Lead Developer
Nokia
Software Engineering
India
Posted on Nov 24, 2025
In this role, you will develop critical components of CSCF (IP Multimedia Subsystems), interact with Software Architects, Test teams for feature analysis and component impacts, design, develop, and maintain high-performance C++ applications, write clean, efficient, and maintainable code following best practices, conduct research on new algorithms, frameworks, and tools to enhance product performance and functionality, develop proof-of-concept prototypes to validate new ideas and approaches, work closely with product management, QA, and other engineering teams to define requirements and ensure seamless integration, participate in code reviews, providing constructive feedback to team members.
About Nokia
Join us in creating the technology that helps the world act together.
We are a B2B technology innovation leader, pioneering networks that sense, think and act™, putting the world’s people, machines and devices in sync to create a more sustainable, productive and accessible future.
About the Business Group
In Cloud and Network Services, as Nokia's growth engine, we create value for communication service providers and enterprise customers by leading the transition to cloud-native software and as-a-service delivery models. Our inclusive team of dreamers, doers and disruptors push the limits from impossible to possible.
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.
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
You will be responsible for Product ownership, System Architecture, SW Design, Development and System testing. this role includes developing features for Tier 1 customers based on 3GPP standards for VoLTE and 5G, Geo-Redundancy, Performance and Scalability on various platforms like Cloud, Cloud Native and Third-party Public Cloud. A vibrant work culture with flexible mode of working, it is the right place to see and build a long career path.
You have:
- Bachelor's or master's degree in computer science, Software Engineering, or a related field.
- Five to Eight years of experience.
- Expert in C++ and OOPs concepts
- Experience in Linux, Inter-process communication/Networking and Multithreading.
- Experience working on and integrating Open-Source components
- Good knowledge of SIP, DIAMETER and HTTP
It would be nice if you also had:
- Good knowledge on IMS/Volte/Networking Domain
- GIT and Gerrit knowledge
- Go through the Requirement specifications and understanding the feature end to end
- High level and Low-level design of the feature under the product umbrella
- Implementation of the feature with object-oriented principles
- Customer issue analysis and plan for the release with right impact analysis
- Work in the development of critical components of CSCF (IP Multimedia Subsystems)
- Own component areas that provide specific functions and interfaces.
- Interact with Software Architects, Test teams for feature analysis and component impacts.
- Work closely with Customers for issue analysis and defect handling,