126 to 150 of 286 Senior Security Engineer Jobs in England

Senior Red Team Cyber Security Engineer

Location
West of England, England, United Kingdom
Immersive seeks an experienced Senior Cyber Security Engineer - Red Team to design and deliver engaging offensive security content within Immersive One. You will craft labs, games and scenarios, publish practical exercises, and shape the red team content roadmap. You’ll teach professionals to counter evolving threats ...

Senior Cyber Security Engineer & AVP — Threat Lead

Location
Greater London, England, United Kingdom
Mizuho EMEA is seeking a Cyber Security Engineer at the Assistant Vice President level to advance threat detection, threat hunting, and security automation within our Proactive Security team in London. The role emphasizes building and refining security tooling, SIEM/EDR configurations, and SOC collaboration. ...

Senior Simulation Software & Security Engineer

Location
Crawley, England, United Kingdom
software development, engineering and technical services, and a range of other services to support training centres. Join the Commercial Simulation Binary team as a Senior Simulation Software & Security Engineer part of the SW Engineering team supporting Training Solutions. In this role, you will also help define, implement … harden the security architecture for a complex iOS application built with Unreal Engine and extensive proprietary native C++ libraries. Hiring details This requisition is for a locally hired position in Crawley. Benefits and pay are determined at the local level and are not part of the company U.S. based ...

Senior Security & Systems Engineer: End-to-End Client Delivery

Location
England, United Kingdom
BMIE Recruitment is seeking a senior IT/security engineer to own client delivery end-to-end for premium engagements. You will mentor a junior engineer and act as a trusted advisor to sophisticated clients, including investment firms and family offices, while designing environments using … + Google Workspace and modern security tooling. The role emphasizes hands-on delivery with a remote, small team based in the UK, with occasional travel within Europe. #J-18808-Ljbffr ...

Senior Simulation & Security Engineer – Onsite Crawley

Location
Crawley, England, United Kingdom
United States Digital Space LLC is looking for a Senior Simulation Software & Security Engineer to join their team in Crawley, England. In this role, you'll maintain a large C++ codebase and ensure the security of complex applications built for iOS environments. The ideal candidate will … have a Bachelor's degree in a relevant field, strong C/C++ skills, and experience in developing security architectures for mobile applications. The company offers a range of benefits including competitive salary and opportunities for personal growth. #J-18808-Ljbffr ...

Senior Cyber Security Engineer: Strategy & Incident Response

Location
Cumnor, England, United Kingdom
Hellios Information Limited is seeking a Cyber Security Engineer to safeguard information assets and develop cybersecurity strategies in compliance with regulations such as GDPR and NIS2. You will oversee security operations and incident response across the organization. Ideal candidates have over 10 years of experience in information … security and recent leadership in cybersecurity engineering roles. The position offers a chance to influence at senior management levels while ensuring strategic security goals are met. #J-18808-Ljbffr ...

Senior Application Security Engineer

Hiring Organisation
Hackajob Ltd
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
subject to experience Why This Role Exists Redgate's product teams move fast, across a growing set of AI and cloud-native technologies, and security can't just be a gate at the end of that process. This role exists to embed security expertise directly into … control the judgement. Everyone at Redgate works with Claude, giving you access to the best AI tools from day one. Why Join Our Product Security Team You'll shape how security works across multiple product teams, rather than enforcing policy from the sidelines. There's real scope ...

Senior Product Security Engineer — Embedded & AI Systems

Location
Greater London, England, United Kingdom
Anduril Industries seeks a Staff Product Security engineer to build security tooling, identify vulnerabilities, and safeguard our AI, command and control, aerospace, and sensing technologies. You will review architectures, perform threat modelling, and collaborate with teams to fortify firmware, software, and embedded systems, while ensuring compliance … security documentation is thorough and up-to-date. #J-18808-Ljbffr ...

Senior Linux Security Engineer - eBPF & Kubernetes Policy

Location
Greater London, England, United Kingdom
Cisco Systems is looking for a Tetragon Security Engineer in Greater London. The role involves developing and maintaining runtime security policies for Tetragon, a Kubernetes-aware security tool. Candidates should have over 3 years of experience in threat research and security detections. The position offers … opportunities to work with both Cisco and Isovalent engineers on enhancing security capabilities. Effective communication skills are essential, and familiarity with eBPF and Kubernetes is preferred. #J-18808-Ljbffr ...

Senior OT Cyber Security Engineer – Rail Systems

Location
York and North Yorkshire, England, United Kingdom
currently have an opportunity for a Senior or Principal Cyber Security Engineer to join SYSTRA's Cyber Security team. The role involves delivering cybersecurity solutions for rail and infrastructure clients from concept through operation, managing governance and ensuring standards are met. Ideal candidates will have 3+ … years in OT cybersecurity, risk management, and a track record of leading security strategy in complex systems. #J-18808-Ljbffr ...

Senior AWS Cloud Security Engineer – Platform Leader

Location
Swindon, England, United Kingdom
Supply & Trading GmbH in the UK is seeking an experienced AWS Cloud Security Engineer to secure, evolve and operate the AWS platform used by RWEST teams to run business-critical applications. You will embed security into cloud foundations and shared services, collaborating across platform engineers, application teams … security specialists to implement robust security controls from the start. You will design and monitor IAM, security monitoring, and threat modelling, ensuring secure #J-18808-Ljbffr ...

Senior Embedded Security Engineer (SoC & Firmware)

Location
Cambridge, England, United Kingdom
leading technology company in Cambridge is seeking a Product Security Engineer to enhance the security posture of their SoC and embedded firmware solutions. This role involves reviewing firmware code, evaluating system architectures, and collaborating with cross-functional teams to implement security measures. Ideal candidates possess strong ...

