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About the Role
Seeking a Full-stack Senior Software Engineer with deep expertise in backend development to contribute to the WEX Beyond Fuel and Expense Management initiative. This role involves shaping architecture, establishing engineering practices, and building the product from design to launch, working across web & mobile applications, backend services, APIs, and partner integrations.
Responsibilities
- Contribute to the technical architecture, design, and implementation of the Beyond Fuel and Expense Management platform.
- Build full-stack capabilities spanning user interfaces, backend services, data models, and external integrations.
- Translate product requirements into technical designs, delivery milestones, and implementation plans.
- Design reusable business capabilities and APIs that support web, mobile, and partner experiences.
- Establish patterns for payment workflows, expense capture, approvals, spend controls, transaction reporting, and reconciliation.
- Evaluate technical options and communicate tradeoffs involving performance, security, reliability, cost, and delivery timelines.
- Write production code, review contributions, and resolve complex issues across the application stack.
- Participate in design reviews, code reviews, and technical discussions to support engineering quality.
- Establish standards for automated testing, API contracts, observability, accessibility, and secure development.
- Build production readiness into the product through actionable logs, distributed tracing, metrics, dashboards, and alerts.
- Use approved AI tools throughout development, testing, and documentation, and review and validate all generated output.
- Partner with engineering leaders to identify dependencies, manage technical risks, and support delivery.
- Own technical outcomes from initial implementation through deployment, operation, and continuous improvement.
Requirements
- Bachelor's degree in Computer Science, Software Engineering, or a related field.
- 6–8 years of professional software engineering experience.
- Strong proficiency in Java and Spring Boot, or comparable backend technologies.
- Strong understanding of object-oriented design, data structures, algorithms, and software design principles.
- Experience designing REST APIs, distributed systems, relational data models, and event-driven integrations.
- Experience with cloud platforms, preferably AWS, and automated CI/CD pipelines.
- Knowledge of authentication, authorization, data protection, and secure API design.
- Experience with unit, integration, end-to-end, and performance testing.
- Experience building and operating production services with monitoring, distributed tracing, and incident troubleshooting.
- Strong communication skills to collaborate effectively across multidisciplinary teams.
- Ability to explain technical decisions clearly to engineering and business stakeholders.
- A track record of mentoring engineers and improving engineering practices through hands-on collaboration.
- Hands-on experience leveraging AI coding assistants and development tools (e.g., GitHub Copilot, Cursor, Claude) to accelerate software development, refactoring, and code generation.
- Master's degree in Computer Science or Software Engineering.
- 8+ years of software engineering experience.
- Experience with API Gateways, service mesh technologies, and cloud networking concepts.
- Familiarity with OpenTelemetry, Grafana, Prometheus, or similar observability platforms.
- Exposure to web and mobile application development.
Skills
- Java
- Spring Boot
- REST APIs
- Distributed systems
- Relational data models
- Event-driven integrations
- AWS
- CI/CD pipelines
- Authentication
- Authorization
- Data protection
- Secure API design
- Unit testing
- Integration testing
- End-to-end testing
- Performance testing
- Monitoring
- Distributed tracing
- Incident troubleshooting
- AI coding assistants
- GitHub Copilot
- Cursor
- Claude
- API Gateways
- Service mesh technologies
- Cloud networking
- OpenTelemetry
- Grafana
- Prometheus
- Web application development
- Mobile application development
Location
- Remote
Work Type
- Remote
Experience Level
- Senior
- 6-8 years
- 8+ years
Education Level
- Bachelor's degree in Computer Science, Software Engineering, or a related field
- Master's degree in Computer Science or Software Engineering
Salary/Compensations
- $121,500.00 - $145,500.00
Benefits
- Health insurance
- Dental insurance
- Vision insurance
- Retirement savings plan
- Paid time off
- Health savings account
- Flexible spending accounts
- Life insurance
- Disability insurance
- Tuition reimbursement
About the Company
- WEX Mobility Engineering is working on the Beyond Fuel and Expense Management initiative.
- WEX offers comprehensive and market-competitive benefits designed to support personal and professional well-being.