26 to 43 of 43 Senior Security Engineer Jobs in London

Security Engineer - SIEM, KQL- sought by investment bank based in London. *Inside IR35 - 3 days a week on-site** Key Responsibilities SIEM Management & Optimization: Design, implement, and maintain Microsoft Sentinel workspaces, connectors, analytics rules, and playbooks Develop advanced KQL queries for threat hunting and reporting Optimize SIEM performance, cost, and data retention policies Troubleshoot log ingestion and parsing … and custom log parsing Threat Detection & Use Case Development: Develop and refine detection rules based on threat intelligence and attack patterns Continuously improve detection efficacy and reduce false positives Security Monitoring & Incident Response: Monitor systems for anomalies and malicious activity Contribute to threat hunting and incident response playbooks Provide expert guidance on securing applications and infrastructure Security Advisory … Innovation: Support PoCs for new security tools Help define and measure control effectiveness Required Skills & Experience Certifications: AZ-500, SC-200, SC-900, CompTIA Security+, CISSP, GCIA, GCIH, GCFA, CCSP Experience with SOAR playbooks, YARA rules, STIX, and YAML Participation in red/purple team exercises. 3+ years in a Security Engineer, SOC Analyst, or similar role 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 ❯

Our client is a highly successful, international Bank based in central London. They are looking to expand their cyber security capacity by appointing a Senior IT Security Engineer within the wider IT Team as the first line of defence for the function.This position will be broad in scope, encompassing firewalls, application security, operating system security, data centre security, physical security of computer rooms as well as liaising with 3rd parties and internal teams, pen testing and risk assessments. The role will also be responsible for compiling and developing cyber security policy and procedures, investigating incidents and ultimately taking the lead in ensure best practice standards in place across the function.In order … Platforms or Applications before moving into a Cyber position, and have strong experience of working in a Bank or Financial Services setting. You will have excellent exposure to Cyber Security frameworks, SIEM and Virtualization tools. Mandarin language skills are preferred but not mandatory.In return, you will get a highly competitive annual salary and exceptional wider benefits package as well More ❯

Our client is a highly successful, international Bank based in central London. They are looking to expand their cyber security capacity by appointing a Senior IT Security Engineer within the wider IT Team as the first line of defence for the function. This position will be broad in scope, encompassing firewalls, application security, operating system … security, data centre security, physical security of computer rooms as well as liaising with 3rd parties and internal teams, pen testing and risk assessments. The role will also be responsible for compiling and developing cyber security policy and procedures, investigating incidents and ultimately taking the lead in ensure best practice standards in place across the function. … Platforms or Applications before moving into a Cyber position, and have strong experience of working in a Bank or Financial Services setting. You will have excellent exposure to Cyber Security frameworks, SIEM and Virtualization tools. Mandarin language skills are preferred but not mandatory. In return, you will get a highly competitive annual salary and exceptional wider benefits package as More ❯

the firm managed approximately US$122 billion on behalf of major pension funds, endowments, foundations, governments and other investors based in the U.S. and abroad.Position Overview:The Senior Security Engineer, reporting to the Director of Information Assurance, is responsible for cloud platform and DevOps security. This senior role will call upon the candidate's DevSecOps experience … to help Acadian Shift Left, injecting security directly into our Software Development Lifecycle and consistently governing our AWS Platform-as-a-Service (PaaS) infrastructure. We are looking for candidates with deep experience and understanding of continuous delivery, container security, SAST/DAST, secrets management, Identity and Access Management (IAM) governance, privilege management, encryption and key management, threat detection … logging, cloud infrastructure security and policy-as-code.What You'll Do: Assess Acadian's cloud IAAS environments for Indicators of Misconfiguration (IOMs) utilizing AWS built-in and third-party assessment tools. Utilizing tools like AWS Config, Security Hub, Inspector, Guardduty, and Crowdstrike Falcon, assess monitor and prioritize remediation of Cloud security vulnerabilities. Develop and maintain tools to 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 ❯

Job Title: Senior Network Engineer Delivery & Migrations Location: England (Home based with client visits across England). Salary: Up to £55,000 basic salary plus great benefits package Sector: Consultancy/Solution Provider The Company Our client is a professional services consultancy who specialise in providing businesses with software defined solutions, network assurance, network automation and managed support. … of interesting projects in both the public and private sectors. Technology Partners Cisco/Meraki VM Ware Palo Alto Fortinet Juniper Aruba/HPE Microsoft AWS Role Snapshot As Senior Network Security Engineer you be an integral member of the delivery and migrations team. The role will entail assisting with migrations, day-to-day delivery tasks and … step up from a BAU role, with the ambition to widen their remit in projects and delivery. Key Responsibilities Assisting with delivery and migration of network, data centre and security solutions. Provide exceptional customer services. Contribute to knowledge centre and keep documentation up to date. Be willing to work in a vendor agnostic environment and stay up to date 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 ❯

Security Research Engineer - Threat Protection The Role As a Security Research Engineer at Mimecast, you will be a pivotal technical expert dedicated to researching, analyzing, and developing detections for both malware and phishing threats. Your work will involve dissecting real-world file and web threats, building and optimizing detection signatures, and driving improvements to our advanced More ❯

