Senior Full-Stack Engineer (Backend-Leaning) | San Francisco, USA
- On-site | San Francisco, USA
- $200,000 — $240,000 Base Equity
- AI Product | High-Agency Startup | 0-to-1 product build
Snapshot 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)
What We’re Looking For
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Senior Full-Stack Engineer (backend-leaning)
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Strong systems design & architecture thinking
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Experience building AI-enabled products (non-negotiable)
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Hands-on exposure to:
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Agentic workflows
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Agent loops / orchestration
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Model interaction patterns
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Comfortable owning infrastructure & deployment layers
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High agency: operates independently, drives decisions, ships fast
Bonus:
- Early stage startup experience
- 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…