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Infrastructure Engineering Specialist

Job Req ID:  50180
Posting Date:  13 Aug 2025
Function:  Engineering
Unit:  Networks
Location: 

Endeavour Sheffield, Sheffield, United Kingdom

Salary:  Competitive

Available locations:  Will consider applications for people based out of Adastral Park-Ipswich or Manchester 

Working Style: 3 days a week in office, 2 days anywhere

Why this job matters

Your role as an Infrastructure Engineering Specialist in the Team is to build and ensure the performance, availability and security of Enterprise Cloud/Network Cloud & Legacy computing infrastructure.  Manage key stakeholder and customer relationships.  Provide operational excellence and leadership across NC, EC & legacy platforms.  Also play a critical role in managing complex Linux systems, as well as supporting and optimizing our infrastructure using technologies such as Ansible, Docker, Kubernetes, and Version Control Systems (VCS). This position requires strong technical expertise, excellent problem-solving skills, and a deep understanding of Linux operating systems. The Infrastructure Engineering Specialist independently works with Automation, Enterprise Systems Management (ESM) and Continuous Integration and Continuous Deployment (CICD) technologies, executing the vision of key technologies within the infrastructure landscape.

What you’ll be doing

  • Undertake routine daily activities and be accountable for system design, build, testing, validation, maintenance, and ongoing support of components within Network Cloud
  • Undertake the implementation of new and enhanced technology that aligns to customers’ strategic direction
  • Performance Optimization: Identify and address performance bottlenecks in the Linux environment, including system, application, and network components, to ensure optimal system efficiency.
  • System Security: Implement and maintain security measures and best practices to protect Linux servers from potential threats, vulnerabilities, and unauthorized access.
  • Automation and Configuration Management: Develop and maintain Ansible playbooks and automation scripts to streamline administrative tasks, configuration management, and deployment processes.
  • Containerization and Orchestration: Utilise containerisation and Kubernetes for orchestration to manage and scale containerised applications effectively.
  • Participate in technology lifecycle planning, including contributing to the development of the technology roadmaps and Platform Health Assessments.
  • Deliver the required documentation, knowledge transfer and training to successfully land new solutions into the support organisation.
  • Drive the implementation of core and cloud infrastructure security to manage risks and exposure.
  • Provide support for platform incidents
  • Mentor other Engineering professionals, helping to improve the team’s abilities by acting as a technical resource.
  • Continuously develop and share knowledge with the team on emerging trends and changes.

Skills you'll need

  • Strong knowledge of Linux configuration management and automation including bash, awk, sed and Ansible. 
  • Knowledge of Linux filesystems and storage including LVM, iSCSI, file access control, partitioning and RAID.
  • Strong Linux troubleshooting skills, covering both functional and performance issues. 
  • Strong knowledge of machine virtualisation, ideally KVM.
  • Skills in integration of third party, Opensource and self developed solutions
  • Understanding of the TSA and its implications to ways of working.
  • Good knowledge of Linux container technologies including Docker.
  • Familiarity with Kubernetes, VMware and OpenStack  
  • Good knowledge of Linux networking including bridging, routing, iptables and diagnostic tools such as tcpdump, ping etc. 
  • Ability to develop and maintain programs and scripts that aid in the operation and automation of tasks using various shell and scripting languages (Ansible/bash/ Python)
  • An understanding of code review and familiarity with tools like GitLab & Jenkins
  • Familiarity with enterprise grade server hardware (Dell/Cisco).
  • Familiarity with data centre networking technologies.
  • Familiarity with databases such as MySQL / PostgreSQL, particularly their storage requirements and backup models.
  • Ability to self-manage priorities and take a flexible approach to implementation.
  • Ability to produce technical focused documentation/guides for a variety of audiences.
  • General knowledge of change control and operational security processes and the importance of these processes to the integrity of services you operate.

Experience you'll have

  • Experience administering Linux servers in virtualized settings using automation tools.
  • Experience researching and learning new technologies.
  • Researching and resolving problems both independently and as part of a team.
  • Experience responding to high priority incidents.
  • Documenting designs and ideas. 
  • Actively participated in strategy setting sessions
  • Has been part of a team that moves quickly whilst hosting critical services.
  • Experience of using cloud platforms to develop solutions to problems

Our leadership standards

Looking in:
Leading inclusively and Safely
I inspire and build trust through self-awareness, honesty and integrity.
Owning outcomes
I take the right decisions that benefit the broader organisation.

Looking out:
Delivering for the customer
I execute brilliantly on clear priorities that add value to our customers and the wider business.
Commercially savvy
I demonstrate strong commercial focus, bringing an external perspective to decision-making.

Looking to the future:
Growth mindset
I experiment and identify opportunities for growth for both myself and the organisation.
Building for the future
I build diverse future-ready teams where all individuals can be at their best.

Benefits

  • 10% on target bonus
  • Tailored training and development opportunities to continue to build your career
  • 25 days annual leave (not including bank holidays), increasing with service
  • Life Assurance
  • Pension scheme - If you pay in a minimum of 5% of your pensionable salary every month we will pay in 10%
  • Direct Share scheme
  • Option to join the Healthcare Cash Plan or other benefits such as dental insurance, gym memberships etc.
  • 50% off EE mobile pay monthly or SIM only plans
  • Exclusive colleague discounts on our latest and greatest BT broadband packages BT TV, including TNT Sports and NOW entertainment
  • 30% discount for friends and family on EE mobile pay monthly and SIM only plans
  • Shared Parental leave - maximum amount of leave you can share with your partner is 50 weeks

About us

BT Group was the world’s first telco and our heritage in the sector is unrivalled.  As home to several of the UK’s most recognised and cherished brands – BT, EE, Openreach and Plusnet, we have always played a critical role in creating the future, and we have reached an inflection point in the transformation of our business. 
 
Over the next two years, we will complete the UK’s largest and most successful digital infrastructure project – connecting more than 25 million premises to full fibre broadband.  Together with our heavy investment in 5G, we play a central role in revolutionising how people connect with each other. 
 
While we are through the most capital-intensive phase of our fibre investment, meaning we can reward our shareholders for their commitment and patience, we are absolutely focused on how we organise ourselves in the best way to serve our customers in the years to come.  This includes radical simplification of systems, structures, and processes on a huge scale. Together with our application of AI and technology, we are on a path to creating the UK’s best telco, reimagining the customer experience and relationship with one of this country’s biggest infrastructure companies.  
 
Change on the scale we will all experience in the coming years is unprecedented.  BT Group is committed to being the driving force behind improving connectivity for millions and there has never been a more exciting time to join a company and leadership team with the skills, experience, creativity, and passion to take this company into a new era.

A FEW POINTS TO NOTE:

Although these roles are listed as full-time, if you’re a job share partnership, work reduced hours, or any other way of working flexibly, please still get in touch.

We will also offer reasonable adjustments for the selection process if required, so please do not hesitate to inform us.

DON'T MEET EVERY SINGLE REQUIREMENT?

Studies have shown that women and people who are disabled, LGBTQ+, neurodiverse or from ethnic minority backgrounds are less likely to apply for jobs unless they meet every single qualification and criteria. We're committed to building a diverse, inclusive, and authentic workplace where everyone can be their best, so if you're excited about this role but your past experience doesn't align perfectly with every requirement on the Job Description, please apply anyway - you may just be the right candidate for this or other roles in our wider team.

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