Founding Full Stack Engineer
Raydar
Founding Full Stack Engineer
Raydar
AI-powered recruiting agency for tech roles
Raydar · San Francisco, United States · Full-time · Posted 2026-10-12
Salary: USD 180,000–230,000
Workplace: on_site
About the company
Our client is a fast-growing software company.
The role
Raydar is recruiting for this role on behalf of our client. Join a very small engineering group as an early hire, working across the front end, back end and infrastructure of a customer-facing software product. You will ship features, diagnose production issues and help set technical standards for future engineers. Expect broad ownership with little prescribed structure.
What you'll do
- Build and ship features across the full stack, from user interface to backend services.
- Develop and refine systems built on large language models, including conversation flow, tool use and voice.
- Prototype adaptive interface components and turn ideas into working demos quickly.
- Build and maintain an evaluation pipeline that measures output quality and catches regressions.
- Investigate production issues by reviewing logs, tracing root causes, rolling back changes and adding tests.
- Design infrastructure for versioning and safe previewing of changes before release.
- Create low-latency, reliable infrastructure so users get instant responses.
- Take on whatever work is needed, including UI fixes, data migration scripts and customer issue debugging.
- Help establish engineering culture and practices as the team grows.
What we're looking for
- Prior full stack engineering work at a growing software startup that has paying users.
- A track record of designing polished interfaces and shipping product features that users directly interact with.
- Working proficiency in React and Python.
- Hands-on delivery of AI-powered features in production, such as LLM-driven assistants, retrieval pipelines or orchestration layers.
- A bachelor's degree in computer science.
- Comfort with ambiguity and a strong sense of ownership.
- Good product instincts and enthusiasm for turning user feedback into code.
- Sound judgment about when work is ready to ship, and the ability to move quickly without creating hidden problems.
- Experience running systems that real users depend on, and an understanding of how they fail.
- Interest in closing the gap between a demo and a reliable production system through evaluation and iteration.
Bonus points
- Experience at a sales technology startup.
Compensation and benefits
- Base salary: USD 180,000 to 230,000 per year
- Equity
Location and work model
- San Francisco, CA, United States
- On-site, 5 days per week in office
- Full-time
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Raydar is an AI-powered talent acquisition firm that serves tech-focused organizations on a contingency basis, charging client companies only after a successful hire. It uses proprietary AI to identify a large pool of candidates and conducts a short 15-minute AI-driven interview (recorded and transcribed) before human recruiters review materials, provide interview prep, and assist with offers and negotiations. What sets it apart is the blend of automated sourcing and screening with hands-on human oversight and tailored client support. Its goal is to help organizations hire more efficiently by speeding up sourcing while maintaining thorough evaluation and negotiation assistance.
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