We are looking for a Principal Technical Specialist – R&D; to lead architecture and innovation in fiber-based fixed access networks products/solutions. This role will drive end-to-end design of OLT software solutions, influencing product strategy, technology direction, and large-scale deployments through deep expertise and technical leadership.

How You Will Contribute And What You Will Learn NIFN2026

- Own and drive architecture & development of OLT software platforms, ensuring scalability, performance, and reliability.
- Work on Fiber Transport technologies with focus on GPON/XGPON systems.
- Design, develop and implement Layer 2 networking solutions (forwarding, multicast, QoS).
- Collaborate with Product Management to translate customer feedback into product features.
- Drive end-to-end troubleshooting and resolution of complex telecom software issues.
- Provide technical leadership across teams, guiding design decisions and solving complex system-level challenges.
- Contribute to an agile and fast-paced development setting, fostering innovation.

Key Skills And Experience You Have:

- Graduate or Postgraduate Degree in Engineering
- 15+ years in telecom broadband access domain (Fiber Transport / OLT development).
- Strong knowledge/domain experience in Datacom, L2 forwarding, QoS, VLAN, L2 Protocols and etc.
- Good programming expertise – C, C++ , Python, Go and etc,.
- Good Test Automation Expertise – Robo, Python and etc,.
- Very good knowledge on network processors, packet processing, traffic engineering and etc,.
- Very good knowledge on network element management, data models, etc,.
- Demonstrated experience in technical leadership / team mentoring.
- Proven track record in technical architecture, complex problem-solving, and large-scale solution delivery.

It would be nice if you also had:

- Experience in network software testing lifecycle and automation.
- Good knowledge & understanding on GPON Transport is added advantage (but not a must)

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 in India:

- Flexible and hybrid working arrangements to support work–life balance
- Health and well-being support – medical insurance for you and your family, health check-ups, life and accident insurance, well-being programs, and employee resource groups
- A minimum of 90 days of Maternity and Paternity Leave based on eligibility
- Personal Support Service 24/7 – a confidential support channel open to all Nokia employees and their families in challenging situations
- Career growth & mobility – technical career paths, job rotations, international assignments, and relocation support
- Continuous learning – technical certifications, mentoring programs, coaching, and digital learning platforms
- Opportunities to innovate and contribute through Nokia’s research and development environment
- Recognition programs that celebrate outstanding contributions
- Workplace support – ergonomic working support and mobile device programs based on eligibility

📌 Principal Technical Specialist (Chennai)
🏢 NOKIA
📍 Chennai