Unser Kunde:
A seed-stage technology company building a security layer for the era of AI agents.
Their product is an MCP Gateway that intercepts and controls Model Context Protocol traffic, enforcing enterprise-grade security policies on AI tool calls.
The team is moving from v0 to v1 and is looking for strong technical leadership on the core infrastructure.
Ihre Aufgaben:
- Design and develop the core MCP gateway / proxy handling JSON-RPC 2.0 traffic over Streamable HTTP, WebSockets, and SSE;
- Own connection lifecycle management: capability negotiation, authentication enforcement, routing with async connection pooling;
- Build and optimize performance-critical request paths for high throughput and low latency;
- Implement TLS/mTLS termination, connection pooling, and backpressure handling;
- Support dynamic configuration updates (xDS-style) to enable zero-downtime deployments;
- Work closely with founders and early customers to evolve the system from prototype to production;
- Take architectural ownership of the gateway core and policy enforcement layer.
Erforderliche Erfahrungen und Qualifikationen:
- 5+ years of experience in systems programming or backend engineering with production-grade proxy/gateway systems;
- Strong async programming background with hands-on experience building high-concurrency systems;
- Solid Rust experience, including async ecosystem components such as Tokio, Hyper, Tower;
- Hands-on experience implementing network protocols: WebSockets, SSE, HTTP/2, gRPC;
- Strong security engineering background: TLS/mTLS, OAuth 2.1, JWT validation, request validation, rate limiting;
- Cloud-native mindset: containers, IaC, CI/CD, monitoring and observability;
- Ability to make pragmatic trade-offs between performance, security, and delivery speed in a seed-stage environment;
- Englisch - Obere Mittelstufe.
Wäre ein Plus:
- Production experience with AWS (networking, security services, deployments);
- Experience with other systems languages (Go, C++);
- Experience building or contributing to MCP servers or tooling;
- Contributions to proxy/gateway projects such as Envoy, Kong, Traefik, Linkerd, or similar;
- Experience with xDS protocol or Kubernetes Gateway API;
- Startup experience and comfort working in high-ambiguity environments.
Arbeitsbedingungen
5-Tage-Woche, 8-Stunden-Tag, flexible Arbeitszeiten;
Alle UA-Feiertage sind arbeitsfreie Tage;
Urlaubs- und Krankheitszeiten werden vom Unternehmen übernommen;
Fernarbeit.