Staff SWE: Beyond Fuel & Expense (Remote)

WEX

Maine

Remote

USD 141,000 - 173,000

Full time

8 days ago

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Job summary

WEX is hiring a Full-stack Staff Software Engineer to provide technical leadership for the Beyond Fuel and Expense Management initiative within WEX Mobility Engineering. This role is remote but requires residency within 30 miles of major US locations and will influence architecture, engineering practices, and product delivery from design to production.

You will work across web and mobile apps, backend services, APIs, and partner integrations to deliver secure, reliable, and scalable payment and

Qualifications

Bachelor's degree in Computer Science, Software Engineering, or related field.
8–10 years of professional software engineering experience.
Experience taking a new product from concept to production.
Strong proficiency in Java and Spring Boot.
Understanding of OO design, data structures, algorithms, and software design principles.
Experience designing REST APIs, distributed systems, with relational data models and event-driven integrations.
Experience with cloud platforms (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 and incident troubleshooting.
Ability to influence technical direction without formal management authority.
Experience mentoring engineers and improving engineering practices.
Hands-on experience using AI coding assistants (GitHub Copilot, Cursor, Claude).

Responsibilities

Lead the technical architecture, design, and implementation of the Beyond Fuel and Expense Management platform.
Build full-stack capabilities spanning UI, backend services, data models, and external integrations.
Translate product requirements into technical designs, milestones and plans.
Design reusable business capabilities and APIs for web, mobile, and partner experiences.
Establish patterns for payment workflows, expense capture, approvals, spend controls, reporting and reconciliation.
Evaluatetechnical options and communicate tradeoffs on performance, security, reliability and cost.
Write production code, review contributions, and resolve complex issues.
Guide engineers through design reviews, mentoring, and problem-solving.
Establish standards for automated testing, API contracts, observability, accessibility, and secure development.
Build production readiness with logs, tracing, metrics, dashboards, and alerts.
Use approved AI tools throughout development and review outputs.
Partner with engineering leaders to identify dependencies and manage risks.
Own technical outcomes from implementation through deployment, operation, and improvement.