276 to 300 of 326 Permanent Senior Security Engineer Jobs

Senior FinCrime Engineer — Scam Prevention & Security

Location
Greater London, England, United Kingdom
Wise in London is seeking a Senior Software Engineer II for the FinCrime - Scam Prevention Team. You will own end-to-end delivery, applying Java and Spring to scale defenses against fraud and protect customer funds. The role balances backend work (80%) and frontend (20%), with an emphasis ...

Senior 3rd-Line Network & Security Engineer (Fortinet/Cisco)

Location
Gateshead, England, United Kingdom
Aspire Technology Solutions in Gateshead is seeking a 3rd Line Network Support Engineer to own complex network and security faults. You will work hands-on across our Fortinet and Extreme stack, with Cisco in customer environments, and serve as a trusted technical authority for the service desk. ...

Senior Software Engineer, Endpoint DLP & Security (Go/Kernel)

Location
Greater London, England, United Kingdom
Fortinet, Inc. is seeking a Senior Software Engineer to join the Agent Endpoint DLP team in London. The role focuses on kernel and OS-level development for the FortiDLP endpoint agent, with ownership of new features and maintenance of existing functionality. You will work in a cross-functional … primary language while expanding proficiency in other languages. The role requires strong coding practices, collaboration across teams, and a commitment to security and #J-18808-Ljbffr ...

Senior Infrastructure Integration & Security Engineer

Location
Glasgow, Scotland, United Kingdom
Central Business Solutions, Inc. is seeking an Infrastructure-focused engineer to join the platform engineering team in Glasgow. The role emphasizes integrating, testing, securing, and improving multiple infrastructure codebases with a focus on vulnerability remediation and secure production rollouts. The candidate will design robust remediation strategies, validate changes ...

Senior Network Engineer - Global SDN, Automation & Security

Location
Banbury, England, United Kingdom
Haas F1 Team is seeking a Senior Network Engineer based in Banbury, UK. You will own the global networking estate, driving availability, performance, security and automated modernization across on-prem, cloud and trackside environments. Responsibilities include network design, implementation, incident management and cross-functional collaboration. You will ...

Senior Platform Engineer (RHEL) – Hybrid Security Lead

Location
Yeovil, England, United Kingdom
Leonardo Worldwide Corporation in Yeovil is seeking a Senior Platform Engineer to drive the design and support of critical platforms that enhance national security. This role combines technical expertise and leadership, focusing on platform delivery, maintenance, and improvement within defence and public sector services. The position offers ...

Senior Software Engineer — Hybrid, Mission-Critical Security

Location
Manchester, England, United Kingdom
GCHQ, the UK intelligence agency, is seeking a Senior Software Engineer in Cheltenham or Manchester to help design and deliver mission-critical software. You will contribute to architecture, code quality, and DevOps practices, with a focus on scalable, secure systems. Candidates should have strong skills in C++, Golang ...

Senior Software Engineer — Cross-Platform Security Leader

Location
Greater London, England, United Kingdom
Everfox is seeking a Senior Software Engineer to support our London team. You will split time between hands-on work on cross-platform desktop and mobile apps and managing delivery across the end-point software layer of the Hardsec product line. You will shape and deliver end-point ...

Senior Horizon VDI & Endpoint Security Engineer

Location
Manchester, England, United Kingdom
Sterling Computers Corporation in Manchester is seeking an experienced Infrastructure Engineer to own and secure the Omnissa Horizon VDI, thin clients, and company-managed laptops across the UK. You will harden, monitor, patch and maintain the Horizon environment, work with security and operations teams, and travel to customer ...

Senior AI Compliance, Risk & Security Engineer

Location
Cambridge, England, United Kingdom
solutions, architectures, algorithms, models and data flows built and operated in Danaher Enterprise AI Solutions, identifying potential compliance, regulatory, privacy, cybersecurity, security, ethical and operational risks before solutions reach production. Partner with Governance, Enterprise Data, Product Owners, Architects, AI Scientists and Engineers to ensure AI solutions are designed, built … risk mitigation throughout the solution lifecycle. Guide the team in identifying and mitigating risks related to model behaviour, bias, explainability, robustness, reliability, cybersecurity, security, privacy and regulatory compliance, enabling solutions built by our organisation to be industrialised and scaled confidently across Danaher. The essential requirements of the job include ...

Senior Platform Engineer — Cloud, Security & Leadership

Location
Greater London, England, United Kingdom
Atos is seeking a Lead Platform Engineer to design, deliver and operate enterprise platforms supporting major client transformation programmes. The role blends hands-on engineering with people leadership and customer engagement to ensure secure, scalable platform solutions aligned to business outcomes. The successful candidate will work with client stakeholders ...

Senior AI Governance & Security Engineer

Location
Cambridge, England, United Kingdom
platforms, assess data and regulatory risks, and partner with diverse teams to enable scalable, trusted AI across operating companies. The role emphasizes responsible AI, security, privacy and compliance, with opportunities to influence governance practices and production deployments in regulated environments. #J-18808-Ljbffr ...

