Senior Full-Stack Engineer - Payments Platform (Remote)

WEX, Inc.; San Francisco (CA); Remote; USD 122,000 - 146,000; Full time

Benefits offered by this job

Health insurance

Dental & vision insurance

401(k) retirement plan

Paid time off

Tuition reimbursement

Job summary

WEX, Inc. is seeking a Senior Software Engineer to join the Beyond Fuel and Expense Management initiative within WEX Mobility Engineering. The role centers on backend development and building core platform capabilities across web and mobile experiences.

You will own technical outcomes from design through production, collaborating with Product, Design, Security, and teams across the United States and India. A remote-centric role requires proximity to SF Bay Area or other listed locations.

Qualifications

• Bachelor's degree in CS/Software Eng or related field.
• 6–8 years of professional software engineering experience.
• Strong proficiency in Java and Spring Boot.
• Experience designing REST APIs and distributed systems.
• Experience with AWS and CI/CD pipelines.
• Knowledge of authentication, authorization, data protection, and secure API design.

Responsibilities

• Contribute to the architecture, design, and implementation of the platform.
• Build full-stack capabilities across web, mobile, and backend services.
• Translate product requirements into technical designs and milestones.
• Design reusable APIs for web, mobile, and partner experiences.
• Establish patterns for payment workflows, expense management, and reconciliation.

Skills

Java

Spring Boot

REST APIs

AWS

CI/CD

Distributed systems

Security

Mentoring

AI coding tools

Education

Bachelor's degree in CS/Software Eng

Master's degree (preferred)

Tools

OpenTelemetry

Grafana

Prometheus

GitHub Copilot

Job description

WEX, Inc. is seeking a Senior Software Engineer to join the Beyond Fuel and Expense Management initiative within WEX Mobility Engineering. The role centers on backend development and building core platform capabilities across web and mobile experiences.

You will own technical outcomes from design through production, collaborating with Product, Design, Security, and teams across the United States and India. A remote-centric role requires proximity to SF Bay Area or other listed locations.