WEX · 15 hours ago
Staff Software Engineer
Dallas, TX
Full-time
Hybrid
Senior Level, Lead/Staff
$135K/yr - $180K/yr
10+ years expWEX is a company focused on delivering innovative solutions in the financial technology sector. They are seeking a Staff Software Engineer to lead the design, architecture, and implementation of their Digital Credit Application platform, ensuring stability and performance while managing complex technical challenges.
Financial ServicesFinTechPaymentsSoftware
Responsibilities
Lead the design, architecture, and implementation of highly available and resilient microservices using Java and the Spring ecosystem
Drive technical roadmaps, project plans, and architectural decisions, balancing rapid delivery with long-term platform stability
Be responsible for critical non-functional requirements, including system performance, observability, security, and scalability under high load
Define and advocate for engineering best practices, including code quality standards, comprehensive testing strategies, and efficient code review processes
Partner closely with product management and front-end teams to design clean, effective, and robust APIs (REST/gRPC)
Advise senior leadership on complex technical trade-offs and lead technical initiatives across organizational boundaries, driving consensus and adoption
Provide technical mentorship and guidance to mid-level and senior engineers, fostering a culture of high engineering standards
Qualification
Required
Must reside within 30 miles of one of the following locations: Portland, ME; Boston, MA; Chicago, IL; Dallas, TX; San Francisco Bay Area, CA; and Seattle/WA
10+ years of progressive software design and development experience at scale, with significant experience in a technical leadership or staff-level role
Deep expertise in Java and the Spring ecosystem (Spring Boot, Spring Data)
Proven experience designing and operating distributed systems and microservices architectures in a cloud environment (AWS, Azure, or GCP)
Mandatory experience with high-volume data modeling, transactional integrity, and database technologies (both relational like PostgreSQL and NoSQL like Cassandra/MongoDB)
Strong practical experience with event-driven architectures and messaging systems (e.g., Kafka or RabbitMQ)
Experience working with Service Mesh technologies like Istio for traffic management, security (mTLS), and resiliency patterns
Demonstrated commitment to engineering quality, including deep experience with Test-Driven Development (TDD) and designing robust regression testing strategies
Expert knowledge of CI/CD pipelines, deployment automation, and modern observability tools (e.g., Prometheus, Grafana, Jaeger)
Excellent analytical skills and capability in identifying and resolving complex, cross-functional problems
Strong written and verbal communication skills, able to present complex technical concepts clearly
Bachelor's degree in Computer Science or a related field
Benefits
Health, dental and vision insurances
Retirement savings plan
Paid time off
Health savings account
Flexible spending accounts
Life insurance
Disability insurance
Tuition reimbursement
Company
WEX
Wex is a financial technology service provider for fleet, travel and healthcare industries.
5001-10000 employees
H1B Sponsorship
WEX has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (22)
2024 (10)
2023 (12)
2022 (20)
2021 (14)
2020 (18)
Funding
Current Stage
Public CompanyTotal Funding
$900MKey Investors
Warburg Pincus
2025-02-25Post Ipo Debt· $500M
2020-06-30Post Ipo Equity· $90M
2020-06-30Post Ipo Debt· $310M
Leadership Team
Melissa Smith
Chair and Chief Executive Officer
Sachin Dhawan
Chief Technology Officer
Recent News
2026-01-03
2025-12-05
2025-12-02
Company data provided by crunchbase