Software Engineer, Full Stack, Tinker

Thinking Machines Lab

$350K — $475K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in computer science, engineering, or equivalent experience.
  • Proficiency in at least one backend language (Python and Rust preferred).
  • Some familiarity with React, TypeScript, or mobile platforms.
  • Ability to thrive in a collaborative environment with cross-functional teams.
  • Strong initiative and action-oriented mindset.

Responsibilities

  • Build and extend APIs and backend services in Python and Rust.
  • Ship user-facing products using React and TypeScript.
  • Enhance the developer experience through improved SDK ergonomics and API design.
  • Improve system reliability and security in the production environment.
  • Create internal tools to support Tinker's research and infrastructure teams.

Benefits

  • Generous health, dental, and vision benefits.
  • Unlimited paid time off (PTO).
  • Paid parental leave.
  • Relocation support as needed.
Full Job Description
About the Role

We're looking for a full stack engineer to build and ship the products and services that Tinker users interact with every day. You'll work across frontend, backend, and infrastructure building the Tinker console, developer tools, and whatever Tinker needs most.
What You'll Do
  • 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.
Skills and Qualifications

Minimum qualifications:
  • Bachelor's degree or equivalent experience in computer science, engineering, or similar.
  • Proficiency in at least one backend language (we use 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 - we encourage you to apply if you meet some but not all of these:
  • 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: This role is based in San Francisco, California or New York, New York.
  • Compensation: Depending on background, skills and experience, the expected annual salary range for this position is $350,000 - $475,000 USD.
  • Visa sponsorship: We sponsor visas. While we can't guarantee success for every candidate or role, if you're the right fit, we're committed to working through the visa process together.
  • Benefits: Thinking Machines offers generous health, dental, and vision benefits, unlimited PTO, paid parental leave, and relocation support as needed.

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