Senior Java Engineer

We are looking for a Senior Java Engineer to build and maintain Java and Spring Boot services for a high-stakes, distributed payments platform.

The mandatory requirements are 4+ years of backend engineering with Java and Spring Boot, Apollo GraphQL client and Aurora MySQL with JPA/Hibernate experience, event-driven systems, and experience with financial-grade systems.

RECRUITMENT PROCESS
1. Application — Share a few details about your experience and background.

2. Coding Challenge — If applicable, complete it in the coding language you are most comfortable with.

3. Video Interview — Record a short video introduction in English.

4. Technical Interview or Hiring Manager Interview — Discuss your experience and fit for the role.

5. Offer — If it’s a match, you’ll receive an offer.

WHAT YOU’LL GAIN
• Remote work — Work from where you feel most productive.

• Local presence in India — Work in a structured and compliant environment aligned with Indian regulations.

• Competitive compensation in INR — Receive compensation in INR, plus support for learning, education, and wellness.

• Exciting projects — Work with modern technologies for global clients and fast-growing companies.

MUST HAVES
• 4+ years of backend engineering with Java and Spring Boot (Boot 3 preferred) in production microservices.

• Demonstrated ownership of production services in a distributed systems environment.

• Experience with GraphQL — either building APIs with Netflix DGS or consuming them via the Apollo Java/Kotlin client (Apollo GraphQL client experience required).

• Hands-on experience with AWS SQS, Apache Kafka, or RabbitMQ in event-driven, distributed systems.

• Strong JPA/Hibernate experience with MySQL/Aurora (Spring Data JPA), including transactional design and optimistic locking.

• Experience writing JUnit 5 unit tests with Mockito and integration tests against live environments.

• Proficiency with Gradle multi-module builds.

• Experience with GitLab CI/CD pipelines and Datadog (metrics and monitors).

• Comfortable using AI coding assistants (e.g., GitHub Copilot, Claude) responsibly to accelerate development while maintaining code quality and correctness.

• Experience with financial-grade backend systems where correctness, idempotency, and consistency are non-negotiable.

• Ability to reason clearly about transactional boundaries across external systems (e.g., a third-party billing platform plus a local metadata store).

• Have built or maintained a production Spring Boot service that consumes events from SQS, Kafka, or RabbitMQ.

• Have designed idempotent event handlers for workflows.

• Have written JPA entities and managed schema migrations against a production MySQL/Aurora database.

• Have integrated with an external REST- or SDK-based third-party platform.

• Have set up or worked with Datadog monitors as deploy quality gates in a CI/CD pipeline.

• Upper-intermediate English level.

NICE TO HAVES
• Prior experience in the Billing or Payments domain.

• Experience with DynamoDB (AWS SDK v2) and/or MongoDB (Spring Data) in a multi-store architecture.

• Experience with Netflix DGS.

WHAT YOU WILL DO
• Develop and maintain backend Java/Spring Boot services across the Payments platform.

• Add new payment methods to the platform's existing capabilities.

• Contribute to feature development, bug fixes, and reliability improvements across these services.

• Deliver production-ready feature work and bug fixes through GitLab CI, with unit and integration test coverage that meets Jacoco gates.

• Strengthen system reliability through improved observability, resilience patterns, and safe canary and production deploys gated by Datadog monitors.