Network Security Engineering · UK LTD · London
HKG Services LTD provides specialist network security engineering consultancy for enterprise, government, and critical infrastructure. Every engagement is led hands-on by a senior practitioner with 15+ years of real-world delivery — from zero-trust architecture to SD-WAN, SASE, and cloud security at scale.
What We Deliver
From zero-trust architecture to SD-WAN and SASE integration — hands-on technical delivery across the full network security stack. No account managers, no junior hand-offs.
Design and implementation of ZTNA frameworks to replace legacy VPN perimeters with identity-based access control. Micro-segmentation across hybrid environments, east-west traffic isolation, and measurable reduction of lateral attack surface.
Deep-level policy rationalisation, configuration audit, and hardening across Palo Alto (FMC/FTD), Cisco ASA, Fortinet FortiGate, and Checkpoint. AlgoSec-assisted rule-base management for complex multi-vendor environments.
End-to-end SD-WAN architecture using Cisco vManage and Fortinet. Policy standardisation, SASE integration (Zscaler, Cisco Umbrella, Cloudflare DNS), and seamless migration from legacy WAN — including POC and LLD delivery.
Scalable VPN solutions across the full stack — GETVPN, DMVPN, IKEv2/IKEv1, Anyconnect, WireGuard, and IPSec. Palo Alto GlobalProtect and Prisma Access configuration for secure hybrid and remote workforces.
Secure cloud migration across Azure and AWS — VNets, NSGs, VPCs, hybrid connectivity, and Prisma Access integration. Hands-on delivery across large-scale data centre decommissioning and multi-cloud transitions.
Python-based orchestration, Ansible configuration management, and CI/CD pipeline integration. Security compliance auditing, gold-build enforcement, and automated provisioning — reducing deployment timelines significantly.
Enterprise wireless design and deployment via Aruba (Mobility Controllers, ClearPass, Airwave) and Cisco Meraki. MAC, certificate, and RADIUS-based 802.1x authentication with robust network access control policy.
Low and high-level design authoring, peer review, and solution assurance for complex network programmes. Experienced as Solution Design Authority on major national programmes. SOC2 and PCI compliance documentation.
Why HKG Services
We're not a reseller, a managed service, or a generalist IT firm. HKG Services LTD is a specialist engineering consultancy — every engagement is delivered by a senior practitioner who has spent 15 years inside complex, high-stakes network environments.
No account managers between you and the work. The person you speak to is the person who designs, configures, and delivers. Direct access to senior-level thinking from day one.
Hands-on experience across Palo Alto, Cisco, Fortinet, Checkpoint, Juniper, Aruba, and more. We work with your existing stack — not just the vendors we're incentivised to push.
Proven delivery across complex, regulated, and large-scale environments — defence, critical infrastructure, healthcare, and global telecoms. We understand compliance, documentation, and programme delivery.
Technical Stack
Hands-on depth across security platforms, routing protocols, cloud networking, and automation tooling — built over 15 years of real-world delivery.
Open Tool · Built by HKG Services LTD
GridWire is a free, no-account reference platform built by our engineers because the existing tools were slow, cluttered, or paywalled. Used by network professionals worldwide.
Instant subnet calculation, CIDR reference, firewall cheat sheets, VPN protocol guides, full port database, BGP reference, SSL/TLS toolkit, browser-based IPAM, and MTU/MSS calculator — all on a single fast platform. Built by a practising network security engineer, for network engineers.
Launch GridWire →Get In Touch
Whether you need hands-on consultancy, a firewall audit, zero-trust design, or a solution design authority for a major programme — reach out. You'll speak directly with the engineer.
A UK registered limited company delivering senior network security engineering consultancy. SC cleared, vendor certified, and experienced across government, defence, telecoms, and enterprise sectors.