Software Engineer, Full Stack, Tinker

Thinking Machines Lab's mission is to empower humanity through advancing collaborative general intelligence.

We're looking for a full stack engineer to build and ship the products and services that Tinker users interact with every day.

Responsibilities

• Build and extend Tinker's APIs and backend services in Python and Rust, from job submission and orchestration to billing and usage tracking.
• Ship user-facing product surfaces , console and future tools , with React and TypeScript.
• Improve the developer experience for Tinker users: SDK ergonomics, error messages, API design, onboarding flow.
• Improve system reliability, observability, and security across Tinker's production environment; participate in on-call.
• Build internal tooling that accelerates the Tinker research and infrastructure teams.

Requirements

• Bachelor's degree or equivalent experience in computer science, engineering, or similar.
• Proficiency in at least one backend language (Python and Rust).
• Some familiarity with React, TypeScript, or mobile platforms.
• Thrive in a highly collaborative environment involving many, different cross-functional partners and subject matter experts.
• A bias for action with a mindset to take initiative to work across different stacks and different teams where you spot the opportunity to make sure something ships.

Preferred Qualifications

• 4+ years building backend systems in production.
• Experience designing and maintaining backend APIs at scale, especially for developer-facing platforms.
• Experience building tooling or products for ML training, fine-tuning, or inference workloads.
• Familiarity with distributed training infrastructure, job orchestration, and GPU scheduling.
• Ability to build high-quality, production-level UIs from prototype to polish.
• Experience with developer experience work , SDK design, CLI tooling, API ergonomics, documentation.

Logistics

• Location: San Francisco, California or New York, New York.
• Compensation: $350,000 - $475,000 USD.
• Visa sponsorship: We sponsor visas.
• Benefits: Thinking Machines offers generous health, dental, and vision benefits, unlimited PTO, paid parental leave, and relocation support as needed.