1 to 25 of 34 Senior Security Engineer Jobs in London

Job Title: Senior Security Engineer Location: London (Hybrid Working Available) Salary: Competitive + Benefits Are you an experienced security professional ready to take on a senior technical leadership role? Were looking for a Senior Security Engineer to join a dynamic and globally connected organisation in the financial services sector. This is a … rare opportunity to play a pivotal part in shaping and maintaining cyber defence strategies across a complex international infrastructure. About the Role As a Senior Security Engineer , youll report to the IT Security Officer and work closely with another Security Engineer in a collaborative, expert-led team. You will lead the implementation, maintenance, and … continuous improvement of the organisations security systems and controls. From managing cutting-edge threat detection and prevention tools to supporting the delivery of cybersecurity training, you will be a hands-on leader in securing the business against evolving threats. Key Responsibilities Manage and optimise enterprise-grade security tools: WAF, DDoS, email and web security gateways, SIEM, SOAR More ❯

Our client is a fast-growing Commodities-Focused Financial Services Firm based in London with offices in the US and Asia. They are seeking to recruit a Senior Security Engineer to join their London team. Reporting to the IT Security Officer, you will work alongside the IT Security Engineer as part of a … man IT Security team. As the Senior Security Engineer, you will implement and maintain robust security systems and protocols across the IT infrastructure. You will conduct risk assessments and vulnerability scans, mitigate vulnerabilities identified in penetration testing, and implement preventative measures to protect against cyber threats. You will monitor the security infrastructure, detect and … respond to potential threats, and help mentor the IT security engineer. You will collaborate with the IT team to ensure compliance with security standards and best practices, acting as a key technical leader in safeguarding sensitive data and systems. Key Responsibilities/Duties Manage WAF and DDoS systems Manage the Web Security Gateway Manage the Email Security More ❯

work. Whether you're building on our platform, supporting our customers, or shaping our story: You can just ship things. About the Role: We are looking for aSenior Application Security Engineerto join our security team (reporting to the Head of Security). In this role, you will drive critical application security initiatives across Vercel's products … and platform. Your core focus will be onthreat modeling, open-source software security, secure code review, SDLC tooling, andbug bounty program management. You will support both our internal product engineering teams and customer-facing security programs, ensuring that security is embedded throughout our development lifecycle and that our platform earns the trust of developers and end-users … alike. As a senior member of the team, you will lead cross-organizational security projects and champion a security-first culture within Vercel's engineering organization. This is a high-impact role with broad scope - your work will not only secure Vercel's core infrastructure and applications (built with Next.js, Node.js, and serverless architecture), but also influence More ❯

Miro's Cloud Security team plays a critical role in ensuring the security, resilience, and integrity of Miro's platform infrastructure. We are entrusted with protecting both the foundational information assets and the collaborative experiences that enable our global customers to innovate with confidence. Operating as part of the broader Infrastructure organization, the Cloud Security team partners … closely with key engineering groups including Networking, Compute, and Observability to embed security deeply across Miro's cloud environment. The team also maintains strong alignment with our peers in the Security organization-such as Application Security and Detection & Response-ensuring a unified and strategic approach to securing our platform. At Miro, we are on a path to … achieving an industry-leading security posture. This ambition is reflected in our proactive governance frameworks, robust assurance and certification programs, and a long-term strategy anchored in automation, scalability, and risk-informed decision-making. About the Role Seeking a Senior Cloud Security Engineer to join our Cloud Security team. Your cloud and automation skills, combined More ❯

A fantastic award winning MSP is looking for a talented Senior Cyber Security Engineer to come and join their team. This is a fantastic opportunity for someone who wants to work for one of the best MSP and voted the best work place. The role is 3 days in the office and 2 days WFH. Excellent Benefits … benefits, Cycle to Work scheme, quarterly team nights out/events, monthly games night with pizzas and breakfast on Wednesdays Job Description This great MSP is looking for a Senior Cyber Security Engineer to join their expanding UK based Cyber Security Projects team. The ideal candidate would be someone that is already in a similar role … and has minimum of 1/2-year experience. As a Senior Cyber Security Engineer, you will be primarily responsible for deploying Security Technology Solutions for our clients together with assisting our Chief Information Security Officer with Cyber Essentials and Cyber Essentials Plus Audits and Assessment. You will be reporting to the Project Management Office More ❯

