Senior Java Developer (enterprise microservices delivery)

Role overview

Senior Java Developer (enterprise microservices delivery) at Bounteous

You will bring strong expertise in Java, Spring Boot, and Apache Kafka - building scalable, resilient backend services deployed on Azure (preferred) or AWS.

We are looking for a Senior Java Developer with 6-9 years of experience to design, develop, and maintain enterprise-grade microservices and event-driven applications.

You will work closely with architects, product owners, and cross-functional engineering teams to deliver high-quality, cloud-native solutions at enterprise scale.

Responsibilities

• Java & Spring Boot Design, develop, and maintain scalable Java microservices using Spring Boot - applying clean architecture, SOLID principles, and microservices design patterns.
• Build secure, well-documented RESTful APIs - following API-first design principles, OpenAPI / Swagger standards, and versioning best practices.
• Develop and optimise data access layers using Spring Data JPA / Hibernate - managing entity relationships, query optimisation, and database migrations.
• Write comprehensive unit and integration tests using JUnit and Mockito - maintaining high code coverage through TDD practices.
• Participate actively in code reviews - upholding coding standards, security practices, and architectural consistency.
• Apache Kafka & Event-Driven Architecture Design and implement event-driven microservices using Apache Kafka - developing producers, consumers, and Kafka Streams applications with Spring Kafka.
• Design Kafka topic architecture - partitioning strategies, replication factors, retention policies, and consumer group configurations.
• Implement robust error handling - DLQ, retry strategies, and poison pill handling for resilient Kafka consumer behaviour.
• Configure Kafka Schema Registry with Avro or Protobuf - enforcing schema evolution and backward / forward compatibility.
• Monitor and troubleshoot Kafka cluster health - consumer lag, partition rebalancing, and broker performance metrics.
• Azure Cloud (Preferred) Design and deploy cloud-native Java microservices on Azure - AKS, App Services, Azure Functions, and Azure Container Registry.
• Integrate applications with Azure messaging services - Service Bus, Event Hub, and Event Grid - alongside Kafka for hybrid event-driven architectures.
• Implement Azure security best practices - Managed Identities, Key Vault, Azure AD RBAC, and Private Endpoints.
• Configure Azure monitoring and observability - Application Insights, Azure Monitor, and Log Analytics.
• Build and maintain CI/CD pipelines using Azure DevOps - automating build, test, security scanning, and deployment workflows.
• Architecture & Delivery Contribute to microservices architecture - applying DDD, CQRS, Event Sourcing, and Saga patterns.
• Collaborate with Solution Architects, BAs, Product Owners, and DevOps teams in Agile sprint delivery.
• Troubleshoot complex production issues - Kafka consumer lag, performance bottlenecks, and distributed system failures.
• Produce clear technical documentation - API contracts, event schemas, and deployment runbooks.
• Mentor and support junior Java developers across Spring Boot, Kafka, and Azure domains.
• What We're Looking For 6-9 years of hands-on Java development with a strong track record of enterprise microservices delivery in production.
• Deep Spring Boot expertise - Spring MVC, Spring Cloud, Spring Security, and Spring Kafka.
• Proven Apache Kafka experience - producer / consumer development, Kafka Streams, topic design, DLQ, and Schema Registry.
• Solid database skills - relational (Azure SQL / PostgreSQL / MySQL) and non-relational (Cosmos DB / MongoDB / Redis).
• Experience with Docker and Kubernetes / AKS for cloud-native microservices deployment.
• Hands-on CI/CD experience - Azure DevOps, Jenkins, or GitLab CI.
• Strong understanding of event-driven architecture - messaging patterns, eventual consistency, and saga orchestration.
• Excellent communication and collaboration skills across architects, product owners, and engineering teams.
• Nice to Have OpenSearch / Elasticsearch - index design, full-text search, aggregations, and Spring Boot integration.
• Azure Managed Kafka (Event Hub for Kafka) or AWS MSK experience.
• Service mesh - Istio or Linkerd - for AKS microservices traffic management.
• CQRS and Event Sourcing using Axon Framework or equivalent.
• GraphQL API development alongside REST.
• Terraform or Azure Bicep for Infrastructure-as-Code.
• Azure Developer Associate (AZ-204) or Azure Solutions Architect (AZ-305) certification.
• AWS Certified Developer Associate certification.
• Experience in Financial Services, FinTech, or regulated industry environments.

Preferred qualifications and skills

• Strong Azure cloud experience (preferred) - AKS, App Services, Service Bus, Event Hub, Key Vault, Azure AD, and Azure DevOps.

Employment details

• Location: Gurgaon [India]