Senior Telecom Protocol Developer

About Persistent

We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what's next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.

Our disruptor's mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We reported $1,654.4M FY26 revenue with 17.4% Y-o-Y growth. We have delivered 24 sequential quarters of growth with $436.0M in Q4 FY26 revenue, up 3.2% Q-o-Q and 16.2% Y-o-Y growth. Our 27,500+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been recognized as the Fastest Growing IT Services Brand Globally in the 2026 Brand Finance IT Services 25 Report. We named a Leader in the Everest Group Private Equity (PE) Services PEAK Matrix Assessment 2026 and Software Product Engineering PEAK Matrix Assessment 2026.

About Position:

We are seeking an experienced Telecom Protocol Developer with strong expertise in C programming, LTE/5G RAN technologies, and telecom protocol stack development. The ideal candidate will be responsible for designing, developing, and enhancing eNodeB/gNodeB software components, implementing NAS and SCTP protocols, troubleshooting complex protocol issues, and optimizing network performance. This role provides an opportunity to work on next-generation wireless communication technologies and contribute to the development of high-performance telecom solutions in Linux-based environments.

• Role: Senior Telecom Protocol Developer
• Location: Gurugram, Bengaluru
• Experience: 7 to 15 Years
• Job Type: Full Time Employment

What You'll Do:

• Design, develop, and maintain software components for LTE and 5G eNodeB/gNodeB platforms.
• Implement and optimize features across LTE/5G protocol stacks.
• Develop high-performance telecom software modules using C programming on Linux platforms.
• Design and implement NAS (Non-Access Stratum) and SCTP protocol functionalities.
• Analyze protocol logs, debug signaling issues, and troubleshoot complex network problems.
• Perform software integration, system validation, defect resolution, and protocol compliance testing.
• Optimize application performance, memory utilization, and processing efficiency.
• Collaborate with architects, QA teams, product owners, and system engineers to deliver robust telecom solutions.
• Participate in feature design discussions and contribute to protocol architecture enhancements.
• Support interoperability testing with network equipment and third-party systems.
• Develop technical documentation, design specifications, and implementation guidelines.
• Contribute to continuous improvement initiatives focused on product quality, scalability, and reliability.

Expertise You'll Bring:

• 7-15 years of experience in telecom software development and protocol stack engineering.
• Strong hands-on programming expertise in C within Linux environments.
• In-depth understanding of LTE and 5G RAN architecture and network components.
• Proven experience in NAS (Non-Access Stratum) and SCTP protocol development.
• Strong knowledge of mobile communication protocols and signaling procedures.
• Experience working on eNodeB, gNodeB, or wireless network infrastructure products.
• Expertise in protocol integration, troubleshooting, debugging, and performance optimization.
• Strong Linux development experience, including debugging and system-level analysis.
• Knowledge of RRC, S1AP, X2AP, NGAP, and other 4G/5G signaling protocols.
• Experience with packet analysis and protocol troubleshooting tools.
• Understanding of telecom network architecture, mobility management, and subscriber signaling flows.
• Strong analytical, problem-solving, and debugging capabilities.
• Experience with software version control, build systems, and development lifecycle processes.
• Ability to work effectively in cross-functional and globally distributed teams.
• Excellent communication and technical documentation skills.

Benefits:

• Competitive salary and benefits package
• Culture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications
• Opportunity to work with cutting-edge technologies
• Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards
• Annual health check-ups
• Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents

Values-Driven, People-Centric & Inclusive Work Environment:

Persistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.

• We support hybrid work and flexible hours to fit diverse lifestyles.
• Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.
• If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment

Let's unleash your full potential at Persistent -persistent.com/careers

“Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.”