Software Engineer, Infrastructure
- Salary
- $300,000 - $400,000
- Level
- Mid
- Work type
- On-site · San Francisco
- Visa
- Sponsors visas
Open. First seen 6 November 2026.
About the role
Thinking Machines Lab's standard text
About Thinking Machines
The mission of Thinking Machines is to build AI that extends human will and judgment. We are training frontier models with Inkling, developing Tinker to let people make models their own, and crafting interfaces that broaden human-AI communication. We believe the future worth building is human, and we're hiring people who want to build it.
About the Role
We're hiring a Software Engineer, Infrastructure to design and build the distributed systems that power our model training and serving platforms. You'll work on the systems underlying everything we do — from the clusters that train our frontier models with Inkling, to the multi-tenant serving infrastructure behind Tinker.
This is a foundational infrastructure role at a fast-moving startup. You'll have real ownership over systems that run at large scale, and your work will directly determine how quickly our research and product teams can iterate.
What You'll Do
- Design, build, and operate distributed systems that support large-scale model training and inference across thousands of accelerators
- Build and maintain core infrastructure, including orchestration, scheduling, storage, and resource management systems
- Improve the reliability, performance, and observability of infrastructure used across research and product teams
- Partner with researchers and platform engineers to understand infrastructure needs and turn them into robust, well-abstracted systems
- Debug and resolve complex distributed failures across the stack, from networking and storage to compute and scheduling
- Write and maintain internal libraries and APIs, primarily in Python and Go, that other engineers build on
Skills & Qualifications
Minimum Qualifications
- Demonstrated expertise designing and developing large-scale distributed systems
- Strong proficiency in Python and Go
- Experience building, deploying, and operating production infrastructure at scale
- Solid grounding in distributed systems fundamentals, such as consensus, consistency, fault tolerance, and networking
Preferred Qualifications
- Experience with ML infrastructure, such as training orchestration, job schedulers, or distributed storage and data systems
- Experience operating large-scale GPU or TPU clusters
- Experience with container orchestration (e.g. Kubernetes) and infrastructure-as-code
- Contributions to open-source infrastructure projects
- Comfortable working with high autonomy in a fast-changing, early-stage environment
Logistics
- Location: This role is based in San Francisco, CA.
- Compensation: Depending on background, skills and experience, the expected annual salary range for this position is $300,000 - $400,000 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.
What this role asks for
Particular to this role
Golang
Rare in Thinking Machines Lab's other 33 open postings.
Standard for software engineering roles
Python
Common in software engineering postings at any company.
86% of this description is written for the role. The rest is Thinking Machines Lab's standard text, folded away below.
Compared with Thinking Machines Lab's other open jobs.
The team: Core Engineering HIRES STEADILY
This role is one of 32 open in Core Engineering. 2 were posted in the last 30 days and the oldest in June: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Python (22 of 32), Kubernetes (16 of 32), Rust (14 of 32), Linux (10 of 32), Machine Learning (8 of 32), Golang (6 of 32), LLM (6 of 32)
OTHER ROLES ON THIS TEAM
- Brand Designer posted Oct 28
- Brand Designer posted Oct 28
- Technical Program Manager, Supercomputing posted Oct 6
- Technical Program Manager, Supercomputing posted Oct 6
- Software Engineer, Inference posted Oct 2
- Software Engineer, Inference posted Oct 2
- Software Engineer, Infrastructure posted Oct 1
- Developer Relations Engineer posted Sep 29
- Developer Relations Engineer posted Sep 29
- Software Engineer, Sandboxing posted Sep 22
- Software Engineer, Sandboxing posted Sep 22
- Software Engineer, Product posted Aug 31
- Software Engineer, Product posted Aug 31
- Site Reliability Engineer, Post Training posted Aug 31
- Site Reliability Engineer, Post Training posted Aug 31
- Site Reliability Engineer, Production posted Aug 31
- Site Reliability Engineer, Production posted Aug 31
- Software Engineer, Evaluation Platform / Infra posted Aug 31
- Software Engineer, Evaluation Platform / Infra posted Aug 31
- Software Engineer, Research Tools posted Aug 31
- Software Engineer, Research Tools posted Aug 31
- Software Engineer, Systems Generalist posted Aug 4
- Software Engineer, Systems Generalist posted Aug 4
- Engineering Manager posted Aug 4
- Engineering Manager posted Aug 4
- Software Engineer, Supercomputing posted Aug 4
- Software Engineer, Supercomputing posted Aug 4
- Reliability Engineer, Supercomputing posted Jun 24
- Reliability Engineer, Supercomputing posted Jun 24
- Network Engineer, Supercomputing posted Jun 24
- Network Engineer, Supercomputing posted Jun 24
From the team and dates on Thinking Machines Lab's own job board.
Other openings for this role
2 open postings for this role in San Francisco, first posted 2 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.
- 6 November 2026 – open (this posting)
- 2 October 2026 – open
Salary context
27 other open postings titled Software Engineer, Infrastructure state a salary: median USD 180,000 to USD 270,000 a year.
See Software Engineer salaries in San Francisco →
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