core Java backend/system-level developer

Job Summary

Job Description (JD) - Must Have (Core Skills). Strong Core Java developer (minimum Java 1.8; current work in Java 17/21).

Core Skills (Must Have)

• Strong Core Java developer (minimum Java 1.8; current work in Java 17/21)
• Strong command of: OOP concepts
• Java Collections
• Exception handling
• Multithreading concurrency (locks, executors, sync, thread pools)
• Experience in inter-service communication (REST, TCP, messaging)
• ZMQ for TCP-based communication
• HTTP-based communication in Python (or any other language) components
• Ability to work independently with minimal supervision
• Hands-on experience with caching, memory optimization and maintaining latest data in temp process memory
• Experience in distributed messaging systems
• Comfort working in Linux environments

Nice to Have

• Working knowledge of Python
• Experience with Job Scheduler
• Familiarity with ReactJS (only optional, front-end exposure)
• Experience with CI/CD pipelines and Agile methodology
• Exposure to low-latency applications

Not Required

• No requirement for Spring, Spring Boot, Hibernate or ORM experience.

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