51 to 75 of 82 Senior Security Engineer Jobs in the UK

the firm managed approximately US$122 billion on behalf of major pension funds, endowments, foundations, governments and other investors based in the U.S. and abroad.Position Overview:The Senior Security Engineer, reporting to the Director of Information Assurance, is responsible for cloud platform and DevOps security. This senior role will call upon the candidate's DevSecOps experience … to help Acadian Shift Left, injecting security directly into our Software Development Lifecycle and consistently governing our AWS Platform-as-a-Service (PaaS) infrastructure. We are looking for candidates with deep experience and understanding of continuous delivery, container security, SAST/DAST, secrets management, Identity and Access Management (IAM) governance, privilege management, encryption and key management, threat detection … logging, cloud infrastructure security and policy-as-code.What You'll Do: Assess Acadian's cloud IAAS environments for Indicators of Misconfiguration (IOMs) utilizing AWS built-in and third-party assessment tools. Utilizing tools like AWS Config, Security Hub, Inspector, Guardduty, and Crowdstrike Falcon, assess monitor and prioritize remediation of Cloud security vulnerabilities. Develop and maintain tools to More ❯

About the role: Shape the Future of Cyber Security at Holland & Barrett At Holland & Barrett, we're not just a leading health and wellness retailer—we're a digital-first business that places customer trust at the heart of everything we do. We're looking for a Senior Security Operations Engineer to join our growing Cyber … Security team and help us protect millions of customers across our digital and in-store platforms. If you're passionate about automation, cloud technology, and fast-paced problem-solving—and want your work to have a real impact—this could be the perfect role for you. Key Responsibilities Lead security incident response and threat detection efforts, prioritising the … protection of customer data and experience Build automated detection and remediation workflows using SOAR, SIEM, and scripting (Python, SQL) Apply deep cloud security knowledge (AWS, Azure) to secure ecommerce, mobile apps, APIs, and in-store systems Collaborate with Fraud and Customer Experience teams to mitigate risks such as account takeover and loyalty fraud Onboard key customer-facing and payment More ❯

Senior Network Security Engineer needed in Kidlington, £450 per dayPAYE - Reference: 369800 Checkpoint, Fortinet, Cisco, Solarwinds, Ivanti Pulse 1. Uses network management tools to determine network or Voice traffic load and performance statistics to support delivery and monitoring of agreed service levels in support of the ICT strategy. 2. Creates reports and proposals for improvement to support More ❯

the heart of our digital transformation. As we continue to grow and innovate, securing our applications and protecting customer data is a top priority. We are looking for a Senior Application Security Engineer to lead our efforts in strengthening application security, mitigating risks, and ensuring best-in-class security practices. If you are passionate about … cybersecurity and eager to make a real impact, we want you on our team! Key Responsibilities: Security Strategy: Help define and execute the Holland & Barrett application security strategy. Collaborate with both tech and non-tech teams to integrate security principles into the early stages of product design and development. Secure SLDC: Establish a secure Software Development Lifecycle … software integrity, authenticity, and third-party library management. Risk Assessments: Conduct risk assessments, threat modeling, and architecture reviews alongside development teams, producing artifacts to drive the implementation of effective security controls. Standards Development: Own the creation and maintenance of tailored security standards and guidelines, developing reusable resources for various development teams. Team Support: Provide guidance and support to More ❯

Role: Senior Network Security Engineer Location : Oxford OR Southampton Rate: £450 per day (outside IR35) Duration: 12 months Key Skills: Checkpoint, Fortinet, Cisco, Solarwinds, Ivanti Pulse Also, eligibility for SC clearance is essential for this role - see note** Our Client: Public Sector/Government organisation The Role: To lead on the successful delivery of Network Security and Network Engineering operations across network infrastructure and voice. The successful candidate will be able to demonstrate: 8+ years' experience in network engineering up to and including senior Network engineering roles. Strong experience in Network Security issues. With expertise in Checkpoint, Fortinet, Solarwinds and Ivanti Pulse technologies. Excellent communication skills to be able to articulate technical designs … and principles to technical and non-technical stakeholders. Clean and current UK driving license Eligibility for the necessary security clearance is essential (see below) **You MUST be a full time Resident of the UK and have the right to work in the UK without the need for VISA sponsorship. You need to have lived and worked in the UK More ❯

