Black Forest Labs
Developer Experience Engineer
$140K–$190K
San Francisco (United States) · On-site · Full-time · Posted May 27, 2026
- Experience
- 4+ years building software.
About the job
Own and improve Black Forest Labs’ end-to-end developer experience across APIs, SDKs, dashboards, and agent-facing platform surfaces.
What you'll do
- Design and ship improvements across developer-facing APIs, SDKs, dashboard surfaces, MCP server, and onboarding.
- Partner with platform engineering on API design and with product engineering on dashboard features and developer funnel improvements.
- Build and maintain entry points and patterns for developers and agents, including SDKs, MCP, skills, and typed surfaces.
What they ask for
- 4+ years building software, including meaningful experience with developer-facing products.
- Full-stack skills: TypeScript / React / Next on the front end and Python on the back end.
- Deep API design knowledge, including error formats, pagination, async job shapes, and breaking changes.
- Fluency with MCP, tool use, and major agent runtimes; experience shipping developer-facing products used by external developers.
Nice to have
- Go or Rust experience.
- Experience building an MCP server used by real users or agents, or with media-generation or other high-latency async APIs.
Pay
€140,000 - €190,000 EUR base salary
Tools
TypeScript, React, Next, Python, Go, Rust, MCP, OpenAPI
AI focus
Make the platform effective for AI agents by owning agent-facing surfaces, MCP server, skills, onboarding, and machine-readable interfaces; test whether agents can use APIs and SDKs correctly.
Model-written summary · the original posting is authoritative