Senior Cyber Security Engineer Excellent opportunity for an experienced Cyber Security Engineer with MSP experience to join a high-performing team delivering security solutions across Microsoft technologies and supporting compliance frameworks. Full-time, permanent position based in London with hybrid working (3 days in office, 2 remote), offering up to £60,000 depending on … experience. Immediate start available - candidates with hands-on Microsoft Security experience and relevant certifications are highly encouraged to apply. To apply, please email Who are the client? Our client is a recognised UK-based Managed Services Provider with strong accreditations and a reputation for excellence in technology and employee development. They are an IASME certification body and work with … a broad client base across sectors to deliver robust cyber security strategies. The company is growing and offers an outstanding culture of innovation, development, and recognition. What will you be doing? This senior, client-facing cyber security position is ideal for someone who enjoys both technical implementation and supporting security frameworks such as Cyber Essentials. You More ❯

Senior Cyber Security Engineer Excellent opportunity for an experienced Cyber Security Engineer with MSP experience to join a high-performing team delivering security solutions across Microsoft technologies and supporting compliance frameworks. Full-time, permanent position based in London with hybrid working (3 days in office, 2 remote), offering up to £60,000 depending on … experience. Immediate start available - candidates with hands-on Microsoft Security experience and relevant certifications are highly encouraged to apply. To apply, please email Who are the client? Our client is a recognised UK-based Managed Services Provider with strong accreditations and a reputation for excellence in technology and employee development. They are an IASME certification body and work with … a broad client base across sectors to deliver robust cyber security strategies. The company is growing and offers an outstanding culture of innovation, development, and recognition. What will you be doing? This senior, client-facing cyber security position is ideal for someone who enjoys both technical implementation and supporting security frameworks such as Cyber Essentials. You More ❯

Senior Cyber Security Engineer Excellent opportunity for an experienced Cyber Security Engineer with MSP experience to join a high-performing team delivering security solutions across Microsoft technologies and supporting compliance frameworks. Full-time, permanent position based in London with hybrid working (3 days in office, 2 remote), offering up to £60,000 depending on … experience. Immediate start available - candidates with hands-on Microsoft Security experience and relevant certifications are highly encouraged to apply. To apply, please email Who are the client? Our client is a recognised UK-based Managed Services Provider with strong accreditations and a reputation for excellence in technology and employee development. They are an IASME certification body and work with … a broad client base across sectors to deliver robust cyber security strategies. The company is growing and offers an outstanding culture of innovation, development, and recognition. What will you be doing? This senior, client-facing cyber security position is ideal for someone who enjoys both technical implementation and supporting security frameworks such as Cyber Essentials. You More ❯

An impressive multinational Telecoms business is looking for a Senior Security Engineer to join its team based in London. Please note, this role is hybrid so you will be required to work in the office 3 days per week. As a Senior Network Security Engineer, you will be responsible for designing, implementing, and managing … security solutions that protect a large and high-profile network infrastructure. You will work closely with the team to proactively improve network security (both on-prem and cloud), detect threats and maintain a strong systems defence posture. In order to be suitable for this role you must have proven experience of designing, configuring and maintaining network security solutions. You will be a hands-on technical expert with deep knowledge of network security, firewalls, and cloud security (AWS/Azure). CISSP and/or CCNP Security accreditation are expected, while previous experience in the Telco sector would be advantageous to your application. This is an outstanding opportunity for an accomplished Network Security More ❯

who have our backs. If you're ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value. THE WORK: As a Senior Security Engineer, you will help Ripple design and build secure applications and infrastructure at scale. You will work closely with different Engineering teams to ensure we are … building securely to protect our business and our customers. WHAT YOU'LL DO: Be a security advocate and domain expert within the organization and be able to communicate security risk and concepts to both technical and non-technical audiences. Lead initiatives with Engineering teams to optimize threat models and mitigate risks. Encourage a positive security culture across … the Engineering organization. Relentlessly champion for security outcomes on behalf of our customers. Work with other engineering leaders to embed security into day-to-day development processes. Help proactively assess security risk through product deep dives, threat modeling, and design, architecture and implementation reviews Review and improve existing security processes related to product assessments, pen testing More ❯

