NW Perf and Optimization Expert

Job Description Job Description We are seeking a highly skilled 5G Core Expert to join our dynamic team, driving the design, optimization, and support of cutting-edge Nokia 5G core networks. This role focuses on delivering exceptional network performance, resolving complex technical challenges, and collaborating with cross-functional teams to enhance Nokia's 5G solutions. The ideal candidate will bring deep expertise in 5G Core architecture, protocols, and KPI optimization, with a customer-facing mindset and hands-on experience in network troubleshooting and capacity planning. How You Will Contribute And What You Will Learn - Optimize 5G Core KPIs, identify bottlenecks, and perform E2E trace analysis using tools (e.g., Wireshark, RADCOM, NETSCOUT, Polystar, Traffica, Ribbon, etc.) - Conduct System and POD-level Health Checks. - Deep understanding of 5GC architecture, interfaces, and call flows (Registration & Authentication, Session & Mobility Management, Policy & Charging Control, Roaming & Interworking, High Availability, and Redundancy). - Analysis of 5G Core protocols (NAS, NGAP, SCTP, GTP, HTTP/2, PFCP, Diameter, Paging). Knowledge of HLD, LLD design, MOP Validations, and necessary modifications. - Conduct trace analysis using Wireshark (PCAPs) and analyze cause codes. Perform E2E tracing and call flow analysis, collect logs, PCMD, and analyze cause codes, reason headers, KPI trends, and come up with actionable insights. - Interface with customers to resolve network issues and complaints. - Assist in migration planning for live packet core networks. - Define and optimize 5 G Core (5GC) parameters, timers, and policies. Provide network design, planning, and verification support. Perform network capacity planning and dimensioning. - Support new feature testing and performance evaluations. Prepare and maintain technical documentation (network diagrams, configurations, procedures). Key Skills And Experience You have: - Graduate or Postgraduate in the Engineering stream . Minimum 12+ years of domain experience - Extensive knowledge of Nokia 5G Core networks, including AMF, SMF, UPF, NSSF. Experience in the latest Nokia Products NCP, SDL & Blueprint, and Custom Apps. Expertise in 3GPP Signalling procedures & call flows. - Experience in Nokia 5GC- network performance monitoring, KPI analysis, and optimization. Proficiency in network troubleshooting, tracing, and log analysis. - Experience with cloud computing platforms and virtualization technologies VNFs & CNFs - Perform health checks at the System and POD levels. - Experience on probes and monitoring tools for tracing & KPI improvement Voice & Data - Experience in incident impact analysis and network optimization. It would be nice if you also had: - Ability to work in shifts to support global customer projects. Good collaboration, communication, and presentation skills. Proficient in English, MS Office & Power BI. - Skilled in any of Kubernetes, Docker, AWS services, Scripting, and/or Python programming. About Us 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. Learn more about life at Nokia . About The Business Group Join Mobile Networks (MN) and help us become the trusted partner of choice for Communications Service Providers (CSPs), as well as for non-CSP entities in sectors like utilities, transportation, public services, and defense. Your work will contribute to delivering unbeatable customer experiences in wireless connectivity. 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