Software Engineer – ML Infrastructure

People Culture Talent
San Francisco, CA
On-site

Who this role is best for

Best suited to experienced software engineers with a focus on machine learning infrastructure working in distributed systems and collaborative environments.

Best fit for

  • Experienced software engineers with a background in building machine learning infrastructure for distributed systems.
    — “Design and build infrastructure for model training and production serving.”
  • Candidates who have led architectural decisions and operated systems over time with evolving requirements.
    — “Experience owning systems over time, including maintenance, reliability, and improvements as requirements evolve.”
  • Individuals with hands-on experience in PyTorch, model serving engines, and distributed training frameworks.
    — “Hands-on experience with PyTorch, model serving engines, and distributed training frameworks.”

How to stand out

  • Highlight experience in end-to-end ML infrastructure projects, from design to ongoing operations.
    — “Lead architectural decisions, explain trade-offs, and carry projects from initial design through deployment and ongoing operation.”
  • Demonstrate expertise in optimizing compute utilization and workload scheduling in distributed systems.
    — “Improve compute utilization, workload scheduling, and performance across distributed systems.”
  • Showcase your ability to use profiling and monitoring to drive infrastructure improvements.
    — “Use profiling and monitoring to identify bottlenecks, troubleshoot failures, and guide improvements.”
  • Emphasize contributions to automated testing and measurement for ML workloads.
    — “Automate testing and measurement to help teams assess changes consistently.”
Pace · SteadyCollaboration · MediumAutonomy · HighDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • infrastructure for model training
  • production serving
  • performance optimization
Typical background
software engineeringmachine learning infrastructure

Skills & requirements

Required

Software EngineeringMachine LearningDistributed Systems

Preferred

Large Language Model Workloads

Stack & domain

PyTorchModel_serving_enginesDistributed_training_frameworksLeadershipCommunicationProblem_solvingTeamworkMachine_learningDistributed_systemsReinforcement_learning

About the role

Original posting from People Culture Talent via Ashby

Note: We are recruiting on behalf of our valued client. This opportunity is for a position with their organization, not with People Culture Talent. We're excited to help connect talented professionals with this exceptional team!

THE ROLE

We’re seeking an experienced ML Infrastructure Software Engineer to build and improve infrastructure for machine learning workloads. You’ll partner with researchers and engineers to support experimentation, training, evaluation, and production deployment, with a focus on reliability and performance.

WHAT YOU’LL OWN

  • Design and build infrastructure for model training and production serving.
  • Develop reliable pipelines and shared tools that help teams run and manage machine learning workloads.
  • Improve compute utilization, workload scheduling, and performance across distributed systems.
  • Use profiling and monitoring to identify bottlenecks, troubleshoot failures, and guide improvements.
  • Automate testing and measurement to help teams assess changes consistently.
  • Lead architectural decisions, explain trade-offs, and carry projects from initial design through deployment and ongoing operation.
  • Collaborate with researchers and engineering teams to turn evolving requirements into maintainable systems.

WHAT YOU’LL BRING

  • Substantial software engineering experience with technical ownership at Senior Engineer level or equivalent.
  • A track record of personally designing, building, and operating core machine learning infrastructure.
  • Hands-on experience with PyTorch, model serving engines, and distributed training frameworks
  • Strong experience with distributed systems and large-scale compute environments, including GPU-based workloads.
  • Solid background in reinforcement learning (RL) post-training infrastructure, RLHF, or automated model evaluation pipelines
  • Practical experience with modern machine learning frameworks and their supporting infrastructure.
  • Strong systems design, debugging, and performance optimization skills.
  • Clear, concise communication and the ability to explain your contributions, architectural choices, and technical trade-offs.
  • Experience owning systems over time, including maintenance, reliability, and improvements as requirements evolve.

PREFERRED EXPERIENCE

  • Experience supporting both training infrastructure and production model deployment.
  • Experience with large language model workloads is a plus, but not required. Infrastructure experience with other types of machine learning models is equally relevant.

Source: People Culture Talent careers (Ashby)

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