1 to 25 of 158 Senior Security Engineer Jobs in London

Senior Application Security Engineer - DevSecOps & Cloud Security

Hiring Organisation
Additional Resources
Location
London, UK
Employment Type
Full-time
/AR/070467Job Type: Full-time, PermanentSalary: 70,000 - 80,000Location: LondonSector: ITPosted: 2026-07-02An opportunity has arisen for a Senior Application Security Engineer to join a well-established health research organisation and charity that supports large-scale medical research to improve disease prevention … diagnosis and treatment. As a Senior Application Security Engineer, you will play a key part in integrating security throughout the software development lifecycle, working alongside engineering and cloud teams to build, improve and maintain secure applications, platforms and deployment processes. This is not a traditional vulnerability ...

Senior Application Security Engineer / DevSecOps Engineer

Hiring Organisation
Additional Resources
Location
London, United Kingdom
Employment Type
Permanent
have a background in Application Security, DevSecOps or Product Security , with hands-on experience embedding application security into the SDLC If so, this could be an opportunity worth considering. Join a well-established health research organisation and charity supporting large-scale medical research. You will work closely … with engineering, architecture and cloud teams to integrate security throughout the software development lifecycle. Microsoft Azure and KQL experience are essential , alongside relevant experience in CI/CD, Kubernetes, API security, security-as-code and security automation . This is a hands-on application security ...

Senior Security Engineer Network IAM SOC - FinTech

Hiring Organisation
Client Server
Location
London, England, United Kingdom
Senior Security Engineer (Network IAM SOC) London/WFH to 100kAre you a senior, hands-on Security Engineer with a strong networking background You could be progressing your career at a well-funded and profitable FinTech scale-up.As the Senior Security Engineer, you'll take ownership of day-to-day security engineering, improving existing controls and developing the organisation's security architecture as the business scales. Network security will be a key focus, including firewalls, secure connectivity, access controls and the continued development of Zero Trust principles.You ...

Senior Security Engineer Network IAM SOC - FinTech

Hiring Organisation
Client Server
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Senior Security Engineer (Network IAM SOC) London/WFH to £100k Are you a senior, hands-on Security Engineer with a strong networking background? You could be progressing your career at a well-funded and profitable FinTech scale-up. As the Senior Security Engineer, you'll take ownership of day-to-day security engineering, improving existing controls and developing the organisation's security architecture as the business scales. Network security will be a key focus, including firewalls, secure connectivity, access controls and the continued development of Zero Trust ...

Senior Application Security Engineer - Product Security & DevSecOps

Location
London Borough of Islington, England, United Kingdom
Senior Application Security Engineer - Product Security & DevSecOps 27 Goswell Rd., Barbican, London EC1M 7AN About Us Duco is on a mission to reduce the time spent on data-related work by 90%. Our enterprise data automation platform empowers teams to work more efficiently and meaningfully … largest international banks, as well as brokers, exchanges, asset managers, hedge funds, administrators, service providers and corporates. The opportunity We are seeking an experienced Senior Application Security Engineer to take ownership of security across our software development lifecycle (SDLC). In this role, you will establish ...

Senior Security Engineer

Location
Greater London, England, United Kingdom
Staff Software Security Engineer Salary: Up to £135,000 + Benefits Location: London (Hybrid – 3 days per week in the office) We are currently looking for a Staff Software Security Engineer to join a fast-growing, innovative technology business operating at the forefront … data-driven products. This is an exciting opportunity to join a highly collaborative, engineering-led environment where security is viewed as a key enabler of innovation. Reporting to the Head of Engineering, the Staff Software Security Engineer will play a pivotal role in shaping the organisation ...

Senior Security Engineer - Enterprise Security

Location
Greater London, England, United Kingdom
Senior Security Engineer - Enterprise Security ID:JR12230 (for internal use only) Who we are Samsara (NYSE: IOT) is the pioneer of the Connected OperationsTM Cloud, which is a platform that enables organizations that depend on physical operations to harness Internet of Things (IoT) data to develop … public company, you’ll have the autonomy and support to make an impact as we build for the long term. About the role: The Senior Security Engineer – Enterprise Security shares ownership of the day-to-day operation of the Samsara security environment. You will keep ...

Senior Azure Security Engineer

Location
City of Westminster, England, United Kingdom
year I've learnt more here than I have at Microsoft and PwC.” - CyberOne Consultant About CyberOne CyberOne is a pure-play Microsoft security partner dedicated to helping enterprises realise the full value of the Microsoft Security portfolio—across Defender XDR, Sentinel, Entra, Purview, Intune, Copilot for Security … more. We combine deep technical expertise with outcome-driven services that accelerate secure cloud adoption, modernise threat protection and simplify compliance. Job Title: Senior Azure Security Engineer Location: Hybrid; 1 day per month reporting in London office Employment Type: Full-time Purpose of Role We are seeking ...

