About
About Me
I’m Anthony Constant, a Systems & Network Integration Engineer with a First-Class BSc (Hons) in Computer Science (Networks). Over the last few years, I’ve worked across desktop support, systems engineering, and network integration — building, testing, and deploying infrastructure that keeps UK emergency services online and operational.
My focus has always been on solving real-world IT challenges where downtime isn’t an option. From configuring Cisco routers and FortiGate firewalls to automating repetitive workflows and leading seamless network migrations, my work combines deep technical expertise with a hands-on approach that delivers measurable results.
Outside of client work, I design tools, scripts, and network templates that save engineers hours of manual effort. These became the foundation of Constant Labs — a platform I built to share practical, battle-tested resources that help IT professionals troubleshoot faster, automate confidently, and raise the bar for infrastructure and operations.
Whether I’m supporting mission-critical networks or building something new for the community, my goal is always the same: to make systems more reliable, efficient, and ready for the future.
My Journey
Ambulance Trust Project
Led a mission-critical migration for the UK Ambulance Trust (POP), taking the project from planning to deployment. Designed and refined Cisco router configurations in a reference system (RefSys), reverse-engineered templates to ensure compliance, and verified live configurations before rollout.
Developed a custom automation tool to simplify config updates and eliminate manual errors.
Verified voice and data connectivity with functional testing, resolved issues quickly, and kept the project on schedule.
Produced weekly progress reports and coordinated with cross-functional teams to achieve a smooth, fully documented migration.
CE Migration Project
Deployed network changes across 100+ police control rooms nationwide as part of a small integration engineering team.
Validated router configurations with UK emergency services to minimise downtime and keep operations running smoothly.
Created a Python-based automation tool using regex and logic to apply bulk configuration changes safely, cutting hours of repetitive work and improving accuracy across rollouts.
Cisco ISE Migration Project
Migrated devices from Cisco ACS to Cisco ISE for multiple police control rooms, creating detailed step-by-step documentation.
Remotely onboarded routers, switches, and firewalls, resolving access issues and using out-of-band management where necessary.
Travelled on-site to configure legacy devices manually and contributed to one of the first successful live rollouts — later presenting results and lessons learned to the wider integration team.
Scottish Fire Project
Configured and deployed Cisco routers and FortiGate firewalls for the Scottish Fire control room migration.
Simulated real-world scenarios using test PCs and radios to verify end-to-end voice and data communication.
Created a PowerShell script to automate connectivity checks, reducing testing time significantly. Resolved a critical NAT misconfiguration, oversaw the migration, and ensured a smooth handover to a satisfied customer.
Stack Switch Upgrade Project
Worked as part of a 4-person team to perform IOS upgrades on stack switches across multiple Remote Control Sites (RCS).
Ran pre-upgrade traceroutes, carried out console-based upgrades during maintenance windows, and verified post-upgrade paths to maintain routing consistency.
DCS Project
Collaborated with UK emergency services to maintain and upgrade critical servers, ensuring system availability and reliability.
Commissioned and decommissioned systems, performed maintenance, and used trackers to plan and execute tasks with precision.
AC Electronics eCommerce Store
Founded and operated an independent electronics business on eBay, designing a custom landing page with HTML, CSS, and JavaScript, secured via Cloudflare DNS and SSL/TLS.
Managed end-to-end e-commerce operations, including product sourcing, logistics, optimization, and customer service — supported by QuickBooks for accounting and Subivi CRM for automation.
Achieved Top-rated Seller status with over 3,000 sales and 980+ positive feedback ratings, maintaining 5.0/5.0 delivery and communication scores.
Gained valuable experience in automation, online business management, and branding, later closing the store after meeting key business goals.
ABW Project
Worked in a 4-person team to deploy over 100 laptops and convert desks for the development department.
Used Agile methodology and Miro boards to plan, execute, and deliver the project on time with minimal disruption.
Penetration Test of a Computer System
Performed a grey-box pen test using Kali Linux, Nmap, and Metasploit; compiled results into a formal security report with mitigation steps.
JavaScript Paint Application
Built a browser-based paint app with HTML, CSS, and JavaScript, featuring colour selection, brush size control, and undo functionality — strengthening programming and testing skills.
AnthonyConstant.co.uk Platform
Originally launched in 2020 as anthonyc.co.uk, the site began as a simple portfolio for employers to explore my work and background.
By 2021, it evolved into anthonyconstant.co.uk — a full professional platform combining engineering insights, technical guides, and digital toolkits for IT professionals and students.
Inspired by others but built with my own twist, the platform now serves as a central hub for publishing my kits, lessons, and automation tools — all drawn from real-world projects and testing within my Reference System.
What started as a personal showcase has grown into a space where I share practical knowledge to help others in IT learn faster, work smarter, and progress with confidence.
Tactical Kit v1.2 is Live
Redesigned templates, smarter scripts with undo/redo, and a brand-new menu-driven launcher — built to make your workflow faster and easier.