Position: Java Developer/Lead – Telecom 4G/5G Core
Experience: 4–12 Years
Location: Gurgaon
Employment Type: Full-Time
Job Summary
We are looking for an experienced Java Developer with strong Telecom Domain expertise, particularly in 4G/5G Core, Diameter, IMS, and SIP. The candidate should have hands-on experience in developing, enhancing, and troubleshooting telecom applications and signaling solutions.
Key Responsibilities
Design, develop, and maintain telecom applications using Java/J2EE.
Develop and integrate solutions for 4G/5G Core Network environments.
Work on telecom signaling protocols including Diameter and SIP.
Develop and troubleshoot components related to IMS (IP Multimedia Subsystem).
Analyze protocol traces, logs, and network captures for debugging and issue resolution.
Collaborate with QA, DevOps, System Engineering, and Product teams.
Participate in requirement analysis, design, coding, code reviews, testing, and production support.
Optimize application performance, scalability, and reliability.
Support customer issues and provide technical solutions when required.
Mandatory Skills
Strong hands-on experience in Core Java.
Good experience in Java/J2EE development and object-oriented programming.
Strong Telecom Domain experience in 4G/5G Core.
Hands-on knowledge of Diameter Protocol.
Experience with IMS and/or SIP.
Good understanding of telecom signaling and communication interfaces.
Strong debugging and problem-solving skills.
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Experience working on Linux/Unix environments.
Good to Have
Experience with Spring / Spring Boot.
Knowledge of REST APIs and microservices.
Experience with HTTP/2 and 5G Service-Based Architecture (SBA).
Exposure to Docker/Kubernetes and cloud-native telecom applications.
Knowledge of CI/CD tools such as Jenkins/GitLab.
Experience with Wireshark or other protocol analysis tools.
Exposure to Agile/Scrum methodology.
Education
Bachelor's or Master's degree in Computer Science, Electronics, Telecommunications, or a related field.
