Technical Specialist (Voice)

Actively Reviewing the Applications

Nokia

India, Tamil Nadu, Chennai Full-Time On-site

Posted 2 weeks ago • Apply by June 16, 2026

Job Description

Job Description

We are looking for a talented and experienced Technical Specialist to enhance our team's capabilities. The successful candidate will play a crucial role in developing and maintaining our voice services, leveraging their expertise in C/C++ and VoIP technologies. This role offers an opportunity to work with cutting-edge technologies and contribute to innovative solutions in the telecommunications industry.

How You Will Contribute And What You Will Learn

Develop and debug C/C++ code for multi-process/threaded environments, ensuring high-quality and efficient solutions.
Demonstrate a strong understanding of VoIP (SIP/H248), T38, SIP over TCP, VoLTE, voice quality/QoS, DSP, and voice codecs.
Utilize management protocols like SNMP and Netconf/Yang for effective system management and monitoring.
Have a good understanding of RJ11 and Z-interface specifications, ensuring compatibility and integration.
Proficiently use debugging tools such as SIPP, Wireshark, Valgrind, and GDB to identify and resolve issues.
Collaborate with various vendors to integrate and optimize different SoC architectures and toolchains.
Deep knowledge of Linux, including user space and kernel space, and IPC techniques for efficient inter-process communication.
Understand network architecture, TCP/IP, and IPV4/IPV6 addressing, with a basic understanding of L2/L3 routing.
Experience with xDSL, GPON, and IPDSLAM products is an added advantage, aligning with our product line.

Key Skills And Experience

Bachelor's degree or above in Telecommunication, Electronic Engineering, Computer Science, or a related field.
5+ years of experience in C/C++ development and debugging in a multi-process/threaded environment.
Strong understanding of VoIP technologies, including SIP, H248, T38, and VoLTE, and voice quality/QoS parameters.
Familiarity with management protocols: SNMP, Netconf/Yang.
Good knowledge of RJ11 and Z-interface specifications.
Proficiency in debugging tools: SIPP, Wireshark, Valgrind, and GDB.
Experience with different SoC architectures (32-bit, 64-bit) and toolchains.
Deep understanding of Linux, IPC techniques, and network architecture.
Understanding of TCP/IP, IPV4/IPV6 addressing, and basic L2/L3 routing.
Experience with xDSL, GPON, or IPDSLAM products is preferred.

About Us

Advancing connectivity to secure a brighter world.

Nokia is a global leader in connectivity for the AI era. With expertise across fixed, mobile and transport networks, powered by the innovation of Nokia Bell Labs, we’re advancing connectivity to secure a brighter world.

Learn more about life at Nokia .

Our recruitment process

We act inclusively and respect the uniqueness of people. Our employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law. We are committed to a culture of inclusion built upon our core value of respect.

If you’re interested in this role but don’t meet every listed requirement, we still encourage you to apply. Unique backgrounds, perspectives, and experiences enrich our teams, and you may be just the right candidate for this or another opportunity.

The length of the recruitment process may vary depending on the specific role's requirements. We strive to ensure a smooth and inclusive experience for all candidates. Discover more about the recruitment process at Nokia .

About The Team

Some of our benefits:

Flexible and hybrid working schemes
A minimum of 90 days of Maternity and Paternity Leave, with the option to return to work within a year following the birth or adoption of a child (based on eligibility)
Life insurance to all employees to provide peace of mind and financial security
Well-being programs to support your mental and physical health
Opportunities to join and receive support from Nokia Employee Resource Groups (NERGs)
Employee Growth Solutions to support your personalized career & skills development
Diverse pool of Coaches & Mentors to whom you have easy access
A learning environment which promotes personal growth and professional development - for your role and beyond