THE ROLE As a Senior Cloud Security Engineer at Form3, you will be instrumental in designing, implementing, and sustaining robust security controls that safeguard our high-availability, multi-cloud payment platforms built on cutting-edge technologies. Your profound knowledge of contemporary threats, exploitation techniques, and risk assessments will empower you to advise engineering teams on the most effective security enhancements and prioritize essential defensive strategies.

THE ROLE As a Senior Cloud Security Engineer, you will be responsible for developing and implementing robust security controls for high-availability multi-cloud payment systems utilizing cutting-edge technologies. Your expertise in identifying current threats, understanding exploitation paths, and evaluating risk trade-offs will empower you to advise engineering teams on impactful security features, while effectively prioritizing the management of defensive controls. WE’RE LOOKING FOR Essential You are proficient in the Linux command line. Your research and experience substantiate your strong opinions on security practices and trade-offs, which you are eager to discuss and share. You possess recognized expertise in Kubernetes security and have successfully built complex, heavily customized multi-cluster environments.

THE ROLE As a Senior Cloud Security Engineer, you will be tasked with designing, implementing, and maintaining robust security controls that safeguard our high-availability, multi-cloud payment systems developed with cutting-edge technologies. Your extensive knowledge of contemporary threats, exploitation tactics, and risk management will empower you to provide invaluable guidance to engineering teams on effective security features and ensure that critical defensive measures are prioritized.

THE ROLE As a Senior Cloud Security Engineer specializing in Kubernetes, you will be responsible for designing, implementing, and managing robust security controls for our highly-available multi-cloud payment systems that leverage cutting-edge technology. Your expertise in understanding current security threats, exploitation pathways, and risk assessments will be pivotal in advising engineering teams on effective security features and prioritizing the management of defensive security controls. WE’RE LOOKING FOR Essential Qualifications: You are highly proficient with the Linux command line. Your research and experience inform your strong opinions on security practices and trade-offs, which you enjoy debating and sharing with others. You possess recognized expertise in Kubernetes security and have experience developing complex, heavily customized multi-cluster environments.

Ebury empowers ambitious businesses to unlock global growth, and we extend the same philosophy to our team members. We promote innovation, collaboration, and problem-solving, creating an inclusive environment where everyone feels valued, supported, and empowered to thrive.If you are a collaborative individual eager to transform how businesses operate on a global scale, we invite you to connect with us. Discover how Ebury can fast-track your career and help you shape the future.Senior Security Engineer - Cloud InfrastructureHybrid (4 days in office) in LondonEbury is making significant investments in its cloud infrastructure security to ensure the integrity and safety of our global financial services. As a Senior Security Engineer specializing in Cloud Infrastructure, you will be responsible for enhancing and managing the security posture of our cloud environments across AWS and GCP, focusing on network security, perimeter defense, and attack surface management.This hands-on position requires extensive expertise in cloud-native security controls, network architecture, and proactive defensive security operations. You will design, implement, and maintain security infrastructure that identifies and mitigates threats before they affect our operations. Collaborating closely with platform, infrastructure, and security operations teams, you will embed security best practices into our cloud foundations.Key ResponsibilitiesManage cloud security posture and attack surface: Ensure comprehensive visibility and control across AWS and GCP environments. Implement cloud-native security monitoring, detection, and alerting mechanisms to proactively identify and mitigate threats, establishing and enforcing security baselines through policy-as-code.Design and oversee web application firewall infrastructure: Maintain WAF configurations across AWS and GCP, creating and fine-tuning detection rules in line with application threat models and emerging attack patterns. Develop operational processes for rule management and incident response integration, collaborating with application teams to implement protections without disrupting availability.Architect network segmentation and isolation: Design and implement strategies ensuring proper separation between development, staging, and production environments. Define consistent patterns across multi-cloud infrastructure, apply zero-trust principles to workload communication, and document reference architectures for engineering teams.

