101 to 125 of 355 Senior Security Engineer Jobs in the UK

Senior Firewall / Security Network Engineer

Location
Greater London, England, United Kingdom
Senior Firewall/Security Network Engineer Network Operations Group Full time UK-Remote UK-London Office 8x8 connects our customers and teams globally, empowering CX leaders with performance and insights to make smarter decisions, delight customers, and drive lasting business impact. We're hiring a Senior Firewall/Security Network Engineer to own the design, delivery, and operation of our firewall and network-security estate across on-prem data centers and cloud (AWS, OCI). This is a hands‐on senior role: you'll set the firewall architecture — especially for hybrid ...

Senior Security Engineer: AI-Driven Detection & Response

Location
Greater London, England, United Kingdom
HackerOne is hiring a Senior Security Engineer in a remote role with focused responsibilities in detection and response for a cloud-native environment. You will design, build, and maintain detection capabilities, develop AI-powered tooling, and lead incident response while collaborating with engineering to improve observability ...

Senior Network Security Engineer

Hiring Organisation
Bright Purple Resourcing
Location
Scotland, United Kingdom
Employment Type
Permanent
Salary
£80,000
Senior Network Security Engineer Scotland/Hybrid Schedule: Rotating shift (includes nights/weekends) Salary up to £80,000 You will own incidents end-to-end across Incident, Major Incident, Change, Problem, and Service Request workflows (ITIL-aligned), leading real-time response to live DDoS attacks ...

Senior Cyber Security Engineer

Hiring Organisation
DGH Recruitment
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Senior Cyber Security Engineer/Specialist Working policy: 4 days per week required in the office during probation, 3 days thereafter. Reporting into my clients Infrastructure Engineering Manager, the role will be responsible for the ownership and continual development of cybersecurity controls and security architecture click ...

Senior Network Security Engineer

Hiring Organisation
Hays
Location
Sheffield, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
Senior Network Security Engineer Permanent £50,000 - £70,000 10-15% Performance Bonus + more benefits Location: Hybrid - Office in Sheffield City Centre Your new company Due to continued organisational growth, I'm back on the lookout for some talented Network Security Engineers to work ...

Senior Network Security Engineer

Hiring Organisation
Bright Purple Resourcing
Location
United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 Annual
Senior Network Security Engineer Scotland/Hybrid Schedule: Rotating shift (includes nights/weekends) Salary up to £80,000 You will own incidents end-to-end across Incident, Major Incident, Change, Problem, and Service Request workflows (ITIL-aligned), leading real-time response to live DDoS attacks ...

Senior Cloud Security Engineer — Remote

Location
United Kingdom
Aalyria Technologies, Inc. is seeking a Senior Security Engineer to manage cloud security and network compliance operations. The role is vital in protecting our cloud infrastructure and ensuring alignment with CMMC L2 and NIST standards. Ideal candidates will have 5+ years in infrastructure security, with ...

Senior Infrastructure Security Engineer | Hybrid & Flexible Hours

Location
Greater London, England, United Kingdom
Tain, we are seeking a Senior Security Engineer (Infrastructure) to strengthen security across cloud and on‐prem environments. The role collaborates with INO, Corporate IT and Platform Engineering to enforce scalable controls, improve visibility and resilience, and mature security practices in high‐availability setups. … candidate will apply expertise in networking, cloud, edge security, and infrastructure hardening, helping drive incident response, secure configurations and tooling across #J-18808-Ljbffr ...

Senior Application Security Engineer

Location
Manchester, England, United Kingdom
part of it. Role Purpose Matillion is built around small development teams utilising a modern, cloud-based technology stack to deliver products. The AppSec Engineer will work in an engineering capacity to product and engineering teams to ensure security is baked into the product from the design phase … creating a SecDevOps workflow. What you will be doing Design Establish and lead security champions programme across the development squads Build functional and nonfunctional requirements for the application in conjunction with the product team Input abuse case stories into the product backlog Evangelise security across the product team ...

