Location: Croydon (Remote-first, with occasional on-site attendance) Rate: Up to £550 per day (Umbrella, Inside IR35) Clearance: Active SC with a UK government agency, used within the last 6 months (essential)Duration: 6 months initial Role Summary We are seeking an experienced Senior DevOps Engineer with strong expertise in networking, Fortinet, and Cisco Firewalls. You will play a key role in supporting secure, resilient platform operations across a government environment. This position is predominantly remote, with only infrequent visits to the Croydon office as required. Key ResponsibilitiesProvide hands-on DevOps support with a focus on network engineering and Firewall technologies.Configure, manage, and optimise Fortinet and Cisco Firewall solutions.Support secure infrastructure operations within a government grade environment.Collaborate with technical teams to ensure systems remain secure, stable, and high performing.Required ExperienceStrong background in DevOps engineering.Deep knowledge of networking principles, Firewalls, and secure infrastructure.Proven experience with Fortinet and Cisco Firewall technologies.Active SC Clearance with recent usage (within the past 6 months).Ability to operate in a high security, mission critical environment.Applicants must have SC clearance