IMS Developer Job in Delhi | C/C++ Expert with 4G Core & SIP Protocol Skills – Apply Now
IMS Developer – C/C++ Specialist | Telecom Core Network Development | Delhi / Gurgaon
Are you a seasoned IMS Developer seeking a challenging opportunity to contribute to cutting-edge telecom solutions? A reputed technology company in Delhi/Gurgaon is actively looking for an experienced IMS Developer to join its technology team. This role is ideal for individuals with a strong foundation in IMS Network development, C/C++ programming, and telecom protocol stacks, who are eager to take ownership of high-impact projects in 4G/5G network environments.
Job Overview
Position Title: IMS Developer
Location: Delhi / Gurgaon
Experience Required: 6 to 8 Years
Employment Type: Full-Time
Application Deadline: 11 September 2025
Job Function: Technology – Core Network Development
Role: Telecom IMS Developer (C/C++ Specialist)
Industry: Telecom / IT Services / Core Network Engineering
Educational Qualification: A Bachelor’s degree in Engineering with a specialization in Computer Science, Electronics, or a closely related field.
About the Role
As an IMS Developer, you will play a critical role in the design, development, and deployment of IP Multimedia Subsystem (IMS) network solutions. You will be involved in the end-to-end development of telecom core network components, particularly focusing on the 4G core and Control and User Plane Separation (CUPS) architectures.
The ideal candidate should possess strong programming capabilities in C/C++, expertise in multithreaded applications, deep understanding of telecom protocols (SIP, RTP, Diameter), and the ability to work on large-scale systems that require low-latency and high-throughput performance.
Key Responsibilities
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Design and Develop IMS Network Solutions:
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Build scalable and reliable IMS-based services for next-generation communication platforms.
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Work on the development and enhancement of 4G Core and CUPS architectural modules.
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Hands-on Software Development:
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Write efficient and optimized code in C/C++ for real-time applications.
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Develop multithreaded modules ensuring thread-safety and concurrency control.
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Utilize Linux-based system programming and socket-level communication.
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Protocol Stack Integration:
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Implement and manage telecom protocols including SIP, RTP, TCP/IP, UDP, IPC, and Diameter.
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Analyze and apply 3GPP protocol specifications to design and implement robust network architectures.
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Debugging and Code Optimization:
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Perform extensive debugging using tools such as GDB, Strace, Valgrind, etc.
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Enhance application efficiency by leveraging static and dynamic analysis tools for performance optimization.
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Database Management:
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Design and implement relational (SQL) and non-relational (NoSQL) databases for network services.
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Ensure high availability and low-latency access to data.
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Collaboration and DevOps Practices:
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Collaborate with architects, QA engineers, DevOps teams, and product stakeholders.
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Follow DevOps methodology, CI/CD pipelines, and containerized deployments (Docker/Kubernetes).
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Emerging Technologies:
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Stay updated with developments in Cloud Infrastructure, Network Function Virtualization (NFV), and Software-Defined Networking (SDN).
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Contribute to transitioning legacy systems to microservice and cloud-native architectures (VNF, CNF).
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Required Skills and Expertise
Technical Skills
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Programming Languages:
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Proficient in C and C++
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Strong knowledge of multi-threading, memory management, and real-time programming
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Operating System:
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Linux (Kernel internals, IPC, process/thread management)
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Experience in shell scripting and system performance tuning
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Telecom Protocols:
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Deep understanding of SIP, RTP, Diameter, TCP/IP, UDP
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Familiarity with IMS, VoLTE, and 3GPP-based protocol stacks
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Databases:
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Hands-on with SQL databases like MySQL, PostgreSQL
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Experience with NoSQL databases like MongoDB, Cassandra (preferred)
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Tools & Debugging:
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GDB, Strace, Valgrind, perf
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Static/dynamic code analysis tools for memory leak detection and optimization
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Architecture:
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Familiar with Control/User Plane separation in 4G (CUPS)
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Understanding of NFV/SDN, VNF, CNF, and container-based deployment models
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Cloud & DevOps:
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Exposure to Docker, Kubernetes, and CI/CD tools like Jenkins, GitLab CI
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Awareness of microservice architecture and API-driven development
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Preferred Experience and Attributes
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Minimum 4+ years of relevant experience in IMS or Core Network Development
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Deep knowledge of telecom signaling, media handling, and IMS call flows
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Ability to write clean, scalable, and production-ready code
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Excellent problem-solving, system analysis, and debugging skills
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Strong documentation practices and adherence to software engineering standards
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Self-motivated with a proactive attitude and attention to detail
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Ability to thrive in a fast-paced, dynamic development environment
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Strong communication and collaboration skills across cross-functional teams
Why Join Us?
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Work on mission-critical telecom network solutions that power the future of digital communications.
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Get exposure to cutting-edge technologies like 5G, NFV, SDN, and Cloud-native telecom platforms.
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Collaborate with a highly skilled engineering team focused on innovation and performance.
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Opportunity to build solutions deployed across telecom operators and large-scale enterprises.
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Flexible working environment with growth opportunities and technical certifications.
Location
This role is based in Delhi or Gurgaon, offering excellent connectivity, a modern tech ecosystem, and the opportunity to work with industry leaders in telecom infrastructure and cloud-native networks.
Apply Now
If you’re a technically sound, passionate IMS Developer ready to take your career to the next level, this is the opportunity you’ve been waiting for. Submit your application today and join a team that’s transforming global communication technology.
Job Reference ID: 369817
Function Area: Technology / Core Network Development
Level: Mid to Senior-Level Engineer
Application Deadline: 11 September 2025
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