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Senior Machine Learning Engineer

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Senior Machine Learning Engineer in USA

  • San Francisco, CA

Responsibilities

  • Design, develop, deploy, monitor, and test production ML models and AI services.
  • Use LLM APIs, prompt engineering, structured outputs, function calling, fine-tuning, classical models, and rules to build production systems.
  • Write clean, testable production software, APIs, monitoring, and integration code.
  • Partner with Product Engineering, Product, and cross-functional teams to translate business needs into ML solutions and define API contracts.
  • Build evaluation frameworks, run experiments, and iterate on model and system performance.
  • Automate processes, build agentic workflows, and contribute reusable skills and context to Checkr’s agentic platform.

Requirements

  • Bachelor’s or Master’s degree in Computer Science, Mathematics, or a related technical field, or equivalent depth from experience.
  • 6+ years of professional software development experience, including at least 2 years building ML systems that run in production.
  • Strong Python fluency and ability to write clean, testable, well-structured object-oriented code.
  • Hands-on experience using LLM APIs in production, including prompt engineering, structured outputs, function calling, cost management, and evaluation.
  • Experience building and maintaining APIs, working with CI/CD pipelines, and shipping code used by other engineers.
  • Experience with AI-assisted workflows, LLMs, code-generation tools, or agentic systems in production or operational contexts.
  • Preferred experience with MLOps platforms such as MLflow, SageMaker, or Vertex; document processing, OCR, or information extraction; PySpark or large-scale data processing; Ruby; compliance-sensitive domains; and dbt, Snowflake, or modern ELT tools.
  • Ability to communicate clearly with non-ML partners, operate with urgency through ambiguity, and take ownership of meaningful outcomes.

Benefits

  • Competitive cash and equity compensation with opportunity for advancement.
  • Learning and development allowance.
  • 100% medical, dental, and vision coverage.
  • Up to $25,000 reimbursement for fertility, adoption, and parental planning services.
  • Flexible PTO policy and monthly wellness stipend.
  • Hybrid in-office arrangement with at least three days per week at a Checkr hub; hubs include Denver, San Francisco, Nashville, and Santiago.
  • In-office perks include lunch five times per week, commuter stipend, snacks and beverages, and possible relocation stipend.

Salary: $207k - $244k/yr

Checkr

Checkr is a data platform designed to empower businesses to make safe and fair decisions. Catering to over 100,000 customers like DoorDash and Coinbase, it provides innovative technology that enables organizations to assess risk, ensure safety, and maintain compliance in building trustworthy work...

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