Senior Cyber & Infrastructure Engineer Location: Hybrid (London-based) Sector: Financial Services Employment Type: Full-Time A leading financial services organisation is seeking an experienced Senior Cyber & Infrastructure Engineer to play a key role in the evolution of its Microsoft cloud infrastructure and cyber security strategy. This is an excellent opportunity for a technically skilled and … security-focused professional to join a high-performing IT team at the centre of a modern, regulated business. The successful candidate will lead on cloud infrastructure development, security architecture, and risk mitigation - ensuring systems are scalable, secure, and aligned with regulatory expectations. Key Responsibilities: Design, implement and optimise secure, scalable Microsoft Azure and Microsoft 365 infrastructure. Manage and … enhance the organisation's security posture using Microsoft Defender for Endpoint, Sentinel, Intune, and other Microsoft security tools. Lead cloud migration projects and hybrid infrastructure initiatives. Maintain robust access controls, including RBAC and Conditional Access, within Azure AD and Microsoft 365. Collaborate with Risk and Compliance teams to ensure infrastructure aligns with enterprise security frameworks (e.g. ISO More ❯

VCs like Accel , First Round , & Point Nine . Welcome to Spend Control 2.0 - built for tougher times. What we're looking for We're hiring at both Level 3 (Senior) and Level 4 (Lead) . For calibration, candidates typically bring 5+ years of deep security engineering experience in high-growth, cloud-native SaaS environments - but we care more … about impact than years. You'll be the first dedicated security specialist on the team, partnering with product engineers, GTM, and leadership to make Omnea the industry benchmark for security and trust. What You'll Do Make our security posture airtight. Design and implement security controls across architecture, infrastructure and code (AWS Serverless, CDK/SST … React/TypeScript). Shift security left. Embed SAST/DAST, IaC scanning, secure coding standards and threat-modeling into every stage of our CI/CD pipeline. Own compliance & audits. Run our Vanta instance end-to-end (SOC 2 Type II, ISO 27001, GDPR, etc.) and coordinate third-party pen tests, evidence gathering and policy reviews. Enable revenue. More ❯

Role: Senior Network Security Engineer Location : Oxford OR Southampton Rate: £450 per day (outside IR35) Duration: 12 months Key Skills: Checkpoint, Fortinet, Cisco, Solarwinds, Ivanti Pulse Also, eligibility for SC clearance is essential for this role - see note** Our Client: Public Sector/Government organisation The Role: To lead on the successful delivery of Network Security and Network Engineering operations across network infrastructure and voice. The successful candidate will be able to demonstrate: 8+ years' experience in network engineering up to and including senior Network engineering roles. Strong experience in Network Security issues. With expertise in Checkpoint, Fortinet, Solarwinds and Ivanti Pulse technologies. Excellent communication skills to be able to articulate technical designs … and principles to technical and non-technical stakeholders. Clean and current UK driving license Eligibility for the necessary security clearance is essential (see below) **You MUST be a full time Resident of the UK and have the right to work in the UK without the need for VISA sponsorship. You need to have lived and worked in the UK More ❯

Social network you want to login/join with: Senior Software Engineer (Content Delivery & Security), London col-narrow-left Client: bunny.net Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 3384ef32c222 Job Views: 7 Posted: 22.06.2025 Expiry Date: 06.08.2025 col-wide Job Description: We are on a mission to … take pride in their work, and aren't afraid to challenge what's possible. Because everyone deserves a better internet. And we're here to help it hop faster. Senior Software Engineer ( Content Delivery & Security) Our stack handles millions of requests per second across 119+ PoPs on six continents. Your job? Making it faster, safer, and more … efficient. As a Senior Software Engineer on our Content Delivery & Security team, you'll work on core CDN and DNS systems while helping build out our greenfield Shield product, focused on WAF, DDoS mitigation, and bot protection at a global scale. You'll design and optimize low-level systems that accelerate clean traffic and stop attacks in More ❯

