Java Development Lead

Java Development Lead

• Location:

  Hybrid Gurgaon

• Department:

  Technology / Engineering

• Experience Level:

  8+ Years

• Employment Type:

  Full-Time

Role Overview:

Senior

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).