Founding Engineer San Fran
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Job Location:
San Francisco, CA - USA
Monthly Salary:
Not Disclosed
Posted on:
2 hours ago
Vacancies:
1 Vacancy
Job Summary
Job Description:
Seniority
0 - 4 years of experience in full-stack software engineering building production systems and user-facing features
Work experience
Experience at a B2B SaaS company or VC-backed tech startup e.g. Scale AI or Decagon
Experience building AI/ML products especially with LLMs or AI agents
Education
Undergrad in CS
Olympiads RSI (Research Science Institute) and other high school competitions
Hard skills
Systems thinking: understand distributed systems concurrency and performance optimization
Full-stack expertise strong with TypeScript React and Python
Soft skills
High agency and ownership; proactively identifies and solves problems
Traits to avoid
Engineers who are frontend-only
Candidates who require significant step-by-step direction to complete tasks
Individuals from large enterprise slow-moving e.g. SAP JP Morgan
About this role
About the role
As a Founding Engineer youll architect and build the core AI agents and infrastructure that power precision outbound at scale then make them accessible through beautiful intuitive interfaces. Youll work directly with customers shape product direction and own critical systems that drive revenue for 40 YC companies and growing.
What Youll Build
- AI agents that discover hyper-targeted leads by understanding ideal customer profiles conference attendees hiring signals and more.
- Real-time content monitoring systems that track what prospects are posting sharing and engaging with across social platforms.
- Multi-channel sequence orchestration across email and LinkedIn managing dozens of email domains and sender accounts.
- Enterprise-grade infrastructure that scales to hundreds of concurrent users multi-tenant architecture with role-based access control end-to-end encryption SOC 2-ready audit logging and rate limiting built in from day one.
- Polished user interfaces that turn complex outbound workflows into experiences sales teams can set up in minutes.
Were Looking For
- 14 years of experience building production systems and user-facing features.
- Full-stack expertise strong with TypeScript React and Python. Systems thinking you understand distributed systems concurrency and performance optimization.
- Product mindset you talk to customers understand their pain and ship solutions that solve real problems.
- High agency you identify problems and fix them without being asked.
Bonus Points
- Experience with AI/ML particularly LLMs prompt engineering or building AI agents.
- Previous startup experience or experience building successful B2B SaaS products.
- Design sense you can build UIs that dont just work but feel great to use.
