Senior AI Product Builder: Agent-Driven Innovation

WEX, Inc.; South Portland (ME); On-site; USD 125,000 - 154,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

401(k) plan

Paid time off

HSA/FSA

Life Insurance

Disability Insurance

Tuition reimbursement

Job summary

WEX, Inc. is seeking a Senior AI Product Manager Builder to join a forward-deployed Builder Pod, partnering with an AI Tech Builder and domain experts to turn manual, judgment-heavy workflows into governed, agent-assisted experiences.

You will own the problem, user outcomes, value case, agent behavior, and evaluation strategy, while your Tech Builder handles production engineering and scalability. This is hands-on, not a document-only PM role.

Qualifications

• 7+ years of Product Management experience shipping software, data, platform, automation, or AI products to production at scale.
• Applied AI Expertise: Direct experience with generative AI, LLMs, retrieval/grounding (RAG), tool calling, context management, orchestration, structured outputs, and human-in-the-loop workflows.
• Evaluation Discipline: Proven experience building or running AI evaluations using golden datasets, quality rubrics, failure analysis, or model-based judges.
• Prototyping & Technical Literacy: Demonstrated ability to use AI-assisted dev tools, low-code frameworks, APIs, and version-controlled configuration files (Markdown, JSON, YAML) to bring concepts to life.
• Systems & Tradeoff Thinking: Skill in balancing accuracy, autonomy, latency, token/system cost, security, and user experience.
• Communication & Collaboration: Track record of driving alignment across cross-functional partners (Engineers, Risk, Legal, Operations) and making complex AI tradeoffs clear to executive audiences.
• Education: Bachelor's degree in a related field or equivalent practical experience.

Responsibilities

• Embed directly with operators, customers, and domain experts across Mobility, Payments, and Benefits to map current-state workflows, friction, and failure demand.
• Define future-state experiences, set baseline performance metrics, and test feasibility and trust with small high-value slices.
• Rapidly build and test agent behavior, system context, prompts, tool flows, retrieval/grounding, and multi-agent or human-in-the-loop orchestrations with the AI platform.
• Define evaluation criteria and scoring rubrics to drive product decisions through evidence.
• Translate learnings into versioned repository artifacts (PRDs, acceptance criteria, decision logic, eval harnesses).
• Navigate enterprise legacy systems and complex policies to show working software in real environments.

Skills

Product Management

Applied AI

AI Evaluations

Prototyping & Technical Literacy

Systems & Tradeoff Thinking

Communication & Collaboration

Education

Bachelor's degree or equivalent practical experience

Tools

Markdown/JSON/YAML configurations

Job description

WEX, Inc. is seeking a Senior AI Product Manager Builder to join a forward-deployed Builder Pod, partnering with an AI Tech Builder and domain experts to turn manual, judgment-heavy workflows into governed, agent-assisted experiences.

You will own the problem, user outcomes, value case, agent behavior, and evaluation strategy, while your Tech Builder handles production engineering and scalability. This is hands-on, not a document-only PM role.