Java Development Lead

23 hours ago

Gurgaon, 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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