RITESH KUMAR
BANGALORE
Summary
Results-driven Senior Software Engineer with 10+ years of experience building high-performance, multi-threaded C++ applications on Linux. Deep expertise in telecom daemon development, POSIX systems programming, IPC mechanisms and Linux debugging. Proven track record of driving performance optimizations, leading design/code reviews, and mentoring engineers in Agile/Scrum environments.
Overview
11
11
years of professional experience
1
1
Certification
Work History
Senior Software Developer
Cisco Systems
Bangalore
06.2021 - Current
- Drove memory safety improvements across cnBng C++ codebase: replaced raw pointers with smart pointers ( unique _ptr , shared _ptr ), enforced RAII patterns, and eliminated memory leaks identified via Valgrind memcheck.
- Led code and design reviews for the team; defined C++ coding standards, memory-safe programming guidelines, and architectural best practices adopted team-wide.
- Mentored junior engineers through pair debugging and code reviews, fostering Linux systems programming skills within the team.
- Provided debugging support for 5G Core nodes (AMF, SMF), enhancing inter-node IPC troubleshooting using strace, gdb, and protocol analyzers.
- Collaborated with network, QA, and deployment teams in Agile/Scrum using JIRA, Git/BitBucket; improved Jenkins CI/CD pipeline for automated build and test workflows.
Senior Software Engineer
Radisys India Pvt. Ltd.
Bengaluru
05.2018 - 05.2021
- Led design and implementation of NSA Option 3x for GNB-CU, defining IPC contracts between CU-CP and CU-UP using UNIX sockets and message queues for enhanced communication.
- Led OAM (Operations, Administration & Maintenance) interface development for 5G nodes, enabling real-time configuration.
- Contributed to full SDLC (analysis, specification, design, implementation, integration testing) of 5G AMF across 5G NR RAN and Core, ensuring alignment with project requirements.
- Designed and implemented the NAS (Non-Access Stratum) interface for 5G AMF: built, validated, and encoded/decoded NAS messages using custom C++11.
- Developed and reviewed test plans and test cases for 5G AMF and GNB-CU, increasing unit test coverage using GTest framework to strengthen software reliability.
Software Engineer
Cisco Systems
Pune
08.2015 - 05.2018
- Contributed to development of CUPS (Control and User Plane Separation) in LTE, enhancing network performance.
- Debugged production issues in PGW billing and CUPS modules using gdb , log analysis, and packet captures (Wireshark).
- Participated in full SDLC (analysis, specification, design, implementation, testing); collaborated with architects and QA teams to deliver features on schedule.
- Developed unit tests and conducted integration testing for PGW and CUPS feature modules, ensuring feature reliability and quality.
Education
Master of Computer Application[M.C.A.] -
Banaras Hindu University[ I.I.T. - B.H.U.]
Varanasi06-2015
Bachelor of Computer Application[B.C.A.] -
Magadh University
Bodhgaya, Bihar06-2012
Skills
- C 11/14
- C/C 11/C 14
- Python
- Data Structures
- Algorithm
- OOPs
- System-Design
- Agile tools
- Network architecture
- 4G-EPC
- 5G-RAN
- 5G-CN
- Linux
- Version control
- Git/JIRA/BitBucket
- Agile practices
- Debugging skills
- Network design
- Software lifecycle
- Mentoring
- Agile methodologies
- Code evaluation
Certification
- Advanced C++, Industrial Training, 03/01/2019
- Python 3, Basic, 03/01/2018
- C++, Intermediate, 03/01/2016
Accomplishments
Secured AIR-4 in CUSAT MCA Entrance Examination (national-level competitive exam).
Hobbies and Interests
- Numbers
- Puzzles
- Logical problems
- Chess
- Programming
Languages
- Hindi
- English
Timeline
Senior Software Developer
Cisco Systems
06.2021 - Current
Senior Software Engineer
Radisys India Pvt. Ltd.
05.2018 - 05.2021
Software Engineer
Cisco Systems
08.2015 - 05.2018
Master of Computer Application[M.C.A.] -
Banaras Hindu University[ I.I.T. - B.H.U.]
Bachelor of Computer Application[B.C.A.] -
Magadh University