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Senior Frontier Agents Engineer (Applied AI)

Scale AI· Enterprise Engineering
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Hybrid (San Francisco, CA)$216k - $270kfull-timePosted 2mo ago

About the role

Senior role bridging cutting-edge AI research and production deployment to design, evaluate, and deploy intelligent systems that combine frontier models with structured knowledge, retrieval, and enterprise software for enterprise customers.

Responsibilities

  • Design and deploy production AI agents that leverage the latest advances in large language models, reasoning, retrieval, memory, and tool use.
  • Architect intelligent systems that combine LLMs, traditional machine learning, structured knowledge, enterprise data, and deterministic software into reliable production workflows.
  • Engineer customer intelligence layers, retrieval pipelines, memory systems, and knowledge representations that allow agents to reason over large, heterogeneous enterprise data.
  • Develop multi-agent systems that coordinate reasoning, planning, tool execution, and human oversight.
  • Translate frontier AI research into production systems by rapidly evaluating new models, prompting techniques, reasoning paradigms, and agent architectures.
  • Own the full experimentation lifecycle, from hypothesis generation to production rollout.
  • Design rigorous evaluation frameworks using offline benchmarks, online A/B experiments, golden datasets, regression suites, LLM-as-a-Judge, and human evaluation.
  • Run controlled experiments and ablation studies to understand the contribution of different models, prompts, retrieval strategies, reasoning techniques, memory systems, and agent architectures.
  • Continuously evaluate newly released frontier models and determine where they meaningfully improve quality, latency, reliability, or cost.
  • Develop confidence estimation, reflection, and continuous learning systems that improve agents over time using real-world feedback.
  • Measure success through business outcomes, not benchmark scores.
  • Build production-quality AI systems with a strong emphasis on reliability, observability, latency, safety, and cost.
  • Design agent guardrails, fallback strategies, tracing, monitoring, and evaluation pipelines that enable safe deployment in high-stakes environments.
  • Collaborate with infrastructure engineers to deploy AI systems securely within enterprise cloud environments.
  • Build human-in-the-loop workflows that effectively combine AI automation with expert oversight.
  • Partner directly with enterprise customers to understand their business, data, and operational challenges.
  • Translate ambiguous customer problems into production AI architectures.
  • Rapidly prototype new ideas, validate them with customers, and evolve successful solutions into scalable production systems.
  • Identify reusable patterns that become core capabilities across many enterprise deployments.

Qualifications

  • 5+ years of software engineering, machine learning, or applied AI experience.
  • Strong Python programming skills.
  • Experience building production AI systems using LLMs.
  • Experience with modern AI tooling, including OpenAI, Claude, MCP, agent frameworks, vector databases, or retrieval systems.
  • Strong understanding of machine learning fundamentals and modern language models.
  • Experience designing or evaluating AI systems using quantitative metrics.
  • Excellent communication skills and the ability to work directly with enterprise customers.

Skills

Required:PythonProduction AI SystemsLLMs and AI ToolingExperimentation & EvaluationCustomer Engagement

Benefits

  • comprehensive health, dental and vision coverage
  • retirement benefits
  • a learning and development stipend
  • generous PTO
  • potential commuter stipend
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Scale AI

Data-centric infrastructure to accelerate the development of AI

Scale accelerates the development of AI within organizations of any size to deliver critical business insights and operational efficiency. Its data-centric infrastructure platform leverages RLHF (Reinforced Learning with Human Feedback) to help organizations build the strongest AI models that supercharge their business, with customers across industries including Meta, Microsoft, U.S. Army, DoD’s Defense Innovation Unit, Open AI, General Motors, Toyota Research Institute, Brex, Instacart and Flexport.

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