10 of 10 Principal Security Engineer Jobs in England

Principal Security Engineer The Role: Synoptix are expanding their Cyber Security capability by applying it to Systems Thinking, allowing for delivery of Cyber Security Solutions to both defence and commercial clients. We re looking for a technically strong, client-focused Principal Security Engineer to support the development, implementation, and assurance of secure … architectures and solutions. This role sits within our Secure by Design capability and supports both internal development projects and external client engagements. Working alongside the existing team, contributing to security requirements definition, risk assessments, technical security design, and security documentation for both internal platforms and client systems. Dynamic Working: A blend of home and office-based working … is encouraged Key Responsibilities: Lead and Deliver Cyber Security work packages to clients, this includes applying Systems Engineering methodologies into Cyber solutions. Risk identification and management Requirements Capture Validation Verification Be responsible for the technical content of client deliverables, for example. Security Management Plans Security Case Report following Secure by Design through life principals Verification Plans Validation More ❯

Principal Security Engineer The Role: Synoptix are expanding their Cyber Security capability by applying it to Systems Thinking, allowing for delivery of Cyber Security Solutions to both defence and commercial clients. We're looking for a technically strong, client-focused Principal Security Engineer to support the development, implementation, and assurance of secure … architectures and solutions. This role sits within our Secure by Design capability and supports both internal development projects and external client engagements. Working alongside the existing team, contributing to security requirements definition, risk assessments, technical security design, and security documentation for both internal platforms and client systems. Dynamic Working: A blend of home and office-based working … is encouraged Key Responsibilities: Lead and Deliver Cyber Security work packages to clients, this includes applying Systems Engineering methodologies into Cyber solutions. Risk identification and management Requirements Capture Validation Verification Be responsible for the technical content of client deliverables, for example. Security Management Plans Security Case Report following Secure by Design through life principals Verification Plans Validation More ❯

Principal Engineer - Product Security (Product Security Analyst) - 6 month contract - Frimley, Surrey - £85.40 ph UMB or £63.21 ph PAYE (Inside IR35) The Umbrella rate quoted above is the Gross Umbrella rate (i.e. the rate we pay to the Umbrella Company inclusive of ALL employment costs). Please note, the rate paid by the Umbrella will be … less, as will a Limited Deemed rate or Agency PAYE rate. Please get in touch to discuss the rates via these different payment vehicles. The Role The PSA Principal Engineer will be a focal point for security and information risk matters within the Product Security Engineering (PSyE) team and will be able to apply their deep … delivered solutions meet the specified contractual and regulatory requirements and can be operated securely, correctly and safely. Role Responsiblities: Not limited to... Risk Management Accreditation Document Set (RMADS). Security Strategy and other accreditation documentation Captured and agreed technical requirements in accordance with company and programme processes. Compliant technical solutions against contractual requirements and regulations. Technical input and appropriate More ❯

Principal Engineer – Product Security Location: Frimley (hybrid – average of 2–3 days onsite per week) Rate: £85.40 per hour/umbrella (inside IR35), approx. £632 per day Contract: 6-months initially (potential for extension or to go permanent) Hours: 37 per week Clearance: Active SC Clearance required Restrictions: ITAR and “UK Eyes Only”, please note only sole … British citizens can apply About the Role We're seeking a highly experienced Principal Product Security Engineer to join one of our clients Product Security Engineering teams, supporting the delivery and through-life management of secure submarine systems and products. As a key focal point for security and information risk, you'll apply deep technical … and supported securely, safely, and in compliance with contractual and regulatory requirements. You'll provide subject matter expertise to internal stakeholders, support technical authorities, and influence the development of security strategies, policies, and best practices across major defence programmes. Key Responsibilities Provide expert advice on Product Security to engineering and project teams. Analyse system architectures to identify threats More ❯

Principle IT Security Engineer – Windows, Automation, Endpoint Security London – Hybrid Industry Leading Compensation Quant Capital is partnered with a leading trading firm looking to hire an IT Security Engineer to strengthen their global security posture. This role sits inside a high-performing engineering group and suits someone who can own technical decisions, cut through … noise, and build security controls that scale. You’ll work across Windows engineering, endpoint security, automation, vulnerability management and platform hardening. Expect a mix of hands-on engineering, advisory work, and proactive threat mitigation. The environment is fast-moving and technically demanding — you’ll be the person the wider IT team turns to for sound judgement and clarity. … What you’ll be doing Designing and implementing security controls across Windows platforms Driving vulnerability management initiatives and closing out remediation at scale Building automation around configuration, monitoring, and incident response Improving endpoint security: EDR, AV, patching, OS hardening Working with core infrastructure (AD/Entra ID, PKI, networking) Investigating emerging threats and advising on technical risk Supporting More ❯

Principle IT Security Engineer – Windows, Automation, Endpoint Security London – Hybrid Industry Leading Compensation Quant Capital is partnered with a leading trading firm looking to hire an IT Security Engineer to strengthen their global security posture. This role sits inside a high-performing engineering group and suits someone who can own technical decisions, cut through … noise, and build security controls that scale. You’ll work across Windows engineering, endpoint security, automation, vulnerability management and platform hardening. Expect a mix of hands-on engineering, advisory work, and proactive threat mitigation. The environment is fast-moving and technically demanding — you’ll be the person the wider IT team turns to for sound judgement and clarity. … What you’ll be doing Designing and implementing security controls across Windows platforms Driving vulnerability management initiatives and closing out remediation at scale Building automation around configuration, monitoring, and incident response Improving endpoint security: EDR, AV, patching, OS hardening Working with core infrastructure (AD/Entra ID, PKI, networking) Investigating emerging threats and advising on technical risk Supporting 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 ❯

Principal Engineer - Product Security Location: Frimley (hybrid - average of 2-3 days onsite per week) Rate: £85.40 per hour/umbrella (inside IR35), approx. £632 per day Contract: 6-months initially (potential for extension or to go permanent) Hours: 37 per week Clearance: Active SC Clearance required Restrictions: ITAR and "UK Eyes Only", please note only sole More ❯

Principal Engineer - Product Security Location: Frimley (hybrid - average of 2-3 days onsite per week) Rate: £85.40 per hour/umbrella (inside IR35), approx. £632 per day Contract: 6-months initially (potential for extension or to go permanent) Hours: 37 per week Clearance: Active SC Clearance required Restrictions: ITAR and "UK Eyes Only", please note only sole More ❯

SIEM/SOAR and ManagedDetection and Response service called SEP2.security, built upon Google CloudSecurity's Chronicle stack. Due to customer demand, we are now looking to hire aPrincipal Cyber Security Engineer to join this every growing team. The Security Intelligence Services team, that this role issituated in, provides security monitoring and use case/playbook implementationon … those local to the West Yorkshire areaa hybrid role, with occasional travel to our Leeds SOC. Main Tasks Leadtechnical engagements with managed clients, internal teams, and externalpartners to assess security requirements and develop effective solutions. Detectionrule creation, log source onboarding, tuning and building response plans/playbooks. Respondto customer requests for security monitoring and recommend/devisedetection rules. … Supportingboth in-life services as well as new customers. Investigatecomplex security events and alerts. Researchthreats and vulnerabilities. Helpto support and mentor our apprentices. Contributeto the SIS On Call Rota (approximately 1 week in 5). Personal Qualities A"Customer Centric" attitude, with the ability to communicate with bothtechnical and non-technical parties effectively. Theability to build credibility quickly with More ❯