Senior Product Engineer – Fullstack and Frontend - San Francisco, CA (Onsite)

We are looking for a Senior Product Engineer who thrives in a fast-paced, in-person environment and takes pride in owning features end to end. This role is for engineers who combine strong technical fundamentals with a passion for building products that scale, perform, and make a meaningful impact.

Location: San Francisco, California

What you will do

• Architect, build, and ship features across the stack, from backend systems to polished user interfaces, with iteration cycles measured in hours.
• Partner directly with founders to design systems where AI must make real-time decisions balancing precision, speed, and user trust.
• Scale the product into new industries and workflows through rapid pilots, live demos, and customer-facing iterations.
• Contribute to the core platform fundamentals engineered to support billions of users.
• Operate with urgency and ownership, ensuring every project reflects high standards of craft and accountability.

Technical environment

• Frontend: React, Next.js, TypeScript
• Backend: MySQL, ClickHouse, Python
• AI/ML: Large Language Models integrated into real-time decision systems
• Preferred exposure: Event sourcing, stream processing, Elixir, Rust, Scala

What we are looking for

• Deep technical expertise with React, Next.js, TypeScript, MySQL, and ideally ClickHouse.
• Proven ability to deliver complex, high-impact products beyond internal tools or simple dashboards.
• Startup experience or strong signals such as top-tier schools, open-source contributions, or tenure at leading technology companies.
• Strong fundamentals in system design, scalability, and code quality, with clear opinions about your craft.
• Bonus points for experience in event-driven architectures, distributed systems, or advanced programming languages such as Elixir, Rust, or Scala.

What is not a fit

• Frequent job changes or unexplained employment gaps.
• Consulting-heavy backgrounds without product ownership.
• Long-time managers or CTOs seeking to return to individual contributor roles.
• Primarily infrastructure or DevOps-focused experience without product engineering depth.

Culture

• Ownership and urgency: a team that values accountability and speed.
• Craft and debate: spirited discussions, bold ideas, and building products we are proud of.
• In-person collaboration: close, hands-on work in San Francisco for faster iteration and deeper alignment.

Compensation and benefits

• Salary range: 130,000 to 210,000 depending on experience, interview performance, and location.
• Relocation assistance: available.