experts combine the power of proactive, always-on service and expertise with best-in-class tools and automation to deliver technology when and how our customers need it. The Senior Network Security Engineer (L3) is a key element within the Rackspace support infrastructure and is expected to provide a high level of technical support to our customers … You will be expected to take initiative and advise on potential pitfalls that a customer may encounter and suggest alternatives through automation, which may better serve the stability and security of the customer's solution. Technical issues can include troubleshooting customer network environments including firewall configurations, VPN technologies and access-control lists, VIP configurations, TCL (iRule) and Perl scripts … product portfolio, including RackConnect. You will create and maintain customer loyalty by providing Fanatical Experiences above and beyond customer expectations. You will also be responsible for adhering to company security policies and procedures and any other relevant policies and standards as directed. Discover your inner Racker - click here Key Responsibilities Configure, troubleshoot, and take escalations for Firewalls & Load Balancers More ❯

Job Role: Senior Network Security Engineer Please - Submit rate you are seeking inside ir35 Fundamental Skills Checkpoint Fortinet Cisco Solarwinds Ivanti Pulse Right to work requirements Passport BRP Share Code More ❯

Senior Software Engineer - National Security About Us: We are the Information Intelligence Group (IIG) of CACI UK, a specialist software consultancy providing bespoke solutions to solve our customers' complex operational problems. As our business grows, we seek experienced Software Engineers to join our live projects within the National Security team. Candidates should ideally hold high-level … security clearance and be able to support customers in Bristol, Cheltenham, and Manchester. Due to the nature of the work, there is a 4 to 5-day per week in-office requirement. Our Mission: To support government departments in making critical decisions that enhance UK security and prosperity. Our work is central to national security, making us … and testing Utilizing a range of technologies, with a focus on open-source libraries and components Building continuous integration pipelines using tools like GitLab to ensure software quality and security Deploying systems across environments including AWS, Azure, and private clouds Engaging throughout the software lifecycle: concept, requirements, architecture, implementation, delivery, training, support, and maintenance Leading teams and managing client More ❯

Job Description: Are you passionate about building secure systems from the ground up? We're seeking an experienced and motivated Product Security Engineer to enhance the security of our SoC and embedded firmware solutions. In this role, you will evaluate system security architectures, review firmware code, contribute to ROM assessments, and perform hands-on threat modeling … and lightweight testing. This opportunity is ideal for someone who enjoys solving complex security challenges, collaborating across domains, and making a tangible impact on real-world products. If you are detail-oriented and committed to empowering others in security practices, we would love to hear from you! Responsibilities: Review firmware and SoC architecture for security risks and … threats. Evaluate security features such as secure boot, rollback protection, memory isolation, and TEE. Perform C/C++ security code reviews to identify implementation flaws. Conduct targeted tests to validate security concerns. Collaborate with cross-functional teams to integrate security into the development process. Help design secure firmware architectures for key management, update processes, and hardware More ❯

an outsized impact, you'll thrive here at Zopa, so join us, and make it count.Want to see us in action? Follow us on The team: Zopa's Product Security team ensures security is baked into our products from the very start of their lifecycles, all the way to the end. We provide the more pre-emptive, design … thinking led, less response-based side of securing the bank. If we do our job right, security becomes inherent in the design of our products, rather than something grafted on after. With you, we'll be a Product Security team of 4, sitting within a larger InfoSec team of 18. Our current projects include ongoing security assessments … and threat models of new, in-house created AI-based systems, improving our security tools - such as SAST and SCA, refining a SLSA strategy, helping to roll out an upcoming bounty program and more! We pride ourselves in being able to collaborate and integrate seamlessly with an engineering functions. You'll be working not only directly with your product More ❯

