101 to 125 of 263 Security Engineer Jobs in London

Meta's Network Security team is seeking an experienced engineer to help secure our global Data Centers, network Backbone, Optical Infrastructure, and Edge PoPs. We do this by working extensively across the Meta family of products, including Instagram, WhatsApp, and AI where we identify and solve security problems across network infrastructure. You will be responsible for building, implementing, and operationally supporting the organization to develop security controls and services that will protect network infrastructure which helps serve traffic for over 3 billion users worldwide. We are looking for engineers with experience in managing complex issues … that require problem-solving to drive security and innovation, who will research and develop new solutions to help protect our infrastructure and our users through a defense in-depth approach. The team thrives in finding security issues and eradicating them and makes life hard for bad actors. With More ❯

short of challenges. About the role At V7, we empower our customers with cutting-edge AI solutions to transform their operations. As a Senior Security Engineer , you will play a pivotal role in safeguarding our systems, networks, and data while ensuring compliance with industry-leading security certifications … and securing their critical information assets. This role sits within the Platform Engineering Team and requires a strong technical background, hands-on experience with security tools, and a collaborative mindset to work effectively across teams. The role will involve platform engineering activities, contributing to the design, implementation, and optimization … tackling complex challenges in a fast-paced SaaS environment, this position is for you. What you will do: Design and implement robust, forward-thinking security strategies, policies, and procedures to safeguard our systems, networks, and data. Lead regular security assessments, vulnerability scans, and penetration tests to identify risks More ❯

Senior Product Security Engineer Location: London Salary: £200,000+ A leading global quantitative investment firm is seeking a Senior Product Security Engineer to strengthen the security of its trading systems, cloud infrastructure, and business applications. This is a hands-on, high-impact role working across … a modern tech stack in a fast-paced environment. Key Responsibilities Implement and maintain security controls across low-latency systems and multi-cloud platforms (AWS, Azure, Alibaba Cloud) Collaborate with engineering teams to integrate secure coding practices into the SDLC Conduct threat modeling, vulnerability assessments, and code reviews Automate … security processes through CI/CD integration using SAST, DAST, and related tools Assess third-party vendors and enforce security standards Mentor teams on security architecture and best practices What We’re Looking For Experience in product or application security roles Strong development background in Python More ❯

Senior Product Security Engineer Location: London Salary: £200,000+ A leading global quantitative investment firm is seeking a Senior Product Security Engineer to strengthen the security of its trading systems, cloud infrastructure, and business applications. This is a hands-on, high-impact role working across … a modern tech stack in a fast-paced environment. Key Responsibilities Implement and maintain security controls across low-latency systems and multi-cloud platforms (AWS, Azure, Alibaba Cloud) Collaborate with engineering teams to integrate secure coding practices into the SDLC Conduct threat modeling, vulnerability assessments, and code reviews Automate … security processes through CI/CD integration using SAST, DAST, and related tools Assess third-party vendors and enforce security standards Mentor teams on security architecture and best practices What We’re Looking For Experience in product or application security roles Strong development background in Python More ❯

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 preserves 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 working with UK customers to operate and continuously improve industry-leading security programs and processes. This team manages the More ❯

Security Engineer – IAM | DORA | Pen Testing | Payments – Banking London/Glasgow | £750/day (Inside IR35) | Financial Services We're seeking a seasoned Security Engineer with a proven track record in banking environments to join a high-impact team driving resilience and security across mission … assessments Own IAM strategy and operations , ensuring airtight access controls Drive compliance with DORA (Digital Operational Resilience Act) standards Evaluate and mitigate third-party security risks Safeguard complex payments and settlement infrastructure Operate in fast-paced, regulated environments with a laser focus on resilience What You’ll Bring: Hands … pen testing, third-party risk , and regulatory frameworks (DORA) In-depth knowledge of financial systems, especially payments & settlement platforms Strong communicator, highly analytical, and security-obsessed More ❯

Security Engineer – IAM | DORA | Pen Testing | Payments – Banking London/Glasgow | £750/day (Inside IR35) | Financial Services We're seeking a seasoned Security Engineer with a proven track record in banking environments to join a high-impact team driving resilience and security across mission … assessments Own IAM strategy and operations , ensuring airtight access controls Drive compliance with DORA (Digital Operational Resilience Act) standards Evaluate and mitigate third-party security risks Safeguard complex payments and settlement infrastructure Operate in fast-paced, regulated environments with a laser focus on resilience What You’ll Bring: Hands … pen testing, third-party risk , and regulatory frameworks (DORA) In-depth knowledge of financial systems, especially payments & settlement platforms Strong communicator, highly analytical, and security-obsessed More ❯

