Sergio Sempere
Team Lead at GitKraken
Elx / Elche, Valencian Community, Spain
Summary
🤩
Rockstar🎓
Top SchoolSergio Sempere is a Software Engineer II at GitKraken with four years of professional experience building and enhancing developer tools and desktop apps using React, Electron, Node and increasingly Go. He contributes to notable open-source projects like GitLens for VS Code, where he implemented features, Playwright tests and GitLab integrations that improve Git workflows and UX. Based in Elche, Spain, he combines front-end polish from earlier roles in Vue and PHP with backend and tooling work, shipping end-to-end solutions that span UI, integrations and CI. Comfortable owning features from prototype to production, he also has hands-on experience coordinating teams and teaching tech—skills honed running large youth programs and creating programming courses. Pragmatic and curious, Sergio blends product-minded engineering with a penchant for developer productivity and observable improvements in large codebases.
5 years of coding experience
11 years of employment as a software developer
Grado Ingeniería Informática en Tecnologías de la información, Grado Ingeniería Informática en Tecnologías de la información at Universidad Miguel Hernández de ElcheCurso Online de Diseño de Producto Usabilidad, Curso Online de Diseño de Producto Usabilidad at UX Learn
English, Spanish, Spanish
Github Skills (11)
git10
typescript10
javascript10
typescripts10
vscode-extension10
typescript-types10
github9
playwright9
automated-tests8
gitlab8
testing8
Programming languages (8)
Github contributions (5)
gitkraken/vscode-gitlens
Jul 2024 - Feb 2025
Supercharge Git inside VS Code and unlock untapped knowledge within each repository — Visualize code authorship at a glance via Git blame annotations and CodeLens, seamlessly navigate and explore Git repositories, gain valuable insights via rich visualizations and powerful comparison commands, and so much more
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:26 reviews, 26 PRs, 133 pushes in 7 months
Contributions summary:Sergio contributed to the GitLens extension for VS Code, implementing features and fixing bugs. Their work included modifying GitLab access token scopes and integrating subscription validation logic. The user also added Playwright-based tests and made adjustments to the command palette functionality, ensuring the extension's usability and functionality. Furthermore, the user added support for creating and renaming branches.
git-blamevisualizationsvscodevscode-extension
gitkraken/gk-cli
Apr 2023 - Mar 2025
GitKraken CLI Releases and Documentation
Contributions:30 releases, 10 reviews, 26 PRs in 1 year 11 months
cligitkrakenterminal
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