Senior MXDR Security Engineer sought by leading investment bank based in the city of London. Inside IR35 - 3 days a week on site What You'll Do: Development of use cases and rulesets across multiple log sources. Performing regular rule refinement sessions to address rule logic issues and false positives. Output activities from refinement sessions such as … refinement. MITRE ATT&CK heat map coverage. Working with internal ITC teams and the Customer to identify any onboarding or offboarding projects of appropriate log sources necessary for effective security monitoring. Identification of opportunities for additional monitoring. Workbook creation for data visualisation. Attendance at Service Review Meetings. Maintenance of Service Documentation such as LLD (co-management activity). Skills More ❯

Are you passionate about cloud security and looking to make a significant impact? Holland & Barrett is seeking a Cloud Security Specialist to help us define and implement our cloud security strategy. If you're an experienced professional eager to work with cutting-edge technology and collaborate with diverse teams, we want to hear from you! Key Responsibilities … Security Strategy: Help define and execute the Holland & Barrett cloud security strategy, partnering with platform and Site Reliability Engineering (SRE) teams to build robust infrastructure that supports our business. Perimeter Security: Establish platform perimeter security by implementing controls at ingress and egress points, including creating and maintaining an edge network with a Web Application Firewall (WAF … Access Control: Establish an access control baseline focusing on the principle of least privilege and segregation of duties. Monitor and enforce these controls once roles and permissions are set. Security Controls: Design, implement, and maintain security controls to prevent, detect, and remediate insecure configurations, including defining and disseminating secure AWS/infrastructure baselines. Standards Development: Own the development More ❯

Do Perform threat modeling, architecture and design reviews. Help design hard-to-break applications and services. Take an active role in architectural decisions. Work with engineering teams and drive security improvements. Continuously build and improve our security tooling, automation and processes. Perform security assessment (code reviews and penetration testing) of our services. Contribute to the internal engineering … security community. Who we Are The team is missioned to empower engineers to design, build, and deliver secure software swiftly through standardized tools and processes, continuous learning, and fostering a security-focused culture within our engineering division.We help engineering prevent and solve flaws that arise in the planning and development phases through architecture reviews, threat modeling, and various … automated tools and processes. Awesome to Have A pragmatic approach to solving security issues in ways that achieve the best effect Great problem-solving abilities Experience in writing and reviewing code in at least one of the following programming languages: JavaScript (NodeJS), Python, Go, Erlang, Java or Scala Advanced knowledge and understanding in various disciplines: web application security More ❯

About the role: Join Our Team at Holland & Barrett! Are you passionate about cloud security and looking to make a significant impact? Holland & Barrett is seeking a Cloud Security Specialist to help us define and implement our cloud security strategy. If you're an experienced professional eager to work with cutting-edge technology and collaborate with diverse … teams, we want to hear from you! Key Responsibilities: Security Strategy: Help define and execute the Holland & Barrett cloud security strategy, partnering with platform and Site Reliability Engineering (SRE) teams to build robust infrastructure that supports our business. Perimeter Security: Establish platform perimeter security by implementing controls at ingress and egress points, including creating and maintaining … Access Control: Establish an access control baseline focusing on the principle of least privilege and segregation of duties. Monitor and enforce these controls once roles and permissions are set. Security Controls: Design, implement, and maintain security controls to prevent, detect, and remediate insecure configurations, including defining and disseminating secure AWS/infrastructure baselines. Standards Development: Own the development More ❯

you'll have Reporting to Sasha, our Platform Engineering Manager, you'll be working in a team of three. The Platform Engineering team is responsible for Platform Engineering, DevOps, Security, Compliance, Infrastructure Management and providing support to Sales team and customers in these areas. The role will build upon the existing security baseline established but strategically advance the … company's security posture, and developing long-term security strategies. What you'll be doing from day one Design and implement robust, forward-thinking security strategies, policies, and procedures to safeguard our systems, networks, and data. Lead regular security assessments, vulnerability scans, and penetration tests to identify risks and deploy effective remediation measures. Monitor systems, networks … and logs then Investigate security breaches, incidents, and other cybersecurity events. Oversight of compliance for regulatory compliance requirements, such as SOC2, HIPAA, ISO 27001, GDPR etc, and ensure our systems adhere to these standards Conduct security awareness training sessions, enabling the business. Who you are Cloud security enthusiast - You're comfortable navigating AWS and GCP environments (Azure More ❯

