5G
Design, deployment and tuning of 5G core networks — throughput, latency, and slicing for carrier-grade infrastructure.
STATUS: OPEN TO ENGAGEMENTS
Where 5G networks
Where 5G networks
meet quantum computing.
I'm Rajesh Mhatre — a telecom engineer working across the 5G core and User Plane Function (UPF), and a researcher exploring quantum computing's next commercial frontier. I write about both, and I build systems that have to work in production, not just in a whitepaper.
- 5G & UPF Engineering
- Quantum Computing
- Cybersecurity & AI Security
- Trust Layer Architecture
8+ yrs
Telecom & Core Networks
5G / UPF
Core Specialisation
QC
Active Research Track
WHAT I DO
Six disciplines, one engineering mindset.
From carrier-grade core networks to the emerging quantum and AI trust stack.
UPF
User Plane Function engineering — performance tuning, session handling, and packet processing at scale.
Quantum Computing
Exploring quantum algorithms, hardware trends, and where quantum-classical hybrid systems create real near-term value.
Cybersecurity
Threat modelling and hardening for telecom infrastructure — from the RAN to the core, against today's and tomorrow's threats.
AI Security
Assessing risk in AI-enabled network functions and pipelines — model integrity, data exposure, and adversarial resilience.
Trust Layer
Designing the verification and crypto-agility layer that lets networks prove integrity across 5G, AI, and quantum-era systems.
WHY WORK WITH ME
Rare overlap. Real deployments.
CROSS-DOMAIN
Telecom + Quantum, together
Most people specialise in one. I work the physical/packet layers of 5G and the emerging quantum stack — useful when the two start to intersect, from quantum-safe signal processing to next-gen timing.
HANDS-ON
Built for production, not slides
Every core network engagement I take on has to survive real traffic, real SLAs, and real operators — not just a lab demo.
COMMUNICATION
I can explain what I build
The blog exists because complex systems are only useful if someone else can understand and maintain them. I write the way I'd want a handover doc written.
INSIGHTS & RESEARCH
Notes on 5G, UPF, quantum computing & the AI trust layer.
Field notes and research across the core network, security, and quantum stack — free from vendor influence.
SELECTED WORK
Projects & case studies.
01
5G CORE · UPF
UPF Deployment for a Tier-1 Telecom Operator
Designed and tuned the User Plane Function for a multi-region 5G core rollout, cutting median latency and validating throughput under peak load.
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02
QUANTUM COMPUTING
Quantum-Safe Signal Processing Pilot
Prototyped a post-quantum approach to protecting timing and signalling data against future cryptographic threats.
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03
NETWORK ARCHITECTURE
Network Slicing Architecture for Private 5G
Defined slice isolation, QoS policy, and orchestration for an enterprise private-5G deployment.
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ABOUT
Rajesh Mhatre
I'm a telecom engineer specialising in 5G core networks and the User Plane Function (UPF), with an active research interest in quantum computing. My work sits at the point where infrastructure has to be reliable today and ready for what's coming next.
Outside of client and deployment work, I write about both fields on this site — partly to document what I'm learning, and partly because the telecom and quantum communities rarely talk to each other, and I think that's a mistake.
NOW
Consultant — 5G Core & UPF
Advising operators and vendors on core network architecture and quantum-readiness.
2021
Began Quantum Computing Research
Started exploring quantum algorithms and their intersection with telecom infrastructure.
2017
5G Core Network Engineer
Focused on UPF performance, network slicing, and core deployment at scale.
GET IN TOUCH
Let's talk 5G, UPF, or quantum.
Open to consulting engagements, speaking, and interesting research collaborations.