1 to 25 of 250 Senior Security Engineer Jobs in the UK

Senior Security Engineer

Hiring Organisation
Circle Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£600.00 - £700.00 per day
Senior Security Engineer 2.4 Months £700/Day Inside IR35 Locations Nationally Clearance: SC We are seeking a Senior Security Engineer for our Government client and can based at your nearest hub (they have offices nationally). All staff working for the client … expected to spend at least 40% of their working time in their nearest office. The Senior Security Engineer role is a 2.4 month contract paying between £600 - £700/Day Inside IR35. This role is inside IR35 - Due to the service of the role it will ...

Senior Application Security Engineer - DevSecOps & Cloud Security

Hiring Organisation
Additional Resources
Location
London, United Kingdom
Salary
£ 70 K
/AR/070467Job Type: Full-time, PermanentSalary: 70,000 - 80,000Location: LondonSector: ITPosted: 2026-07-02An opportunity has arisen for a Senior Application Security Engineer to join a well-established health research organisation and charity that supports large-scale medical research to improve disease prevention … diagnosis and treatment.As a Senior Application Security Engineer, you will play a key part in integrating security throughout the software development lifecycle, working alongside engineering and cloud teams to build, improve and maintain secure applications, platforms and deployment processes.This is not a traditional vulnerability management role ...

Senior Application Security Engineer / DevSecOps Engineer

Hiring Organisation
Additional Resources
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £90000/annum
have a background in Application Security, DevSecOps or Product Security, with hands-on experience embedding application security into the SDLC If so, this could be an opportunity worth considering. Join a well-established health research organisation and charity supporting large-scale medical research. You will work closely … with engineering, architecture and cloud teams to integrate security throughout the software development lifecycle. Microsoft Azure and KQL experience are essential, alongside relevant experience in CI/CD, Kubernetes, API security, security-as-code and security automation. This is a hands-on application security role ...

Senior Fire and Security Engineer

Hiring Organisation
Alecto Recruitment
Location
Edmonton, Cornwall, United Kingdom
Employment Type
Permanent
Salary
GBP 45,000 - 50,000 Annual
Senior Fire & Security Engineer Location: London & Surrounding Areas Salary: 45,000 Basic (Increase Following Successful Probation) + Overtime + Company Vehicle + Benefits The Company Alecto Recruitment are representing a well established and highly respected Fire & Security company who are continuing to grow due to ongoing … success and repeat business across London and the Home Counties. They are now looking to recruit an experienced Senior Fire & Security Engineer to join their established engineering team. This is an excellent opportunity for an engineer looking to join a company that genuinely invests ...

Senior Information Security Engineer

Hiring Organisation
Client Server
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Senior Information Security Engineer (Microsoft) London/WFH to £110k Are you a Senior Information Security Engineer with strong Microsoft security experience looking for an opportunity to make a genuine impact? You could be progressing your career working on a financial Tech … sophisticated technology. This is a relatively lean organisation with little hierarchy and genuine ownership, giving you the opportunity to work closely with the CISO, senior stakeholders, shape security strategy and make a visible difference. The business is also embracing AI across security and the wider organisation ...

Senior Security Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Staff Software Security Engineer Salary: Up to £135,000 + Benefits Location: London (Hybrid – 3 days per week in the office) We are currently looking for a Staff Software Security Engineer to join a fast-growing, innovative technology business operating at the forefront … data-driven products. This is an exciting opportunity to join a highly collaborative, engineering-led environment where security is viewed as a key enabler of innovation. Reporting to the Head of Engineering, the Staff Software Security Engineer will play a pivotal role in shaping the organisation ...

Senior Security Operations Engineer| Remote | Permanent | £60,000 - £80,000 + Benefits

Hiring Organisation
Curo Services
Location
United Kingdom
Employment Type
Permanent
Salary
GBP 60,000 - 80,000 Annual
Subject - Senior Security Operations Engineer| Remote | Permanent | £60,000 - £80,000 + Benefits Location: UK Remote (1 day per month in London) Salary: £60,000 - £80,000 + Benefits Looking for a security role where you can genuinely influence how things are done? We're partnered … with a growing cyber security business that is investing heavily in its Security Operations capability and is looking to hire a Senior Security Operations Engineer to join an established, UK-based remote team. This is more than a traditional SOC position. You'll be joining ...

Senior Application Security Engineer

Hiring Organisation
Tec Partners Recruitment Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £575/day
Title: Senior Application Security Engineer Location: London, UK Rate: £575 per day, Inside IR35 (dependent on experience) Duration: 6 months Tec Partners are working with a leading technology client, who are currently looking for an experienced Senior Application Security Engineer to work … customer assignment, providing subject matter expertise across code review, penetration testing, and secure development lifecycle initiatives. As a Senior Application Security Engineer, you will combine hands-on technical delivery with cross-team guidance, serving as the go-to expert on application security for internal development teams. ...

