Demo

Principal Software Engineer, Benefits Engineering

WEX, Inc.
San Francisco, CA Full Time
POSTED ON 12/28/2025
AVAILABLE BEFORE 1/28/2026

WEX is an innovative global commerce platform and payments technology company looking to forge the way in a rapidly changing environment, to simplify the business of doing business for customers, freeing them to spend more time, with less worry, on the things they love and care about. We are journeying to build a consistent world-class user experience across our products and services and leverage customer-focused innovations across all our strategic initiatives, including big data, AI, and Risk.

At WEX, we simplify the business of running a business. Our WEX Benefits solutions reduce complexity and help manage costs of benefits administration for our clients and partners. We are looking for passionate technologists, collaborators, and problem solvers to join our Benefits Technology team as we build the next generation of employer benefits solutions and services. As a Software Engineer on the WEX Benefits Technology team, you will work in a team that partners closely with Product Managers and customers to learn about the challenges employers face while navigating the competitive employee benefits landscape. You will design solutions that solve problems in ways our customers love and work for our business. You will build the highest quality software in the latest technologies and test driven development practices.

How you'll make an impact

Team Collaboration

  • Support live applications, promote proactive monitoring, rapid incident response, and continuous improvement.

  • Collaborate with stakeholders to learn about our customers' biggest challenges.

  • Mentor and learn from peers, fostering continuous learning within the team and organization.

Software Design and Architecture

  • Design solutions that solve problems in ways our customers love and work for our business.

  • Design, test, code, and instrument new solutions.

  • Strengthen and drive engineering process with TDD and BDD, Microservice and Vertical Slice Architectures.

  • Analyze existing systems and processes to identify bottlenecks and opportunities for improvements.

Project Implementation

  • Measure, inspect, and drive decisions using data.

  • Deliver complex projects on schedule.

  • Provide strategic thought leadership on business initiatives using deep technical and business industry expertise.

  • Advise Senior Leadership team on highly complex situations that impact the organization and lead teams through the initiative, driving excellent quality results and achieving defined OKRs across the organization.

Product Proficiency

  • Understand and address the challenges employers face while navigating the competitive employee benefits landscape.

  • Build the highest quality software in the latest technologies and test-driven development practices.

Leadership

  • Advise Senior Leadership team on highly complex situations that impact our organization and then lead teams through the initiative, driving excellent quality results and achieving defined OKRs across the organization.

  • Mentor and learn from your peers, foster continuous learning within your team and organization.

Experience you'll bring

  • Bachelor's degree in Computer Science, Software Engineering, or related field; OR demonstrable equivalent experience.

  • A minimum of 15 years of experience in software engineering.

  • Strong problem-solving and analytical skills.

  • Excellent communication and collaboration skills.

  • Passionate about keeping up with modern technologies and design.

  • Strong proficiency in Angular and/or React.

  • Experience building and consuming REST APIs.

  • Proven track record of writing comprehensive unit tests and test suites.

  • Strong understanding of software security principles and OWASP guidelines.

  • Proficiency with Git version control and CI/CD pipelines.

  • Experience with Agile development methodologies.

  • Track record of delivering complex projects on schedule.

  • Experience in writing performant stored procedures and functions.

Technology Must-Haves:

  • C#

  • Python (if applicable)

  • Docker

  • Modern RDBMS (i.e., MS SQL, Postgres, MySQL)

  • ASP.NET RESTful API design

  • Kafka/event-driven design

  • Modern Web UI Frameworks and Libraries (i.e., Angular, React)

  • Kubernetes

  • NoSQL databases

  • Helm/ArgoCD

  • Terraform

  • GitHub Actions

  • GraphQL

  • Experience in developing Cloud-Native applications and services

Technology Nice-To-Have or Dedicate to Learning Quickly:

  • Generative AI and Agentic AI models and frameworks

  • Azure

The base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the "About Us" section.

Pay Range: $195,000.00 - $260,000.00
Equal Opportunity Employer/Vets/Disability

 

Salary : $195,000 - $260,000

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