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Staff Software Engineer, Agents

Harvey· Engineering
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Hybrid (New York)$231k - $340kFull-timePosted 2mo ago

About the role

Role focused on building AI agents for legal professionals, designing agent environments and actions, managing context, tooling, and evals to enable rapid iteration and high-quality task completion.

Responsibilities

  • Partner with customers and PMs to understand legal workflows, design practical evaluations, and ship agents that get the job done.
  • Optimize agent performance through prompt engineering, model selection, tool design, skill writing, context window management, and eval harness development.
  • Work with our model infra team to design and implement infrastructure for low-latency agent execution, including caching strategies, parallel tool calls, or subagent patterns.
  • Improve our observability and instrumentation to profile agent behavior, identify bottlenecks, and drive optimization decisions.
  • Stay current on new developments in agentic systems and bring those learnings back to the products we build.

Qualifications

  • 10+ years (post-BS/MS) of software engineering experience.
  • Proficiency in Python and experience working with LLM APIs and agent frameworks.
  • Experience with shipping user-facing products, either on the backend or full-stack.
  • Passion for building effective domain-specific agents.
  • Iterative mindset: develop proofs of concept, make decisions quickly, and ship v0s.
  • Comfortable with evaluations to drive quality.
  • Humble and adaptable about code and frameworks; drive adoption of new best practices.
  • We are hiring for Mid, Senior, and Staff levels.

Skills

Required:PythonLLM APIsAgent frameworksShipping user-facing productsEvaluations for quality

Benefits

  • Comprehensive health, dental and vision coverage
  • retirement benefits (401k match up to 4%)
  • flexible PTO
  • equity plan eligibility
  • bonuses eligibility
Last updated Oct 22, 2026. Interested? Apply on the company site.
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About Harvey

Professional Class AI

Harvey is a platform built to meet the standards of the world’s leading professional service firms.

AILegalLegal AILegal AnalysisLegal Document AnalysisLegal ResearchLegal Techsetter-30
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