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Senior Software Development Engineer

WEX, Inc.
South Portland, ME Full Time
POSTED ON 4/8/2026
AVAILABLE BEFORE 6/8/2026

Software Engineer III, Benefits Engineering

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.

Responsibilities:

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

  • Measure, inspect, and drive decisions using data.

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

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

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

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

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

  • Become a subject matter expert in your functional area and best practices.

  • Assess unique circumstances and apply creative problem-solving techniques to resolve issues or suggest various approaches.

  • Independently complete work and proactively review with others.

Required Qualifications:

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

  • At least 5 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

  • Excellent communication and collaboration abilities

  • Track record of delivering complex projects on schedule

  • Experience in writing performant stored procedures and functions

  • Experience in developing Cloud-Native applications and services

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)

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

  • Kubernetes

  • Helm/ArgoCD

  • Terraform

  • GitHub Actions

  • NoSQL databases

  • GraphQL

  • 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: $121,500.00 - $145,500.00
Equal Opportunity Employer/Vets/Disability

 

Salary : $121,500 - $145,500

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