Senior Full-Stack Engineer
Role details
Job location
Tech stack
Job description
Join a high-agency, AI-native startup (12-14 team members, ex-founders & CTOs) building what could become the Claude for complex jobs - a personal AI chief of staff designed for knowledge workers. This is a senior, product-first engineering role with end-to-end ownership, where engineers don't just code - they shape the product, interact with users, and drive outcomes. If you're looking for structured environments, tickets, or low ownership - this is not the role. What You'll Do Own product features end-to-end (no ticket-taking culture) * Build backend-heavy systems with AI model integrations & agent workflows Contribute to infrastructure and DevOps where needed Implement lightweight frontend components when required * Work directly with users and translate feedback into shipped improvements Operate in a fast-moving, ambiguity-tolerant environment Tech Stack
- TypeScript · React · Next.js · Node.js
- PostgreSQL · AWS · Cloudflare
- AI model integrations (multi-provider)
Requirements
Senior Full-Stack Engineer (backend-leaning) Strong systems design & architecture thinking Experience building AI-enabled products (non-negotiable) Hands-on exposure to: Agentic workflows Agent loops / orchestration Model interaction patterns Comfortable owning infrastructure & deployment layers High agency: operates independently, drives decisions, ships fast
Benefits & conditions
Former founder / early engineer Side projects with LLMs (OpenAI, Claude, etc.) Compensation & Benefits $200,000 - $240,000 base salary Equity (early-stage upside) Paid trial period (2 weeks, flights + accommodation covered) High-impact role in a venture-backed AI company Location & Eligibility (Strict) On-site: San Francisco (non-negotiable) US-based candidates preferred European candidates considered if O-1 eligible Must be willing to relocate and work fully in-office Who Should NOT Apply No hands-on AI product experience Only enterprise / low-ownership environments Prefer remote or hybrid work Passive or low-agency working style Ideal Candidate Profile Built or shipped AI products (from scratch or early stage) Thinks in systems, not just code Thrives in high-energy, direct communication environments Comfortable with ambiguity, speed, and ownership Why This Role
- Work on a next-gen AI system beyond chatbots real-world task execution
- Join post-fundraising, pre-scale phase maximum impact
- Collaborate with high-agency builders (ex-founders, CTOs)
- Own features from idea architecture production iteration
- Direct exposure to users, feedback loops, and product decisions
This is where builders come to define the next era of AI - if you're ready to own, ship, and shape the future, we want to hear from you...