Senior Cloud Security Engineer (Contract) - Azure & SIEM

Location
Greater London, England, United Kingdom
Flagstone is seeking a senior security engineer for a contract role with hands-on experience across cloud security, SIEM, and incident response. You will own detection capabilities, optimize Defender XDR/Cloud, and contribute to security tooling and threat modelling. The role requires practical Azure … security expertise, IaC skills with Terraform or Bicep, and a focus on reducing risk in a fintech environment. #J-18808-Ljbffr ...

Senior Cloud Network & Security Engineer , Vice President

Location
Greater London, England, United Kingdom
seeking a highly motivated Senior Cloud Network & Security Engineer to join our Global Network Architecture & Engineering team. This role is focused on designing, securing, automating, and evolving next-generation network services across a large global enterprise. Working across AWS, Azure, Cloudflare, and other cloud platforms, you will … help define and engineer secure, scalable, and resilient connectivity spanning cloud, data centre, campus, branch, internet, SaaS, and hybrid environments. The role combines cloud networking, cloud security, internet edge services, platform engineering, network automation, and AI-enabled operations. You will play a key role in shaping the firm ...

Senior Information Security Infrastructure Engineer - Security Architecture - InfoSec

Location
United Kingdom
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: Join the InfoSec - Security Architecture team as a Senior Information Security Infrastructure Engineer , where you'll have the chance to play a key role in protecting our organization's data and systems. This position offers the opportunity to work on meaningful projects that directly impact our security posture and collaborate with a skilled team passionate ...

Senior Application Security Engineer (Remote)

Location
Greater London, England, United Kingdom
grow your career. Engineering at Brex Engineering at Brex is about building systems that scale with speed and intention. Our teams span Software, Data, Security, and IT, and operate with high autonomy and deep collaboration. We tackle hard technical problems, own our outcomes, and push for excellence at every … level - from architecture to deployment. It's an environment where engineering is a craft, and builders become leaders. What you'll do As a Senior Application Security Engineer, you will focus on finding and responding to security vulnerabilities across the Brex platform. In this role ...

Senior Cloud Security Engineer

Hiring Organisation
Vitality Corporate Services Limited
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 Annual
About The Role Team Information Security Working Pattern - Hybrid 2days per week in the Vitality Bournemouth Office.Full time, 35 hours per week. We are happy to discuss flexible working! Top 3 skills needed for this role: Cloud Security Expertise Security Operations & Controls experience Threat & Vulnerability Management What … this role is all about: We're looking for a Senior Cloud Security Engineer to click apply for full job details ...

Senior AI Security Engineer — Production-Grade Cyber Defense

Location
Welwyn Garden City, England, United Kingdom
Tesco Technology seeks a Senior Security Engineer to pioneer AI-driven security capabilities for Tesco’s retail ecosystem. You will design, build, test, and operate production-grade solutions that reduce risk and strengthen cyber defence. You will lead engineering approaches, ensure secure design, and collaborate across … teams to drive measurable improvements while enabling scalable security delivery. #J-18808-Ljbffr ...

Senior GCP Security Engineer - Hardened GKE & Cloud

Location
Greater London, England, United Kingdom
Engine by Starling is seeking an experienced Senior GCP Security Engineer to join the Security Engineering team. You will own the security foundations of our Google Cloud Platform environment and work on automation, security controls, and GKE hardening. You'll collaborate with Information Security, Infrastructure, and cross-functional teams to design and implement cloud security architectures, threat prevention, and compliance processes in a fast-paced fintech setting. #J-18808-Ljbffr ...

Senior Product Security Engineer: Embedded Systems & AI

Location
Greater London, England, United Kingdom
Anduril Industries seeks a Senior Product Security engineer to develop novel security tooling, discover vulnerabilities, and secure our AI-enabled and autonomous systems. You will perform architecture reviews, analyze firmware and software, and collaborate with hardware and software teams to harden products across aerospace, defence … sensing domains. You will lead security feature development, author security documentation, and advance threat modelling, risk assessments, and security testing #J-18808-Ljbffr ...