Who are we?At Ki Insurance, we are at the forefront of innovation in the insurance industry. We're not just insuring everyday things; we're insuring space shuttles, global tours, wind farms, and even the legs of footballers!Our mission is clear: to digitally disrupt and revolutionize a market that has been around for 335 years. In collaboration with Google and UCL, we've developed a platform that leverages algorithms, machine learning, and large language models, allowing insurance brokers to receive quotes in seconds instead of days.Ki proudly stands as the largest global algorithmic insurance carrier and has rapidly become the fastest-growing syndicate in the Lloyd's of London market, achieving an impressive $100 million in profit within just three years.Our teams come from diverse backgrounds and collaborate in an agile, cross-functional manner to create the best customer experience possible. With ambitious goals ahead, we’re looking for brilliant minds to challenge the status quo and help us reach new heights.Where do you fit in?As a Senior Cloud Security Engineer, you will closely collaborate with engineering teams across Cloud Services, Infrastructure, and Product teams to integrate risk-aware technical security controls into our services, products, and development workflows.Your responsibilities will include designing, implementing, and managing robust security measures across our cloud platforms. You will work in tandem with cross-functional teams to devise security strategies, automate security processes, and proactively detect and address potential threats. This position will also involve developing cloud-native security tools, automating our processes, and leveraging infrastructure as code.Moreover, this role will utilize AI to responsibly build automation and agentic AI workflows, enhancing productivity while ensuring data protection and appropriate security controls are upheld.What will you be doing? Cloud Security Architecture & Design:Design and implement security architectures for cloud systems, including GCP, Azure, AWS, or hybrid environments.Develop secure cloud architectures for AI/LLM workloads and AI-enabled services, focusing on isolation patterns, secure networking, and hardened runtime configurations.Ensure security configurations and infrastructure are reproducible through infrastructure-as-code (IaC), specification-driven development (SDD), and automated deployment pipelines.Automate cloud security processes utilizing agentic AI tools.Implement robust security measures across our cloud platforms.Provide insights and suggestions for improvements on Ki's current architecture.Security Governance & Policy:Establish and enforce security policies, standards, and guidelines for cloud services.Ensure compliance with regulatory requirements such as ISO 27001, SOC 2, SOX ITGC, NIST, GDPR, and others.Conduct security assessments and audits to identify vulnerabilities and remediate them accordingly.

Join Wiz, a pioneering force in cloud security, as a Cloud Security Research Engineer. In this pivotal role within our Product team, you will be instrumental in fortifying our customers' cloud infrastructures against cyber threats. Your innovations will not only enhance our security offerings but also contribute significantly to customer success and the advancement of cloud security technologies.

Menlo Security enables secure, seamless communication and collaboration for organizations worldwide. The company supports a broad client base, including many Fortune 500 firms, leading global banks, and the Department of Defense. With strong backing from investors such as Vista Equity Partners, General Catalyst, JPMC, American Express, HSBC, and Ericsson Ventures, Menlo Security is expanding its team beyond 400 employees. Role Overview The Senior Software Engineer II will join the Service Delivery team, working either remotely in the UK time zone or from the Bracknell office. This group develops and maintains APIs and microservices that help internal teams handle customer provisioning, management, and analytics. The role involves designing and building new features, as well as improving and supporting existing applications. What You Will Do Design and implement solutions using RESTful APIs and asynchronous HTTP services. Maintain and enhance current service offerings for both internal and external users. Evaluate and optimize services and frameworks for scalability and strong performance. Write high-quality, repeatable code and uphold high standards for software delivery. Who Succeeds Here Menlo Security values team members who are ethical, organized, service-oriented, and open to feedback. The company looks for engineers who are comfortable providing constructive guidance and thrive in a growing, agile environment.

Prolific seeks a Senior Application Security Engineer to help protect its applications and user data. This position is fully remote within the UK. Key responsibilities Evaluate application security and spot potential risks Collaborate with engineering and product teams to design secure software architectures Improve security practices throughout the development lifecycle Support efforts to safeguard user data and maintain trust in the Prolific platform Role focus This role centers on working closely with technical teams to build security into every stage of software development. The Senior Application Security Engineer will play a part in shaping secure solutions and reinforcing Prolific’s commitment to protecting its users. Location This is a remote role open to candidates based in the UK.

