Lead Software Engineer, Agentic Engineering
Listed on 2026-07-27
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Software Development
Backend Developer, AI Engineer (Applied/Software), Cloud Engineer - Software, Software Architect
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We are looking for a Lead Software Engineer to join our Agentic Engineering team. You will help build a platform where specialized AI agents compose across technical domains - knowledge and policy, change/ITSM, network security, cloud, and source code. Instead of an engineer manually stitching together answers from a half-dozen tools, agents coordinate with each other to do the work. This is a hands-on technical role that requires strong proficiency in Python and Type Script, a track record of shipping systems that run reliably in production, and the judgment to set the technical bar for the engineers around you.
As a Lead, you own the execution of a meaningful part of the platform - driving designs, mentoring engineers, and turning direction into working software.
- Lead the technical delivery of a workstream - own the design and implementation of production agents and the services they depend on, from prototype to production.
- Set and uphold engineering standards - agent patterns, tool integration, testing, code quality, and observability practices that hold the bar high on your part of the platform.
- Build the agent platform hands-on - implement the shared services and protocols (e.g., agent-to-agent messaging, tool servers) that let agents discover and compose with one another reliably.
- Stay deep in the code - you spend most of your time writing code, prototyping hard problems, and pairing with engineers on the toughest parts of the system.
- Help ensure agents behave - build the testing, evaluation, and observability that verify agents stay accurate, cost-efficient, and within guardrails over time.
- Mentor and review - guide engineers through design reviews and code reviews, and unblock them on hard technical problems.
- Break work into shippable increments - translate architectural direction into a plan you and the engineers around you can execute and be proud of.
This role asks you to build autonomous systems that reason - agents that make decisions, call tools, and message one another. You're implementing how agents get built - the shared patterns, base abstractions, and "paved road" that make new agents fast to build and safe to run. You're responsible for knowing agents are behaving - observability, evaluation, and continuous checks, not a one-time test.
You're working in non-deterministic systems - where correctness, cost, and safety all have to be designed in, not bolted on.
- 6+ years of software engineering experience with strong proficiency in Python and/or Type Script.
- A track record of leading technical delivery - mentoring engineers, setting standards, and shipping complex systems.
- Experience building agentic or multi-step automated systems - tool orchestration, LLM reasoning loops, or agent frameworks.
- The ability to establish reusable patterns and technical direction that other engineers adopt.
- Experience designing for non-deterministic behavior, edge cases, and failure - and building the testing and observability to catch them.
- Experience building LLM safety, evaluation, or governance systems.
- Retrieval / hybrid search over enterprise knowledge.
- Background in platform engineering or developer tooling at enterprise scale.
- Experience with AWS, GCP, or Azure Terraform and infrastructure-as-code experience.
- Open-source contributions on public Git Hub.
Hybrid work.
Candidates must be located in the Farmington Hills / Metro Detroit, Michigan area. No remote candidates.
Position not available for immigration sponsorship.
Lead Software Engineer, Agentic EngineeringAt Fifth Third, we understand the importance of recognizing our employees for the role they play in improving the lives of our customers, communities and each other.
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