Senior AI Product Builder — Prototyping, Evaluation & Governance

WEX, Inc.; Washington (District of Columbia); On-site; USD 125,000 - 154,000; Full time

Benefits offered by this job

Health, dental and vision insurance

Retirement savings plan

Paid time off

Health savings account

Flexible spending accounts

Life insurance

Disability insurance

Tuition reimbursement

More benefits

Job summary

WEX, Inc. is seeking a Senior AI Product Manager Builder to join a forward-deployed Builder Pod. You will partner with a Tech Builder and domain experts to transform manual workflows into governed, agent-assisted experiences at scale.

This hands-on role requires prototyping, evaluating AI systems, and delivering measurable business outcomes while balancing risk, cost, and user experience in enterprise environments.

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, with a clear understanding of when to use probabilistic AI versus deterministic code.
• 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

• Own the problem, user outcome, and business value case for AI products.
• Prototype agent behavior, prompts, tool flows, and evaluation scenarios with collaborators.
• Define evaluation criteria and measure success by outcomes.
• Navigate enterprise systems and policies to deploy in real environments.
• Collaborate with Engineers, Risk, Legal, and Operations to balance tradeoffs.

Skills

Applied AI Expertise

Evaluation Discipline

Prototyping & Technical Literacy

Systems & Tradeoff Thinking

Communication & Collaboration

Bachelor's degree

Education

Bachelor's degree in a related field or equivalent practical experience

Tools

Markdown

JSON

YAML

APIs

Job description

WEX, Inc. is seeking a Senior AI Product Manager Builder to join a forward-deployed Builder Pod. You will partner with a Tech Builder and domain experts to transform manual workflows into governed, agent-assisted experiences at scale.

This hands-on role requires prototyping, evaluating AI systems, and delivering measurable business outcomes while balancing risk, cost, and user experience in enterprise environments.