17 of 17 Senior Security Engineer Jobs in London

Senior Security Engineer 6 month FTC London to £100k Are you a Senior Security Engineer from an Infrastructure, Systems or Networking background? You could be progressing your career at a specialist commodities trading firm in a six month fixed term contract that is likely to extend. As a Senior Security Engineer you will implement and maintain robust security systems and protocols across the company's IT infrastructure, conducting risk assessments and vulnerability scans, mitigating vulnerabilities identified in penetration testing and implementing preventative measures to protect against cyber threats with a focus on WAF, IDS, IPS, Windows Security and Palo Alto firewalls. You also manage the 3rd party SOC … office, there is a smart, professional dress code. Please note this role is on shift basis of either WFH days) and office days). About You You are a Senior Security Engineer from an Infrastructure, Systems or Networking background You have strong experience with CrowdStrike, Palo Alto firewalls, VPN firewalls, Windows security e.g. EntraID, DNS, Active More ❯

Job Role: Senior Security Engineer - CIAM Location: Hybrid - City of London Salary: £100,000 - £120,000 + Bonus Are you an experienced Security Engineer with a passion for safeguarding systems and driving innovation in identity and access management? Do you thrive in complex environments where you can solve critical security challenges and influence long … re driven by excellence, collaboration, and the opportunity to make an impact on a global financial institution, this could be the perfect role for you. Join us as a Senior Security Engineer, where you'll help shape a market-leading digital platform and deliver secure, cutting-edge customer experiences. Ideal Candidate: Strong hands-on expertise with Hardware … Security Modules (HSM), AWS Secrets Manager, and certificate lifecycle management (rotation, revocation, automation) Experienced with GitLab CI/CD pipelines, AWS CLI, and automation tooling (Chef or similar) Proven background in Cloud Security, with deep knowledge of: - AWS security controls, policies, and automation - Role-based and attribute-based access controls - Cryptographic protocols and secure key lifecycle management More ❯

Senior Fire & Security Engineer Location: London (Field-Based) Salary: Up to £47,000 + Overtime & Benefits A leading national fire & security provider is seeking an experienced Senior Fire & Security Service Engineer to join their service team in London. This role focuses on complex maintenance, diagnostics and customer support across major commercial contracts, with … diagnostics Small remedial works and panel programming/resetting Supporting and mentoring junior or trainee engineers Completing compliance reports and certification to NSI/BAFE standards Acting as a senior point of contact on key London sites Experience & Requirements Proven experience as a Fire & Security Service Engineer Strong knowledge of fire alarm panels (e.g. Advanced, Kentec, Gent … standby/call-out rota 25 days holiday + bank holidays Pension scheme Uniform, PPE, tools & test equipment provided Ongoing manufacturer and advanced technical training Progression routes to Lead Engineer, Commissioning or Supervisor Employee recognition and referral schemes Why Join? This is a senior-level opportunity with a company investing heavily in engineering teams, training and long-term More ❯

going places! This is where you come in. The Opportunity As IAG Loyalty evolves into a Platform as a Service business, we're looking for a talented and passionate Senior Application Security Engineer to join our security engineering team. You'll have a background in software engineering and a deep interest in application and API security. … You thrive on collaboration, enjoy helping others grow, and see security as an enabler - not a blocker. You'll be an AppSec advocate who supports our engineers in identifying and addressing security issues across the software development lifecycle. You'll be part of a small, dynamic team within the Product department that drives IAG Loyalty's digital transformation … also be required to work from one of our other office or partner locations, based on your role and 'to do' list. What you'll be doing As a Senior Application Security Engineer, you'll lead the application security practice within the IAG Loyalty security team, taking responsibility for key security KPIs in this More ❯

Job Title: Senior Application Security Engineer Salary: £70,000 Location: Reading/remote About the Organisation Join a fast-growing UK technology and consulting firm that's investing heavily in cutting-edge cyber security. With a strong focus on innovation, collaboration, and professional development, this company empowers its people to shape the future of secure digital transformation … ll be part of a business that values expertise, agility, and doing the right thing - where everyone has the opportunity to make a genuine impact. About the Role The Senior Application Security Engineer will play a key role in protecting the organisation's infrastructure, cloud platforms, and applications. Working within a highly technical and collaborative cyber team … supported by a 24/7 external SOC - you'll research, test, and implement next-generation security solutions to safeguard data and systems. This role offers the chance to lead on application and cloud security initiatives, influence secure design standards, and mentor colleagues in best practices. Key Responsibilities Lead application and cloud security initiatives, ensuring systems and More ❯

