IT Infrastructure Specialist

Recruiter:
Krystle James

Career Grade: D

Internal Closing Date: 05/01/26

#BTSEC
25

Due to the sensitive nature of this role, you will be required to undergo DV (Developed Vetting) level Security Clearance. An allowance of £5k per annum may be payable monthly while you hold this DV and continue to work in a role that requires that level of security clearance. The terms of this allowance will be made available if you are successful in being recruited into this role.

Security isn’t always the first thing that comes to mind when you think of BT, but when it comes to keeping everyone safely connected, We Are The Protectors. We deal with thousands of cyber-attacks every day, so that millions of people can safely go about their daily lives and run their businesses. We deliver vital work at scale, with real breadth and impact.

We connect for good.

You'll be joining a specialist security team that is a trusted partner to governments worldwide, protecting critical national infrastructure and committed to the safety and security of our nation and global communities. Our mission focused work is innovative, inspiring and technologically challenging in a way that makes every day different and stimulating. We provide the opportunity to work on rare projects, with exciting tools and brilliant people.

Everyone has access to unparalleled professional and personal development opportunities and your contribution is always valued.

This job role can be based near Hertford or Cheltenham. Commutable within 30 to 60 minutes. Onsite (5 days office based). Monday-Friday (37.5 hours per week). You must be able to obtain DV clearance in order to start this role. You will need to have lived in the UK for 10 years+ to obtain this.

• Be hands on in the design, build, development, integration, testing and maintenance of IT infrastructure to provide a robust customer on‑premise platform.
• Identifying and implementing design changes, improvements and updates required to keep products within supportability life cycles.
• Utilising your experience in physical and virtual host infrastructures to ensure a resilient platform for hosted applications.
• Producing high and low level design documentation and build guides.
• Executing against the project technical roadmap and delivery plan.
• Undertaking self‑development to broaden knowledge in new technologies outside current skillsets.

• Hands on experience in the design, build, development, integration, testing and maintenance of IT infrastructure.
• Implemented hardware and operating systems to hardened build standards and used vulnerability and compliance scanning tools.
• VMware infrastructure design, implementation and deployment skills.
• Advanced knowledge of Windows Server & Desktop including specification, operating system builds, deployment toolsets (such as MDT, SCCM), OS version uplifts and migration.

• Experience with SAN storage solutions and networking.
• IP network design including Juniper, Cisco configuration.
• Experience in use of Advanced Microsoft Active Directory including Group Policy definition and deployment, including OS and application integration.
• Integration with other supporting systems such as monitoring, patch update and Anti‑Virus.
• PKI infrastructure design, build & deployment.
• MS SQL database skills including design, deployment, high availability, version migration.
• Ability to perform SAN storage implementation, configuration and systems upgrade.
• Built & deployed Network and Infrastructure management & monitoring tools with strong knowledge of SNMP, syslog & IP networking, with OS and network troubleshooting skills.

• Competitive salary.
• 10% on target bonus (Depending on country based).
• BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%.
• On‑call allowance (Depending on role requirements).
• 25 days annual leave (not including bank holidays), increasing with service.
• Huge range of flexible benefits including cycle to work, healthcare, season ticket loan.
• World‑class training and development opportunities.
• From January 2025, equal family leave: receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the…