Skip to content
VarianceVariance

Agent Engineer

Build and deploy production-grade AI agents for high-stakes fraud, risk, compliance, and AML decisions at enterprise customers. Own the full agent lifecycle from scoping and tool engineering through evals, tuning, and platform impact. Requires strong LLM experience, software engineering fundamentals, and customer-facing skills.

About the job

What you'll do

  • Design and ship production-grade AI agents that make high-stakes decisions in customers' risk operations, including fraud investigations, KYB and KYC reviews, AML workflows, and marketplace integrity.
  • Own the agent development lifecycle end to end: scoping workflows with customers, engineering context and tools, building evals to measure decision quality, and tuning performance against production data.
  • Work directly with enterprise customers (risk, fraud, and compliance leaders) to understand their processes and encode their judgment into agents.
  • Shape the core platform, including the context engine, entity graph, and agentic review automation, turning customer-specific patterns into reusable primitives.

What you'll bring

  • Strong software engineering fundamentals and experience shipping end-to-end production systems.
  • Strong people and communication skills, including communicating complex technical concepts to non-technical stakeholders and executives.
  • Hands-on experience building with LLMs, including prompt and context engineering, tool use, RAG, and evals.
  • Strong problem-solving in ambiguous, fast-changing environments; ability to turn fuzzy customer workflows into working systems.
  • Comfort working directly with customers and translating business needs into technical decisions.
  • Excellent written and verbal communication with both technical and non-technical audiences.
  • Degree in Computer Science or a related field, or equivalent professional experience.

Even better

  • Experience building or deploying agentic systems in production.
  • Familiarity with eval frameworks and a rigorous approach to measuring agent quality.
  • Domain experience in fraud, risk, identity, compliance, trust and safety, or financial services.
  • Experience shipping into regulated environments, including security reviews, data residency requirements, and audits.

What success looks like

  • Agents built are accurate, reliable, and trusted in production.
  • Pilots convert based on performance on real customer data and edge cases.
  • Customer-specific solutions become reusable platform capabilities.
  • Enterprise buyers view Variance as a technical partner.

What we offer

  • Platinum-level medical, dental, and vision insurance.
  • Unlimited PTO, sick leave, and parental leave.
  • Up to $100 per month reimbursement for personal health and wellness expenses.
  • Free lunch and dinner.
  • 401(k) plan.
  • Meaningful equity in a fast-growing, Series A company.

Skills

LLMs, Prompt Engineering, Context Engineering, Tool Use, RAG, Evals, Agentic Systems, Python, Software Engineering, Production Systems

Thinking Machines Lab

Thinking Machines Lab

San Francisco, CA

Research Software Engineer, Post Training
$350k+/yrHybridML Engineering

Build and operate the engineering systems that support post-training research, including reinforcement learning infrastructure, sandboxed execution, data pipelines, and agent scaffolding. The role requires strong Python and systems engineering skills, project ownership, and a relevant bachelor’s degree or equivalent experience.

OpenAI

OpenAI

San Francisco, CA

Software Engineer, AI for Chip Design
$266k+/yrHybridML Engineering

Build research infrastructure and tooling that enables AI models to design silicon, including reinforcement learning environments, EDA integrations, evaluations, and experiment workflows. The role requires strong software engineering fundamentals and comfort working across research, tooling, and chip-design systems.

Rollstack

Rollstack

United States
AI Software Engineer
No salary listedRemote3+ YOEML Engineering

Build production AI capabilities for automated slide and document generation, working across LLM applications, data analysis, and content generation. The role requires 3+ years in machine learning and NLP, advanced Python, and experience with LLM frameworks and production systems.

ClickUp

ClickUp

United States

Machine Learning Engineer, Ranking & Retrieval
$200k+/yrRemote5+ YOEML Engineering

Build and operate large-scale ranking and retrieval systems that power search relevance, including hybrid lexical/vector search, embeddings, query understanding, and permission-aware retrieval. Requires a bachelor's degree and 5+ years of ML engineering experience in ranking or information retrieval.

PathAI

PathAI

Boston, MA
Machine Learning Engineer III
$131k+/yrOn-site5+ YOEML Engineering

Develop and deploy machine learning models for biomedical research and AI products, collaborating with scientific, engineering, and product teams. Requires an advanced quantitative degree, substantial ML experience, Python proficiency, and experience bringing models into production or research applications.