Software Engineer, AI & Data Systems

About the role

Join a small, fast-moving team building core platform capabilities and customer-facing products at a seed-stage people data and AI company. You'll work across backend, data infrastructure, and AI agent systems—taking ambiguous problems end-to-end from architecture through production ownership. This is a high-ownership role with direct exposure to founders and customers.

Responsibilities

• Build and ship customer-facing products and platform capabilities across backend, data, infrastructure, and frontend surfaces.
• Design and operate high-volume data pipelines and services at massive scale with strong reliability, security, and observability.
• Build AI agents, agent harnesses, and developer tools—then own them reliably in production at large scale.
• Make architecture decisions, explain tradeoffs, and iterate designs as assumptions evolve.
• Work directly with founders and customers to turn vague requests into clear product decisions and working software.
• Apply modern AI development tools aggressively while maintaining strong engineering judgment and accountability.

Requirements

• 1–6 years of software engineering experience, with at least one production system owned end-to-end from concept through deployment and operations.
• Strong backend coding skills: APIs, data models, and distributed systems.
• Experience at an early-stage startup (seed through Series A/B) shipping across both product and infrastructure.
• Hands-on experience building and operating high-volume data pipelines.
• Strong CS fundamentals, ideally from a rigorous academic background.
• Experience with AI-native development: LLMs, agent frameworks, or similar.
• Familiarity with identity resolution, data matching, or enrichment systems at scale is a plus.
• Available to start by mid-September 2026 for an on-site residency program.

Benefits

• Salary: $200,000 – $280,000 USD annually.
• Visa sponsorship is not available.

Schedule

This is a full-time, in-office role.

Location

On-site in San Francisco, CA, USA.