Paulo Diniz
Senior Software Engineer at SumUp
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolPaulo Diniz is a Staff Software Engineer based in Berlin with 12 years of experience building pragmatic, elegant web and backend systems across startups and scale-ups. He has progressed from Rails and Java web development roles to senior technical positions at Airy, Sesame, SumUp and now Oviva, often focusing on simplicity, testability and clear APIs. A hands-on backend contributor, he’s extended libraries such as the HubSpot Ruby wrapper with deal management features and accompanying unit tests, showing attention to both functionality and quality. Paulo pairs technical craft with strong people skills—he values communication and teamwork above tooling—and brings a developer-first approach to mentoring and cross-team collaboration. Outside work he’s the kind of engineer who notices small UX and API details others miss, and he’s known to appreciate that every dog is a 13/10.
12 years of coding experience
12 years of employment as a software developer
University of São Paulo
English, Portuguese, German
Stackoverflow
164reputation
8kreached
9answers
2questions
Github Skills (15)
httparty10
rspec10
hubspot-api10
ruby10
apidoc9
api9
version-control7
ajax6
devise6
javascript6
jquery6
factory-bot6
tdd6
checkbox6
ruby-on-rails6
Programming languages (13)
Github contributions (5)
HubspotCommunity/hubspot-ruby
Dec 2014 - Apr 2017
Ruby wrappers for the HubSpot REST API
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 commits, 6 PRs, 9 pushes in 2 years 4 months
Contributions summary:Paulo primarily focused on expanding the functionality of the HubSpot Ruby wrapper, adding features related to deals. Their work included implementing the `Deal` class, defining methods for creating and finding deals, and integrating with the HubSpot API. Additionally, they added unit tests for the new deal functionality and updated the version number.
api-clientapirubynetsuiterest
paulodiniz/paulodiniz
Jul 2020 - Apr 2021
Contributions:14 commits, 14 pushes, 1 branch in 9 months
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