Infrastructure Security Engineer

This range is provided by La Fosse. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Remote (with travel to Oxford or Nuneaton for team meetings).

We're looking for a hands-on Senior Infrastructure Security Engineer to join a growing Infrastructure & Security team, and the chance to be one of the first in a new security remit. You’ll be reporting into the new Head of Infrastructure Security, playing a key role in building and securing the organisation’s group-wide infrastructure estate.

You’ll be the go-to engineer for securing core infrastructure services, working across network, cloud, and platform environments to keep systems protected while enabling the business to run smoothly.

• Implementing and maintaining security controls across network, cloud, endpoints, and core infrastructure
• Owning key technologies like firewalls, SIEM, EDR, VPN, NAC, and vulnerability scanners
• Driving vulnerability management and hardening across the estate
• Supporting and responding to security incidents across infrastructure services
• Embedding security into infrastructure changes (firewall rules, access reviews, cloud deployments)
• Working with engineering teams to improve the security posture of Azure and AWS platforms
• Writing and maintaining runbooks, standards, and procedures to raise security maturity

• Strong background in infrastructure or network security within a complex enterprise environment
• Solid knowledge of:
• Firewalls, VPN, IDS/IPS, network security controls
• Endpoint security (EDR, anti-malware, DLP)
• SIEM tools (e.g. Splunk, Sentinel)
• Vulnerability management (e.g. Qualys, Tenable)
• Cloud (Azure and/or AWS)
• Hands-on experience supporting or responding to security incidents
• Familiarity with frameworks such as ISO 27001, NIST, CIS, Cyber Essentials
• Great documentation, troubleshooting, and communication skills
• Play a central role in strengthening security across a multi-industry group (rail, logistics, manufacturing, tech, aerospace)
• Report into a supportive leadership team who’ll help you grow your career
• Competitive package with bonus, car allowance, and expensed travel
• Step into a role where you can directly shape security across the group’s infrastructure

Apply now to take ownership of security engineering and be part of a team driving major change.

• Mid-Senior level

• Full-time

• Information Technology

• Staffing and Recruiting