WEX

Software Development Engineer 3

WEX
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2 months ago
Bengaluru, IndiaSenior

Responsibilities

  • Design, develop, and maintain robust, scalable, high-performance object-oriented backend services.
  • Develop public APIs using Java and internal gRPC APIs for inter-service and inter-system communication.
  • Lead system designs, design decisions, technology evaluations, and alignment with senior engineers.
  • Build and maintain unit, integration, end-to-end, concurrency, load, and performance tests.
  • Identify bottlenecks and technical debt and implement scalability, stability, and reliability improvements.
  • Automate testing, monitoring, healing, scaling, continuous integration, and continuous deployment.
  • Collaborate with product managers, designers, and engineers to define and implement features.
  • Conduct code reviews, mentor junior and mid-level engineers, and promote engineering best practices.
  • Troubleshoot complex production issues, author root cause analyses, and ensure lasting fixes.
  • Maintain design documents, run books, change management documents, and readiness plans.
  • Provide live-site support by monitoring production systems and resolving incidents.
  • Drive cross-team projects as a single-threaded owner or technical lead and unblock other engineers.

Requirements

  • Bachelor’s degree in Computer Science or Software Engineering.
  • 5–8 years of professional software engineering experience.
  • Strong understanding of data structures, algorithms, object-oriented design, and problem solving.
  • Expertise designing and developing internet-scale services with scalability, availability, security, and reliability considerations.
  • Proficiency in backend development with Java or C#, Spring Boot, RESTful APIs, ODATA, and SQL.
  • Strong written and verbal communication skills and a collaborative, empathetic mindset.
  • Ability to use AI-enabled development tools such as Cursor AI, Kiro, and GitHub Copilot.
  • Preferred: master’s degree in computer science or software engineering.
  • Preferred: experience with event-driven architecture and Kafka.
  • Preferred: experience with card payments, cloud-native architecture, Docker, and Kubernetes.
  • Preferred: familiarity with iOS or Android development.
  • Preferred: experience building and deploying AI solutions, production-grade AI agents or copilots, multi-agent systems, distributed AI architectures, and vector databases such as Pinecone, Weaviate, OpenSearch, or Milvus.
  • Preferred: knowledge of AI evaluation techniques, safety practices, responsible AI principles, API security, and PCI DSS compliance.

Tech Stack

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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