Linkup
Staff Backend Engineer
NYC (NY), San Francisco (CA) or Paris (FR) · Staff · Full-time · Posted Nov 3, 2025
- Experience
- 6 years minimum.
About the job
Designs and operates large-scale backend infrastructure and products that provide fresh, structured knowledge for AI agents.
What you'll do
- Design high-performance infrastructure and develop, deploy, and maintain features end-to-end.
- Lead technical decisions and cross-functional initiatives, and uphold engineering quality through code reviews and knowledge-sharing.
- Work autonomously with the CTO and Software & ML teams on technical roadmaps.
What they ask for
- At least 6 years of backend experience building and operating large-scale distributed systems.
- Solid grasp of infrastructure and CI/CD best practices.
- Experience with or strong curiosity about AI technologies, with a commitment to continuous learning.
Tools
TypeScript / Node.js, Python, Rust, PostgreSQL, Redis, NATS, gRPC, Vespa
AI focus
Build backend systems for AI-powered applications, including indexing web pages, streaming embeddings, and automatically retraining ranking on agent clicks.
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