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BT Group

Network & System Security Specialist

Hybrid

Martlesham heath, United kingdom

Full Time

15-11-2025

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Skills

Leadership Python Bash Jira Firewalls Ansible Prioritization Networking Training Linux Programming Project Management

Job Specifications

Recruiter: Djoice Bastos Silva

Hiring Manager: Rob Roovers

Career Grade: D

Internal Closing Date: TBC

This role can be based in Birmingham or Ipswich

At BT International, our purpose is to keep the world connected. As part of BT, we build on almost 180 years of innovation and expertise to deliver secure connectivity and digital services to some of the world’s leading multinational businesses and organisations. Our customers trust us to safeguard their data, drive their digital transformation and keep their businesses running. With colleagues on the ground across the world and supporting customers wherever they need to operate, BT International offers a truly global experience. Whether it’s about providing cloud connectivity, helping organisations collaborate, or enabling innovation in cybersecurity and digital services, you’ll be part of a team that shapes how businesses succeed in a world that is being transformed by AI. If you have the drive and ambition to make an impact on a global stage, BT International is where it happens.

About This Role – Cyber Security Operational Engineer.

Systems, Security & Tooling Team was formed as a progressive operational support team towards the convergence of multiple Global domains across BT. We pride ourselves on providing expert third line support to an extensive range of services; ensuring the required levels of availability are maintained. The team is widely recognised for getting things done in a flexible manner, while making transformational (or tactical) improvements along the way. We do this by ensuring we have the right people to achieve our high ambitions.

We are seeking a passionate Cyber Security Operational Engineer, to join the unit in the role of Security Specialist. This role will require a mix of hands-on technical development and consultancy, whereby the successful candidate will be implementing technical requirements as well as focussing on policy, governance and management. The ideal candidate would assertively implement change and be comfortable mandating this to achieve success.

You will need to bring security awareness and strong security culture into the wider environment.

What You’ll Be Doing

Project Management
Knowledge sharing and train staff on security awareness
Work within defined team framework & security boundaries
Analyse Orgs & Roles to create access policies
Understand Technologies to assess vulnerabilities
Documenting internal/external processes for achieving optimal performance of computer systems through Wiki and maintaining Jira stories for prioritization of the workload
Technical Acumen: Apply your understanding of network principles to troubleshoot to assess security incidents and look at how you can optimize performance and enhance security across our infrastructure.
Incident Management and Resolution: Be prepared to support a 365x24/7 callout, providing third line technical resolution covering an extensive range of technologies.
Customer Focus: Be a technical expert who understands the end-to-end journey of our customers.
Growth and Development: As a technically talented expert you should enhance the brand of the team and support those around you to be accountable and perform at their best.

You'll Have The Following Skills & Experience

You must have

Technical Proficiency:
Networking principles (IP, tcp/udp/icmp, bgp,ospf,isis)
Firewalls and connectivity
Network services (dns, ntp, tacacs, radius,ldap)
Security Tools
Linux
Growth Mindset
Security culture/mindset
Say ‘no’ (and offer alternative solutions if possible)
Ability to support/lead audits (SOC2, ISO27001)
Programming Proficiency: Proficiency in at least one programming language, such as Bash, Python and/or Ansible.
Team Player

Desired

Experience in an ISP Environment: experience in a fast-paced ISP setting, managing and troubleshooting internal networks.
Continuous Application Deployments: Experience deploying new developments to live networks across a variety of infrastructure, including Virtual Machines, Routers, Switches, and Servers.

Benefits

Competitive salary
10% on target bonus
BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
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
Option to join BT Shares Saving schemes.
Discounted broadband, mobile and TV packages
Access to 100’s of retail discounts including the BT shop
On call allowances and overtime

Our leadership standards

Looking in:

Leading inclusively and SafelyI 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 customerI execute brilliantly on clear priorities that add value to our customers and the wider business.

Commercially savvy

I demonstrate strong commercial fo

About the Company

We’re one of the world’s leading communications services companies. At BT Group, the solutions we sell are integral to modern life. Our purpose is as simple as it is ambitious: we connect for good. There are no limits to what people can do when they connect. And as technology changes our world, connections are becoming even more important to everyday life. Today, that’s truer than ever. The connections we make are helping solve the world’s biggest challenges such as the global pandemic, climate change and cyber security. ... Know more