90K–130K EUR / year
Senior/Staff Golang Engineer (EMEA)
BackendRemote — EMEA
Published on 2026-07-08
These details were extracted automatically from the original listing. They may not be complete or fully up to date — it's worth checking the original job post.
About this role
Build and improve WunderGraph Cosmo Router, an open-source GraphQL Federation solution written in Go. The role focuses on compiler and execution-engine capabilities, with particular attention to performance, security, and stability.
About the company
WunderGraph builds GraphQL federation and API platform tooling that helps teams compose, govern, and ship APIs across services.
Stack
GoGraphQLApollo FederationOpenAPISOAPgRPCNode.js
What you'll do
- Develop, refactor, and maintain the Cosmo Router codebase
- Build Router capabilities, including federation support and new data sources
- Improve performance, security, and stability; review telemetry and run penetration tests
- Troubleshoot customer issues and review open-source contributions
What we're looking for
- Senior or Staff-level Go experience in a leading or ownership role
- Experience with ASTs and AST transformations
- Ability to write performant, low-GC Go code and benchmark it
- Self-directed problem-solving and strong written and verbal English communication
- Able to work remotely within CET hours and travel at least twice a year
Nice to have
- Experience with GraphQL, API gateways, proxies, or networking
- Experience with OpenAPI, SOAP, gRPC, or Apollo Federation
- Open-source contributions
Benefits
- Fully remote work, with coworking options available
- Discretionary paid time off
- Choose your work hardware
- Team retreats
Hiring process
- 30-minute introductory call with the People team
- 45-minute technical background call
- Take-home programming task (1–2 hours) and review with engineers
- Meet the founders
- Culture-fit call with team members
- Reference and background checks