15 hours ago
Bengaluru, IndiaStaff+
Responsibilities
- Lead the migration of core credit application and adjudication logic from a legacy monolith to scalable Java/Spring Boot microservices.
- Design zero-downtime, high-volume traffic migration strategies for live production systems.
- Build modular adjudication and rules infrastructure that supports interchangeable credit rules and third-party data providers.
- Design and maintain versioned REST and gRPC APIs for mobile, web, and future AI chat experiences.
- Develop backend infrastructure for dynamic routing and A/B testing of application flows.
- Use AI-assisted development tools to refactor legacy code, generate code and tests, and automate documentation.
- Partner with Data Science teams to optimize data pipelines and backend schemas for LLM integration and real-time credit decisioning.
- Establish standards for CI/CD, OpenTelemetry observability, and automated contract testing.
- Mentor mid-level and senior engineers and promote high engineering standards and AI-assisted productivity.
Requirements
- 10+ years of engineering experience, including backend architecture in fintech, lending, or credit systems.
- Expert proficiency with Java 17/21, Spring Boot 3.x, and Spring Cloud.
- Significant experience extracting tightly coupled legacy business logic into scalable AWS cloud microservices.
- Experience building or implementing rules engines such as Drools, Camunda, or custom JSON-logic.
- Deep experience with Kafka or RabbitMQ for asynchronous data consistency during system migrations.
- Experience with contract-first API development using OpenAPI/Swagger.
- Hands-on experience using AI coding assistants such as Cursor and GitHub Copilot to refactor code and accelerate delivery.
- Strong analytical, communication, and cross-functional problem-solving skills.
- Bachelor’s degree in Computer Science or a related technical field.
Tech Stack
Categories
About WEX
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.