Senior Java Developer

We are looking for a Senior Java Developer to own core billing infrastructure that keeps advertiser accounts accurate and in sync across multiple datastores. This person builds Spring Boot services handling event-driven correctness and transactional consistency at scale.

The mandatory requirements are 4+ years of backend engineering with Java and Spring Boot 3, production microservices ownership, GraphQL, event-driven distributed systems using AWS SQS, Apache Kafka, or RabbitMQ, strong JPA/Hibernate and Spring Data JPA with MySQL/Aurora, testing with JUnit 5 and Mockito, Gradle multi-module builds, GitLab CI/CD, Datadog, and responsible use of AI coding assistants.

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 hands-on backend engineering with Java and Spring Boot 3 , building production microservices.

• Senior level with 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.

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

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

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

• Experience with Gradle multi-module builds .

• Experience with GitLab CI/CD pipelines .

• Experience with Datadog for metrics and monitors.

• Responsible use of AI coding assistants (e.g., GitHub Copilot, Claude) to accelerate development while maintaining code quality and correctness.

• 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, contributing feature development, bug fixes, and reliability improvements across BAM services.

• Solve problems around transactional consistency, event-driven correctness, notification reliability at scale, and safe multi-entity migrations for advertisers globally.

• Keep advertiser billing accounts accurate, compliant, and in sync across multiple datastores (MySQL, DynamoDB, MongoDB) and external platforms (Zuora).

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

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