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About the role
As a Founding Engineer, you'll architect and build the core AI agents and infrastructure that power precision outbound at scale — then make them accessible through beautiful, intuitive interfaces. You'll work directly with customers, shape product direction, and own critical systems that drive revenue for 40+ YC companies and growing.
What You'll 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.
We're Looking For
- 1–6 years of experience building production systems and user-facing features.
- Full-stack expertise — strong with TypeScript, React, Next.js, 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.
