#136215 - Senior Backend Software Engineer - Java/Spring Boot

Job Description

We are seeking a hands-on Senior Backend Software Engineer to build and evolve correctness-critical financial services. This role focuses on production Java and Spring Boot 3 microservices that keep billing-account data accurate, compliant, reliable, and synchronized across distributed services, multiple datastores, and external platforms.

Enterprise experience strongly preferred.

Key Responsibilities

• Develop and maintain production Java and Spring Boot services.

• Deliver features, bug fixes, and reliability improvements across distributed backend systems.

• Design reliable event-driven workflows with safe retry and idempotency behavior.

• Solve transactional-consistency, concurrency, and notification-reliability problems at scale.

• Design and execute safe entity and database-schema migrations.

• Integrate backend services with external REST- or SDK-based platforms.

• Maintain accurate and compliant billing-account state across relational and non-relational datastores.

• Write unit and integration tests that meet established coverage and quality gates.

• Deliver production-ready changes through GitLab CI/CD pipelines.

• Improve observability, resilience, and deployment safety through Datadog monitors and canary practices.

• Use AI coding assistants responsibly while independently validating code quality and correctness.

Qualifications

• Must-Have Skills

• • 5+ years of hands-on backend engineering experience with Java and Spring Boot 3.
• • Demonstrated ownership of production microservices in a distributed-systems environment.
• • GraphQL experience through either building APIs with Netflix DGS or consuming them with the Apollo Java or Kotlin client.
• • Hands-on production experience with at least one of AWS SQS, Apache Kafka, or RabbitMQ.
• • Demonstrated experience designing idempotent event handlers.
• • Strong JPA/Hibernate and Spring Data JPA experience with MySQL or Aurora.
• • Hands-on transactional-design and optimistic-locking experience.
• • Experience writing JPA entities and managing schema migrations against a production MySQL or Aurora database.
• • Proficiency with JUnit 5 and Mockito for unit testing.
• • Experience writing integration tests against live environments.
• • Experience with Gradle multi-module builds.
• • Experience with GitLab CI/CD pipelines.
• • Experience using Datadog metrics and monitors.
• • Experience using Datadog monitors as deployment quality gates in a CI/CD pipeline.
• • Experience integrating with an external REST- or SDK-based third-party platform.
• • Responsible use of AI coding assistants such as GitHub Copilot or Claude, with independent review and validation of output.

• Nice-to-Have Skills

• • Prior experience in Billing or Payments.
• • Experience with DynamoDB using AWS SDK v2.
• • Experience with MongoDB using Spring Data.
• • Experience working across multiple datastores in one architecture.
• • Experience with Netflix DGS.
• • Experience integrating with Zuora or a comparable billing platform.

Additional Information

Required Tools & Platforms

• Java and Spring Boot 3.

• GraphQL with Netflix DGS or Apollo Java/Kotlin client.

• AWS SQS, Apache Kafka, or RabbitMQ.

• JPA/Hibernate and Spring Data JPA.

• MySQL or Aurora.

• JUnit 5, Mockito, and integration-testing tooling.

• Gradle multi-module builds.

• GitLab CI/CD.

• Datadog metrics and monitors.

• REST APIs or third-party SDKs.

• GitHub Copilot, Claude, or a comparable AI coding assistant.

Location, Time & Engagement

• Candidates must be based in an eligible APAC location.

• Full India Standard Time coverage is required.

• This is a contract engagement at 40 hours per week.

• The anticipated engagement runs through March 31, 2027.

• This is not currently a contract-to-hire opportunity.