Senior ML Engineer

Saris AI

$130K — $180K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 4+ years of experience in ML or AI engineering, demonstrating proficiency in production ML systems.
  • Strong hands-on expertise with LLMs, prompt engineering, evals, and model routing.
  • Background in developing tooling and systems with tangible customer impact.
  • Pragmatic approach to trade-offs in engineering decisions, favoring timely delivery over perfection.
  • Ability to navigate and resolve scoped problems in ambiguous settings, delivering effective solutions.
  • Customer-focused mindset, prioritizing user impact in ML decision-making.
  • Collaborative spirit, elevating team performance through code reviews and effective communication.

Responsibilities

  • Build and lead the ML infrastructure for reliable and improvable AI systems, including evaluation frameworks and model observability.
  • Deliver customer-facing AI features regularly while concurrently enhancing foundational infrastructure.
  • Define and execute the evaluation methods, LLM routing strategies, prompt engineering standards, and model selection processes.
  • Develop practical standards that enhance quality without hindering team speed.
  • Proactively contribute to the ML technical direction by presenting architectural options and assessing trade-offs.

Benefits

  • Opportunity to shape the future of AI systems and influence technical direction.
  • Work in a collaborative environment focused on impact and customer value.
  • Engagement with real-world applications, enriching professional experience in high-stakes settings.
  • Potential for involvement in regulated industries, offering unique challenges and advancements in your skill set.
Full Job Description
Your mission is to
  • Build and own the ML infrastructure that makes our AI systems reliable and improvable, including eval frameworks, prompt management, and model observability
  • Ship customer-facing AI features on a consistent cadence, balancing new capability delivery with foundational infrastructure work
  • Define and implement the team's approach to evals, LLM routing, prompt engineering, and model selection
  • Build pragmatic standards that improve quality without slowing the team down
  • Contribute to ML technical direction by proactively surfacing trade-offs and architectural options, helping the team make informed decisions on where ML is headed
Who You Are
  • 4+ years of experience in ML or AI engineering, with a track record of shipping production ML systems
  • Strong hands-on expertise with LLMs, prompt engineering, evals, and model routing
  • Experience building tooling and systems that have real customer impact
  • Pragmatic about tradeoffs: knows when good enough is the right call and avoids over-engineering; would rather ship something useful today than design something perfect next quarter
  • Comfortable working with moderate direction in ambiguous environments, you can take a scoped problem, work through it, and deliver a shipped solution
  • Builds with the end user in mind; understands how ML decisions impact real customers and prioritizes customer value over technical elegance
  • Elevates teammates through code review, pairing, and clear communication about technical decisions
Bonus Points If You
  • Have worked in regulated industries (fintech, banking, healthcare) where compliance and reliability are first-class concerns
  • Have experience with RAG systems, fine-tuning, or open-source LLM deployment alongside closed models
  • Are comfortable across the stack, data pipelines through APIs, and can plug gaps where needed
  • Have used or built prompt management or ML observability tooling

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