Senior Full Stack Software Engineer, Tech Lead

About Haven - Shaking up an old, stodgy market
Haven is an AI-powered SaaS platform making government contracts more accessible to small and medium sized businesses. We’re pre-seed, mission-driven, and backed by respected early investors. Since launch, we’ve already helped our customers win over $50 million in contracts they would have never found, proof that small businesses can win big with the right support.

This isn’t a typical job posting. We’re looking for someone who wants to build, shape, learn, and grow into a larger role alongside the founding team.

The Role
You’ll step in as an early technical leader, working hands-on while shaping product, process, and culture. This is a role for someone who is just as excited to code as they are to help define vision, someone who thrives in ambiguity, loves shipping fast, and stays close to customers. You’ll also be building on a clean, thoughtfully refactored codebase designed for speed and scalability.

What You’ll Do

• Lead development across our TypeScript monorepo (Next.js + NestJS + Prisma + Postgres)
• Architect and scale our AI-powered matching/search platform
• Manage large-scale data ingestion/enrichment pipelines (BullMQ experience +)
• Build with speed while maintaining security & compliance standards
• Collaborate with the Founders and team to shape roadmap and features

What We’re Looking For

• 4–8+ years in full-stack web engineering (React/Next.js, NestJS/Node.js)
• Bachelor’s degree in CS (or equivalent practical experience)
• Strong SQL/Postgres experience with high-volume data ingestion
• Passionate/familiar with AI/ML integrations (LLMs, embeddings, vector search)
• Comfort running infra on AWS with Kubernetes/Docker
• Robust Git/GitHub habits, curiosity, and attention to detail
• Clear communicator who values feedback and iteration
• Startup experience, bias toward learning, speed, and conviction
• Bonus: GovTech or compliance-heavy industries, passionate about supporting the little guy (small businesses)

Who You Are

• Passionate coder and product thinker
• Obsessive about learning, growth, and building community
• Hungry to take ownership early and grow with the company
• Pragmatic: you know when to move fast and when to slow down
• Relentless, you see obstacles as part of the process

Compensation

• Salary competitive for pre-seed stage, with a meaningful equity package
• Open to full-time or contract-to-hire
• Los Angeles preferred (we have a sweet office), but open to exceptional candidates elsewhere