WEX

Staff Software Engineer

WEX
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4 days ago
Remote, United States or Portland, ME, USAStaff+
H1B sponsor

Base Salary

$141k - $173k/yr

Responsibilities

  • Lead the technical architecture, design, and implementation of the Beyond Fuel and Expense Management platform.
  • Build full-stack functionality across user interfaces, backend services, data models, APIs, and external integrations.
  • Design reusable payment, expense, approval, spend-control, reporting, and reconciliation capabilities.
  • Write production code, review contributions, resolve complex issues, and guide engineers through design reviews and mentoring.
  • Establish standards for testing, API contracts, observability, accessibility, and secure development.
  • Build production readiness through logging, distributed tracing, metrics, dashboards, alerts, and incident troubleshooting.
  • Own technical outcomes from initial implementation through deployment, operation, and continuous improvement.
  • Partner with Product, Design, Security, and engineering leaders to manage dependencies, technical risks, and delivery.

Requirements

  • Bachelor's degree in Computer Science, Software Engineering, or a related field.
  • 8–10 years of professional software engineering experience.
  • Experience taking a new product from concept to production and evolving it as adoption grows.
  • Strong proficiency in Java and Spring Boot or comparable backend technologies.
  • Strong knowledge of object-oriented design, data structures, algorithms, and software design principles.
  • Experience with REST APIs, distributed systems, relational data models, event-driven integrations, cloud platforms, and automated delivery pipelines.
  • Knowledge of authentication, authorization, data protection, and secure API design.
  • Experience with unit, integration, end-to-end, and performance testing.
  • Experience operating production services with monitoring, distributed tracing, and incident troubleshooting.
  • Ability to influence technical direction without formal management authority and communicate decisions clearly to technical and business stakeholders.
  • Track record of mentoring engineers and improving engineering practices through hands-on collaboration.
  • Hands-on experience using AI coding assistants and development tools such as GitHub Copilot, Cursor, or Claude.
  • Preferred qualifications include a master's degree, 10+ years of experience, API gateways, service mesh technologies, cloud networking, OpenTelemetry, Grafana, Prometheus, or web and mobile application development experience.

Benefits

  • Remote position, with residence required within 30 miles of Boston, San Francisco Bay Area, Dallas, Salt Lake City, Seattle, or Portland, Maine.
  • Benefits include health, dental, and vision insurance; retirement savings; paid time off; health savings and flexible spending accounts; life and disability insurance; tuition reimbursement; and other benefits.
  • Non-sales roles are typically eligible for a quarterly or annual bonus under the applicable plan.

Tech Stack

AWSGrafanaJavaPrometheusSpring Boot
WEX

About WEX

5,001-10,000 employees

WEX is a public financial technology company that provides corporate payment solutions to fleets, healthcare/benefits administrators, and travel businesses. Its products include fuel and mobility cards, virtual card payments, and platforms for HSAs/FSAs/HRAs, with revenue from payment processing and software/service fees. Founded in 1983 and headquartered in Portland, Maine, WEX trades on the NYSE under WEX and was formerly known as Wright Express.

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