FullStack 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. Making this look easy for customers actually means solving complex technical challenges, which is why we’re looking for people like you to help us grow and build more exciting, cutting‑edge tech! 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!

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As a Staff Full Stack Engineer, you are the owner of the Wunder Graph Cosmo Studio and its underlying Node.js control plane, the primary interface through which developers at companies like eBay and Sound Cloud build and manage their mission‑critical federated Graph

QL APIs. Your primary responsibility is to architect and build the definitive user experience for modern API development, creating a single, cohesive product that bridges our high‑performance Go‑based router and our Type Script/React/Next.js‑based frontend.

You will not only design and build the UI but also the backend APIs that power it. Your work will bring our entire platform to life, from schema management and composition checks to advanced analytics and distributed tracing powered by Open Telemetry and Click House. We are looking for a hands‑on technical leader who can seamlessly integrate these distinct technology stacks to solve complex challenges for our enterprise customers, ensuring our platform meets stringent security and compliance standards like SOC 2.

• 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 Slack channels and customer calls.

You are successful if you:

• Enable our customers' engineering teams to manage Graph
  
  QL Federation fast, reliably, and with confidence through the world‑class Wunder Graph Cosmo Studio you build.
• Take full ownership of major features within the Cosmo Studio—and own them completely, from architecture to operation, embodying our value of "Velocity over Perfection".
• Drive the architectural vision for the entire full‑stack experience, making key decisions on frontend technologies, API design, and their integration with our core Go services.
• Bring deep full‑stack expertise to the table, leveling up the entire team through mentorship, architectural guidance, and by championing best practices.
• Grow with Wunder Graph as we scale, expanding your influence across the product and organization while helping us build a world‑class engineering team.

The role focuses on, but is not limited to:

• Architecting, building, and operating the Wunder Graph Cosmo Studio, our user‑facing web application, using Next.js, React, and Type Script.
• Designing, implementing, and maintaining the backend APIs and services that power the Studio, primarily using Go and Type Script/Node.js.
• Owning and evolving the user experience for our observability stack (Open Telemetry, Click House) and features like Role‑Based Access Control (RBAC) to ensure deep, actionable insights into our users' systems.
• Collaborating on our command‑line tool (wgc) and platform SDKs to create a seamless and cohesive workflow for developers across all interfaces.
• Embedding security best practices into the platform by designing and implementing features that meet enterprise and SOC 2 compliance standards.
• Mentoring other engineers, providing insightful code and design reviews, and documenting platform features and architectural decisions to foster a culture of collaboration and knowledge sharing.

• Proven experience architecting and operating complex, user‑facing web applications in production, with strong proficiency in Type Script, React, and Next.js.
• Nice to have but not mandatory:
  Proficiency in Go or a demonstrated ability to rapidly master it, as our router and telemetry services are written in Go.
• You thrive in the dynamic…