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.

Skills

typescript,python,node.js,postgresql,javascript