AI Agent Engineering Lead

EY; Lansing (MI); Hybrid; USD 125,000 - 230,000; Full time

Job summary

EY seeks a Senior AI/ML engineer to design and build durable, verifiable AI agents for enterprise workflows. You will shape execution models, tools, and behavior while ensuring safety, governance, and observability across long-running processes.

You will operate in Challenger, EY’s program to explore new services, with up to 50% travel and a hybrid office presence in major US locations. This role emphasizes production-ready ML, distributed systems, and strong collaboration across product,

Qualifications

• Bachelor’s degree in a relevant field.
• 7–9 years of experience in software or applied ML engineering with ownership of production systems.
• Hands-on evidence of shipping large-language-model applications, agents, or complex model-driven workflows.
• Proficiency in Python, TypeScript, or another language used for production services and integrations.
• Experience with model APIs, structured outputs, retrieval, tool use, and evaluation of variable behavior.
• Distributed execution with asynchronous work, state, concurrency, idempotency, retries, and failure recovery.
• Experience implementing access boundaries and scoped authority for applications or automated workloads.
• Production learning: traces, metrics, logs, incident analysis, and durable remediation.
• Travel up to 50% and flexibility to work in a hybrid capacity.

Responsibilities

• Choose the right execution model.
• Build dependable tools.
• Engineer agent behavior.
• Create durable context.
• Bound agent authority.
• Evaluate complete trajectories.
• Operate long-running execution.
• Make behavior observable.
• Protect user control.
• Build shared capability.

Skills

Production engineering

Agent architecture

AI application depth

Evaluation discipline

Security and operability

Product judgment

Python

TypeScript

Distributed systems

Model APIs

Education

Bachelor’s Degree in a relevant field of study

Tools

Python

TypeScript

Job description

EY seeks a Senior AI/ML engineer to design and build durable, verifiable AI agents for enterprise workflows. You will shape execution models, tools, and behavior while ensuring safety, governance, and observability across long-running processes.

You will operate in Challenger, EY’s program to explore new services, with up to 50% travel and a hybrid office presence in major US locations. This role emphasizes production-ready ML, distributed systems, and strong collaboration across product,