Eng. Rajabu K.

About Eng. Rajabu K.

I am a Principal 5G Core and Telco Cloud Architect with 20+ years of experience designing, modernizing, and operating carrier-grade mobile and IP networks—from legacy packet core and MPLS backbones to cloud-native, Kubernetes-based 5G Core platforms.My career spans end-to-end architecture ownership, including 5G Core, Telco Cloud, MEC, EPC, IMS, IPv6 transformation, IP/MPLS, and large-scale network modernization programs. I have led national and multi-regional network transformations, owned vendor selection and architecture governance, and delivered production-ready solutions across RAN, Core, Cloud, Transport, and Security domains.I specialize in cloud-native telco platforms, including Kubernetes, Red Hat OpenShift, OpenStack, VNF/CNF design, MANO/NFVI, and PNF-to-CNF migration strategies. I have architected and validated 5G Core deployments, designed Telco Cloud PoCs and labs, and driven automation to improve deployment velocity, reliability, and operational efficiency.Beyond technology, I act as a trusted advisor to executives, customers, and global engineering teams, translating business objectives into scalable, secure, and commercially viable network architectures. I am equally comfortable whiteboarding strategy with leadership, deep-diving protocols with engineers, and guiding teams through complex transformations.Core focus areas:• 5G Core & Cloud-Native Architecture• Telco Cloud & MEC• Kubernetes, OpenShift, VNF/CNF• EPC, IMS, Policy & Charging• IPv6 & Network Transformation• IP/MPLS, SDN, SD-WAN• Executive Architecture & Advisory Open to senior architect, principal engineer, and advisory roles where large-scale network transformation, cloud-native platforms, and business impact intersect.

Experience

1. Cloud Architect Mobility Networks

   Tech Mahindra

   Jan 2018 — Present · Mexico City, MX

   Cloud Architect - Mobility Networks Architecture Transformation to Cloud Project main responsibilities includes End-to End Telco Cloud Architecture Design (National, Regional and Edge Data Centers, MEC, SLICING, MCORD), Datacenter Interconnection (DCI) design, Datacenter Fabric Design, Overlay Network Design, SDN Controller Architecture Design, Cloud Roadmap and Strategy, Cloud PoC Lab Design.

Education

• KTH Royal Institute of Technology

  M. Sc, Information Technology - Internetworking

  2006 — 2009

• University of Dar es Salaam (UDSM)

  B. Sc, Computer Engineering & Information Technology

  2000 — 2004

Skills

• Linux
• Itilv3f
• Ip
• Ipv6
• Networking
• Active Directory
• Windows Server
• Ccna
• Firewalls
• Security
• Vas
• Network Optimization
• Telecommunications
• Wan
• System Deployment
• Servers
• Network Security
• Sip
• Bgp
• Ipsec
• Lte
• Asa
• Voip
• Vpn
• Microsoft Exchange
• Troubleshooting
• Switching
• Mpls
• Unified Communications
• Tcp/Ip
• Cisco Technologies
• Solaris
• Stp
• Switches
• Computer Network Operations
• Vlan
• Core Network
• Gsm
• Juniper
• Bss