51 to 69 of 69 Senior Security Engineer Jobs in the UK

Senior SecOps Engineer Location – London (4 days per week in London) Salary - £80-90k + Bonus + Benefits Currently working with a global InsureTech firm who are looking to hire a Senior SecOps Engineer to compliment their established yet growing internal Cyber Defence capability. This is a wide ranging role where you’ll be responsible … detection rules and enhancing their monitoring infrastructure and tooling. This is a cloud-native SOC capability, based in Azure with a big emphasis on the Microsoft E5 suite of security monitoring and detection tooling. Experience configuring, fine-tuning and managing this tooling will be essential, as well as the ability to enhance and automate where possible using KQL. This … specialist with experience of both SecOps Analysis and Engineering to join an established yet growing firm at a crucial point as they completely build out their Information and Cyber Security capability. Key Responsibilities: Act as a lead and technical escalation point on the most complex incidents and investigations. Develop and engineer new detection rules, automating monotonous tasks where More ❯

Senior SecOps Engineer Location – London (4 days per week in London) Salary - £80-90k + Bonus + Benefits Currently working with a global InsureTech firm who are looking to hire a Senior SecOps Engineer to compliment their established yet growing internal Cyber Defence capability. This is a wide ranging role where you’ll be responsible … detection rules and enhancing their monitoring infrastructure and tooling. This is a cloud-native SOC capability, based in Azure with a big emphasis on the Microsoft E5 suite of security monitoring and detection tooling. Experience configuring, fine-tuning and managing this tooling will be essential, as well as the ability to enhance and automate where possible using KQL. This … specialist with experience of both SecOps Analysis and Engineering to join an established yet growing firm at a crucial point as they completely build out their Information and Cyber Security capability. Key Responsibilities: Act as a lead and technical escalation point on the most complex incidents and investigations. Develop and engineer new detection rules, automating monotonous tasks where More ❯

Senior Test Engineer - National Security Job Description Posted Tuesday 30 September 2025 at 00:00 We are the Information Intelligence Group (IIG) of CACI UK, a specialist software consultancy providing new bespoke solutions to solve our customers complex operational problems. As our business continues to grow, we are interested in speaking with an experienced Senior Test … Engineer to join one of our live projects in our National Security Team. At IIG, there's no such thing as a typical solution - we're looking for talent that can keep up with our clients' challenges, and set the pace for new ideation. We value intelligence and fast learners, flexibility and excitement about tackling every new opportunity. … Our work is highly collaborative, so friendly relationship builders are vital to our teams. The Role: As a Senior Test Engineer, you will join one of our small, fast-paced, agile delivery teams. Working on one of our inflight projects, you will play a key role to ensure continuous automated testing is implemented, early and often, as a More ❯

Senior AI Engineer/Developer (AI) Knutsford onsite to £130k Are you a technologist with a strong knowledge of AI and its practical uses within software engineering? You could be joining a scaling Cyber Security technology company and enjoying a huge range of perks and benefits from continual learning and self-development opportunities (including "buy any book … policy) through to health and well-being, enhanced paternity packages, generous holiday allowance, inclusive social events and much more. As a Senior AI Engineer you will drive the adoption of AI within the business, assessing how to effectively use AI to optimise production and then rolling out your recommendations across teams. You'll take ownership, working end-to … as OOP, Data Structures, Algorithms, Design Patterns You're collaborative, enjoy problem solving and are keen to pick up new skills What's in it for you: As a Senior AI Engineer/Developer you will earn a highly competitive package including: Salary to £130k 8% pension contribution Life Assurance and Income Protection Enhanced maternity/paternity packages More ❯