Ready to take charge of fire & security projects across London? Were on the hunt for a confident and capable Senior Fire & Security Engineer whos ready to step into a hands-on technical/supervisory role. If you thrive in live environments, love delivering top-notch work, and know your way around high-rise developments keep reading More ❯

Principal/Senior Principal Software Engineer - Email Security The driving force behind our award-winning Email Security Product at Mimecast Dive into the forefront of innovation with our Email Security engineering team. Our pioneering Email Security solution pushes on the boundaries of what's possible, leveraging the latest technologies and tooling in AWS. Why … Join Our Team? "Join us in tackling email processing challenges at an immense scale with our innovative Email Security team! Our MTA process billions of emails from millions of users on thousands of servers each day!" - Hiring Manager What You'll Do? As Principal/Senior Principal Engineer, you will play a pivotal role in leading the … Code. Engage with the team through collaboration, problem-solving, and teamwork. Continually improve team efficiency, personal skills, and team skills. Take ownership and create accountability within the team. Lead security reviews of designs and implementations. Act as a technical lead within the team, fostering collaboration and teamwork. Apply technology trends and industry innovations to our products. Coach and mentor More ❯

of financial institutions, Ripple is improving the global financial system and increasing economic inclusion for more people, in more places around the world. Ripple is looking for passionate Information Security professionals to build a world class Information Security program. As part of the Information Security team, you will help us achieve this mission by actively working to … employees, and our customers. To accomplish this, we are building data pipelines and detections, automating incident response, and developing leading-edge solutions to collect and analyze data in both security incidents and investigations. As a Detection and Response Engineer, you will build and grow your career in all of these areas. WHAT YOU'LL DO: Help lead the … Analyze applications and systems to identify relevant data sources for threat detections Tune and test detection logic to reduce false positives and noise Work with technology vendors to optimize security services for peak effectiveness Research and collaborate internally and externally on open-source solutions Automate response processes with SOAR and related technologies Act in a purple team capacity to More ❯

Senior Software Engineer, Android Hardware Security link Copy link corporate_fare Google place London, UK Mid Experience driving progress, solving problems, and mentoring more junior team members; deeper expertise and applied knowledge within relevant area. Apply link Copy link Bachelor's degree or equivalent practical experience. 5 years of experience with software development in one or more … well beyond web search. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific More ❯

LB393 - Senior Fire Fault & Commissioning Engineer Salary: £40,000 - £45,000 Location: St Albans Overview: First Military Recruitment are currently seeking a Senior Fire Fault & Commissioning Engineer on behalf of one of our clients. Our client encourages applications from ex-military personnel however all candidates will be given due consideration. Duties and Responsibilities: Reporting directly to More ❯

Senior Machine Learning Engineer - Account Takeover Abnormal Security is looking for a Senior Machine Learning Engineer to join the Account Takeover Detection team. At Abnormal, we protect our customers against nefarious adversaries who are constantly evolving their techniques and tactics to outwit and undermine the traditional approaches to Security. Abnormal is recognized as a top … cybersecurity startup (Leader in the 2024 Gartner Magic Quadrant for Email Security Platforms), securing a Series D funding of $250 million at a $5.1 billion valuation in August 2024. Our 100% YoY growth in annual recurring revenue highlights the trust our behavioral AI system has earned in protecting over 17% of the Fortune 500. We continue to grow and … AI. Contribute to the development of machine learning best practices within the organization. Provide mentorship and guidance to junior team members. Required Skills: Proven experience as a Machine Learning Engineer or similar role. Strong knowledge of machine learning algorithms, statistics, and predictive modeling Proficiency with Python and machine learning toolkits like pandas, scikit-learn, and optionally pytorch/tensorflow. More ❯