Golang Engineer - Remote-EMEA

Wunder Graph is a fast-growing startup, and we’re on a mission to redefine how companies leverage Graph

QL Federation  North Star is to enable collaboration across small and large organizations by using APIs as the backbone of business growth. If you want to make an impact, have your voice heard, and work in a no-BS organization where you can get stuff done—look no further and apply today! 🚀

As a Staff Golang Engineer, you are the primary owner of the Wunder Graph Cosmo Router, our high-performance, Go-based engine for Graph

QL Federation. This router is the heart of our platform, processing mission-critical traffic for developers at companies like eBay and Sound Cloud. Your responsibility is to architect, build, and operate the fastest and most reliable router for federated Graph

QL, directly contributing to our core competitive advantage. You will drive the evolution of its query compiler, plugin system, and overall performance, ensuring it scales to meet the demands of the largest enterprises while integrating seamlessly with our observability stack (Open Telemetry, Click House) and the rest of the Cosmo platform.

• You align with the CTO.

• You collaborate closely with the entire engineering team, product managers, and directly with customers. A key part of our culture is closing the feedback loop by putting engineers in direct contact with users through shared channels and customer calls.

You are successful if you:

• Solidify the Cosmo Router's reputation as the fastest, most reliable, and most extensible Graph
  
  QL Federation gateway in the market through your architectural and implementation work.

• Take full ownership of the Cosmo Router's roadmap and major features—from query planning and execution to its Go-based plugin system—embodying our value of "Velocity over Perfection".

• Drive the architectural vision for the router, making key decisions on concurrency patterns, performance optimization, and its integration with the broader Cosmo ecosystem.

• Bring deep Go performance and systems engineering expertise to the table, measurably leveling up the entire team through mentorship and by championing best practices for high-performance networking services.

• Grow with Wunder Graph as we continue to solidify our market leadership, expanding your influence across the product and organization.

The role focuses on, but is not limited to:

• Architecting, building, and operating the Wunder Graph Cosmo Router, with a relentless focus on performance, reliability, and scalability.

• Evolving the router's core query compiler and execution engine to optimize query plans and reduce latency for complex federated graphs.

• Enhancing and maintaining the router's Go-based plugin system, enabling deep, performant customization for enterprise users.

• Ensuring the router integrates seamlessly with our observability stack, exporting rich metrics and traces via Open Telemetry to platforms like Click House.

• Embedding security best practices directly into the router, implementing features like JWT authentication and ensuring it meets enterprise and SOC 2 compliance standards.

• Mentoring other engineers on high-performance Go development, providing insightful code and design reviews for router-related features, and documenting its architecture.

• Proven, extensive experience architecting and building high-performance, low-latency networking services in production using Go, with deep expertise in its concurrency models and performance profiling tools.

• A profound understanding of Graph
  
  QL, its execution semantics, and the specific challenges of Graph
  
  QL Federation. Hands-on experience building or maintaining Graph
  
  QL gateways or routers is a significant plus.

• You thrive in the dynamic environment of a scaling, remote-first company that values direct customer interaction and fast iteration.

• Experience building or working with developer infrastructure, API gateways, or products with a highly technical user base is strongly preferred.

• A self-starter attitude and a leader’s mindset: you are comfortable with ambiguity, can identify and solve ill-defined problems, and don’t need hand-holding.

• Exc…