Role: Lead Principle Security QA Engineer Rate: Inside IR35 Location: likely 2 days a week onsite in London or Croydon. Duration:6 months + SC cleared or eligible. The Role The Home Office are currently developing an internal Security Testing capability that will operate out of the … Quality Assurance and Testing function. As a Principle Cyber Security Professional, your role will be embedded in the Home Office Cyber Security (HOCS) function working day to day with senior security stakeholders to lead the continued development of the security testing service and represent security testing for the Home Office. Communication and professionalism are critical for this role as you will be working collaboratively with senior Home Office Security colleagues across the organisation on a day-to-day basis. Working within Security Testing, you will play a leading role in delivering security More ❯

Senior Cyber Security Engineer London – Hybrid working 3 days per week in the office £80,000 - £125,000 + benefits Fantastic new permanent opportunity for an experienced Cyber Security Engineer with this leading player within the financial services sector. You will be joining a leading business … a market-leading digital offering with customer experience at its heart. You will work with the wider engineering team and be instrumental in ensuring security is embedded into the design and development process. This is an exciting and key role, partnering with business aligned engineering and product teams, to … ensure a collaborative team culture is at the heart of what they do. Main responsibilities: Provision of subject matter expertise on security systems and engineering patterns. Development and implementation of protocols, algorithms, and software applications to protect sensitive data and systems. Management and protection of secrets, ensuring that they More ❯

Senior Cyber Security Engineer London – Hybrid working 3 days per week in the office £80,000 - £125,000 + benefits Fantastic new permanent opportunity for an experienced Cyber Security Engineer with this leading player within the financial services sector. You will be joining a leading business … a market-leading digital offering with customer experience at its heart. You will work with the wider engineering team and be instrumental in ensuring security is embedded into the design and development process. This is an exciting and key role, partnering with business aligned engineering and product teams, to … ensure a collaborative team culture is at the heart of what they do. Main responsibilities: Provision of subject matter expertise on security systems and engineering patterns. Development and implementation of protocols, algorithms, and software applications to protect sensitive data and systems. Management and protection of secrets, ensuring that they More ❯

operating at massive levels of scale. Businesses, from start-ups to enterprises, run their operations and applications on AWS' multi-tenant infrastructure About Amazon Security Diverse Experiences Amazon Security values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the … career is just starting, hasn't followed a traditional path, or includes alternative experiences, don't let it stop you from applying. Why Amazon Security? At Amazon, security is central to maintaining customer trust and delivering delightful customer experiences. Our organization is responsible for creating and maintaining a … high bar for security across all of Amazon's products and services. We offer talented security professionals the chance to accelerate their careers with opportunities to build experience in a wide variety of areas including cloud, devices, retail, entertainment, healthcare, operations, and physical stores. Inclusive Team Culture In More ❯

Fire And Security Engineer A Plus Security are a NSI and BAFE accredited fire and security integrater based in Southend-On-Sea mainly working in and around London. We work on a variety of sites including education, high end hospitality, high end residential, healthcare, retail and … construction sites. We are currently looking for an experienced engineer to join our team of 12 engineers/apprentices in the London region and covering works nationwide on occasion. The right Fire And Security Engineer candidate would have experience and qualifications on: Fire alarm - 3+ years experience … is preferred in Commissioning, service, small works. Advanced, CTEC, Kentec addressable systems. Gent knowledge an advantage but not essential. Security Systems - 3+ years experience is preferred in IP CCTV, Access Control, Intruder Alarm and Intercoms. It would be advantageous to be trained in Avigilon, FLIR, Cathexis, Salto, Paxton, Gallagher More ❯

Senior IT Security Engineer - Remote (Global) - Competitive Salary + Token Package Plexus has partnered with a well-funded, innovative startup (backed by nearly $100M ) that's redefining security for Proof-of-Stake blockchains and pioneering Bitcoin staking solutions. They're seeking a talented Senior IT Security Engineer to play a key role in building the next generation of blockchain security. Responsibilities: Administer cloud infrastructure (AWS, GCP, Azure), Google Workspace, SSO, and SaaS apps. Evaluate, integrate, and manage security tools (e.g., SIEM, endpoint protection). Oversee IT/security vendors and ensure compliance. … Support security incident response and investigations. Requirements: IT admin experience, ideally in a startup with a global remote team. Hands-on with MDM, Google Workspace, SSO, and cloud SaaS, focused on security and global access. Good understanding of blockchain security risks. Proficient in scripting (Python, Bash). More ❯

