Senior Infrastructure Security Engineer

AtkinsRéalis; Epsom; On-site; GBP 50,000 - 70,000; Full time

Job summary

A global engineering services firm in the UK is seeking a Senior Infrastructure Engineer to manage on-premises technologies and act as a Subject Matter Expert. The ideal candidate has background in firewall management, SIEM and SOAR platforms, and Microsoft 365 security. Key responsibilities include managing infrastructure technologies, troubleshooting networks, and collaborating on complex projects. This role offers a competitive salary and benefits, with opportunities for training and professional development, in a supportive and inclusive work environment.

Benefits

Competitive salary

Employee rewards

Flexible working arrangements

Training and professional development

Qualifications

• Years of experience in infrastructure or security engineering roles.
• Strong problem-solving mindset and ability to work unsupervised.

Responsibilities

• Manage and maintain on-premises infrastructure technologies.
• Collaborate with team members on complex projects while independently owning specific technical domains.
• Respond effectively under pressure in a fast-paced environment.

Skills

Firewall management (Check Point, Palo Alto preferred)

SIEM and SOAR platforms (Splunk SOAR, LogRhythm)

Vulnerability management (Tenable)

Network troubleshooting (Cisco desirable)

Microsoft 365 security stack (required)

PowerShell scripting

Excellent communication skills

Job description

A global engineering services firm in the UK is seeking a Senior Infrastructure Engineer to manage on-premises technologies and act as a Subject Matter Expert. The ideal candidate has background in firewall management, SIEM and SOAR platforms, and Microsoft 365 security. Key responsibilities include managing infrastructure technologies, troubleshooting networks, and collaborating on complex projects. This role offers a competitive salary and benefits, with opportunities for training and professional development, in a supportive and inclusive work environment.