WEX

Software Development Engineer 4

WEX
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2 months ago
Bengaluru, IndiaStaff+

Responsibilities

  • Define and evolve architecture across multiple Mobility services and resolve cross-team bottlenecks.
  • Lead architecture reviews and technical workshops with engineering, product, security, compliance, operations, and partner teams.
  • Establish reference architectures, reusable libraries, golden paths, API standards, service contracts, integration patterns, and cloud infrastructure patterns.
  • Design secure, scalable, highly available, resilient internet-scale systems for fleet management and mobility payments.
  • Drive security-by-design, compliance-by-design, threat modeling, API security, authorization, PCI DSS considerations, data protection, and auditability.
  • Define observability, SLI/SLO, operational-readiness, incident-management, chaos-testing, and resilience-improvement practices.
  • Create reusable CI/CD and infrastructure-as-code patterns using Helm, Argo workflows, Terraform, and secure cloud-resource templates.
  • Set expectations for code quality, testing strategy, maintainability, and production behavior across teams.
  • Code selectively in foundational or technically challenging components and validate architecture through prototypes and technical spikes.
  • Debug complex cross-service issues, lead technical resolution during major incidents, and drive corrective actions and reliability improvements.
  • Build self-service tools, dashboards, and automation for engineers, support teams, and operational partners.
  • Shape cross-team roadmaps, identify dependencies and architectural risks, and reduce technical debt.
  • Mentor senior engineers, support engineer growth and visibility, and promote thoughtful technical decision-making.
  • Evaluate emerging technologies and guide safe adoption paths, including responsible AI solutions and multi-agent workflows.
  • Maintain architecture decisions, design documents, runbooks, corrective-action documents, change-management plans, and operational-readiness plans.

Requirements

  • Bachelor’s degree in Computer Science, Software Engineering, or a related field.
  • 7–12 years of professional software engineering experience with demonstrated technical leadership across multiple teams or systems.
  • Deep knowledge of data structures and algorithms, object-oriented design, distributed systems, and complex problem solving.
  • Experience designing and evolving internet-scale services with strong scalability, availability, security, reliability, and operability.
  • Expertise in backend development using Java or C#, including Spring Boot, RESTful APIs, ODATA services, gRPC interfaces, and SQL-based systems.
  • Experience defining service boundaries, integration contracts, platform patterns, and architecture standards adopted by multiple teams.
  • Experience with event-driven architecture, Kafka, cloud-native architecture, Docker, Kubernetes, and infrastructure as code.
  • Experience establishing observability, SLI/SLO, incident-management, resilience-testing, and production-readiness practices.
  • Experience with secure API design, threat modeling, compliance-by-design, and PCI DSS or other regulated payment environments.
  • Ability to use Cursor AI, Kiro, and GitHub Copilot for delivery acceleration, documentation, code quality, and secure adoption coaching.
  • Experience designing or deploying production-grade AI agents, copilots, multi-agent systems, or distributed AI architectures, including familiarity with vector databases and AI evaluation, safety, and responsible-AI practices.
  • Preferred qualifications include a master’s degree, payments or fintech experience, fleet or mobility experience, iOS or Android development, organization-wide platform or reliability leadership, internal developer-platform experience, and production AI-solution experience.
  • Preferred familiarity with Pinecone, Weaviate, OpenSearch, or Milvus and with AI evaluation, safety, governance, and responsible-AI principles.

Tech Stack

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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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