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  <jobs>
    <job>
      <externalid>594b20c4-c28</externalid>
      <Title>Infrastructure Engineer, Security</Title>
      <Description><![CDATA[<p>We&#39;re looking for an infrastructure engineer to own and evolve the security infrastructure that underpins our foundation models. In this role, you&#39;ll work across compute, storage, networking, and data platforms, making sure our systems are secure, reliable, and built to scale.</p>
<p>You&#39;ll shape controls, architecture, and tooling so that security is part of how the platform works by default. You&#39;ll partner closely with research and product teams, enabling them to move quickly while keeping our models, data, and environments protected.</p>
<p>Key responsibilities include:</p>
<p>Architecting security patterns for platforms and services, including network segmentation, service-to-service authentication, RBAC, and policy enforcement in Kubernetes and cloud environments.</p>
<p>Managing identity, access, and secrets for humans and services: workload and cross-cloud identity, least-privilege IAM, and secrets management.</p>
<p>Building secure platforms for data ingestion, processing, and curation: classification, encryption, access controls, and safe sharing patterns across teams.</p>
<p>Writing threat models and reviewing designs with researchers and engineers to help them ship features and experiments in a safe, scalable way.</p>
<p>Automating security checks and building guardrails: policy-as-code, secure infrastructure baselines, validation in CI/CD, and tools that make the secure path the easiest one.</p>
<p>Requirements include:</p>
<p>Bachelor&#39;s degree or equivalent experience in engineering, or similar.</p>
<p>Strong background with containers and orchestration (e.g., Kubernetes) and how to secure them (namespaces, network policies, pod security, admission controls, etc.).</p>
<p>Practical experience with Infrastructure as Code (Terraform or similar), including secure patterns for provisioning networks, IAM, and shared services.</p>
<p>Solid understanding of cloud networking and security: VPCs, load balancers, service discovery, mTLS, firewalls, and zero-trust-style architectures.</p>
<p>Proficiency with a systems language such as Rust and scripting in Python for building platform components and internal tools.</p>
<p>Evidence of owning complex, production-critical systems, including debugging issues that span infra, security, and application layers.</p>
<p>Preferred qualifications include experience with ML infrastructure, GPU clusters, or large-scale training environments, as well as background in AI labs, HPC environments, or ML-heavy organizations.</p>
<p style="margin-top:24px;font-size:13px;color:#666;">XML job scraping automation by <a href="https://yubhub.co">YubHub</a></p>]]></Description>
      <Jobtype>full-time</Jobtype>
      <Experiencelevel>senior</Experiencelevel>
      <Workarrangement>onsite</Workarrangement>
      <Salaryrange>$200,000 - $475,000 USD</Salaryrange>
      <Skills>Kubernetes, Infrastructure as Code, Cloud Networking and Security, Systems Language (Rust), Scripting (Python), ML Infrastructure, GPU Clusters, Large-Scale Training Environments, AI Labs, HPC Environments</Skills>
      <Category>Engineering</Category>
      <Industry>Technology</Industry>
      <Employername>Thinking Machines Lab</Employername>
      <Employerlogo>https://logos.yubhub.co/thinkingmachineslab.com.png</Employerlogo>
      <Employerdescription>Thinking Machines Lab is building a future where everyone has access to the knowledge and tools to make AI work for their unique needs and goals.</Employerdescription>
      <Employerwebsite>https://thinkingmachineslab.com/</Employerwebsite>
      <Compensationcurrency></Compensationcurrency>
      <Compensationmin></Compensationmin>
      <Compensationmax></Compensationmax>
      <Applyto>https://job-boards.greenhouse.io/thinkingmachines/jobs/5015964008</Applyto>
      <Location>San Francisco</Location>
      <Country></Country>
      <Postedate>2026-04-18</Postedate>
    </job>
  </jobs>
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