Technical Lead  ·  Glasgow, Scotland

Steven Johnston

Leading the architecture and delivery of complex enterprise infrastructure — from first principles to production.

CCNP Routing & Switching
CCNP Collaboration
SC Security Cleared
01

About

Owning end-to-end technical design, setting standards across concurrent delivery programmes, and leading complex multi-vendor deployments for enterprise and public sector clients. I'm designing multi-region cloud architectures, building AI agents that automate network operations, and leading teams of engineers through some of the most complex infrastructure programmes in Scotland.

The arc from hands on engineer to solutions architect to technical leader gives me something that's genuinely hard to find: the ability to operate credibly at every layer, from a routing table to a boardroom conversation about strategic direction.

SC cleared and operating at Lead Architect level, I bring technical expertise across networking, security, cloud, and AI-driven automation, alongside the leadership capability to drive programmes from initial concept through to production. My work spans global enterprise and public sector environments, including critical national infrastructure and key clients such as the Scottish Courts and Tribunals Service, Scottish Prisons Service and the Crown Office.

Over the past two years I've been at the forefront of integrating agentic AI into infrastructure operations, designing and deploying agentic automation platforms that reduce manual effort, accelerate delivery, and surface intelligence that teams can act on. I believe the next generation of infrastructure leadership demands both architectural rigour and the ability to harness emerging technology responsibly.

Hybrid Cloud
  • Azure Virtual WAN
  • ExpressRoute
  • Hybrid Connectivity
  • NVA Firewalls
Security
  • ZTNA
  • SASE
  • Palo Alto
  • Cisco
AI
  • Agentic Workflows
  • LLM API's
  • Network Automation
  • AI Tooling
Technical Lead
  • Team of 7 Consultants
  • Programme Delivery
  • Solution Architecture
  • Technical Standards
02

Expertise

Infrastructure

  • Network Architecture & Design
  • HLD/LLD Documentation
  • WAN and SD-WAN Design
  • BGP & OSPF Routing
  • Campus LAN / WAN Design
  • LAN Switching

Security

  • Cisco, Palo Alto & Fortinet Firewalls
  • Cisco ISE & Zero Trust
  • VPN & Remote Access
  • Umbrella & DUO
  • Cisco Secure Access / SASE
  • Security Architecture

Cloud & Hybrid

  • Azure Networking/transit hub design
  • Hybrid Cloud Connectivity
  • ExpressRoute & Private Connectivity
  • Cisco, Palo Alto NVA Firewalls
  • Cloud Security Architecture
  • Azure Virtual WAN

Collaboration

  • Cisco Webex & MS Teams
  • SIP & CUBE Integration
  • Unified Communications
  • Cisco CUCM
  • Enterprise Voice Solutions

Datacentre

  • Cisco UCS
  • VMware
  • Cisco Nexus
  • DC Design & Architecture
  • Nutanix

Automation & Dev

  • Python/Terraform/Ansible
  • Agentic Network Automation
  • API's and Web Services
  • AI Workflows & Integration
  • Docker & Containerisation
03

Career

2024 — Present

Technical Lead

Sword Group (formerly Ping Network Solutions)

  • Designed and delivered a resilient, multi-region Cisco ISE, Palo Alto Firewall, Cisco SDWAN deployment in Azure, establishing zero-trust network access for critical national infrastructure client.
  • Architected a secure cloud based (Azure) AI platform to automate network operations workflows, integrating LLM-based tooling with enterprise infrastructure to reduce manual effort and accelerate incident response
  • Manage and mentor a team of 7 consultants, owning resource planning, technical direction, and professional development across concurrent delivery programmes
  • Define solution architecture and set technical standards across projects, ensuring consistency, quality, and alignment with client outcomes
  • Directed a multi-datacentre & offshore transformation programme incorporating SD-WAN, Cisco Nexus datacenter switching, and Palo Alto Networks edge security — delivered on time and within budget
  • Delivered campus-wide firewall and LAN refresh programmes across multiple Scottish public sector clients including colleges, universities, and government bodies, driving security uplift and operational resilience
  • Championed DevOps practices within the team — introducing CI/CD pipelines, infrastructure-as-code, and automated testing to accelerate delivery
2019 — 2024

Consultant Engineer

Ping Network Solutions

  • Designed and implemented end-to-end solutions spanning networking, security, and collaboration technologies
  • Led a multi-site migration from legacy BGP/IPsec VPN to a modern Cisco SD-WAN architecture
  • Designed and delivered Cisco SD-WAN with an active/active Palo Alto Networks transit hub in Azure, enabling resilient hybrid connectivity
  • Managed the migration of 2,000 users from Cisco CUCM to Microsoft Teams for a major Scottish university
  • Led a datacentre refresh introducing modern Cisco Nexus switching for a prestigious Glasgow school
  • Designed and built a bespoke hosted management and monitoring platform across dual datacentres for an energy sector client
2015 — 2019

Principal Engineer

Virgin Media Business

  • Provided technical leadership and consultation for large public sector accounts
  • Delivered a comprehensive LAN/WAN and datacentre redesign using Cisco Nexus 9K for the Scottish Courts Service
  • Led a datacentre refresh incorporating Clustered Cisco UCS 5508 compute nodes for the Scottish Prisons Service
  • Designed and implemented a secure video conferencing system for the Scottish Prisons Service, connecting inmates, solicitors, police, and court personnel
  • Delivered multiple large infrastructure projects including LAN refreshes, firewall migrations, and SIP integrations
2007 — 2015

Senior Network Engineer

Jabil

  • Designed and implemented network, security, and voice solutions for European manufacturing facilities
  • Led a European-wide deployment of a global LAN, WAN, and Cisco telephony refresh across 112 sites
  • Delivered two $3M datacentre builds in London and Budapest
  • Served as technical lead for the acquisition integration of a competitor facility in the Netherlands
2003 — 2007

Network Engineer

Jabil

  • Managed the installation and support of converged data and voice networks across the European region
  • Designed bespoke routing and traffic engineering solutions using BGP and OSPF
  • Delivered telephony and wireless solutions across multiple European sites
  • Designed VPN solutions for third-party integrations and secure remote access
04

Credentials

Cisco Specialist Certifications  All valid through 2027

Data Centre Operations Collaboration Applications Call Control & Mobility Collaboration Cloud & Edge Collaboration Core Enterprise Advanced Infrastructure Enterprise Core CCNA