Senior AI Engineer/Developer (AI) Knutsford onsite to £130k Are you a technologist with a strong knowledge of AI and its practical uses within software engineering? You could be joining a scaling Cyber Security technology company and enjoying a huge range of perks and benefits from continual learning and self-development opportunities (including "buy any book … policy) through to health and well-being, enhanced paternity packages, generous holiday allowance, inclusive social events and much more. As a Senior AI Engineer you will drive the adoption of AI within the business, assessing how to effectively use AI to optimise production and then rolling out your recommendations across teams. You'll take ownership, working end-to … as OOP, Data Structures, Algorithms, Design Patterns You're collaborative, enjoy problem solving and are keen to pick up new skills What's in it for you: As a Senior AI Engineer/Developer you will earn a highly competitive package including: Salary to £130k 8% pension contribution Life Assurance and Income Protection Enhanced maternity/paternity packages 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 ❯

Physical Security Operations Technical Systems Engineer – Remote (occasional travel to site) - £60,000 + benefits The UK’s leading trade and logistics company is seeking a skilled Security Operations Technical Systems Engineer to drive the development and optimisation of their CCTV, Electronic Access Control (EACS), and Operational Technology systems across multiple sites, delivering secure, resilient, and … industry-leading solutions aligned with business and security goals. Key Responsibilities Oversee daily OT operations and incidents, ensuring systems remain secure, reliable, and fully supported. Conduct system checks, audits, and performance reporting across CCTV, access control, and OT platforms. Manage firmware and software updates, ensuring compliance and system integrity. Support new project delivery from design to commissioning and handover. … Collaborate with cybersecurity and network teams to maintain secure, standardised deployments. Identify risks, manage vulnerabilities, and drive continuous improvement across all security systems. Key Requirements Proven experience managing enterprise-level CCTV, EACS, and OT systems in a multi-site environment. Strong technical knowledge of system architecture, networking, and security best practice. Skilled in incident management, data reporting (API More ❯

We are looking for a Mid Splunk Security Engineer to work in our Application SOC team. This team is part of the Service Integration unit within DNV Cyber's Managed Services department. Managed Services is a tech savvy group of people, with a common interest in improving the security of our customers. In this role, you would … you will: Lead customer assignments, ranging from simple engagements to more complex deployment projects. Conduct threat modelling exercises and work with customer stakeholders, mostly the technical software engineers and security team. Thus, this is a customer facing role. Have the chance to influence the projects that you get. Thus, you can affect where you personally develop, so you can … We have recently embarked on an exciting journey - formerly known as Nixu, now combined forces with DNV and Applied Risk, with the goal of creating a leading European cyber security services business. As DNV Cyber, we are passionate about cyber security and take pride in the way we are impacting the society we live in. We encourage you More ❯

We’re hiring a Senior Network Security Engineer to build, secure, and evolve a global enterprise network. Your mission: strengthen the perimeter and application delivery layers—designing resilient, high-performing infrastructures across firewalling, proxy, DNS, and load balancing domains. Mission Objectives Design and implement new network security and traffic management solutions across global sites. Modernise and … standardise firewall, proxy, and load balancing architectures for scale and resilience. Engineer DNS and application traffic flows to improve latency, reliability, and visibility. Conduct deep-dive analysis of traffic paths (DNS → F5 → Firewall → Server) to eliminate bottlenecks and single points of failure. Review and implement changes under CAB discipline, ensuring stability and rollback readiness. Partner with Security, Platform … Proxy: Infoblox, Bluecoat, Zscaler or equivalent enterprise stack Routing/Switching: Cisco Catalyst, Nexus (OSPF, BGP, VRF) Monitoring & Tooling: ServiceNow, Zabbix, Centreon, Nagios Profile 7+ years’ experience in network & security engineering within large-scale production environments. Strong expertise in firewall, proxy, DNS, and load balancing configuration and lifecycle management. Proven ability to design and implement resilient network security More ❯

