Mercor logo

Machine Learning Engineer

MercorSan Francisco
Apply Now
Mercor logo

Machine Learning Engineer

Mercor

Apply Now

Mercor is a profitable Series C company valued at $10 billion, focused on the intersection of labor markets and AI research. They are seeking a Senior Software Engineer to take ownership of complex projects that support leading AI companies, with responsibilities including system design, mentoring engineers, and collaborating with product teams. The role requires strong coding skills in Python and a deep understanding of distributed systems.

Qualification

  • Strong coding fundamentals in Python (primary backend language).
  • Deep understanding of distributed systems, scalability challenges, and system design.
  • Experience shipping production systems at scale in high-growth or high-stakes environments.
  • Ability to reason about trade-offs and make decisions balancing speed and reliability.
  • Strong communication skills with an ability to align technical and business goals.

Responsibility

  • Design, build, and scale production-grade backend APIs, services, and infrastructure.
  • Take ownership of system design and architecture decisions that impact core workflows.
  • Mentor and support junior engineers through code reviews, pair programming, and design discussions.
  • Partner with Product and Design to deliver features quickly without sacrificing quality or scalability.
  • Anticipate technical bottlenecks, propose solutions, and drive initiatives that increase reliability.
  • Contribute to the systems that enable OpenAI, Anthropic, Google, and others to train and evaluate their models.

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