Senior Network Security Engineer – 3-Month Initial Contract (Extension likely) Location: Onsite in West Drayton/Hayes, UK (5 Days per Week) Start: ASAP IR35: Outside IR35 Security Clearance: Will be sponsored for eligible candidates We’re not looking for just another engineer - we’re after a seasoned Network Security expert who’s ready … critical infrastructure at its core. If you thrive in a fast-moving, hands-on environment and want to work with cutting-edge tech, this contract is built for you. Senior Network Security Engineer The Tech Stack You’ll Own: Fortinet SD-WAN – Core to the network transformation Fortinet Firewalls – Design and deployment Cisco Nexus – High-performance switching … environments Cisco Wi-Fi/LAN Routing & Switching – Solid fundamentals essential Firewall & Security Architecture – Design, configure, secure Configuration Mastery – You’ll write and load full network configs What Makes This Role Different? Security Clearance provided – We’ll sponsor you if eligible. Outside IR35 – Work with freedom and flexibility. Real Possibility of Extension – This is just phase one of More ❯

Job Title: Senior Cyber Security Engineer Job Ref: SCSE-443 Closing Date: 25th July 2025 Summary We are seeking a Senior Cyber Security Engineer to join our London-based team. This role is critical in safeguarding our IT infrastructure and ensuring the resilience of our systems. You will be responsible for implementing and maintaining … security protocols, managing threat detection tools, and supporting the broader IT team in delivering secure and reliable services. You will play pivotal role in improving company security posture and internal best practices adoption. This is technical hands-on role. Senior Cyber Security Engineer will report to Director of Technology. Responsibilities Monitor, detect, respond, and manage … security incidents across on-prem, cloud environments, and social media services, on multiple platforms and operating systems, Manage relationships and work closely with third-party cyber security service providers. Manage and optimize security tools, including endpoint protection, Microsoft Intune, Entra, Azure, and external detection and response tools. Conduct vulnerability assessments and coordinate patch management cycles. Collaborate with More ❯

Job Title: Senior Cyber Security Engineer Job Ref: SCSE-443 Closing Date: 25th July 2025 Summary We are seeking a Senior Cyber Security Engineer to join our London-based team. This role is critical in safeguarding our IT infrastructure and ensuring the resilience of our systems. You will be responsible for implementing and maintaining … security protocols, managing threat detection tools, and supporting the broader IT team in delivering secure and reliable services. You will play pivotal role in improving company security posture and internal best practices adoption. This is technical hands-on role. Senior Cyber Security Engineer will report to Director of Technology. Responsibilities Monitor, detect, respond, and manage … security incidents across on-prem, cloud environments, and social media services, on multiple platforms and operating systems, Manage relationships and work closely with third-party cyber security service providers. Manage and optimize security tools, including endpoint protection, Microsoft Intune, Entra, Azure, and external detection and response tools. Conduct vulnerability assessments and coordinate patch management cycles. Collaborate with More ❯

distributed environment, operating at massive levels of scale. Businesses, from start-ups to enterprises, run their operations and applications on AWS' multi-tenant infrastructure. Key Job Responsibilities As a Senior Security Engineer, you'll help to build and manage services that detect and automate the mitigation of cybersecurity threats across Amazon's infrastructure. You'll work with … data scientists, software development engineers, and other security engineers across multiple teams to develop innovative security solutions. Our services protect the AWS cloud for all customers and preserve our customers' trust in us. You'll get to use the full power and breadth of AWS technologies to build services that proactively protect AWS customers, both internally and externally … from security threats. You will be working in a team of industry-leading security experts with UK customers to operate and continuously improve industry-leading security programs and processes. This team manages the underlying security programs and processes for personnel security, physical and logical accreditations, education, awareness and training, assurance, and cyber security. This position More ❯

Edinburgh - GB London - London, N1C 4AB GB (Primary) Manchester - Manchester, M2 7FL GB Travel Job Type Full Time Category Security Job Description Senior Security Engineer London, Manchester or Edinburgh About us Hoare Lea is a human-centric and planet-conscious engineering consultancy. We offer intelligent and sustainable solutions to complex design challenges for the built environment … throughout the UK and further afield. We provide a wide range of engineering and consultancy services, including acoustics, air quality, building services (MEP), fire, lighting, security and sustainability to name but a few. Together, our highly skilled teams use technical expertise and problem-solving skills to bring buildings to life. We ensure that whatever the building, its design is … our aim is to enable everyone to develop their knowledge, give their best, and enjoy what they do. About the role We have a brand-new opportunity for a Senior Security Consultant to join our team based in London, Manchester or Edinburgh. The Hoare Lea security engineering team includes chartered engineers and professionally registered security professionals More ❯

