Java Development Lead

4 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 a Java 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 maintain RESTful APIs and microservices using Java (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 with Java and Spring Boot in backend development. - Strong knowledge of microservice architecture, RESTful APIs, and event-driven systems. - Experience with asynchronous processing, message queues (e.g., Kafka, RabbitMQ), and WebSockets. - Solid understanding of SQL and NoSQL databases (e.g., PostgreSQL, MongoDB, Redis). - Experience with distributed systems, performance tuning, and horizontal scaling. - Familiarity with authentication protocols (JWT, OAuth2) and secure API design. - Comfortable working in Linux-based environments, using tools like Docker and Git.Nice to Have:- Experience working with real-time messaging systems or chat applications. - Familiarity with protocols like XMPP, MQTT, or custom messaging frameworks. - Exposure to DevOps practices, CI/CD, and cloud platforms (AWS, GCP, etc.). - Understanding of end-to-end encryption and secure data storage. - Knowledge of WebRTC, STUN/TURN servers, or media streaming protocols (for future features like voice/video).

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