Senior Fullstack Engineer

Senior Fullstack Engineer

Location: On-site, San Francisco, CA

Compensation: $150,000 – $250,000 + Competitive Equity

Type: Full-time

An early-stage AI startup in San Francisco is hiring a Senior Fullstack Engineer to help scale their LLM-powered automation platform from product-market fit to tens of millions in ARR. You’ll work closely with the founding team, own key product initiatives end to end, and shape the technical roadmap. This is an opportunity for a high-ownership engineer to build real-world applications that people use, in a fast-paced, resourceful environment.

• Architect and ship major features across backend and frontend systems
• Lead end-to-end development of LLM-integrated tools and infrastructure
• Collaborate directly with founders and customers to define product direction
• Scale backend systems to support a growing user base
• Contribute to a high-performing, hands-on engineering culture

• 4–7 years of experience as a fullstack engineer, ideally in early-stage or founder/founding engineer roles
• Proven backend expertise:
  Python, Flask, Redis, Celery, GCP, Kubernetes
• Strong frontend skills:
  React, Type Script, Tailwind CSS
• Experience shipping and scaling production-grade products
• Comfortable in high-intensity environments with minimal process
• Side projects, open-source contributions, or “builder” energy is highly valued

• Experience integrating LLMs or building generative AI products
• Background in top engineering cultures (e.g., Stripe, Git Hub, Linear)
• Computer science degree or equivalent practical experience