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.
    • 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.

Required Skills

Rest API Java , Spring Boot , Microservices Java Java/J2EE, AWS
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