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AI Principal Engineer

Job in Portland, Cumberland County, Maine, 04122, USA
Listing for: WEX
Full Time position
Listed on 2026-06-13
Job specializations:
  • Engineering
    AI Engineer (Applied/Software)
  • IT/Tech
    AI Engineer (Applied/Software)
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below

Overview

Position Summary

As a Principal AI/ML engineer, this technical leader will be responsible for the design and implementation of the cloud-native AI/ML engineering platform (supporting both GenAI and traditional AI/ML technology and applications). This technologist will drive the technology development and architecture in these areas to ensure the platforms, systems, tools, models, and services generated from this team are technically sound with strong security, quality, reliability, usability, scalability, performance, efficiency, and operability to serve the fast growing needs of Wex and customers.

It’s important to balance the near term and long term needs. To do these, you will be closely partnering with other leaders and teams in the Tech org, Digital org, and other orgs in the company including Data & Analytics, Risk & Compliance, the Line of Business (LOB) 3 legs (commercial, digital, and technology), Security, central architecture & PaaS team, Global Tech Services, Finance, Marketing, and customer service orgs to understand their business and needs for Data Lake technologies, platforms, services, and guide our design, development, and productionalization accordingly.

This is a fantastic opportunity for a highly motivated and passionate AI/ML engineer to apply deep expertise and rich experience in AI Engineering to develop technology, platforms and services, and apply them to multiple lines of business with a big customer base to generate real business impact in a fast growing commerce platform and payment tech company during its technology transformation stage to meet high customer demands.

At the same time, you will learn and grow your career by solving large scale and complex problems.

This Principal AI/ML Engineer will have technical ownership of WEX’s AI Engineering implementation, including but not limited to architecture, technical direction, engineering best practice, and quality/compliance. This also includes proper and effective architectural integration with other platforms, products, and services across the company. This leader will work closely with team members of the Data Lakehouse Engineering teams.

The vision behind Wex’s AI/ML engineering is to create a unified, scalable, and intelligent data and compute infrastructure that empowers our organization to unlock the full potential of our data.

We are looking for a highly motivated, technically deep, and experienced Software Engineer to join the org and design, architect the AI/ML engineering applications and frameworks for Wex.

This Principal AI/ML Engineer will report to the Vice President of Data Lake and AI Engineering located in the San Francisco Bay Area. This role can also be in Chicago, Portland, Maine (Wex HQ), or Boston. The ideal candidate will be a hands-on leader with deep technical expertise in building and scaling data lake environments, coupled with strong people leadership and communication skills to drive alignment across the organization.

Responsibilities
  • Lead and drive the development of technology and platform for the company's AI/ML engineering needs, ensure the functional richness, reliability, performance, and flexibility of this platform
  • Help design the architecture and lead the implementation of the AI/ML infrastructure, platform and services
  • Challenge the status quo and hold a high bar to drive for better and better technical solutions to effectively serve all the needs in the broad risk area of Wex
  • Guide your team to leverage data and/or AI technology or tools in your design and development for high productivity and better solution quality. Show strong thought leadership and influence your peers in this area
  • Closely partner with the other senior engineers across the organizations at Wex to deeply understand the business needs and jointly come up with technical solutions to serve these needs effectively. Demonstrate strong thought leadership and partnership
  • Partner closely with information security teams to ensure the security and privacy of data, implementing encryption and access controls as required
  • Partner with solutions architecture and LOB product and engineering orgs on integrations of the…
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