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Software Development Engineer 3

WEX Inc.
Karnataka, IND
Full-time
Onsite
Discovered 1 months ago
Backend software developmentJavaC#Object-oriented designData structures and algorithmsREST APIs

Full Job Posting

Team and Role

WEX Mobility Engineering provides SaaS and API solutions for fleet management and mobility payments customers and partners.

The role is part of the North America Mobility team and focuses on backend services supporting fleet cards, spend controls, and merchant configurations.

The position is described as a seasoned software engineering role within a development organization spanning the United States, Brazil, and India.

Engineering Responsibilities

  • Design and maintain scalable, high-performance backend services and develop public REST and internal gRPC APIs.
  • Create system designs, lead technical decisions, and implement automated testing across unit, integration, end-to-end, concurrency, and performance levels.
  • Identify bottlenecks and technical debt and improve application scalability, stability, monitoring, healing, and deployment automation.
  • Collaborate on features with product managers, designers, and engineers and conduct code reviews while mentoring engineers.
  • Troubleshoot production issues, perform root cause analysis, maintain engineering documentation, and provide live-site support.
  • Lead cross-team projects as a single-threaded owner or technical lead and unblock other engineers.

Required Experience

  • Bachelor’s degree in Computer Science or Software Engineering.
  • 5–8 years of professional software engineering experience.
  • Strong data structures, algorithms, object-oriented design, and problem-solving skills.
  • Expertise designing internet-scale services with scalability, availability, security, and reliability principles.
  • Excellent communication skills and a collaborative, empathetic mindset.
  • Backend proficiency with Java or C#, Spring Boot, RESTful APIs, ODATA, and SQL.
  • Ability to use AI-enabled development tools such as Cursor AI, Kiro, or GitHub Copilot.

Preferred Qualifications

  • Master’s degree in computer science or software engineering.
  • 8 years of software engineering experience.
  • Event-driven architecture or Kafka experience and card payments experience.
  • Familiarity with Docker, Kubernetes, API security, PCI DSS, mobile development, or cloud-native architecture.
  • Experience building production AI solutions, agents, copilots, or distributed AI systems.

Mobility Products

WEX Mobility products issue WEX or cobranded credit cards to fleet companies and workers for use at fueling stations and selected merchants.

The products support fuel discounts and configurable controls for merchants, amounts, and transaction velocity.

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