Network Security Specialist Jobs In UK - 6,222 Job Positions Available

1 – 20 of 6,222 jobs
DXC Technology jobs

Job Description: DXC Technology is committed to building diverse, inclusive teams. We welcome applications from all backgrounds and particularly encourage interest from women, underrepresented groups, and neurodivergent candidates. We offer reasonable adjustments throughout the hiring process

DXC Technology  27 days ago
CrowdStrike jobs

As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn’t changed — we’re here to stop breaches, and we’ve redefined modern security with the world’s

CrowdStrike  25 days ago
Colt Technology Services jobs

Colt provides network, voice and data centre services to thousands of businesses around the world, allowing them to focus on delivering their business goals instead of the underlying infrastructure. Why we need this role We are looking

Colt Technology Services  24 days ago
LSEG jobs

LSEG is seeking aSenior Penetration Tester to join our internal offensive security team. This role is hands-on and deeply technical, responsible for planning and executing penetration tests across a wide range of systems and applications. The successful

LSEG  24 days ago
Phoenix Software jobs

Overview of the role Phoenix is a leading UK IT solutions and managed service provider, with a deep specialism in the public sector. We work with organisations across government, healthcare, defence, public safety, education, housing, and

Phoenix Software  22 days ago
Expleo jobs

Overview Expleo is a trusted partner for end-to-end, integrated engineering, quality services, and management consulting for digital transformation. We help businesses harness technological change to successfully deliver innovation, improve resilience and support secure, regulated and operationally

Expleo  16 days ago
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Thales jobs

Location: Crawley, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a

Thales  11 days ago
G-Research jobs

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution

G-Research  10 days ago
G-Research jobs

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world-class researchers and engineers in an environment that values deep exploration and methodical execution

G-Research  10 days ago
Giacom jobs

Giacom are the only provider of Comms, Cloud, Hardware and Billing all through one platform. Our platform connects technology resellers and service providers to the best IT, Comms and Cloud products and services so they can

Giacom  9 days ago
Crisis24 jobs

Who We Are Looking For The Security Operations Specialist provides general and emergency assistance to clients worldwide, using established operational protocols and client-focused procedures. In this role, you will develop your understanding of global security while supporting clients through

Crisis24  9 days ago
GAMMA jobs

A bit about us At Gamma we provide voice, data, and mobile solutions to businesses across the UK, Germany, Spain, and the Benelux region. Our people are at the heart of everything we do. When you

GAMMA  8 days ago
Barclays jobs

Job Description Purpose of the role To identify potential vulnerabilities within the banks IT systems using penetration testing tools and techniques to ensure security of computer systems, applications, servers, and networks. Accountabilities Development and execution of assessments, audits,

Barclays  4 days ago
BAE Systems jobs

FCAS Security Lead - Strategic Physical Infrastructure Specialist-00137628 Description Job Title: FCAS Security Lead - Strategic Physical Infrastructure Specialist Location: Warton - On Site, 5 days per week Salary: £59,491+ (DOE) Who we are: Join BAE Systems and you’ll be

BAE Systems  4 days ago
BAE Systems jobs

FCAS Specialist Facility Security Professional -00137626 Description Job Title: FCAS Specialist Facility Security Professional Location: Warton- On Site, 5 days per week Salary: £51,772+ (DOE) Who we are: Join BAE Systems and you’ll be part of something bigger. As a

BAE Systems  4 days ago
Lloyds Banking Group jobs

End DateWednesday 16 September 2026 Salary Range£72,702 - £80,780 We support flexible working – click here for more information on flexible working options Flexible Working OptionsHybrid Working, Job Share Job Description Summary. Job Description JOB TITLE:

Lloyds Banking Group  3 days ago
BT Group jobs

Job Req ID: 61914 Posting Date: 20/08/2026 Function: Business Operations Location: London, Sheffield, Belfast, Manchester Salary: Competitive + Benefits About the role Our purpose is to use the power of communication to make a better world.

BT Group  1 day ago
SNC-Lavalin jobs

Job Description Overview Leading the edge of transformation. You might know us for the great work we do across our wide variety of projects. Were proud to say its thanks to our peoples diversity of thought,

SNC-Lavalin  28 days ago
Capita jobs

Company Description Discover a new kind of career in healthcare as a functional specialist. Working in healthcare, and looking for a change? If you’re a nurse (RMN, RNLD, RGN), occupational therapist, physiotherapist or paramedic, you could use

Capita  28 days ago
Capita jobs

Company Description Discover a new kind of career in healthcare as a Clinical Assessor / Functional Specialist. We have opportunities based at our Birmingham Clinic - 50 Summer Hill Road, Birmingham B1 3RB Working in healthcare, and

Capita  28 days ago

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