Senior Full-Stack Engineer (AI-Focused)

The Opportunity An established SaaS product is rebuilding itself around AI, and this hire sits at the center of that shift, working side by side with the CTO. You'll put at least one AI feature in customers' hands within your first 90 days, and within a year your work should show up in adoption and retention numbers. Small team, real autonomy, and a product that already reaches millions of people. What You'll Own - AI features from interface to model call: UI, services, APIs, and the LLM layer underneath - The in product AI agent, making it genuinely useful to customers, from prompt design through production evals - LLM pipelines that hold up under real traffic: RAG, tool calling, agent orchestration, and evaluation - MCP integrations that let customers work with the platform straight from their own AI tools - Speed, reliability and cost of every AI feature, with metrics that tie latency and quality to customer value - The AI first roadmap and architecture, shaped together with the CTO and product - How the team builds with coding agents: workflows, guardrails, and review norms others adopt What We're Looking For - 6+ years as a full stack engineer on production SaaS - Strong TypeS... Click Apply to read the full job description.