Software Development Engineer 2-4

About the Team / Role

This role is critical in building the technology that powers mobility payment systems used by fleets across Europe and Asia Pacific. As a Software Development Engineer 2 (SDE2) in WEX’s International Mobility Engineering organization, you will contribute to designing and developing scalable backend systems, support production services, and work on feature enhancements used by global customers across EU and APAC.

How you’ll make an impact

Build and maintain scalable Java-based microservices and public APIs.

Collaborate with senior engineers and architects on solution design.

Write automated tests (unit, integration, and end-to-end).

Contribute to CI / CD automation and deployment pipelines.

Debug and troubleshoot production issues and improve system reliability.

Work with cross-functional partners including product managers, QA, and designers.

Document designs, workflows, and technical processes.

Experience you’ll bring

3–5 years of professional software development experience.

Strong programming skills in Java (or C#), Spring Boot, and RESTful APIs.

Experience with relational databases (PostgreSQL or similar).

Familiarity with cloud-native deployment (AWS), containerization (Docker), and orchestration (Kubernetes).

Understanding of Agile development practices.

Ability to work independently on moderately complex features.

Tech Stack

Java

• Spring Boot
• REST APIs
• Kafka
• PostgreSQL
• Docker
• Kubernetes
• AWS
• gRPC
• CI / CD
• Git
• Prometheus
• Grafana