Project Role Engineering Services Practitioner Project Role Description Assist with end-to-end engineering services to develop technical engineering solutions to solve problems and achieve business objectives Solve engineering problems and achieve business objectives using scientific socio-economic technical knowledge and practical experience Work across structural and stress design qualification configuration and technical management Must have skills 5G Wireless Networks Technologies Good to have skills NA Minimum 3 year s of experience is required Educational Qualification 15 years full time education Job Title 5G Core Network Ops Senior Engineer Summary We are seeking a skilled 5G Core Network Senior Engineer to join our team The ideal candidate will have extensive experience with Nokia 5G Core platforms and will be responsible for fault handling troubleshooting session and service investigation configuration review performance monitoring security support change management and escalation coordination Roles and Responsibilities 1 Fault Handling Troubleshooting o Provide Level 2 L2 support for 5G Core SA network functions in production workplace o Nokia EDR Operations Support Monitor and maintain the health of Nokia EDR systems o Perform log analysis and troubleshoot issues related to EDR generation parsing and delivery o Ensure EDRs are correctly generated for all relevant 5G Core functions AMF SMF UPF etc and interfaces N4 N6 N11 etc o Validate EDR formats and schemas against 3GPP and Nokia specifications o NCOM Platform Operations Operate and maintain the Nokia Cloud Operations Manager NCOM platform o Manage lifecycle operations of CNFs VNFs and network services NSs across distributed Kubernetes and OpenStack environments o Analyze alarms from NetAct Mantaray or external monitoring tools o Correlate events using Netscout Mantaray and PM CM data o Troubleshoot and resolve complex issues related to registration session management mobility policy charging DNS IPSec and Handover issues o Handle node-level failures AMF SMF UPF NRF UDM UDR PCF CHF restarts crashes overload o Perform packet tracing Wireshark or core trace PCAP logs and Nokia PCMD trace capturing and analysis o Perform root cause analysis RCA and implement corrective actions o Handle escalations from Tier-1 support and provide timely resolution 2 Automation Orchestration o Automate deployment scaling healing and termination of network functions using NCOM o Develop and maintain Ansible playbooks Helm charts and GitOps pipelines FluxCD ArgoCD o Integrate NCOM with third-party systems using open APIs and custom plugins 3 Session Service Investigation o Trace subscriber issues 5G attach PDU session QoS o Use tools like EDR Flow Tracer Nokia Cloud Operations Manager COM o Correlate user-plane drops abnormal release bearer QoS mismatch o Work on Preventive measures with L1 team for health check backup 4 Configuration and Change Management o Create a MOP for required changes validate MOP with Ops teams stakeholders before rollout implementation o Maintain detailed documentation of network configurations incident reports and operational procedures o Support software upgrades patch management and configuration changes o Maintain documentation for known issues troubleshooting guides and standard operating procedures SOPs o Audit NRF PCF UDM etc configuration Database o Validate policy rules slicing parameters and DNN APN settings o Support integration of new 5G Core nodes and features into the live network 5 Performance Monitoring o Use KPI dashboards NetAct NetScout to monitor 5G Core KPIs e g registration success rate PDU session setup success latency throughput user-plane utilization o Proactively detect degrading KPIs trends 6 Security Access Support o Application support for Nokia EDR and CrowdStrike o Assist with certificate renewal firewall NAT issues and access failures 7 Escalation Coordination o Escalate unresolved issues to L3 teams Nokia TAC OSS Core engineering o Work with L3 and care team for issue resolution o Ensure compliance with SLAs and contribute to continuous service improvement 8 Reporting o Generate daily weekly monthly reports on network performance incident trends and SLA compliance Technical Experience and Professional Attributes o 5-9 years of experience in Telecom industry with hands on experience o Mandatory experience with Nokia 5G Core-SA platform o Handson Experience on Nokia EDR Operations Support Monitor and maintain the health of Nokia EDR systems o Perform log analysis and troubleshoot issues related to EDR generation parsing and delivery o Experience on NCOM Platform Operations Operate and maintain the Nokia Cloud Operations Manager NCOM platform o NF deployment and troubleshooting experience on deployment scaling healing and termination of network functions using NCOM o Solid understanding for 5G Core Packet Core Network Protocol such as N1 N2 N3 N6 N7 N8 5G Core interfaces GTP-C U HTTPS and including ability to trace debug the issues o Hands-on experience with 5GC components AMF SMF UPF NRF AUSF NSSF UDM PCF CHF SDL NEDR Provisioning and Flowone o In-depth understanding of 3GPP call flows for 5G-SA 5G NSA Call routing number analysis system configuration call flow Data roaming configuration and knowledge of Telecom standards e g 3GPP ITU-T and ANSI o Familiarity with policy control mechanisms QoS enforcement and charging models event-based session-based o Hands-on experience with Diameter HTTP 2 REST APIs and SBI interfaces o Strong analytical and troubleshooting skills o Proficiency in monitoring and tracing tools NetAct NetScout PCMD tracing And log management systems e g Prometheus Grafana o Knowledge of network protocols and security TLS IPsec o Excellent communication and documentation skills Educational Qualification o BE BTech o 15 Years Full Time Education Additional Information o Nokia certifications e g NCOM NCS NSP Kubernetes o Experience in Nokia Platform 5G Core NCOM NCS Nokia Private cloud and Public Cloud AWS preferred cloud-native environments Kubernetes Docker CI CD pipelines o Cloud Certifications AWS Experience on AWS Cloud 15 years full time education