Bharath Munuswamy
Reading,Berkshire
Summary
Senior Core Solution Architect with 17+ years of experience delivering 4G/5G Core, IMS, EPC, SDM, and mission‑critical telecom solutions across Tier‑1 operators and government networks. Proven leadership in guiding global engineering teams, owning end‑to‑end architecture, multi‑vendor integration, and customer engagement. Strong expertise in virtualised/containerised Core, ETSI‑MANO, cloud‑native deployments, and secure solution delivery. Delivered mission‑critical IMS solutions for Qatar Ministry of Interior (MOI) Defence Network, supporting high‑availability public safety operations.
Overview
3
3
years of post-secondary education
18
18
years of professional experience
Work history
Technical Delivery Lead
Mavenir Systems Ltd
Reading, United Kingdom
2020.12 - Current
- Lead global teams delivering Core, IMS, and cloud‑native telecom solutions across multiple countries.
- Architected application integration and Life Cycle Management (LCM) with third‑party orchestrators aligned with ETSI‑MANO.
- Implemented automation frameworks improving deployment timelines and operational efficiency.
- Designed and executed comprehensive test cases ensuring compliance with HLD/LLD.
- Delivered security hardening aligned with local regulatory requirements.
- Reduced CSP interconnection time by ~45% through process optimisation and governance.
- Acted as senior technical interface for CSPs, R&D teams, and cross‑functional stakeholders.
Core Solution Architect
Nokia Networks
Chennai, India
2015.10 - 2020.12
- Delivered secure, end‑to‑end IMS Core architecture for MOI’s Defence/Public Safety network.
- Integrated HSS, CSCF, SBC, NTAS, ENUM (NetNumber), MRF across government‑grade environments.
- Executed VoLTE & VoWiFi mission‑critical call testing and validation.
- Led multi‑vendor integration ensuring high availability and compliance with defence requirements.
- Developed HLD/LLD, MoPs, DOR/SOR, and acceptance documentation for mission‑critical operations.
- Coordinated with MOI leadership and security teams to deliver a fully validated, resilient IMS solution.
- Delivered IMS/VoLTE Core solutions for Vodafone (Egypt), Orange (Spain/Egypt), Maxis (Malaysia), Sprint (USA), LMT (Latvia).
- Conducted PoC validation, hardware sizing, BoM checks, gap analysis, and phased deployments.
- Planned and executed network upgrades, implementations, and migrations with minimal user impact.
- Led multi‑vendor integration across IMS Core, Access, SDM, and EPC nodes.
- Delivered upgrades for CSCF (CFX‑5000), HSS (CMS‑8200), NT‑HLR, TAS, One‑NDS, SBC, MRF.
- Provided 3rd‑level support for APAC operators (StarHub, Ooredoo, Viettel, Optus, Telkomsel).
Senior Core Engineer – Packet Core
Tech Mahindra Ltd
Pune, India
2014.04 - 2015.10
- Delivered EPC, IMS, and PS Core integration and troubleshooting for global operators.
- Designed high‑throughput network infrastructure using OVS‑DPDK and SR‑IOV.
- Analysed GTP, Diameter, SIP, RTP traces for subscriber issues and KPI degradation.
- Supported migrations and upgrades for MME, SGW, PGW, SGSN, GGSN, SBC, CSCF.
- Executed ATP and acceptance testing for EPC and IMS nodes.
Core Network Engineer
Nokia Networks
Chennai, India
2008.12 - 2014.04
- Delivered O&M, troubleshooting, and acceptance testing for MSC, MSS, MGW, HLR.
- Managed AM/PM health checks and MDT/TCN for PS nodes.
- Integrated SGSN/GGSN with RNC, HLR, DNS, RADIUS, BSC, MPBN.
- Performed routing audits, signalling link creation, and performance optimisation.
- Ensured high availability for GSM/WCDMA Core networks.
Education
Diploma in Electrical and Electronics Engineering - Electrical & Electronics Engineering
TSHP College
Chennai 2005.04 - 2008.03
Skills
Core & IMS Technologies: MME, SGW/PGW, AMF, SMF, UPF, NRF, NSSF, HSS/HLR, One‑NDS, CSCF, SBC, TAS, ENUM, MRF
Protocols: SIP, Diameter, RTP/SRTP, SCTP, GTP, HTTP, DNS, LDAP, REST, SNMP, PTP/NTP, Kafka
Cloud & Virtualisation: OpenStack, VIO, VMware, Kubernetes, Containers, Bash, Ansible, Cert‑manager
Networking Platforms: Cisco, HPE, Dell, Big Cloud Fabric
Operating Systems: Red Hat, CentOS, Ubuntu
KEY ACHIEVEMENTS
- Delivered mission‑critical IMS solution for Qatar MOI Defence Network.
- Reduced CSP interconnection time by ~45% through process optimisation.
- Successfully launched VoLTE & VoWiFi services across multiple operators.
- Executed large‑scale Core migrations (HLR → HSS, EPC upgrades, IMS upgrades).
- Led global engineering teams delivering multi‑vendor Core solutions.
Timeline
Technical Delivery Lead
Mavenir Systems Ltd
2020.12 - Current
Core Solution Architect
Nokia Networks
2015.10 - 2020.12
Senior Core Engineer – Packet Core
Tech Mahindra Ltd
2014.04 - 2015.10
Core Network Engineer
Nokia Networks
2008.12 - 2014.04
Diploma in Electrical and Electronics Engineering - Electrical & Electronics Engineering
TSHP College
2005.04 - 2008.03