WEX

Software Development Engineer 3

WEX
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1 day ago
Bengaluru, IndiaSenior

Responsibilities

  • Lead the design and implementation of complex backend features, distributed microservices, and asynchronous REST APIs.
  • Design event-driven data pipelines, real-time message integrations, serverless functions, and distributed caching strategies.
  • Implement retry patterns, circuit breakers, database migrations, and OAuth 2.0, JWT, and RBAC-based authentication and authorization.
  • Manage cloud infrastructure using Infrastructure as Code, optimize containerized environments, and establish distributed tracing, metrics, and logging.
  • Maintain automated unit, integration, and load-test coverage and drive performance profiling.
  • Mentor engineers through code reviews, pair programming, technical guidance, and technical initiative leadership.

Requirements

  • 6+ years of professional software development experience, including 3+ years with high-level backend languages and 2+ years scaling production distributed systems.
  • Strong experience with Python, Go, or Java, asynchronous programming, relational databases, query optimization, partitioning, and distributed key-value caches.
  • Deep knowledge of microservices communication, event streaming and message brokers, containerization, and CQRS/event-sourcing concepts.
  • Hands-on experience with serverless compute, managed storage, IAM, Infrastructure as Code tools, ORMs, and secure API design.
  • Demonstrated ability to deliver mission-critical services, take ownership of technical initiatives, and lead alignment discussions.
  • Preferred experience includes cloud-to-legacy database integration, financial services, logistics, fleet management, dynamic pricing, CI/CD optimization, high availability, disaster recovery, Prometheus/Grafana dashboards, and performance profiling tools.

Tech Stack

GoGrafanaJavaPrometheusPython

Categories

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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