Senior Network Engineer: SD-WAN, Security & Enterprise Networking

Location
Pentrebach, Wales, United Kingdom
General Dynamics Land Systems UK is seeking a full-time Senior Network Engineer at our Merthyr facility in Wales. The role offers a salary of £45,600 to £57,000, depending on experience, with a proactive, growth-focused mindset and strong team collaboration. The successful candidate will support … implement and maintain the UK network, drive security posture, and work across cross-functional teams to ensure reliable operations. #J-18808-Ljbffr ...

Senior Cisco Security Network Engineer (Contract,18 months)

Location
City Of London, England, United Kingdom
Gujral is seeking a Senior Network Specialist with a strong security focus on Cisco to join its London-based operations. The role emphasizes BAU support, secure design, and scalable solutions for a global environment. The candidate will lead firewall design, IPS deployment, and the migration to a refreshed … security framework while maintaining high-availability networking across data centres and branch interconnectivity. #J-18808-Ljbffr ...

Senior Data Engineer — AI Security Data Platform

Location
Greater London, England, United Kingdom
Refractal, an AI security company, is seeking an experienced Data Engineer to own production data pipelines and the evidence store used by auditors. You will design the data model, build streaming and batch layers, and ensure data quality and retention controls for regulated customers. You will collaborate with … data scientists and security engineers to prepare training datasets, and support compliance reporting against AI Act, NIST RMF, and ISO standards. #J-18808-Ljbffr ...

Senior Customer Success Engineer - Enterprise Security

Location
Greater London, England, United Kingdom
ThreatAware is hiring our first Senior Customer Success Engineer to lead technical outcomes for enterprise customers in London. This hands-on role requires configuring integrations, building playbooks, and owning the technical success plan across Tier 1-3 accounts. You'll work closely with CISO/CIO stakeholders, drive ...

Senior Platform Engineer: AI-Ready Infra & Security

Location
Slough, England, United Kingdom
Intellias is seeking a senior infrastructure platform engineer in the UK to advance AI adoption across on-prem environments. You will collaborate with engineering teams to turn pain points into scalable platform features, automate operations, and build self-service workflows. The role emphasizes strong Python, Linux, Terraform/ ...

Senior IT Engineer - Hybrid, Cloud & Security Leader

Location
City of Edinburgh, Scotland, United Kingdom
leading IT services provider in Edinburgh is seeking a Senior IT Engineer. In this hybrid role, you will take ownership of technical issues, lead projects, and mentor colleagues. Responsibilities include supporting clients' IT infrastructure and ensuring security practices are enforced. The ideal candidate has extensive experience with Microsoft ...

Senior Network Ops Engineer - Cloud & Security

Location
Crawley, England, United Kingdom
Retirement Solutions within Equiniti is seeking a Staff Network Operations Engineer to design, implement and maintain secure, scalable network solutions across cloud, hybrid and on‐prem environments. You will lead complex initiatives, set engineering standards and act as a senior technical authority for major incidents. You will mentor … engineers, drive automation with Python/Ansible and collaborate with Architecture, Security, Product and Service teams to meet evolving business needs. #J-18808-Ljbffr ...

Senior Full-Stack Engineer, AI Security Platform (Remote)

Location
Greater London, England, United Kingdom
Dynamo AI is seeking a Senior Full Stack Engineer to own the production systems behind Agent Warden, including backend services, frontend dashboards, CLIs, and deployment infrastructure. You will ship features quickly, keep complexity low, and ensure enterprise-grade reliability for guardrails and observability. The role is backend‐heavy ...

Senior Cloud & Network Engineer – Azure, Security & Growth

Location
Greater London, England, United Kingdom
design, manage and improve our global network infrastructure, spanning on‐premise data centers and Microsoft Azure. You will own routing, switching, firewall, VPNs and security controls, ensuring high availability and resilience across environments. You will collaborate with cloud and security teams to drive automation, strengthen connectivity, and support ...

Senior IT Systems Engineer: Microsoft 365 & Security

Location
Maidenhead, England, United Kingdom
technology and business consultancy seeking a Senior IT Systems Engineer to support and secure our Microsoft 365 environment. You will administer Intune, enforce MFA/Conditional Access, and strengthen device security for colleagues in the UK and India. You will configure laptops, manage Windows Autopilot, automate tasks ...

Senior Solutions Engineer, AdTech & Security Integrations

Location
Greater London, England, United Kingdom
HUMAN is seeking a Solution Engineer to join the Customer Success team and manage end-to-end client integrations across our Advertising and Cybersecurity products. You will coordinate with Sales, Product, Operations, Engineering and Detection to deploy, configure and troubleshoot services for clients. You’ll develop technical docs, understand ...

Senior Network Engineer – Enterprise Security & DC (Onsite)

Location
Guildford, England, United Kingdom
leading IT company is seeking an experienced Network Engineer to support and enhance complex, high-availability network environments. The candidate should have 6–10 years of hands-on experience in enterprise network security, strong skills in Cisco and Check Point technologies, and the ability to work collaboratively across ...

Senior Backend Engineer - Cloud Video Security (Hybrid)

Location
Uxbridge, England, United Kingdom
Motorola Solutions is seeking a Backend Engineer for the Alta Video team in Uxbridge. The role focuses on developing the core backend of a cloud-based video management system, including distributed services for cameras, access control, and sensors. You will work within an agile team that values autonomy, collaboration … quality and security, with a hybrid pattern requiring 1-2 days in the office weekly. #J-18808-Ljbffr ...