You will need to login before you can apply for a job. This boutique financial services firm is seeking a senior security engineer to implement and maintain its security tooling and systems. As part of a small security team (3 people), your role will be varied and will include managing firewalls, email security, cloud … Azure), IAM/PAM systems, security certificates, SIEM, and SOAR. As the Senior Security Engineer, you will have the opportunity to mentor and develop the security engineer. The successful candidate will have experience gained in a broad, hands-on security engineering position. Relevant certifications such as CISM and/or Microsoft certifications are desirable. More ❯

Senior Cloud Security Engineer Department: Engineering Employment Type: Permanent - Full Time Location: London Reporting To: Sami Eltamawy Compensation: £80,000 - £90,000/year Description London, office-based Freetrade's mission is to become the default place to invest. Investing has been too complicated and expensive for too long, keeping millions from making the most of their … to deliver an even better experience for our customers. We're on a mission to build a secure, scalable, and resilient cloud infrastructure-and we're looking for a Senior Cloud Security Engineer to lead the way. In this foundational role, you'll architect and build our cloud security program from the ground up, helping to … shape how we protect our systems, services, and users in an ever-evolving digital landscape. You'll work closely with our DevOps and Platform teams to integrate security deeply into our development and deployment pipelines. This is your chance to define the standards, select the tools, and create the practices that will safeguard our cloud ecosystem now and into More ❯

and challenges. We are dedicated to consistently updating our job descriptions to ensure we continue to lead in banking innovation. How you will contribute and key responsibilities: As a Senior Security Engineer, you will be instrumental in designing and implementing security measures for our mobile applications, services, and websites to meet the highest security standards. … Your expertise will help us continuously analyse and improve our security systems, ensuring that our products and services are not only secure by design but also comply with internal and external regulatory requirements. Other responsibilities include: Security Analysis and Improvement: Continuously analyse our security systems for potential improvements, ensuring that our defences remain at the forefront of … cybersecurity practices. Vulnerability Management: Proactively identify, assess, and remediate security vulnerabilities to maintain the integrity and confidentiality of our customer data. Security Automation: Automate security processes and procedures to enhance efficiency and effectiveness, reducing the risk of human error. Security Requirements and Solutions: Identify, define, and document system security requirements, providing well-considered recommendations to More ❯

environment where you will be making an impact on the financial lives of thousands of savers. We're regulated by the Financial Conduct Authority in the UK. As a Senior Security Engineer, you will play a key role in protecting our systems, networks, and data while ensuring compliance with industry leading security standards such as ISO … contributions will be essential in maintaining customer trust and safeguarding critical information assets. This role sits within thePlatform Engineering Teamand requires a strong technical background, hands-on experience with security tools, and a collaborative mindset to work effectively across teams. The role will involveplatform engineering activities, contributing to the design, implementation, and optimisation of scalable infrastructure. If you're … motivated by solving complex problems in a dynamic, fast-paced environment, this position is for you. What you will do: Develop and implement proactive security strategies, policies, and procedures to protect our systems, networks, and data assets. Lead regular security assessments, including vulnerability scans and penetration tests, identifying risks and driving remediation efforts. Monitor infrastructure for security More ❯

Senior IT Security Engineer London (Hybrid) £80,000 - £85,000 DOE + Bonus + Benefits Join a leading London-based broker and market maker with offices worldwide! We are looking for a Senior IT Security Engineer to play a vital role in safeguarding critical infrastructure and data, working as part of a close-knit … expert IT Security team. The Role You will be instrumental in developing, implementing, and maintaining security solutions that protect systems from ever-evolving cyber threats. You'll serve as the technical lead, drive key security initiatives, and play a pivotal role in mentoring junior team members. Key Responsibilities Monitor, manage, and respond to threats via SIEM, SOAR … and EDR platforms Conduct vulnerability scans and support remediation and risk mitigation efforts Oversee WAF, DDoS, VPN, and perimeter firewalls Manage Email and Web Security Gateways Administer MFA, SSO, PAM, MDM/MAM, and Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS systems Deliver cybersecurity awareness training and lead ad-hoc security projects More ❯