Senior Application Security Engineer

Location
Greater London, England, United Kingdom
Senior Security Engineer – Mobile & Application Security We are looking to hire two Senior Security Engineers with a strong focus on mobile application security to help raise the security bar across our mobile and backend platforms. This is a hands‐on role, working … closely with engineering and product teams to identify, design, and implement effective security controls throughout the development lifecycle. Key Focus Areas Mobile App Security (iOS & Android) Authentication and authorization mechanisms Secure data storage Runtime protections and hardening techniques API Security OAuth and token-based authentication Abuse prevention ...

Senior Security Engineer

Location
Greater London, England, United Kingdom
every product team at hx runs into, so the vertical streams can focus on building features for customers. Right now that means deployments, observability, security, AI observability tooling and a permission service that other value streams will build on. I’m hiring a Senior Security Engineer to join us as our second security hire. The foundations are already in place. We’ve chosen and implemented our tooling, and our repositories and cloud environments are onboarded. The next step is shaping how security actually works here. This won’t be a traditional, hierarchical security ...

Senior Security Engineer - UK

Location
City Of London, England, United Kingdom
across the globe, and we operate as a trusted provider of digital commerce systems for leading retailers. Position summary OneView is looking for a Senior Security Engineer to join our DevSecOps team and own the growth and ongoing management of our InfoSec program, covering cloud-hosted applications … infrastructure, security culture, and customer security requirements. You write security policy and standards, which the Sr. Director of Platform Engineering approves, and design the controls that implement them. The team's technical product owner ranks security work on the backlog with everything else, and platform engineers ...

Staff / Senior Staff Security Engineer, Vinted Pay

Location
Greater London, England, United Kingdom
Staff/Senior Staff Security Engineer, Vinted Pay London, United Kingdom Vinted Marketplace Brief info about Vinted Our mission is to make second-hand the first choice, and we're looking for people who want to help us get there. Every day, we work together to help … grown with offices across Europe, supported by a team of over 2,000 people. Information about the position As Staff/Senior Staff Security Engineer in Vinted Pay, you will be the staff‐level security engineer inside our regulated payments business - and the person ...

Senior Security Engineer

Location
City Of London, England, United Kingdom
Senior Security Engineer Department: CISO Employment Type: Permanent - Full Time Location: UK - London Description At CFC, technology is at the heart of everything we do. We are looking for Senior Security Engineers to act as hands on problem-solvers and subject matter experts in their … security and/or privacy domain, guide other people through complex issues, and lead continuous improvement of security governance, management and operations. This is a lead individual contributor role able to both implement and verify automated controls in detection and response, identity and access, data protection, product security ...

Senior Security Engineer Network IAM SOC - FinTech

Hiring Organisation
Client Server
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Senior Security Engineer (Network IAM SOC) London/WFH to £100k Are you a senior, hands-on Security Engineer with a strong networking background? You could be progressing your career at a well-funded and profitable FinTech scale-up. As the Senior Security Engineer, you'll take ownership of day-to-day security engineering, improving existing controls and developing the organisation's security archite click apply for full job details ...

Senior Cloud Security Engineer (GCP) - Engine by Starling

Location
Greater London, England, United Kingdom
able to interact and collaborate in person. Engineering at Engine by Starling —https://enginebystarling.com/careers/engineering/As a Security Engineer at Engine, you'll be working on helping to keep our infrastructure secure and compliant and our staff safe and productive. … working on projects covering identity and access management, cloud and network security, vulnerability management, security monitoring, security hardening, compliance reviews, and more. It's a very varied role with lots of close interaction with the infrastructure, security engineering, cross-cutting and compliance teams. We are looking ...

Senior Security Engineer

Hiring Organisation
Cohere
Location
London, UK
Employment Type
Full-time
Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We're training and deploying frontier models for enterprises who are building AI systems. We believe that our work … technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! As a Senior Security Engineer you will: Serve as trusted advisor to team's leadership and partner teams by clearly articulating business risks associated with ...

Senior Security Engineer

Location
Greater London, England, United Kingdom
Senior Security Engineer A Fintech requires a Contract Senior Security Engineer who will be responsible for enhancing threat detection, SIEM capabilities and incident response across a complex, cloud native environment. The role has a strong focus on automation and AI-driven SecOps, using tools … such as CrowdStrike and Wiz to improve security monitoring, detection and response capabilities. Day Rate: £500-£550pd IR35 Status: Outside Travel: 5 days a week in Central London Office Duration: Initial 6 months Key Responsibilities: Build, develop and continuously improve SIEM detection capabilities, creating and refining complex detection rules ...

