Fullstack Engineer (Backend Focused)

ABOUT THE OPPORTUNITY

I’m partnering with a well-funded early-stage technology startup that is building infrastructure for the next generation of AI-powered software. They’re looking for a strong Fullstack Engineer to help develop the systems and infrastructure behind the platform.

You’ll work across a broad range of backend challenges, including building scalable services, developing APIs, and creating infrastructure capable of supporting AI-driven applications. The role offers significant ownership and the opportunity to influence technical direction at an early stage. This is a full-time on-site position in San Francisco, CA.

JOB RESPONSIBILITIES

• Completely own full features end-to-end & collaborate with the founders to scope out the problem space.
• Design and implement scalable APIs using TypeScript and modern web frameworks (Hono/Node.js).
• Architect and optimize PostgreSQL databases, writing performant queries and managing complex schema evolution.
• Implement real-time ML inference pipelines and recommendation systems.
• Build containerized infra for secure and isolated AI agent execution environments.
• Flex across the full stack to support our customers.
• Ship fast.

JOB QUALIFICATIONS

• 2 -​ 5 years of experience as a full-​stack engineer at a an early stage startup (Seed -​ Series C).
• 2+ years of full-​time experience (at least 1 year in backend roles).
• Deep proficiency with Javascript,​ Node,​ and Python.
• Relentless focus on user success with exceptional quality standards.
• Builder or owner mentality.
• Degree in CS or a related field.

NICE TO HAVE SKILLS

• Experience with ML infrastructure,​ model serving,​ and real-​time inference.
• Founder or founding engineer experience.
• Experience with TypeScript and PostgreSQL.

JOB BENEFITS

• Highly competitive salary.
• Generous equity participation.
• A clear path for career growth.

RIGHT TO REPRESENT

By applying to this position, you acknowledge and agree to be represented by LYA Collective for this opportunity.

Compensation

The base pay range for this role is $180,000 – $220,000 per year.