Staff Full-Stack Engineer
Company:Promptfoo
Location:Bay Area
Languages:English
Seniority level:Staff, 6+ years
Experience:6+ years
Skills:
LeadershipNode.jsPythonSoftware DevelopmentSQLFull Stack DevelopmentReact.jsTypeScriptMentoring
Requirements:
6+ years building production software with staff-level impact Strong TypeScript plus comfort with React, Node.js, and SQL Experience shipping or integrating LLM-powered systems Track record of open-source contribution or maintenance Habit of writing tests and leaving code cleaner than you found it Clear written and verbal communication; enjoy talking with customers Thrive on ownership and quick iteration in an early-stage startup Experience mentoring engineers and raising team capabilities Demonstrated ability to lead technical initiatives and influence engineering culture
Responsibilities:
Chat with ML, security, and DevOps teams to map pain points Turn feedback into concise specs and quick prototypes Build React UI, Node.js/TypeScript APIs, and Python plug-ins Own end-to-end delivery from design to docs Add tests, refine types, and optimize evaluation pipelines Improve CI/CD, linting, and release automation Mentor mid-level and senior engineers Set technical standards and best practices Lead architectural discussions Foster a culture of learning Review community PRs Mentor contributors Polish docs Demo new features
