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Software Engineer, Full Stack, Tinker

Thinking Machines Lab· Core Engineering, Product, and Infrastructure
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San Francisco, CA$350k - $475kFull-timePosted 3mo ago

About the role

Full stack engineer role building and shipping Tinker products and services, spanning frontend, backend, and infrastructure for a fine-tuning API used by researchers and developers.

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.

Qualifications

  • 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 with cross-functional partners.
  • Bias for action and initiative to work across stacks and teams to ship features.

Skills

Required:Backend development (Python, Rust)Frontend web development (React, TypeScript)
Nice to have:APIs and developer toolingDevOps / on-call reliability

Benefits

  • Generous health, dental, and vision benefits
  • Unlimited PTO
  • Paid parental leave
  • Relocation support as needed
Last updated Jul 22, 2026. Interested? Apply on the company site.
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About Thinking Machines Lab

Connectionism: Research Blog by Thinking Machines Lab

Thinking Machines Lab is an artificial intelligence research and product company. We’re building a future where everyone has access to the knowledge and tools to make AI work for their unique needs and goals.

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