Social network you want to login/join with: Senior Software Engineer (Content Delivery & Security), London col-narrow-left Client: bunny.net Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 3384ef32c222 Job Views: 7 Posted: 22.06.2025 Expiry Date: 06.08.2025 col-wide Job Description: We are on a mission to … take pride in their work, and aren't afraid to challenge what's possible. Because everyone deserves a better internet. And we're here to help it hop faster. Senior Software Engineer ( Content Delivery & Security) Our stack handles millions of requests per second across 119+ PoPs on six continents. Your job? Making it faster, safer, and more … efficient. As a Senior Software Engineer on our Content Delivery & Security team, you'll work on core CDN and DNS systems while helping build out our greenfield Shield product, focused on WAF, DDoS mitigation, and bot protection at a global scale. You'll design and optimize low-level systems that accelerate clean traffic and stop attacks in More ❯

an outsized impact, you'll thrive here at Zopa, so join us, and make it count.Want to see us in action? Follow us on The team: Zopa's Product Security team ensures security is baked into our products from the very start of their lifecycles, all the way to the end. We provide the more pre-emptive, design … thinking led, less response-based side of securing the bank. If we do our job right, security becomes inherent in the design of our products, rather than something grafted on after. With you, we'll be a Product Security team of 4, sitting within a larger InfoSec team of 18. Our current projects include ongoing security assessments … and threat models of new, in-house created AI-based systems, improving our security tools - such as SAST and SCA, refining a SLSA strategy, helping to roll out an upcoming bounty program and more! We pride ourselves in being able to collaborate and integrate seamlessly with an engineering functions. You'll be working not only directly with your product More ❯

Senior Cloud Engineer: National Security & Defence Job ID: Amazon Web Services Australia Pty Ltd The Amazon Web Services Professional Services (ProServe) team is seeking a skilled Delivery Consultant to join our team at Amazon Web Services (AWS). In this role, you'll work closely with customers to design, implement, and manage AWS solutions that meet their … in driving customer success through their cloud journey, providing technical expertise and best practices throughout the project lifecycle. Possessing a deep understanding of AWS products and services, as a Senior Cloud Engineer you will be proficient in designing complex, scalable, and secure solutions tailored to meet the specific needs of each customer. You'll work closely with stakeholders … We also deliver focused guidance through our global specialty practices, which cover a variety of solutions, technologies, and industries. Must hold or be able to attain an Australian Government Security Vetting Agency clearance (see ). Key job responsibilities As an experienced technology professional, you will be responsible for: 1. Designing and implementing complex, scalable, and secure AWS solutions tailored 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 ❯

come in. The Opportunity IAG Loyalty is fast becoming a Platform as a Service business. As a result, we are looking for a highly capable individual to join our security team. The candidate will have a strong technical background and experience in implementing best practice security controls within cloud and DevOps. They will be comfortable working in a … cloud-native environment where high rates of technology change are the norm. We are looking for someone who can lead the delivery of a number of our security engineering objectives, be responsible for the effective operation of the tools that help keep our organisation secure and manage a small team of security engineer. This role is based out … to work from one of our other office or partner locations, based on your role and 'to do' list. What you'll be doing You will lead the Platform Security practice within our security team, driving key initiatives to enhance the security of our cloud platform and software development lifecycle. This involves coordinating and contributing to continuous More ❯

of financial institutions, Ripple is improving the global financial system and increasing economic inclusion for more people, in more places around the world. Ripple is looking for passionate Information Security professionals to build a world class Information Security program. As part of the Information Security team, you will help us achieve this mission by actively working to … employees, and our customers. To accomplish this, we are building data pipelines and detections, automating incident response, and developing leading-edge solutions to collect and analyze data in both security incidents and investigations. As a Detection and Response Engineer, you will build and grow your career in all of these areas. WHAT YOU'LL DO: Help lead the … Analyze applications and systems to identify relevant data sources for threat detections Tune and test detection logic to reduce false positives and noise Work with technology vendors to optimize security services for peak effectiveness Research and collaborate internally and externally on open-source solutions Automate response processes with SOAR and related technologies Act in a purple team capacity to More ❯

want to bring 1B+ people onchain in the most secure way possible. We want to provide them secure platforms and tools to build and interact with exciting applications. Protocol Security ensures the security of all onchain development at Coinbase. We partner closely with product teams to make sure that our users can safely and confidently engage with the … onchain world. What you'll be doing (ie. job duties): Develop onchain security strategies and perform security assessments and threat modeling of various blockchain protocols. Lead from the front, be proactive and thorough, and identify top onchain security risks and develop strategies to deal with them. Provide expert technical guidance to the team in building new frameworks … analysis tools, and security products. Lead the way in establishing best practices and engage with product and eng teams to get them adopted. Coach and mentor Protocol Security team members to build new skills and be crypto-forward. Guide Protocol Security to the cutting-edge of security technologies for blockchain protocols and help set standards for More ❯

Job Description: Protocol Security Lead at Coinbase Ready to be pushed beyond what you think you're capable of? At Coinbase, our mission is to increase economic freedom in the world. We are building the emerging onchain platform and shaping the future global financial system. We seek a candidate passionate about our mission, believing in crypto and blockchain technology … caliber colleagues, Coinbase is the place for you. Onchain is the new online. We aim to bring 1B+ users onchain securely, providing platforms and tools for innovative applications. Protocol Security at Coinbase ensures the safety of all onchain development. We collaborate with product teams to enable secure user engagement with the onchain world. Responsibilities: Develop onchain security strategies … perform security assessments, and threat modeling of blockchain protocols. Lead proactively, identify top security risks, and develop mitigation strategies. Provide technical guidance in building frameworks, analysis tools, and security products. Establish best practices and promote adoption across teams. Mentor team members in blockchain security skills and foster a crypto-forward mindset. Help set industry standards for More ❯