Senior Cyber Security & Infrastructure Engineer - Azure - FinTech A FinTech is seeking a skilled Senior Cyber & Infrastructure Engineer to drive the next phase of its Microsoft cloud environment and cyber security strategy. This role offers an opportunity to join a forward-thinking IT function and be a key player in building secure, scalable systems and … ensuring the organisation stays ahead of evolving cyber threats. The successful candidate will take ownership of security architecture in a Microsoft cloud infrastructure environment to deliver resilient, and future proof solutions. Key Responsibilities: Implement and enhance secure, Microsoft Azure and Microsoft 365 platforms. Strengthen and manage the organisations security posture using Microsoft Defender for Endpoint, Sentinel, Intune, and … other Microsoft security solutions. Integrate and optimise EDR, XDR, and CrowdStrike (or similar platforms) to improve threat detection and response capabilities. Maintain effective access controls, including RBAC and Conditional Access Collaborate with Risk & Compliance teams to align infrastructure with ISO 27001, NIST, and CIS frameworks. Act as the technical SME for security infrastructure and collaborate with other Cloud 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 ❯

Join a high-impact team driving the future of secure technology. As a Senior Principal Security Certification Engineer, you’ll be a strategic leader within the Security Office, collaborating with top-tier security and architecture experts. Your role will shape certification strategy, guide compliance efforts, and influence product direction in response to evolving threats. You … ll play a pivotal role in advancing cryptographic innovation and ensuring Entrust products meet global security standards—where trust, innovation, and security converge. Key Responsibilities: Lead Global Certifications : Manage FIPS 140, Common Criteria (CC), and regional certifications (e.g., NITES, PKTN, NATO) for new and existing products—ensuring timely, cost-effective approvals. Strategic Guidance : Advise Engineering and Product Management … on certification requirements across global markets. Product Influence : Collaborate with Security Architects to define requirements for current and next-gen cryptographic modules. Trusted Advisor : Provide expert guidance on certification evolution and integration with Entrust products like Issuance HSM and Signature Activation Modules. Basic Qualifications: Proven experience with security certifications (FIPS 140-2, CC, PCI), either in a lab More ❯

We’re partnering with an award-winning cybersecurity scale-up transforming how enterprises monitor and manage security risk. Their cutting-edge Monitoring platform is trusted by global organisations to keep their defences working . As a Cybersecurity Solutions Engineer, you’ll act as a trusted advisor to senior security leaders, leading demos, POCs, and workshops that … engineering and enhance pre-sales delivery. Act as a subject matter expert across EMEA and support key partner onboarding. What you’ll bring: 5+ years’ experience in a Sales Engineer or Pre-Sales role within cybersecurity or data-driven SaaS. Hands-on knowledge of SQL, AWS, Linux, YAML/JSON, and GitHub. Experience engaging CISOs and enterprise stakeholders. Background More ❯

Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start Caring. Connecting. Growing together. A Security Logging Engineer partners with ESRO Cyber Defense Teams to build, customize and distribute Security Log Solutions for on-prem and in the cloud systems. Work alongside the … top Google SecOps engineers in the company to ensure our pipelines feeding SecOps are as efficient, reliable and cost effective as possible. ESRO Security Logging Team and ESRO Cyber-Defense teams both utilize the same workload software which produces a seamless workflow, a quicker time-to-deliver, and partnerships that offer focused value. We work with platform owners across … the enterprise to provide support and education around the security events their platforms produce. We deliver world-class event pipelines tailored for each owner's platform. Careers with Optum offer flexible work arrangements and individuals who live and work in the Republic of Ireland will have the opportunity to split their monthly work hours between our London office and More ❯

