Software Development Engineer 3

About the team / Role We are looking for a skilled and passionate Full Stack Software Engineer to join the WEX Mobility Engineering team. In this role, you will design and build scalable APIs, backend services, and data pipelines that power our next-generation fleet and payments platforms. You’ll work on Moving Legacy Financial systems (ERP) to Microservice based Hybrid system and operational insights — all while modernizing legacy workflows into cloud-ready architectures. You’ll collaborate with a cross-functional team to develop secure, maintainable software in a DevOps environment, utilizing modern event-driven and microservices architectures. This role offers an opportunity to influence and implement technical strategy while working alongside experts in APIs, Kafka, Python, and cloud technologies.

How you’ll make an impact Design, develop, test, and maintain robust full-stack solutions with an emphasis on APIs, microservices, Kafka and backend systems.

Work with streaming data, including real-time event processing using Kafka or similar technologies.

Build automation for Change Data Capture (CDC) and data synchronization pipelines using JSON-based services.

Participate in agile ceremonies and own the full software development lifecycle (SDLC).

Collaborate closely with product managers, designers, and other engineers to deliver high-quality software.

Provide mentorship and technical guidance to junior developers.

Troubleshoot and resolve critical production issues as needed.

Experience you’ll bring BS in computer science or related fields 

6 years+ hands-on experience developing applications/microservices with Java/Python/Kafka.

3 years+ hands-on experience with REST API development.

Strong written and verbal communication skills.

Proficiency in backend languages such as Python, Java, or Node.js.

Experience designing and building RESTful APIs.

Hands-on experience with Apache Kafka or similar event streaming platforms, SMS and Dead letter Queues.

Strong knowledge of Change Data Capture (CDC) strategies and implementation.

Familiarity with JSON, XML, and other data interchange formats.

Solid understanding of relational and/or NoSQL databases (e.g., PostgreSQL, Oracle, Snowflake).

Experience working in Unix/Linux environments and scripting (e.g., shell, Python).

Working knowledge of CI/CD pipelines and source control tools (e.g., Git).

Nice to Have (Bonus Qualifications) Exposure to Financial Platforms like (PeopleSoft, EBS,SAP) - including APIs and integration workflows.

Experience with cloud platforms (AWS preferred).

Familiarity with Peoplesoft Tools and Web Services.

Experience with containerization (Docker, Kubernetes) and cloud-native services.

Experience with large-scale transaction or payments systems.

Familiarity with modern front-end frameworks (React, Angular, Vue.js).

Knowledge of tools like JIRA, Confluence, and design documentation best practices.

What Makes You a Great Fit Strong sense of ownership, with a passion for solving complex engineering challenges.

Excellent communication and collaboration skills across teams and time zones.

Ability to break down large initiatives into shippable, iterative technical deliverables.

Eagerness to work in a fast-paced, evolving tech environment.

A focus on building maintainable, scalable, and secure software.