Position Overview We are seeking a Senior Azure Security Engineer to join our UK-based team. This role will be responsible for implementing and maintaining robust security solutions across our Azure cloud infrastructure. You'll play a key role in ensuring compliance, hardening environments, and leveraging Microsoft's security tools to protect our systems and … data. Key Responsibilities Security Architecture & Implementation Implement and maintain secure Azure architectures in line with best practices Develop and support cloud security policies and technical standards Conduct security assessments, risk analysis, and contribute to security roadmaps Collaborate with teams to integrate security into CI/CD and cloud-native applications Microsoft Security Stack Configure … and managed Sentinel provider on incident handling Compliance & Governance Help ensure compliance with ISO 27001, SOC 2, GDPR, and NIS2 Support configuration and monitoring in Microsoft Compliance Manager Maintain security documentation and assist in audit preparation Configure insider risk management, audit, and eDiscovery capabilities Track Secure Score and recommend improvements Incident Response & Monitoring Configure monitoring and alerts using Microsoft More ❯

we're building the next generation of digital health - AI-powered, privacy-first, clinically backed - to help our users know their body better. The job Your role as the Security Engineer will be pivotal in supporting Flo Health's overall security posture. Working alongside our small but powerful Security team, you will help protect our applications … and infrastructure by managing vulnerabilities, responding to incidents, and implementing security measures at scale. You'll also contribute to developing custom tooling and embedding security best practices into our product lifecycle to ensure we stay ahead of emerging threats. What you will do: Developing regular touchpoints with key stakeholders. Manage Vulnerabilities: Triage newly discovered vulnerabilities, investigate potential risks … verify that fixes are effective, and drive remediation efforts across teams. Implement Security Measures: Support teams by configuring WAF rules, setting rate limits, and deploying additional controls to protect our environment. Develop Custom Security Tooling: Contribute to the creation and maintenance of in-house tools that enhance our security capabilities and automation. Product Security Support: Assist More ❯

Digital threats are evolving rapidly while our solutions are growing in complexity . We are strengthening our SecOps function within our Software department! Are you an accomplished software engineer passionate about cyber security? Then this might be the opportunity for you. "I can quickly see the impacts of my work on our products. I'm grateful to work … side-by-side with passionate people from a range of disciplines who see security as an enabler for the future of our brand" - Åsmund Sand, Principal Security Engineer About the role We are now looking for a Senior Cloud Security Engineerwho can take ownership in the cyber security area. In the first year you … focus on identity and access management challenges to scale our current CIAM infrastructure, while also implementing new workflows. You will play a key role ensuring our solutions meet the security expectations of our customers, as well as the company's security requirements. At reMarkable, you will be challenged by a diverse technical landscape. We use GCP as our More ❯

Job Overview: As a Network Security Engineering team member, the Senior Network Security Engineer will specialise in firewalls and routing. The ideal candidate is a flexible, self-motivated individual who excels at multitasking and thrives in a fast-paced, challenging environment. This self-starter will bring ingenuity and expertise to design, implement, and maintain secure, scalable … solutions that connect on-premises and public cloud environments. The role emphasizes driving automation through Infrastructure-as-Code (IaC) and GitOps methodologies, ensuring optimal network performance, and integrating robust security measures. Responsibilities: Network Design and Implementation: Design and implement secure, scalable, and high-performing network solutions bridging on-premises and public cloud environments. Leverage routing and switching expertise (e.g. … BGP, OSPF, MPLS) to ensure network performance and reliability across diverse environments. Analyze operational needs and proactively develop creative network solutions to address security challenges. Security and Firewall Management: Manage firewall configurations for the CyberEnergianetwork based on operational requirements. Develop and implement network security tools, produce threat models, and assess risks around existing configurations. Provide subject matter More ❯

About the role: Shape the Future of Cyber Security at Holland & Barrett At Holland & Barrett, we're not just a leading health and wellness retailer—we're a digital-first business that places customer trust at the heart of everything we do. We're looking for a Senior Security Operations Engineer to join our growing Cyber … Security team and help us protect millions of customers across our digital and in-store platforms. If you're passionate about automation, cloud technology, and fast-paced problem-solving—and want your work to have a real impact—this could be the perfect role for you. Key Responsibilities Lead security incident response and threat detection efforts, prioritising the … protection of customer data and experience Build automated detection and remediation workflows using SOAR, SIEM, and scripting (Python, SQL) Apply deep cloud security knowledge (AWS, Azure) to secure ecommerce, mobile apps, APIs, and in-store systems Collaborate with Fraud and Customer Experience teams to mitigate risks such as account takeover and loyalty fraud Onboard key customer-facing and payment More ❯