Senior Security Engineer

Location
London Borough of Islington, England, United Kingdom
largest international banks, as well as brokers, exchanges, asset managers, hedge funds, administrators, service providers and corporates. The opportunity We are seeking an experienced Senior Security Engineer (Cloud & SecOps) to join our Information Security team. In this role, you will take ownership of threat detection, response … prevention across our AWS-hosted SaaS platform. As part of our continued investment in security operations, you will serve as the internal owner of both our Security Information and Event Management (SIEM) platform and our managed Security Operations Centre (SOC). You will define our detection strategy ...

Senior Information Cloud Security Engineer

Location
Greater London, England, United Kingdom
Practice Group/Department: IT Security - Operations and Risk Job Description Norton Rose Fulbright is a global law firm with more than 3,000 lawyers advising clients across locations in the United States, Europe, Canada, Latin America, Asia, Australia, Africa and the Middle East. We provide a full scope … world-wide. They describe our culture and personality both internally and externally, the way we work and what we stand for. The Role The Senior Information Security Engineer is a senior technical role within the Global Information Security function, focused on securing cloud platforms, cloud ...

Senior Cloud & Security Engineer

Location
Camden Town, England, United Kingdom
Senior Cloud & Security Engineer Application Deadline: 13 November 2026 Department: Technology Employment Type: Permanent Location: Great Ormond Street Hospital Children's Charity Reporting To: Daniel Bourne Compensation: £68,000/year Description Are you an experienced Cloud and Security Engineer with a passion for platform … engineering, cloud-native architecture and building secure, scalable infrastructure? This is an exciting opportunity for a Senior Cloud and Security Engineer to help shape and evolve Great Ormond Street Hospital Children's Charity's cloud platform, playing a key role in our cloud-first transformation and Cyber ...

Senior Security Engineer

Hiring Organisation
SSR Contract & Technical
Location
London, Oval, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum
Senior Security Service Engineer Location: North or South London Salary: £45,000 - £50,000 + Overtime + Benefits + Career Progression We're seeking an experienced Senior Security Service Engineer to join a growing security systems provider, maintaining and supporting a range … commercial CCTV, Access Control and Intruder Alarm systems. Requirements Strong experience within the electronic security industry Strong fault-finding and diagnostics experience Knowledge of CCTV, Access Control and Intruder Alarm systems Excellent customer-facing skills Full UK driving licence Responsibilities Service, maintain and troubleshoot security systems Diagnose ...

Senior Security Engineer

Hiring Organisation
Duco
Location
London, UK
Employment Type
Full-time
largest international banks, as well as brokers, exchanges, asset managers, hedge funds, administrators, service providers and corporates. The opportunityWe are seeking an experienced Senior Security Engineer (Cloud & SecOps) to join our Information Security team. In this role, you will take ownership of threat detection, response … prevention across our AWS-hosted SaaS platform. As part of our continued investment in security operations, you will serve as the internal owner of both our Security Information and Event Management (SIEM) platform and our managed Security Operations Centre (SOC). You will define our detection strategy ...

Senior Microsoft Security Project Engineer - Purview / Defender

Location
City Of London, England, United Kingdom
Senior Microsoft Security Project Engineer £55,000 – £75,000 London/South East/Home-based Are you a Microsoft Security Engineer or Consultant who wants to own projects rather than just be given tasks to complete? We're working with a leading … Solutions Provider looking for a Senior Microsoft Security Project Engineer to become one of their internal Microsoft Security SMEs. This isn't a BAU security role. You’ll take customer security projects from discovery and scoping through planning, hands‐on technical delivery, documentation ...

Senior Security Engineer - AI

Location
Greater London, England, United Kingdom
Senior Security Engineer – AI Full-time permanent hire On-site UK based applicants only with full right to work status (no sponsorship) Our client builds and operates petabyte scale platforms and massive ML infrastructure. They utilise AI extensively across their organisation and require someone to lead their … security strategy across the entire business. This business hire the very best and brightest individuals globally. Expect to be surrounded by the top 0.001% of Engineers. As a Senior Security Engineer, you'll be acting as the technical authority across the full AI lifecycle. Working with ...

Senior Product Security Engineer

Location
Greater London, England, United Kingdom
Paris, Barcelona, Milan, Edinburgh and Madrid. Now is a brilliant time to join us and help shape the future of travel. Introducing the Trainline Security Team Our Security team is dedicated to designing, implementing and monitoring the controls that keep Trainline resilient in a fast-evolving threat landscape. … part of our ongoing mission to mature Trainline's security capabilities, you'll help protect the digital channels that power billions of pounds in annual ticket sales, keeping our systems secure, resilient and ready for what's next. As a Senior Product Security Engineer ...