Job Description
Infrastructure Engineering Specialist
Req Id:  58062
Posting Start Date:  5/11/26
Job Function:  Security
Division:  UK Business
Job Location:  GBR Cheltenham TE, GBR-Manchester-Deansgate
Advertised Salary:  Competitive

Job Req ID: 58062

Posting Date: 11th May 2026

Function: Security 

Location: Cheltenham or Manchester

Salary: Competitive with great benefits 

Due to the sensitive nature of this role, you will be required to undergo DV (Developed Vetting) level Security Clearance (https://www.gov.uk/government/publications/united-kingdom-security-vetting-clearance-levels/national-security-vetting-clearance-levels). 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.

Why this job matters

We are looking for an experienced Infrastructure Engineer to join a growing multi-disciplined Engineering team that builds, supports, and delivers transformations for a critical cybersecurity platform. 

In your role you’ll use your technical skills to design, develop, test, monitor and support the infrastructure that forms the foundations of our vital services. You’ll be working on the whole platform stack, up from the bare metal up to customer facing applications. Automation and monitoring will be key requirements to effectively manage the fleet of servers. Joining a growing project, you’ll set the technology choices and ensure the team is following best practices. 

In this ever-changing environment, you’ll work on interesting and challenging problems, that stretch you and provide the opportunity to use the latest technologies & industry best practices. 

You will need to be eligible to obtain DV Security Clearance before starting this role. You will need to have lived in the UK for 10+ years to be eligible. Additionally, this role is 5 days per week onsite. 

What you’ll be doing

  • Work with customers to understand their technical needs
  • Set the choices of software and hardware.
  • Design, build and deploy core infrastructure ensuring the system is scalable and resilient
  • Ensure systems are automated, including system build and common maintenance functions
  • Ensure best practices are followed for system auditing, patching and updates.
  • Engage with and support users of the Platform
  • Identify and contribute to the improvement of inefficient ways of working
  • Work with junior team members to develop their skills and develop training plans
  • Actively contribute and engage in knowledge sharing activities 

Essential Skills

  • Linux system administration
  • Kubernetes system administration (setting up, configuring and maintaining clusters)
  • Kubernetes application development (Deploying applications, optimising application resilience & troubleshooting deployments)
  • Developed and used Helm charts, used Infrastucture as Code tools such as ArgoCI or Fleet
  • Used system monitoring tools such as CheckMK, Prometheus, Grafana or Loki
  • Build and deployed Docker containers
  • Experience of Virtual Machines
  • Automated system deployment using tools such as Ansible, Puppet or Chef
  • Working in DevOps and Agile Teams. The team uses Atlassian Toolsets – Confluence, Jira and GitLab for Code Repos and Automated pipelines
  • Document system design decisions
  • Scripting using Bash or Python 

Desirable Skills

  • Familiar with the Elastic stack technologies
  • Kibana, constructing queries, dashboard or plugin creation.   
  • Elasticsearch, working with large datasets and use of API’s.   
  • Logstash, management, configuration, and improvements, extending with Plugins. 
  • Hardware setup and remote maintenance (iDRAC, IPMI)
  • Networking (e.g. Firewall configuration, DNS, LDAP)
  • Used Cloud Infrastructure and Services 

Our Package

Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life. You can design the package to suit you and your lifestyle. Your core benefits include:

  • 10% on target annual bonus
  • Access to an online private GP 24/7 for you and your immediate family 
  • Market-leading paid carers leave with up to 2 weeks off 
  • Equalised maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
  • Discounted EE and BT products, including mobile and broadband
  • Market leading Pension scheme – 5% from you and 10% from us
  • Holiday purchase scheme
  • You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.

Security is one of the fastest growing parts of our global organisation. We are protecting our networks from more than 6,500 cyber attacks each day, investing over £40m in research each year - and in employing nearly 3,000 people, we’re also the largest private cyber employer in the UK.  With incredible opportunities to learn, develop and grow your skills, we’ll invest in you, nurture your potential and shape your future – whatever your background or experience. 
 
In today’s world, safe and secure digital connections have never been more vital. You’ll be joining a global company operating at the forefront of the information age: BT employs 90,000 people in 180 countries. With huge scale, we’re capable of achieving great things, striving to be personal, simple, and brilliant for our customers whilst creating an inclusive working environment where people from all backgrounds can succeed. Play your part. Make a difference. We are the Protectors.