WEX

Senior Software Engineer

Brazil Sao Paulo, Brazil · Remote (region restricted) · Full time

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About the role

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EmployerWEX
LocationBrazil Sao Paulo, Brazil
Work styleRemote (region restricted)
Employment typeFull time
Employer posted8 Oct 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:

Show full description

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.
Highly self-motivated, take ownership of your work, actively seek out ways to contribute, and require minimal supervision.

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

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