James Gatz
Staff Software Engineer at Kong Inc.
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJames Gatz is a Staff Software Engineer based in Amsterdam with a decade of experience building front-end and full-stack applications, now leading engineering efforts at Kong. He progressed from freelance and frontline UI roles into senior and staff positions, bringing deep expertise in React, TypeScript, Redux and cross-platform API tooling. James contributes to notable open-source projects like Kong/insomnia, where he implemented dashboard sorting features and improved TypeScript and lint hygiene—work that touches both UX and backend integrations. Comfortable operating across product boundaries, he has a track record of turning messy UI state into maintainable, testable systems and mentoring teams through technical debt reduction. Trained in mathematics, he pairs analytical rigor with pragmatic engineering to ship polished developer-facing tooling.
10 years of coding experience
12 years of employment as a software developer
Bachelor's degree, Mathematics, Bachelor's degree, Mathematics at Aristoteleion Panepistimion Thessalonikis
English, Greek, German, Dutch
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (10)
redux10
react10
typescript-types9
typescript9
javascript9
typescripts9
api9
electron8
front-end-development8
rest-api7
Programming languages (5)
Github contributions (5)
Kong/insomnia
Aug 2021 - Jan 2023
The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:649 reviews, 92 commits, 696 PRs in 1 year 5 months
Contributions summary:James's primary contribution focused on implementing features related to sorting and managing dashboard cards. They added the functionality to sort space items and dashboard cards, which involved modifying existing React components and integrating Redux for state management. Furthermore, the user addressed and fixed TypeScript and linting errors, improving the code quality and maintainability of the application. These changes included both UI and backend components.
grpcgraphql-restrest-apiapi-clientapi
gatzjames/insomnia
Jul 2021 - Mar 2025
The Open Source API Client and Design Platform for GraphQL, REST and gRPC
Contributions:4 PRs, 1045 pushes, 633 branches in 3 years 8 months
api-clientapigraphql-apigrpcgraphql-rest
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