Posted 22 July, 2026
Senior Fullstack Engineer
RecruitNRefer
San Francisco, CA, US
Full Time
Job Description
What we're looking for?
\nWe need someone with a minimum of 3 years of experience shipping full-stack web applications at scale using Next.js/React and Python. You should be comfortable owning features end-to-end, from design docs to rollout and post-launch iteration, and have a strong code quality mindset. Bonus points if you have experience integrating LLM/memory features or familiarity with vLLM and model serving.
\n\nWhat you'll do:
\n- \n
- Ship end-to-end features: Design APIs, build UIs, write backend logic, own data models, and deploy to production. \n
- Build for scale & speed: Optimize latency, caching, and query patterns; keep pages snappy and backends reliable. \n
- Own quality: Write tests, enforce typing/linting, review PRs, and maintain clean, well-documented code. \n
- Collaborate deeply: Work with Design for great UX, with Research to integrate new memory capabilities, and with customers to refine requirements. \n
- Operate what you build: Add observability, set alerts, debug prod issues, and drive continuous improvements. \n
- Lead with product sense: Prioritize ruthlessly, make tradeoffs explicit, and iterate based on data and feedback. \n
- Go beyond your lane: Unblock teams, learn new tools on the fly, and do what it takes to deliver. \n