Senior Security Engineer - 12 Months FTC London

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Senior Security Engineer - 12 Months FTC London Senior Security Engineer - 12 Months FTC Join Pay.UK as a Senior Security Engineer and help protect the systems that support everyday payments across the UK. This role provides an opportunity to put advanced security engineering skills to work in a setting where trust, reliability, and clear standards are valued every day. You’ll work on security within the organisation that maintains and develops UK retail payment systems processing over 11 billion transactions worth over £10 trillion each year. We’re looking ...

Senior Security Engineer

Hiring Organisation
Taylor James Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£95,000
Senior Security Engineer, reporting to the IT Security Officer, you will work as part of a 3-person IT Security team. As the Senior Security Engineer, you should have at least 5 years security team leadership and project management. You will … implement and maintain robust security systems and protocols across the IT infrastructure. You will conduct risk assessments and vulnerability scans, mitigate vulnerabilities identified in penetration testing, and implement preventative measures to protect against cyber threats. You will monitor the security infrastructure and detect and respond to potential threats. ...

Senior Security Engineer

Hiring Organisation
Taylor James Resourcing
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £95,000 per annum
Senior Security Engineer, reporting to the IT Security Officer, you will work as part of a 3-person IT Security team. As the Senior Security Engineer, you should have at least 5 years security team leadership and project management. You will … implement and maintain robust security systems and protocols across the IT infrastructure. You will conduct risk assessments and vulnerability scans, mitigate vulnerabilities identified in penetration testing, and implement preventative measures to protect against cyber threats. You will monitor the security infrastructure and detect and respond to potential threats. ...

Senior Security Engineer - Detection Engineering - Welwyn Garden City, United Kingdom of Great Britain and Northern Ireland

Hiring Organisation
Tesco
Location
Welwyn Garden City, Hertfordshire, United Kingdom
Salary
£ 70 K
About the role: As a Senior Security Engineer in Tesco’s Detection Engineering team, you will lead the technical design of security-first infrastructure and deliver high-impact engineering outcomes that protect a global retail ecosystem serving millions of customers. You will translate complex threat … risk signals into resilient, testable, and automated security capabilities across Tesco’s technology landscape. This role blends deep engineering leadership with a customer-first mindset: preventing disruption, safeguarding trust, and raising the bar on engineering quality across cyber defence. You will also mentor engineers and help shape an innovation ...

Senior iOS Security Engineer – ProdSec

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Senior iOS Security Engineer (ProdSec) at iProov Senior iOS Security Engineer About iProov iProov provides science-based biometric solutions that enable the world’s most security-conscious organizations to streamline secure remote onboarding and authentication for digital and physical access. Our award-winning … against deepfakes and generative AI threats while ensuring effortless, scalable user experiences. Trusted by leading governments and enterprises, including the U.S. Department of Homeland Security, U.K. Home Office, GovTech Singapore, ING, and UBS, iProov sets the standard in biometric identity assurance. The Role Reports to: Head of Red Team ...

Senior Security Engineer

Hiring Organisation
ASSA ABLOY
Location
Olney, Buckinghamshire, United Kingdom
Salary
£ 70 K
Senior Security Engineer Do you have the ability to become the subject matter expert in implementation of security throughout the software delivery life cycle and a drive to grow your skills in a collaborative environment? Became a part of the ASSA ABLOY Global Solutions … Management business unit and enjoy a culture that empowers you to build a career you can be proud of.What you would do as our Senior Security EngineerAs a Senior Security Engineer you will be responsible for evolving the software development lifecycle to support a secure ...

Senior Security Engineer

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
Senior Security Engineer Department: IT Employment Type: Full Time Location: GBR Manchester Hardman Boulevard Reporting To: Danny Cooke Description The Cyber and Information Security Team play a critical role in supporting our internal business functions alongside our external customer commitments. NCC Group’s internal security team work to develop, introduce and maintain administrative, technical and physical security controls to continually improve the Group’s security. The Senior Security Engineer is primarily responsible for implementing, monitoring and maintaining security tools, technologies and configurations to ensure the confidentiality, integrity and availability ...

Senior Security Engineer, Amazon Security Automation

Hiring Organisation
Amazon
Location
London, United Kingdom
Salary
£ 80 K
Amazon, security is central to maintaining customer trust and delivering delightful customer experiences. Our organization is responsible for creating and maintaining a high bar for security across all of Amazon’s products and services. We offer talented security professionals the chance to accelerate their careers with opportunities … build experience in a wide variety of areas including cloud, devices, retail, entertainment, healthcare, operations, and physical stores.The NextGen Security Automation team is looking for a skilled and driven Senior Security Engineer to create autonomous security solutions that protect Amazon’s customers. As a security ...