Senior IT Security Engineer - Remote (Global) - Competitive Salary + Token Package Plexus has partnered with a well-funded, innovative startup (backed by nearly $100M ) that's redefining security for Proof-of-Stake blockchains and pioneering Bitcoin staking solutions. They're seeking a talented Senior IT Security Engineer to play a key role in building the next generation of blockchain security. Responsibilities: Administer cloud infrastructure (AWS, GCP, Azure), Google Workspace, SSO, and SaaS apps. Evaluate, integrate, and manage security tools (e.g., SIEM, endpoint protection). Oversee IT/security vendors and ensure compliance. … Support security incident response and investigations. Requirements: IT admin experience, ideally in a startup with a global remote team. Hands-on with MDM, Google Workspace, SSO, and cloud SaaS, focused on security and global access. Good understanding of blockchain security risks. Proficient in scripting (Python, Bash). More ❯

Meta's Product Security team is seeking a passionate hacker who derives purpose in life by revealing potential weaknesses and then crafting creative solutions to eliminate those weaknesses. Your skills will be the foundation of security initiatives that protect the security and privacy of over two billion … people. You will be relied upon to provide engineering and product teams with the web, mobile, or native-code security expertise necessary to make confident product decisions. Come help us make life hard for the bad guys. Product Security Engineer Responsibilities Security Reviews: perform manual design … 2+ years of experience finding vulnerabilities in interpreted languages (php, ruby, python). Knowledge of best practice secure code development Experience with exploiting common security vulnerabilities Preferred Qualifications Experience writing software that enables security processes Contributions to the security community (public research, blogging, presentations, bug bounty, etc. More ❯

Lead Software Security Engineer | Permanent | UK (Hybrid - once a month) | £86k We're working with a highly respected, forward-thinking professional services firm on a mission to embed security into every part of their digital transformation journey. This is a key hire within their growing tech function … they're looking for a Lead Software Security Engineer to shape and drive secure-by-design principles across new and evolving digital products. You'll be joining a business that genuinely values its people, with a collaborative culture and real investment in development. They're agile, ambitious, and … looking for someone who wants to play a hands-on role in moving security left - bringing DevSecOps to life and guiding engineering teams with confidence and clarity. What you'll be doing: Leading the cultural shift towards DevSecOps across multiple product teams Embedding security requirements and tooling into More ❯

Cyber Security Engineer ** Eligibility and willingness to gain UK Security Clearance ** We are partnered with a Software Consultancy who are making waves within National Security. Joining this cutting-edge software firm will allow you to work at the forefront of technological innovation, on projects that safeguard our … of experts who are committed to your development and career progression you will benefit from working with the latest technologies and methodologies in cyber security, driving forward-thinking solutions and companywide innovation. This Cyber Security specialist will be pivotal in developing, implementing, and advising on a variety of … cyber security solutions, managing the complexities of IT security, secure development, risk assessment, security architecture, and secure operations. This role demands a proactive approach to identifying and mitigating security risks, working closely with both technical and non-technical stakeholders. Key Responsibilities: - Design and develop secure solutions More ❯

Cyber Security Engineer ** Eligibility and willingness to gain UK Security Clearance ** We are partnered with a Software Consultancy who are making waves within National Security. Joining this cutting-edge software firm will allow you to work at the forefront of technological innovation, on projects that safeguard our … of experts who are committed to your development and career progression you will benefit from working with the latest technologies and methodologies in cyber security, driving forward-thinking solutions and companywide innovation. This Cyber Security specialist will be pivotal in developing, implementing, and advising on a variety of … cyber security solutions, managing the complexities of IT security, secure development, risk assessment, security architecture, and secure operations. This role demands a proactive approach to identifying and mitigating security risks, working closely with both technical and non-technical stakeholders. Key Responsibilities: - Design and develop secure solutions More ❯

Azure Lead Software Security Engineer with Development Background, DevSecOps, Mainly Remote Software Security Engineer Lead is required to work for a fast-growing and exciting company based in Central London. However, this will mainly be remote. Please read in full before applying We need someone with … old fashioned Unix/Linux Systems Administrator. We want someone with a development/some form of coding background who has blossomed into Software Security/Cloud Security engineer. We NEED for you to have strong Azure skills, NOT AWSalthough a blend would be acceptable. Rather than someone … hands on role and is perfect for some who has come from a consultancy background with appropriate hands on skills. A passion a modern security approach is paramount, where you help teams build security into their daily work life and are always looking automate, streamline and shift left More ❯