Senior Security Engineer (IT/OT)

Hiring Organisation
Oscar Associates (UK) Limited
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 Annual
Senior IT/OT Cyber Engineer London £80-90k + Very Competitive package A well known client of ours with a growing international presence is looking for a Senior IT/OT Cyber Security Engineer to protect the systems that keep its stores, distribution … centres and operational sites running around the clock. This is a rare hybrid of enterprise IT security and Operational Technology - you'll sit at th click apply for full job details ...

Senior ICT & Security Design Engineer - London, Bicester or Newcastle

Hiring Organisation
ENGIE
Location
London, UK
Employment Type
Full-time
Senior ICT & Security Design Engineer - London, Bicester or NewcastleRED are an expanding international M&E consultancy, with a proven track record in low energy design, focused on providing excellent design solutions to clients. Through our market leading technical expertise, we enable the world's digital infrastructure … fellow project stakeholders. We add value with our people, client service ethos, global delivery strategy, technical ability, and attitude. We now seek a Senior ICT & Security Engineer to be based out of our London, Bicester or Newcastle office. Role ResponsibilitiesCarries out cost and profit diagnosis on projects ...

Senior Security Engineer: Observability, Automation & Risk

Location
City Of London, England, United Kingdom
seeking a Staff Security Engineer to advance security observability, automate controls and strengthen governance across its global tech estate. This senior individual contributor role partners with engineering, data, AI and digital workplace teams to raise security maturity in a fast-moving environment. You will design … scalable security observability, automate assurance and embed secure practices into products and platforms while driving measurable risk reduction and security outcomes at #J-18808-Ljbffr ...

Senior App Security Engineer: Lead Secure Platform

Location
Greater London, England, United Kingdom
Tripadvisor Experiences in London is seeking a Senior Application Security Engineer to lead security across our platform. You will design and implement advanced security measures, mentor junior engineers, and shape security practices across products and infrastructure. The role requires hands-on expertise in threat … modelling, vulnerability assessments, secure coding, SAST/DAST, and cloud security, with a track record of guiding teams and collaborating with product and engineering to embed #J-18808-Ljbffr ...

Senior Product Security Engineer

Hiring Organisation
Hackajob Ltd
Location
Southampton, Hampshire, South East, United Kingdom
Employment Type
Permanent, Part Time, Work From Home
cutting edge of fighter aircraft development? Our Electronic Warfare (EW) and Future Combat Air Systems (FCAS) Design Integrity team is seeking a Senior Product Security Engineer. In this role, you will be responsible for the delivery of product security activities throughout the engineering lifecycle, working closely with … multidisciplinary product teams across our Electronic Warfare and Future Combat Air business areas. You will play a key role in ensuring that security is embedded into the design and development of innovative defence solutions from concept through to delivery. This position is working on a hybrid basis and requires ...

Senior Security Research Engineer

Location
United Kingdom
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: The Elastic Security Endpoint Protections team researches, designs, and builds … visibility and prevention capabilities at the core of Elastic Defend, our endpoint and SIEM security solution. We are looking for a Senior Security Research Engineer to help lead our efforts to build innovative features that secure our users against the latest emerging threats. You will collaborate ...

Senior Cyber Security Engineer - Cloud, WAF & DevSecOps

Location
Manchester, England, United Kingdom
Experis UK is partnering with a UK-based organisation to strengthen cyber security capabilities across its web platforms and Azure cloud environment. The role is hybrid, with weekly office presence in Manchester. We seek a Senior Cyber Security Engineer to own the organisation's security posture, embed security best practices, and drive secure-by-design across applications, APIs, and infrastructure. This permanent role offers up to £60k annual pay plus performance bonus and a comprehensive #J-18808-Ljbffr ...

Senior Security Research Engineer, SONAR (Security Operations and Novel Adversary Research)

Location
United Kingdom
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: SONAR is the adversary research team within Elastic Security. We discover … malware reverse engineering, threat hunting, and vulnerability research, turn every discovery into protections that ship to customers, and share our work publicly through Elastic Security Labs. We want to make environments hostile to adversaries, and to put rare knowledge and tooling within reach of every defender. We are looking ...