Prashant Kumar Singh
Senior Solution Engineer (Ims Volte Integration & Test Engineer) @Nokia
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WORK HISTORY
Senior Solution Engineer (Ims Volte Integration & Test Engineer) @Nokia
Integrated and validated Nokia IMS nodes (P-/I-/S‑CSCF, TAS, HSS/UDM, SBC, MRF, in a carrier-grade Deutsche Telekom environment.• Executed IMS/VoLTE/VoWiFi functional, regression, interoperability and UAT testing for registration, MT/MO calls, emergency, SRVCC and interconnect scenarios.• Performed SIP, Diameter, RTP and SIGTRAN troubleshooting using Wireshark and Nokia trace tools to resolve core network signaling/media issues.• Delivered cloud-native IMS deployments using Docker, Kubernetes and CaaS, validating microservices scaling, resilience, HA and failover.• Automated IMS & provisioning test execution using GTAF/TAF frameworks, improving regression coverage and reducing manual cycles.• Managed subscriber provisioning using LDAP Manager and validated HLR/HSS/UDR profiles (APN, QCI, AMBR, IMS subscription, VoLTE/VoWiFi flags, barring/roaming).• Ensured E2E service readiness by validating BSS-driven activation flows across CRM, OMS, Fulfilment and Provisioning Gateway for IMS/VoLTE enablement.• Conducted REST/SOAP API testing using Postman, SOAPUI & JMeter for activation, modification, SIM provisioning, entitlement and RIO portability flows.• Validated Entitlement Server behavior for VoLTE/VoWiFi and ensured accurate sync from CRM/OMS towards IMS core (physical SIM & eSIM).• Investigated provisioning fallouts by correlating CRM/OMS records, Fulfilment tasks, PGW logs, network responses and IMS registration traces; performed cross-domain RCA.• Supported software upgrades, migrations, MOP preparation, rollback plans and clean-run validations in pre-prod and prod environments.• Collaborated with Nokia R&D, Deutsche Telekom operations and cross-domain teams for issue resolution, release readiness and service stability.Skills:IMS (CSCF, TAS, HSS/UDM, SBC)| VoLTE/VoWiFi | SIP/Diameter | 4G/5G Core | BSS (CRM, OMS, PGW)| HLR/HSS/UDR Provisioning | Entitlements | REST/SOAP APIs | Postman | JMeter | Docker | Kubernetes| AWS | Linux | Wireshark
EDUCATION
University of Europe for Applied Sciences
Master's degree, Data Science
Punjabi University, Patiala
B.Tech – Information Technology (STEM/Engineering Qualification) , Information Technology
Maharshi Dayanand University (MDU), Rohtak
Master of Business Administration - MBA, Production and Operations
ABOUT PRASHANT KUMAR SINGH
Senior Solutions Engineer – Telecom Core & BSS Provisioning with 10+ years of international experience across Europe, Asia, and LATAM, specializing in deployment, integration, testing, and SLA-driven support for 3G/4G/5G IMS networks, VoLTE/VoWiFi, and end-to-end service activation flows. Skilled in validating core network services based on HLD/LLD, executing functional and feature testing, and ensuring seamless activation across CRM, OMS, Fulfilment, Provisioning Gateway, HLR/HSS/UDR, and IMS domains. Brings strong cross-domain exposure in BSS/OSS, subscriber provisioning, inventory lifecycle management, entitlement flows (VoLTE/VoWiFi/5G), and API-based activation using Postman, SOAPUI, and JMeter. Experienced in delivering carrier-grade cloud‑native telecom applications on AWS, Docker, Kubernetes, VMware, NFV/CNF, and multi-vendor environments including Nokia, Ericsson, Huawei, and Deutsche Telekom ecosystems. Holds an M.Sc. in Data Science (CGPA 82.5%/ German Grade 1.7) with practical experience in predictive analytics, applied to network optimization, fault prediction, and operational insights.
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