Senior Backend Engineer (Platform & Security) We are seeking a deeply technical and security-minded Senior Backend Engineer to join a newly-founded, high-impact AI joint venture. Backed by five of the world's leading telecommunications giants, our mission is to restore trust in global voice communication. We are building a new category of … network-native B2C security, moving from reactive, in-call analysis to proactive, pre-call verification that stops fraud before it starts. This is not a typical backend role. You will be the Stability & Monetization Owner, the foundational engineer responsible for two of the most critical pillars of our platform : our monetization engine and our Zero Trust security … powers our entire freemium business model. This position offers a unique opportunity to build a globally-scalable, highly secure, and compliant platform from the ground up. If you believe security and privacy are non-negotiable product features and you are excited by the challenge of building the commercial and trust-based foundation of a new product category, this role More ❯

Please note this is for London, UK. You only need toapply to one location if there are multiple listed for the job. Apply Now 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, and More ❯

Senior Backend Engineer (Platform & Security) We are seeking a deeply technical and security-minded Senior Backend Engineer to join a newly-founded, high-impact AI joint venture. Backed by five of the world's leading telecommunications giants, our mission is to restore trust in global voice communication. We are building a new category of … network-native B2C security, moving from reactive, in-call analysis to proactive, pre-call verification that stops fraud before it starts. This is not a typical Back End role. You will be the Stability & Monetization Owner, the foundational engineer responsible for two of the most critical pillars of our platform: our monetization engine and our Zero Trust security … powers our entire freemium business model. This position offers a unique opportunity to build a globally-scalable, highly secure, and compliant platform from the ground up. If you believe security and privacy are non-negotiable product features and you are excited by the challenge of building the commercial and trust-based foundation of a new product category, this role More ❯

Job Title: Senior Application Security EngineerSalary: £70,000Location: Reading/remote About the Organisation Join a fast-growing UK technology and consulting firm that's investing heavily in cutting-edge cyber security. With a strong focus on innovation, collaboration, and professional development, this company empowers its people to shape the future of secure digital transformation across a wide … ll be part of a business that values expertise, agility, and doing the right thing - where everyone has the opportunity to make a genuine impact. About the Role The Senior Application Security Engineer will play a key role in protecting the organisation's infrastructure, cloud platforms, and applications. Working within a highly technical and collaborative cyber team … supported by a 24/7 external SOC - you'll research, test, and implement next-generation security solutions to safeguard data and systems. This role offers the chance to lead on application and cloud security initiatives, influence secure design standards, and mentor colleagues in best practices. Key Responsibilities Lead application and cloud security initiatives, ensuring systems and More ❯

Senior Backend Engineer (Platform & Security) We are seeking a deeply technical and security-minded Senior Backend Engineer to join a newly-founded, high-impact AI joint venture. Backed by five of the world's leading telecommunications giants, our mission is to restore trust in global voice communication. We are building a new category of … network-native B2C security, moving from reactive, in-call a click apply for full job details More ❯

the heart of our digital transformation. As we continue to grow and innovate, securing our applications and protecting customer data is a top priority. We are looking for a Senior Application Security Engineer to lead our efforts in strengthening application security, mitigating risks, and ensuring best-in-class security practices. If you are passionate about … cybersecurity and eager to make a real impact, we want you on our team! Key Responsibilities: Security Strategy: Help define and execute the Holland & Barrett application security strategy. Collaborate with both tech and non-tech teams to integrate security principles into the early stages of product design and development. Secure SLDC: Establish a secure Software Development Lifecycle … software integrity, authenticity, and third-party library management. Risk Assessments: Conduct risk assessments, threat modeling, and architecture reviews alongside development teams, producing artifacts to drive the implementation of effective security controls. Standards Development: Own the creation and maintenance of tailored security standards and guidelines, developing reusable resources for various development teams. Team Support: Provide guidance and support to More ❯

Senior Cyber Security & Infrastructure Engineer - Azure - FinTech A FinTech is seeking a skilled Senior Cyber & Infrastructure Engineer to drive the next phase of its Microsoft cloud environment and cyber security strategy. This role offers an opportunity to join a forward-thinking IT function and be a key player in building secure, scalable systems and … ensuring the organisation stays ahead of evolving cyber threats. The successful candidate will take ownership of security architecture in a Microsoft cloud infrastructure environment to deliver resilient, and future proof solutions. Key Responsibilities: Implement and enhance secure, Microsoft Azure and Microsoft 365 platforms. Strengthen and manage the organisations security posture using Microsoft Defender for Endpoint, Sentinel, Intune, and … other Microsoft security solutions. Integrate and optimise EDR, XDR, and CrowdStrike (or similar platforms) to improve threat detection and response capabilities. Maintain effective access controls, including RBAC and Conditional Access Collaborate with Risk & Compliance teams to align infrastructure with ISO 27001, NIST, and CIS frameworks. Act as the technical SME for security infrastructure and collaborate with other Cloud More ❯

