Java Development Lead

3 days ago

New Delhi, India Hawk MarTech Full time

Java Development Lead Location:Hybrid– Gurgaon Department:Technology / Engineering Experience Level:8+ Years Employment Type:Full-TimeRole Overview: As aJava Development Lead,you will play a key role in building backend services that support messaging, user management, chat history, presence tracking, and real-time communication features. You’ll work with a team of talented engineers to ensure high availability, low latency, and end-to-end performance across our platform.Key Responsibilities: Develop and maintainRESTful APIsandmicroservicesusingJava (Spring Boot) . Design and implement scalable systems for messaging, presence, notifications, and media handling. Collaborate with Erlang and mobile teams to integrate backend services with the real-time messaging core. Optimize backend performance for high throughput and low latency under heavy load. Work on message delivery guarantees, retries, deduplication, and storage mechanisms. Implement authentication, authorization, and session management features. Integrate third-party services (e.g., push notification gateways, SMS, cloud storage). Ensure code quality through unit/integration testing, code reviews, and CI/CD practices.Required Skills: 8+ years of professional experience withJavaandSpring Bootin backend development. Strong knowledge ofmicroservice architecture ,RESTful APIs , andevent-driven systems . Experience withasynchronous processing ,message queues(e.g., Kafka, RabbitMQ), andWebSockets . Solid understanding ofSQLandNoSQLdatabases (e.g., PostgreSQL, MongoDB, Redis). Experience withdistributed systems , performance tuning, and horizontal scaling. Familiarity withauthentication protocols(JWT, OAuth2) and secure API design. Comfortable working inLinux-based environments , using tools likeDockerandGit .Nice to Have: Experience working withreal-time messaging systemsorchat applications . Familiarity with protocols likeXMPP ,MQTT , or custom messaging frameworks. Exposure toDevOps practices ,CI/CD , and cloud platforms (AWS, GCP, etc.). Understanding ofend-to-end encryptionand secure data storage. Knowledge ofWebRTC , STUN/TURN servers, or media streaming protocols (for future features like voice/video).

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