Helping a Dutch startup build and scale an Ad Tech product.


Quetru is an advanced analytical tool that helps companies track and draw conclusions from customer behaviour to grow their audience, improve conversion, and deliver personalised content.

Amsterdam, NL



Shortly after successfully building an MVP and finding the product market fit, Quetru founders embarked on a mission to build a solid tech team around the product to fuel its future growth. That task was challenging as the company operates in a demanding AdTech industry that requires not only technical sophistication but also domain knowledge of advertising and marketing. After considering local recruitment that proved to be difficult for a startup in Amsterdam, they started looking for a strong partner who specialised in Python and couldprovide both the technical leadership and development team that Quetru needed.


The main technical challenges were:

  • Legacy codebase that didn’t match the growing requirements of the company,
  • Hard-coded dependencies on the current client, preventing us from onboarding new ones,
  • Non-scalable data gathering based on periodic execution of heavy tasks,
  • Lack of comprehensive specification and documentation.


We’ve started from a book-like implementation of Scrum and, after fully understanding Quetru’s operating environment, we started evolving the process to fit the custom needs of Quetru and defining the best set of roles and responsibilities with the team. On the product side, we’ve built a faster and more flexible data aggregation platform (based on MongoDB), implemented numerous third party integrations and have significantly improved the scalability of microservices through refactoring. There are many more features and improvements on the way too.

  • Full-stack web development
  • API development
  • Python / Django,
  • JavaScript / NodeJS
  • ReactJS


We set up a complete technical team with a tech leader, and four developers who became an integral part of Quetru team and take care of product development on a daily basis.

Sunscrapers are serious, professional, friendly, and easy to approach. They’re transparent, they work fast and work hard. We are extremely happy with the quality so far.

Juan Dominguez, Global Director at Quetru

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Sunscrapers Sp. z o.o.
ul. Słomińskiego 7/254
00-195 Warsaw

New Business
[email protected]

[email protected]


Clutch award top Python & Django Developers 2019 Clutch award top financial services software developers 2019 Clutch award top B2B companies Poland 2019 Clutch award top developers Poland 2017


Sunscrapers Sp. z o.o.
ul. Słomińskiego 7/254
00-195 Warsaw
New Business
[email protected]

[email protected]

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