we came to the market with a mission to deliver software that matters for both established businesses and startups.

About Byclosure

Believers in agile methodologies since day zero, we offer our clients the know-how, tools and methodologies necessary to tackle their most complex and innovative development projects in the web and mobile sphere.

Our strong technical expertise and orientation towards state of the art technologies, has enabled us to maintain a successful track-record on serving our customer base globally spread around the world, from Portugal to Germany, Spain and Angola.

The trust our clients have deposited in us, has allowed us to expand with a higher than 50% growth rate year on year and recruit a staff of dozens of highly dedicated and passionate engineers and designers.

We are always looking for new challenges and we look forward to hear from you, with the hope that together we can continue to write the success story that is Byclosure.

Looking forward for your contact!


Byclosure is managed by a team of professionals with extensive experience:

Vasco Andrade e Silva
Vasco Andrade Silva

Chief Executive Officer

Co-founder and CEO at by Byclosure, Vasco has a special interest in software engineering with complex languages, code generation systems and meta-programming, and he also loves automatic testing software. Previously he was senior coach of several basketball teams, from sub-14 to sub-18 in different clubs. Vasco holds a Master degree in Computer Engineering from Instituto Superior Técnico, focused in Artificial Intelligence. He his a certified Product Owner and Scrum Master by the Scrum Alliance. In his spare time he enjoys to travel the world, watch movies and play sports.

Gonçalo Dumiense
Gonçalo Dumiense

Chief Financial Officer

CFO at Byclosure, Gonçalo is keen on the IT industry as a whole, and has a special interest for web and mobile apps. Gonçalo began his career in A.T. Kearney Lisbon office as a strategy consultant. Throughout his four years experience he made part of several international projects focused on strategy and operational improvement. Gonçalo holds a Master degree in Computer Engineering from Instituto Superior Técnico, focused in Web applications. In his spare time he enjoys traveling, cooking and playing poker.