Senior Security Engineer

Hiring Organisation
Taylor James Resourcing
Location
London, United Kingdom
Salary
£ 80 K
Date: 10 Apr 2026Sector: ITType: PermanentLocation: LondonSalary: 80000 - 95000 per annumEmail: duncan@taylorjamesresourcing.comRef: DB100426 Senior Security Engineer, reporting to the IT Security Officer, you will work as part of a 3-person IT Security team. As the Senior Security Engineer, you should … have at least 5 years security team leadership and project management. You will implement and maintain robust security systems and protocols across the IT infrastructure. You will conduct risk assessments and vulnerability scans, mitigate vulnerabilities identified in penetration testing, and implement preventative measures to protect against cyber threats. ...

Senior Security Innovation Engineer - Welwyn Garden City, United Kingdom of Great Britain and Northern Ireland

Hiring Organisation
Tesco
Location
Welwyn Garden City, Hertfordshire, United Kingdom
Salary
£ 70 K
About the role: As a Senior Security Engineer in Tesco’s Innovation Engineering team, you will pioneer next generation security capabilities that proactively protect a retail ecosystem serving millions of customers. You will combine deep engineering expertise with an innovation mindset to build production-grade solutions … that measurably reduce risk and improve resilience. You will also act as a technical leader, setting engineering direction, raising standards, and influencing across diverse security and technology teams with a customer-first focus. In the immediate term, you will focus on the needs of our Cyber Threat Intelligence ...

Senior Application Security Engineer

Hiring Organisation
Cloudsmith
Location
Belfast, Down, United Kingdom
Salary
£ 60 K
looking for a deeply technical Application Security Engineer to embed inside engineering and help secure Cloudsmith 2.0, the operating system for the modern software supply chain. The ideal person is a software engineer at heart who chose to specialize in security. You should be comfortable moving between … code, architecture, and security design.About CloudsmithCloudsmith is building the operating system for the modern software supply chain.We run a global, fully managed, multi-tenant SaaS platform that helps organizations, from startups to the Fortune 500, secure, govern, and distribute software artifacts at scale.Worldwide, our customers use Cloudsmith ...

Senior Application Security Engineer

Hiring Organisation
TripAdvisor
Location
London, United Kingdom
Salary
Confidential
subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork.We are looking for an experienced Senior Application Security Engineer to join our growing team at Tripadvisor Experiences. In this role, you will take a lead position in securing … applications that power our platform. As a Senior Engineer, you will design and implement advanced security measures, mentor junior engineers, and play a key role in ensuring the security of our products and infrastructure. This is a fantastic opportunity to influence our security practices ...

SC Cleared - Senior Security Engineer - Inside IR35

Hiring Organisation
Sanderson Government and Defence
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £700 per day + Benefits
Cleared - Senior Security Engineer - Inside IR35 Location: Bristol, Manchester, London Type : 3 days on-site Clearance: SC Cleared IR35: Inside Rate(s): £500 - £700 (Varying levels of Seniority) Length: Initial 6 months Sanderson G&D are seeking a number of Security Engineers for a range … Public Sector projects. As a Senior Security Engineer in our clients Cyber practice, you will need to be able to take end-to-end ownership of securing the systems they build; embedding security into delivery pipelines and building the tooling and automation that keep complex government ...

Senior Security Engineer

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Security Engineer - GenAI/AI Security Up to £110,000 + Excellent Benefits London - Hybrid | 1-2 days per week in the office Permanent The Opportunity Are you an experienced Security Engineer with a strong interest in Generative AI, LLM security and cyber engineering … looking for a talented Security Engineer to join an established technology environment, where you'll play a key role in designing and developing security solutions that protect AI and LLM-based applications from emerging threats, including adversarial attacks and prompt injection. This is an exciting opportunity ...

Senior Cyber Security Engineer

Hiring Organisation
Jobleads-UK
Location
Brampton, England, United Kingdom
Description Senior Cyber Security Engineer Location - Huntingdon UK Clearance Level - High - DV Developed Vetting UNLEASH YOUR POTENTIAL At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities … community. Our Mission, Vision, and Values guide the way we do business. Are your ready for your next challenge? We are seeking a Senior Cyber Security Engineer with a strong technical background to primarily support our customer site in Huntingdon, with occasional travel to London and other ...

Senior Cyber Security Engineer

Hiring Organisation
Circle Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£70,000
Senior Cyber Security Engineer - Up to £70K - Leeds (3 days a week in the office) This established international law firm in Leeds is looking for a Senior Cyber Security Engineer to take the reins on their security strategy. The Senior Cyber Security Engineer will be responsible for strengthening security across the firm, you'll protect client data and critical systems having excellent experience with Microsoft Sentinel, azure and Security Copilot. You will be in the office 3 days a week. What you'll bring: A minimum ...

Senior Security Engineer

Hiring Organisation
Mattermost
Location
United Kingdom
Salary
£ 70 K
Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. Trusted by the U.S. Department of War and Fortune 500s, our platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full … premises, cloud, and in air-gapped environments, enabling mission-critical workflows from the tactical edge to the enterprise HQ, where data sovereignty and operational security are non-negotiable.We are hiring a Senior Security Engineer to protect the people, infrastructure, and tooling that goes into building ...