Senior Security Engineer, Detection and Response

Hiring Organisation
Roblox
Location
London, UK
Employment Type
Full-time
interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a founding member of the Security Operations team in EMEA, you will join us at an exciting time in Roblox's SIRT & SOC program. You will design and build … detections, automation and tooling that let a lean team monitor and protect players, developers, employees and the platform at global scale and serve as security incident commander in the region. This is a highly autonomous role where you will be a primary decision-maker, core to our mission ...

Senior Full Stack Engineer, Agentic Security

Location
Greater London, England, United Kingdom
Senior Full Stack Engineer, Agentic Security About Dynamo AI Dynamo AI is building the future of trustworthy AI for the enterprise. Our platform provides real-time guardrails, red-teaming, and observability for generative and agentic AI systems-ensuring safe, compliant, and reliable deployments across regulated sectors such … well recognized and well funded (>$30M raised), with offices in NYC, SF, Bangalore, and a European office planned to open soon. The Agentic Security Team builds the product and infrastructure behind Agent Warden - a security layer for agentic systems that detects risk patterns, enforces guardrails, and gives teams ...

Senior Network Security Engineer On site

Location
City Of London, England, United Kingdom
Reports to: Head of NOC Job purpose: Working as part of a team of experienced Network Security Engineers, including our 24x7 NOC this role will provide dedicated support for the customer. The role, alongside side another Network Security Engineer will, on a day to day basis report … support highly secure, complex network environments for our financial services customer, a global bank with offices in Central London. Key interfaces: Internal network and security teams within the Customer, ITC NOC Manager, Service Manager/Account Management, Network Security Engineers (both within the Customer ...

Senior AppSec Engineer: Pen-Testing & AI Security

Location
Greater London, England, United Kingdom
Brex is seeking a Senior Application Security Engineer to identify and remediate vulnerabilities across the Brex platform. You will perform code reviews, penetration testing, and tooling development to support secure developer workflows. You will collaborate across Security Operations, GRC, Product Security, Front End Platform … Infrastructure, applying threat modeling, SAST/DAST, and agentic AI security to protect a global financial service used by top customers. #J-18808-Ljbffr ...

Senior Cloud, Infra & Cyber Security Engineer

Location
Norwich, England, United Kingdom
VanWonen is seeking an experienced Senior Infrastructure, Cloud & Cyber Security Engineer to join our IT team in Norwich. This hands-on role designs, implements, secures and continually improves our Microsoft technology platforms and IT infrastructure, with 37.5 hours on site each week. You will drive cloud adoption … cyber security maturity and infrastructure modernisation programmes, working with the Head of IT to deliver automation, governance and resilient systems across the business. #J-18808-Ljbffr ...

Senior Cyber Security Engineer & Incident Leader

Location
City Of London, England, United Kingdom
Privalgo, a London-based FCA-authorised payments specialist, seeks a Cyber Security Engineer to safeguard digital assets and data. You will guide security practices, mentor engineers, and ensure compliance across the business. Responsibilities include designing secure architectures, implementing automated security testing, and leading incident response ...

Senior 3rd Line Network & Security Engineer - Hybrid/Flexible

Location
Manchester, England, United Kingdom
Softcat plc is seeking a Senior 3rd Line Network and Security Engineer to join the dedicated Network and Security team. You will be responsible for providing 3rd line support to both internal and external customers and drive incidents to resolution. The role emphasizes knowledge sharing, complex … configurations, and end-to-end ownership of escalations, with hybrid working patterns and a strong focus on security technologies. #J-18808-Ljbffr ...

Senior Fuzzing & Security Engineer — Coverage Leader

Location
Cambridge, England, United Kingdom
leading technology company in the UK seeks a Security Engineer – Fuzzing Specialist. The role involves owning a coverage-guided fuzzing program, improving security through proactive fuzz testing, and collaborating with product teams to resolve vulnerabilities. The ideal candidate will have experience in application security, proficiency ...

Senior Network Security Engineer — Hybrid, London

Location
Greater London, England, United Kingdom
Secure is seeking an experienced Network Security Engineer to join our 24x7 NOC in Central London. You will work alongside another engineer to monitor and support a highly secure, global bank’s network, coordinating with internal and customer teams and performing out-of-hours changes as needed. ...

Senior Network Security Engineer - Hybrid (London)

Location
City Of London, England, United Kingdom
Secure is seeking a Network Security Engineer to join our 24x7 NOC in a hybrid role based in Central London. You will configure devices, manage firewalls and security policies, and sustain highly secure networks for a major financial services client. Ideal candidates have L2/L3 support ...

Senior AI Security Engineer - Hybrid, Flexible Hours

Location
Greater London, England, United Kingdom
leading AI organization in Greater London is seeking a Security Engineer to safeguard AI systems. Your role will involve building security for large-scale AI clusters and creating secure development practices. Ideal candidates will have significant software engineering experience, a Bachelor's degree in a relevant field ...

Senior AI Security Engineer

Location
Greater London, England, United Kingdom
United States Digital Space LLC is seeking a Security Engineer to safeguard AI systems across multi-cloud and on-prem environments. You will implement IAM, network segmentation, and secure CI/CD pipelines, driving security by design across teams and platforms. You will mentor engineers, shape hiring ...

Senior Offensive Security Engineer: Lead Pen Tests & Cloud

Location
Greater London, England, United Kingdom
Klarna is seeking an experienced Offensive Security Engineer to perform penetration testing across internal and public-facing systems. You will triage Bug Bounty submissions, analyze variants, and assess third-party integrations within Klarna's AWS microservice stack. You will build tooling and provide hands-on guidance to developers … teams. You will bring strong coding insight for Java and Node.js, and you’ll participate in training and workshops to spread offensive security practices #J-18808-Ljbffr ...