Cecilia De Sousa
Senior Software Engineer at SumUp
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolCecilia De Sousa is a Senior Software Engineer based in Berlin with six years of experience blending front-end and full-stack development with a decade-long background in communications and PR. She specializes in TypeScript, React, Next.js, experimentation platforms and observability tools to optimize user onboarding and drive conversion through data-informed design. At SumUp she progressed from junior frontend roles to leading onboarding improvements and mentorship programs, pairing hands-on shipping with coaching for junior and mid-level engineers. Her toolkit spans Playwright, Optimizely, Honeycomb, GraphQL/Apollo and modern testing frameworks, enabling reliable experimentation and measurable UX gains. Fluent in both technical delivery and stakeholder communication, she often leverages her communications background to align product, marketing and engineering priorities. Her GitHub and portfolio reflect a pragmatic, user-centered approach to front-end engineering and developer collaboration.
6 years of coding experience
5 years of employment as a software developer
Free course, DevOps, Free course, DevOps at Digital HouseBootcamp, Front-end development, Bootcamp, Front-end development at {reprograma} NGOTechnical Degree, Business Administration, Technical Degree, Business Administration at ETEC Professor Camargo AranhaPost-grad, Public Relations and Organizational Comms, Post-grad, Public Relations and Organizational Comms at Faculdade Cásper LíberoBachelor's degree, Journalism, Bachelor's degree, Journalism at Mackenzie University
Portuguese, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (29)
component-library10
projeto10
react10
react-components9
nodejs6
css6
rio6
java6
frontend5
javascript5
abstract-syntax-tree4
single-page4
api4
fetch3
axios2
Programming languages (5)
Github contributions (5)
cecisousa/cecisousa.github.io
Oct 2019 - Dec 2024
Portfólio de projetos front-end desenvolvidos na {reprograma}
Contributions:19 PRs, 51 pushes, 1 branch in 5 years 3 months
reactreprogramacssjavascriptportf
cecisousa/reprograma-react-III
Nov 2019 - Feb 2024
Exercícios sobre props e state em React, além de requisições Axios
Contributions:6 PRs, 10 pushes, 1 branch in 4 years 3 months
jsreactreact-hooksjavascriptsobre
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