Java Development Lead

18 hours ago

gurugram, India Hawk MarTech Full time

Java Development LeadLocation: Hybrid– GurgaonDepartment: Technology / EngineeringExperience Level: 8+ YearsEmployment 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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