Nokia Cloud and Network Services, IP Telephony Applications R&D team is seeking for a highly motivated SBC engineer to address growing business needs of Nokia Session Border Controller (SBC) product. The SBC offers Service Providers economical and reliable means to secure and control media and signaling streams. Nokia SBC functions as a component within Containerized Network Function (CNF) platforms, strategically positioned at the edge of access networks. Its role encompasses securing diverse IP accesses and facilitating the delivery of all IMS services. Additionally, it extends support for roaming, IMS interconnection, and corporate SIP trunking scenarios within peering networks.

We are looking for a Principal Software Developer to become a valued member of our R&D organization. Within our team, you’ll collaborate with multinational colleagues in a dynamic R&D environment.


Your primary responsibility will be to develop and validate call processing software essential for the functioning of our critical voice core infrastructure. You’ll actively participate in the feature design phase alongside system engineers and software architects, ensuring adherence to the highest standards of quality and security. Additionally, you’ll be instrumental in providing support, resolving issues, and conducting root cause analysis for customer-reported concerns.




Must have:

  • Experience in C and C++ development and testing (minimum 7 years).
  • Proficiency in Design patterns, Data structures, Object-Oriented Programming (OOP) & Object-Oriented Design (OOD) concepts, and algorithms, with demonstrated application in a professional software team setting.
  • Understanding of IP networking, including protocols, architecture, and troubleshooting network issues.
  • Experience with Linux,
  • Commucative English level.
  • Proficiency in agile software development processes, methodologies, and toolsets.
  • Demonstrated aptitude for troubleshooting and resolving issues within intricate technical landscapes.


Nice to have:

  • Other scripting languages, and coding (e.g., Python, bash).
  • Familiarity with Git for version control.
  • Experience with Continuous Integration and Continuous Deployment (CI/CD) pipelines, including tools like Jenkins, GitLab, Gerrit.
  • Knowledge of various database solutions such as MariaDB, MySQL, Redis, etc.
  • Familiarity with telecom concepts is highly advantageous, particularly in the realm of IP Multimedia Subsystem (IMS) or other embedded systems dealing with real-time applications.
  • Knowledge of telecom protocols, especially SIP, Megaco and Diameter, is highly desirable.
  • Experience with cloud runtime environments, encompassing both OpenStack and VMWare.
  • Knowledge of Cloud Native Computing Foundation (CNCF), with a focus on Kubernetes, is beneficial.


Come create the technology that helps the world act together

Nokia is committed to innovation and technology leadership across mobile, fixed and cloud networks. Your career here will have a positive impact on people’s lives and will help us build the capabilities needed for a more productive, sustainable, and inclusive world.
We challenge ourselves to create an inclusive way of working where we are open to new ideas, empowered to take risks and fearless to bring our authentic selves to work

What we offer

Nokia offers continuous learning opportunities, well-being programs to support you mentally and physically, opportunities to join and get supported by employee resource groups, mentoring programs and highly diverse teams with an inclusive culture where people thrive and are empowered.

Nokia is committed to inclusion and is an equal opportunity employer

Nokia has received the following recognitions for its commitment to inclusion & equality:

  • One of the World’s Most Ethical Companies by Ethisphere
  • Gender-Equality Index by Bloomberg
  • Workplace Pride Global Benchmark

At Nokia, we act inclusively and respect the uniqueness of people. Nokia’s 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.

Join us and be part of a company where you will feel included and empowered to succeed.

Please be informed that we reserve ourselves the right to contact only with selected candidates.

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Dbamy również o szerokie spektrum korzyści dla Ciebie i Twoich bliskich.


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SBC Principal Software Development Engineer

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