Network Security Professional

BT Security; Sheffield; On-site; GBP 40,000 - 60,000; Full time

Job summary

BT Security is seeking a skilled professional to provide expert technical support in network security deployments across the UK. The role involves incident management, security advice, and integration testing on new services while maintaining customer trust and satisfaction. Successful candidates will possess strong knowledge of security protocols and programming languages essential for safeguarding information in a flexible and inclusive workplace.

Benefits

Flexible working arrangements encouraged

Commitment to diversity and inclusion

Qualifications

• Expertise in network security platforms or programs required.
• Knowledge of TCP/IP and OSI model necessary.
• Experience in Security Operations from a 2nd Line perspective expected.

Responsibilities

• Provide security advice and remediation to BT Lines of Business.
• Complete and own integration testing on new products.
• Safeguard sensitive customer information.

Skills

Expertise in network security platforms

Knowledge of TCP/IP & OSI model

Best engineering practices

Tools

CompTIA Network+ & Security+

Fortinet

Cisco ASA & FirePower

Palo Alto

Azure/AWS

Python

Go

Bash

Linux/Unix OS

Windows OS

Job description

Recruiter: Jayson Coley-Wynters

Career Grade: E

Location: Hatfield, Sheffield & Belfast

PLEASE NOTE: THIS ROLE REQUIRES SECURITY CLEARANCE - TO QUALIFY MINIMUM 5 YEARS UK WORKING HISTORY

Job Description

Why this job matters

Our purpose is to use the power of communication to make a better world. For each other, for our customers, for society and our communities.

This role exists to provide specialist technical support on complex network security and cyber security deployments for any and all of our UK contracts. Building intermate working relationships and trust through effective communication and meeting expectations and deadlines is key. Liaising with customer representatives or vendors and directing other support staff where appropriate will form part of the role.

Additionally, the support of new products and services is an important part of keeping pace with the industry and customer requirements and allows BT to maintain market position as a key supplier of services. The role holder will therefore be expected to provide support in this area, working with confidence and initiative and applying excellent self-management to promote successful outcomes.

What you'll be doing

• Develop and deliver industry redefining platforms and enhance your own skills.
• Be a cyber incident decision maker, ensuring mitigation controls and incident response are appropriate.
• Provide security advice and remediation to Lines of Business within BT and external customers.
• Complete and own integration testing on new products and services, producing all relevant supporting documentation.
• Support team leader and line manager positively.
• Safeguard sensitive customer information at all times to maintain trust.

The skills you'll need

• Hands-on engineer with expertise in at least one of the following platforms or programmes: CompTIA Network+ & Security+, Fortinet, Cisco ASA & FirePower, Palo Alto, Azure/AWS, Python, Go, Bash, Native Cloud Security, Linux/Unix OS, Windows OS.
• Knowledge of TCP/IP & OSI model and data network operations.
• Best engineering practices and continuous delivery understanding.
• Maintain appropriate security clearances (MPS, NPPV3 & SC clearances).

Experience you would be expected to have

Experience in Security Operations from a 2nd Line perspective, supporting team operations and ensuring customer satisfaction. Strong knowledge of Networks and Network Security.

BT has a heritage of over 175 years and is a global leader in secure connectivity and collaboration platforms for businesses of all sizes, including government departments and startups. We value diversity and inclusion, champion digital inclusion, and aim to make a positive societal impact.

Additional Notes

Roles are listed as full-time, but flexible working arrangements are encouraged. We offer reasonable adjustments for the selection process. If you don't meet every requirement, please apply — we value diverse experiences and backgrounds.