Join our Product & Engineering team within Subscriber Signaling and Policy – Registers, where you’ll work at the core of Subscriber Data Management, modern protocols, and cutting-edge cloud and software technologies. The focus is on building robust, high-performing, secure, and easy-to-use products, with a pragmatic mindset that ensures technology always serves real product value.
In this role, you will use your advanced C++ development skills and design pattern expertise to design, develop, and test resilient systems, while working with protocols such as MAP, SSAP, and Diameter (including IMS and VoLTE interfaces). If you’re excited about solving challenging problems and shaping future-ready network solutions, this is a strong match for you.
Provide technical consultation and ownership for architecture, design, and development of HLR/HSS/UDM features, including enhancements and change requests.
Drive solutions for complex architecture challenges, new architectural concepts, and customer or maintenance topics.
Represent Registers products in internal and external forums, acting as a key technical voice.
Ensure product quality and timely delivery of new features, while efficiently handling customer issues and escalations.
Perform high-level and low-level design, requirements analysis, effort estimation, development/testing, integration, and collaboration with cross-functional teams.
Analyze and debug critical customer issues with a strong focus on performance, robustness, and meeting project quality targets.
Contribute to R&D efficiency improvements, work independently, and proactively propose innovative ideas.
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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.
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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

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.
Advanced connectivity is key to enable the opportunities of AI – opening new doors for us and our customers. Once known for connecting people, our technology is now essential to connecting intelligence.
Our priority is to deliver superior performance with the trust and security our customers need and we’re a committed innovation partner, shaping the future of connectivity.
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To view open positions and to apply, please visit: www.nokia.com/careers