Join this established Cyber team on a large Defence site, working within the Security Services environment whilst also performing administration duties across Windows and Linux based Server Infrastructure, Security Appliances, Network Infrastructure, Virtual Environments and Storage. This is an opportunity to become involved in the world of Defence and Science where no 2 days are the same. Initially … and maintaining an on prem Splunk solution. 3rd/4th line Network Issues. What you’ll bring: Experience in managing and maintaining Splunk solution. 3rd/4th line Network Security experience support . in an Enterprise environment working to challenging SLAs. Advanced Firewall and Proxy administration (to include install, configurations and fault finding). Recent experience of working within … security environments. Understanding of Networks, Routers, DMZ and Switches. Extensive Core Linux administration skills. Core MS Windows administration skills. Experience of VMware vSphere virtualisation systems. Good understanding and ability to perform root cause analysis across a range of protocols and topologies (TCP/IP, HTTP & HTTPS, SMTP, FTP, DNS, DHCP, X500) . Knowledge of ITIL (ITIL Foundation certificate or More ❯

securing them from exfiltration or misuse becomes critically important. In this role, you'll be helping to build and institute controls to lock down our AI training pipelines, apply security architecture patterns built for adversarial environments, and secure our model weights as we scale model capabilities. Responsibilities Design and implement secure-by-default controls as they relate to our … software supply chain, AI model training systems, and deployment environments. Perform security architecture reviews, threat modeling, and vulnerability assessments to identify and remediate risks. Support Anthropic's responsible disclosure and bug bounty programs and participate in the Security Engineering team's on-call rotation. Accelerate the development of Anthropic's security engineers through mentorship and coaching, and … contribute to company building activities like interviewing. Help build greater security awareness across the organization and coach engineers on secure coding practices. Lead and contribute towards large efforts such as building multi-party authorization for AI-critical infrastructure, helping to reduce sensitive production access, and securing build pipelines. You may be a good fit if you Have 8+ years More ❯

detection rules and enhancing their monitoring infrastructure and tooling. This is a cloud-native SOC capability, based in Azure with a big emphasis on the Microsoft E5 suite of security monitoring and detection tooling. This is an incredible opportunity for an experienced SecOps specialist with experience of both SecOps Analysis and Engineering to join an established yet growing firm … at a crucial point as they completely build out their Information and Cyber Security capability. Comprehensive knowledge and experience utilising/fine-tuning the Microsoft E5 Security stack Defender, Sentinel, KQL, etc. Experience working in hybrid-cloud SOC environments Azure preferably. Ability to articulate specific projects that you have built, developed or led on, specific to SecOps Engineering … innovative HealthTech firms build out their cyber defence capability and leave a lasting impact on one of the most reputable organisations whilst working alongside a team of genuine Cyber Security SMEs, click the to apply or get in touch directly j. More ❯

at the heart of some of the biggest and most ambitious programmes undertaken to keep our country safe? We are proud of the impact we have with Defence and Security clients, the strength of our relationships, and the variety of our skills and expertise that we bring to help them achieve their mission. We're growing our team. If … in the development and delivery of IAM training and awareness programmes. Collaborating with cross-functional teams to ensure effective IAM implementation and operation. Stay up to date with emerging security threats, technologies, and industry best practices, and provide recommendations for improvement. Communicate solutions to both a technical and non-technical audience. Qualifications and professional experience All applicants must have … UK security clearance to Security Check (SC) or Developed Vetting (DV) level. We recognise our strength is in the diversity of our teams experience, background and culture. We are looking for talented individuals who are passionate about the work they do, prepared to think differently, are pragmatic and able to work with others to influence outcomes. We value More ❯

at the heart of some of the biggest and most ambitious programmes undertaken to keep our country safe? We are proud of the impact we have with Defence and Security clients, the strength of our relationships, and the variety of our skills and expertise that we bring to help them achieve their mission. We're growing our team. If … in the development and delivery of IAM training and awareness programmes. Collaborating with cross-functional teams to ensure effective IAM implementation and operation. Stay up to date with emerging security threats, technologies, and industry best practices, and provide recommendations for improvement. Communicate solutions to both a technical and non-technical audience. Qualifications and professional experience All applicants must have … UK security clearance to Security Check (SC) or Developed Vetting (DV) level. We recognise our strength is in the diversity of our teams experience, background and culture. We are looking for talented individuals who are passionate about the work they do, prepared to think differently, are pragmatic and able to work with others to influence outcomes. We value More ❯