Blake Grosvenor
London,United Kingdom
Summary
Results-driven Network Security Engineer with 5+ years of experience designing, securing, optimizing and managing enterprise-scale network infrastructure across multi-site environments.
Overview
6
6
years of professional experience
2
2
years of post-secondary education
Work history
Network Security Engineer
Foxtons
2024.06 - 2026.02
- Manage and secure enterprise network infrastructure across 60+ branch locations and two data centres, ensuring high availability, resilience, and performance.
- Lead a company-wide MPLS renewal and WAN refresh programme, coordinating vendors, reviewing circuit design, optimising bandwidth allocation, and overseeing migration planning across all sites.
- Played a key role in the greenfield build of a new enterprise data centre, delivering core network architecture, firewall deployment, HA configurations, and secure connectivity design.
- Own day-to-day BAU operations of perimeter firewalls, including policy management, rule reviews, firmware upgrades, patching, and security incident response.
- Lead administration of Cisco Secure Access for remote user protection, and zero-trust controls.
- Manage the companies NAC (802.1X, NAC, device profiling) to enforce secure network authentication across wired and wireless infrastructure.
- Oversee network monitoring and configuration compliance using SolarWinds (NCM & NPM), improving visibility, governance, and proactive fault resolution.
- Play a key role in integrating newly acquired businesses, delivering end-to-end network design, physical deployment, firewall configuration, security hardening, and comprehensive technical documentation.
- Act as a third line for complex network and security incidents, minimizing downtime and protecting business continuity.
- Act as a key mentor to junior engineers, providing technical guidance, hands-on training, and knowledge sharing to support their professional development.
Network Security Engineer
Seccom Global
Sydney, Australia
2020.01 - 2024.01
- Operated in a 24/7 high-demand SOC/NOC environment, delivering Tier 2 support for network security operations and incident response.
- Managed and maintained a fleet of 2,500+ network devices, ensuring compliance, proactive security tuning, and full lifecycle resolution of security incidents.
- Oversaw a class 1 government customer, providing high-level network security support and ensuring SLA adherence.
- Utilized Fortinet (FortiManager, FortiAnalyzer) for deployments, configuration management, and monitoring, alongside Juniper and SolarWinds to ensure secure and compliant operations in a multi enterprise partnership sales model.
- Collaborated with national ISPs and government agencies to coordinate incident response and leverage advanced network security solutions to mitigate emerging threats.
- Customer-facing in pre-sales support and second engineer capacity, assisting the lead engineer on Major SDWAN deployment projects in the final six months of tenure.
Education
Bachelor of Commerce -
University of Wollongong
2016.01 - 2018.01
Skills
- Cisco
- FortiGate
- Palo Alto
- Juniper
- SolarWinds
- F5
- Checkpoint
- Sophos
- VMware
- AWS
- Wintel
Affiliations
- Rock Climbing, Canyoning, Scuba Diving, Kite Flying Enthusiast, Bowling, Traveling
Timeline
Network Security Engineer
Foxtons
2024.06 - 2026.02
Network Security Engineer
Seccom Global
2020.01 - 2024.01
Bachelor of Commerce -
University of Wollongong
2016.01 - 2018.01