Senior Cyber Security & Infrastructure Engineer - Azure - FinTech A FinTech is seeking a skilled Senior Cyber & Infrastructure Engineer to drive the next phase of its Microsoft cloud environment and cyber security strategy. This role offers an opportunity to join a forward-thinking IT function and be a key player in building secure, scalable systems and … ensuring the organisation stays ahead of evolving cyber threats. The successful candidate will take ownership of security architecture in a Microsoft cloud infrastructure environment to deliver resilient, and future proof solutions. Key Responsibilities: Implement and enhance secure, Microsoft Azure and Microsoft 365 platforms. Strengthen and manage the organisation’s security posture using Microsoft Defender for Endpoint, Sentinel, Intune … and other Microsoft security solutions. Integrate and optimise EDR, XDR, and CrowdStrike (or similar platforms) to improve threat detection and response capabilities. Maintain effective access controls, including RBAC and Conditional Access Collaborate with Risk & Compliance teams to align infrastructure with ISO 27001, NIST, and CIS frameworks. Act as the technical SME for security infrastructure and collaborate with other More ❯

About the role: Join Our Team at Holland & Barrett! Are you passionate about cloud security and looking to make a significant impact? Holland & Barrett is seeking a Cloud Security Specialist to help us define and implement our cloud security strategy. If you're an experienced professional eager to work with cutting-edge technology and collaborate with diverse … teams, we want to hear from you! Key Responsibilities: Security Strategy: Help define and execute the Holland & Barrett cloud security strategy, partnering with platform and Site Reliability Engineering (SRE) teams to build robust infrastructure that supports our business. Perimeter Security: Establish platform perimeter security by implementing controls at ingress and egress points, including creating and maintaining … Access Control: Establish an access control baseline focusing on the principle of least privilege and segregation of duties. Monitor and enforce these controls once roles and permissions are set. Security Controls: Design, implement, and maintain security controls to prevent, detect, and remediate insecure configurations, including defining and disseminating secure AWS/infrastructure baselines. Standards Development: Own the development More ❯

you'll have Reporting to Sasha, our Platform Engineering Manager, you'll be working in a team of three. The Platform Engineering team is responsible for Platform Engineering, DevOps, Security, Compliance, Infrastructure Management and providing support to Sales team and customers in these areas. The role will build upon the existing security baseline established but strategically advance the … company's security posture, and developing long-term security strategies. What you'll be doing from day one 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 and deploy effective remediation measures. Monitor systems, networks … and logs then Investigate security breaches, incidents, and other cybersecurity events. Oversight of compliance for regulatory compliance requirements, such as SOC2, HIPAA, ISO 27001, GDPR etc, and ensure our systems adhere to these standards Conduct security awareness training sessions, enabling the business. Who you are Cloud security enthusiast - You're comfortable navigating AWS and GCP environments (Azure More ❯

global scale. Join us to start Caring. Connecting. Growing together. Increase your chances of an interview by reading the following overview of this role before making an application. A Security Logging Engineer partners with ESRO Cyber Defense Teams to build, customize and distribute Security Log Solutions for on-prem and in the cloud systems. Work alongside the … top Google SecOps engineers in the company to ensure our pipelines feeding SecOps are as efficient, reliable and cost effective as possible. ESRO Security Logging Team and ESRO Cyber-Defense teams both utilize the same workload software which produces a seamless workflow, a quicker time-to-deliver, and partnerships that offer focused value. We work with platform owners across … the enterprise to provide support and education around the security events their platforms produce. We deliver world-class event pipelines tailored for each owner's platform. Careers with Optum offer flexible work arrangements and individuals who live and work in the Republic of Ireland will have the opportunity to split their monthly work hours between our London office and More ❯

at the heart of some of the biggest and most ambitious programmes undertaken to keep our country safe? We are proud of the impact we have with Defence and Security clients, the strength of our relationships, and the variety of our skills and expertise that we bring to help them achieve their mission. We're growing our team. If … in the development and delivery of IAM training and awareness programmes. Collaborating with cross-functional teams to ensure effective IAM implementation and operation. Stay up to date with emerging security threats, technologies, and industry best practices, and provide recommendations for improvement. Communicate solutions to both a technical and non-technical audience. Qualifications and professional experience All applicants must have … UK security clearance to Security Check (SC) or Developed Vetting (DV) level. We recognise our strength is in the diversity of our teams experience, background and culture. We are looking for talented individuals who are passionate about the work they do, prepared to think differently, are pragmatic and able to work with others to influence outcomes. We value More ❯