Excellent opportunity for AWS Native Security Engineer/Architect to be part of our Cloud Infrastructure & Security services practice. Cognizant Infrastructure Services – Provides IT infrastructure & Cloud services for clients across industry verticals, including both Consulting/Professional and Managed Services, across Enterprise Computing, Cloud services, Security Services, DevOps, Data Centres, End User Computing, Service Desk, Network Services and Environment Management Services. Key Responsibilities : Design, implement, and maintain scalable security solutions using AWS services, including AWS WAF, AWS Shield Advanced, AWS Secrets Manager, Amazon Inspector, Amazon Macie, Amazon GuardDuty, Amazon Detective, AWS CloudTrail, and AWS … Security Hub. Develop and maintain Infrastructure as Code (IaC) using AWS CloudFormation or Terraform for automated deployment and configuration management. Configure and optimize security measures, including IAM policies, network security groups, and encryption protocols. Monitor security alerts and incidents using AWS security tools and respond More ❯

Excellent opportunity for AWS Native Security Engineer/Architect to be part of our Cloud Infrastructure & Security services practice. Cognizant Infrastructure Services – Provides IT infrastructure & Cloud services for clients across industry verticals, including both Consulting/Professional and Managed Services, across Enterprise Computing, Cloud services, Security Services, DevOps, Data Centres, End User Computing, Service Desk, Network Services and Environment Management Services. Key Responsibilities : Design, implement, and maintain scalable security solutions using AWS services, including AWS WAF, AWS Shield Advanced, AWS Secrets Manager, Amazon Inspector, Amazon Macie, Amazon GuardDuty, Amazon Detective, AWS CloudTrail, and AWS … Security Hub. Develop and maintain Infrastructure as Code (IaC) using AWS CloudFormation or Terraform for automated deployment and configuration management. Configure and optimize security measures, including IAM policies, network security groups, and encryption protocols. Monitor security alerts and incidents using AWS security tools and respond More ❯

innovation continuously drives our ambition to deliver high quality returns for our investors. Your future role within QRT QRT is hiring a Senior Product Security Engineer to protect diverse tech systems across cloud, business apps, and core infrastructure. In this role, you'll drive automated security processes … influence architecture, and lead strategic security projects. Working closely with IT, cloud, and engineering teams, you'll implement security solutions for low-latency systems and multi-cloud platforms, including AWS, Azure, and Alibaba Cloud. You'll also secure hybrid infrastructures across Python, C++, and Kotlin/Java environments … ensuring robust protection that supports QRT's high-speed, data-driven operations. Support the implementation of security controls and processes for product security, focusing on a broad range of systems, including core trading infrastructure, cloud services, and business applications across both Windows and Linux environments. Collaborate with engineering More ❯

Senior Network Security Engineer Leading global manufacturing company is looking for a Senior Network Security Engineer to join their growing Network Security Engineering team. The successful candidate will design and implement network security solutions connecting on-premises and public cloud environments, with a strong … very technical role and will play a key part in securing the network infrastructure. London 5 DAYS A WEEK. Responsibilities: Design and deploy network security solutions across cloud and on-premises environments. routing and switching protocols network performance. Analyze operational needs and develop innovative solutions to strengthen network security. … Required: Hands-on experience within enterprise network security solutions. Advanced knowledge of routing and switching protocols. Deep understanding of firewalls. More ❯

Senior Network Security Engineer Leading global manufacturing company is looking for a Senior Network Security Engineer to join their growing Network Security Engineering team. The successful candidate will design and implement network security solutions connecting on-premises and public cloud environments, with a strong … very technical role and will play a key part in securing the network infrastructure. London 5 DAYS A WEEK. Responsibilities: Design and deploy network security solutions across cloud and on-premises environments. routing and switching protocols network performance. Analyze operational needs and develop innovative solutions to strengthen network security. … Required: Hands-on experience within enterprise network security solutions. Advanced knowledge of routing and switching protocols. Deep understanding of firewalls. More ❯

a real impact on shaping a better, more sustainable future. We are very excited to be building a small and efficient Cyber and Information Security team at Octopus Energy Group. We're hiring for both Mid-Level and Senior Security Engineers . We are looking for ambitious, knowledgeable … and experienced Security Engineers to join our team, to grow with the rest of the company, and ensure we continue to do so in a secure and safe way. You will be a key partner in defining what Security is at Octopus Energy Group. We will be shaping … and undertaking transformational organisational change. You'll play a crucial role in helping to secure our software development processes, securing our platform services, integrating security practices, and shaping a culture of security. This is a creative, and collaborative position that is a full-time member of a Cloud-First More ❯