26 to 43 of 43 Principal Security Engineer Jobs in the UK

Role Brackley, UK We have an exciting opportunity within our Enterprise Technology team for a Principal Information Security Engineer. This is a senior, hands‐on role. Our in-house security capability continues to mature, and there is a real opportunity to shape it. This role is about … establishing the foundations, including the technical security frameworks, standards and operating practices that underpin how we protect systems across both factory and trackside environments, while remaining hands‐on to turn them into reality. You’ll set the technical direction for security engineering and operations, strengthen controls across ...

Leonardo UK Ltd is seeking a Principal Product Security Engineer to join the Combat Air and Electronic Warfare division. You will implement security across the product lifecycle, advising multidisciplinary teams and aligning with governance standards to protect defence technologies. The role requires experience in security risk management, RMF/NIST, and recognised security bodies. You will liaise with security experts and managers, contribute to security strategy, and support pre-employment #J-18808-Ljbffr ...

# Principal Software Engineer (Java) - Security - ElasticsearchElastic · elastic.coCategory: Security EngineeringLocation: United KingdomLevel: Staff/Principal## Quality of lifeWhat the posting states. Hover or tap a perk to see the line it came from.* 16 weeks parental leave* Retirement matchElastic, the Search AI Company, enables everyone … taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.What is The RoleWe are seeking a Principal Software Developer to join the Elasticsearch Security ...

Overview: As a Security Engineer – Fuzzing Specialist, you will own and evolve our coverage-guided fuzzing program. Your mission is to uncover hard-to-reach security flaws before attackers do, drive fixes to closure, and help product teams to embrace dynamic testing like fuzzing. You’ll scout … share insights— from coverage metrics to post-mortems to create data-driven security. Required Skills and Experience: 1+ years in application or product security with a deep focus on coverage-guided fuzzing. Hands‐on expertise with at least one modern fuzzing framework (e.g., libFuzzer, AFL++, Honggfuzz). Proficient ...

with the information and control systems required by the aircrew to meet the demanding operational needs of these aircraft. Responsibilities for this Position Lead security architecture for GCAP mission systems Define security requirements and secure-by-design approaches Lead threat modelling, risk assessment and accreditation activities Provide technical … defence capability and international collaboration Qualifications Degree level education or equivalent in a relevant engineering discipline Knowledge of Secure by Design and product security standards Security architecture and cryptography expertise Demonstrated high levels of motivation, integrity, and professionalism Flexibility, innovation, and commitment to delivery in a fast‐paced ...

Principal AI Software Engineer £725-800 per day London x1 day per week in St Pauls 6 month initial contract Inside IR35 The opportunity This is a contract engagement supporting a major Information Security AI transformation, a large programme that is modernising and automating the security … operating model with agentic AI. We are looking for a hands‐on engineering leader to drive the build of a portfolio of agentic AI security applications, defanging the solution architecture and contributing to the most complex components of the solution and system design. You would work with a good ...

Elastic seeks a Principal Software Developer to lead Elasticsearch security, focusing on authentication, authorization, and tenant isolation. You will shape security across the core engine and collaborate with product and engineering leadership. You will drive scalable RBAC/ABAC models, apply cryptographic controls, and mentor engineers while ...

Wolf Security in Cambridge is seeking a Principal Browser Software Engineer to join our R&D team. You will design and develop browser-based security features for our micro-virtualization platform, contributing to secure browsing across Chromium-based and Firefox-based environments. The role combines hands … C++ development with collaboration across security researchers, product teams and engineers, with a hybrid work model requiring on-site presence in Cambridge three days a week. #J-18808-Ljbffr ...

client is a global aerospace, defence and security company. Job Description: Your impact Are you a Systems Engineer who loves contributing to the UKs Defence Industry and making impactful change? Our client has a fantastic opportunity for an Engineer to be responsible for the design and development … security related functionality required to support our next generation airborne communications system. This role will involve engaging with other areas of the project, the project security function, international partners and the customer. You will be working on real Engineering problems, designing and developing solutions that ...

Description:Your impactAre you a Systems Engineer who loves contributing to the UKs Defence Industry and making impactful change? Leonardo has a fantastic opportunity for an Engineer to be responsible for the design and development of security related functionality required to support our next generation airborne communications … system. This role will involve engaging with other areas of the project, the project security function, international partners and the customer. You will be working on real Engineering problems, designing and developing solutions that sit at the heart of our products.What you'll doManagement of system requirements.Feasibility studies ...

taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud‐based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role: We are seeking a Principal Software Developer to join … Elasticsearch Security team. In this role, you will lead the architecture and design of Elasticsearch’s main features. These features include authentication, authorization, and tenant isolation. You will work with engineering and product leaders at Elastic. Your goal is to provide high-performance security at all levels. This ...

Meta seeks experienced engineers to join the Central Integrity team as Principal Engineer (Technical Leadership). You will own the multi-year strategy for account and entity compromise across the Family of Apps, collaborating with executive leadership and partner orgs to reduce real-world harm fastest. You will ...

Entrust, a leader in identity security solutions, seeks a Principal Solutions Engineer to own the technical engagement with a portfolio of EMEA Key Accounts and select US partners. You will drive API/SDK integrations, guide multi-stakeholder negotiations, and influence product direction while mentoring a global ...

Entrust is seeking a Principal Solutions Engineer based in the United Kingdom to own the technical side of a portfolio of EMEA Key Accounts and to serve as the focal point for partner engagements in the US. You will lead complex technical conversations, mentor peers, and influence product ...

client is a global aerospace, defence and security company. Job Description: Your impact Are you a Systems Engineer who loves contributing to the UKs Defence Industry and making impactful change? Our client has a fantastic opportunity for an Engineer to be responsible for the design and development … security related functionality required to support our next generation airborne communications s click apply for full job details ...

Leonardo UK Ltd is recruiting a Principal DevOps Engineer to lead engineers and shape secure automation across hybrid and cloud environments. You will drive CI/CD design, infrastructure as code and container orchestration while embedding security into delivery. We seek a leader who can balance practical ...

Leonardo UK Ltd in the United Kingdom is seeking a Principal Data Manager to govern and safeguard critical engineering and programme data across defence and aerospace programmes. You will ensure data is identified, controlled, and traceable throughout the product lifecycle. Reporting to the Lead Configuration & Data Manager, you will ...

Gemba Advantage is seeking Senior and Principal Software Engineers to design and deliver secure, scalable cloud-native services in small teams. You will remain hands-on while guiding architecture and standards, mentoring peers, and collaborating with customers. The role requires active or recently active SC/DV clearance ...