About LastPassLastPass is a frontrunner in password and identity management, simplifying the login experience for both personal and professional life. With the trust of over 100,000 businesses and millions of users globally, LastPass merges cutting-edge security with seamless access for individuals, families, small business owners, and enterprise professionals. Rest assured, your vital credentials are safeguarded and accessible whenever you need them.Interested in our offerings? Explore our website and try it for free!We value fresh ideas, support your professional development, and acknowledge your contributions. If this resonates with your career aspirations, we invite you to Join Us!Position Overview:LastPass is actively searching for a Staff Cloud Security Engineer. In this pivotal role, you will work collaboratively with our DevOps, CI/CD engineers, and Architecture team to establish and uphold security best practices throughout our infrastructure.About Our Team:The Product Security team at LastPass is dedicated to protecting the integrity and confidentiality of our company and users’ data. We comprise a team of adept application and cloud security engineers who work closely with engineering, platform, and trust & security teams.Are you enthusiastic about tackling intricate challenges and driven by scalability? This role is tailored for you!Collaboration:As a Staff Cloud Security Engineer, you will engage closely with DevOps, CI/CD engineers, and our architecture division to maintain security excellence across our infrastructure.Exciting Challenges Await You:Utilize your security architecture expertise to assist engineers in developing and securely operating products and services from inception.Evaluate, design, and implement security processes and controls to satisfy security, compliance, and audit requirements.Conduct proactive research to identify emerging threats and potential attack vectors.Collaborate with cross-functional teams to enhance security knowledge and practices.

Experian is hiring a Senior Cloud Data Security Engineer in Nottingham. This role focuses on safeguarding cloud-based data systems through strong security design and implementation. What you will do Design and implement security controls for cloud data environments Work with teams across the business to maintain and improve data protection Ensure compliance with relevant industry standards and best practices Continuously assess and strengthen the company’s data security posture Collaboration Expect to partner with colleagues from multiple departments, sharing knowledge and coordinating efforts to address security needs across the organization.

Abound is changing how consumer lending works in the UK and beyond. By combining advanced AI with Open Banking data, the company looks at a person’s complete financial situation, not just a credit score, to make lending decisions that are fairer and more accurate. Since launch, Abound has issued over £1.3bn in loans, with a credit performance that outpaces industry averages. The company became profitable within 2.5 years and has backing from major investors, including Citi and Deutsche Bank. With over £2bn in funding, Abound is recognized as one of Europe’s fastest-growing fintechs. Role overview This Senior Security Engineer position is based in London and sits within the Platform team. The role blends DevSecOps responsibilities, serving as a bridge between product engineering and Corporate IT. As a hands-on contributor, the Senior Security Engineer critically reviews security architecture across both production and internal IT environments. During the first 6 to 12 months, the focus will be on designing and implementing next-generation cloud security architecture in AWS and GCP. The role also involves building and maturing internal SOC capabilities, particularly around detection and response. What you will do Manage Microsoft Sentinel to strengthen SIEM/SOAR capabilities Automate RBAC for identity and access management across AWS, Microsoft Entra, and internal systems Embed security controls into GitLab CI/CD pipelines, including scanning, infrastructure-as-code reviews, and automated policy enforcement Support a shift-left approach by integrating security throughout the software development lifecycle Technology stack Cloud & Compute: AWS, ECS Fargate, Aurora, Lambda, GCP Data Lake: S3, DMS, Glue Security & Identity: Microsoft Defender (XDR), Microsoft Sentinel (SIEM/SOAR), Defender for Cloud (CSPM), Microsoft 365, Entra, Intune Cloud Security Tooling: GuardDuty, Security Hub, Inspector, Security Command Center Code & Infrastructure: Terraform, GitLab CI/CD

Join Zscaler as a Senior Sales Engineer specializing in Zero Trust Cloud solutions. In this pivotal role, you will be instrumental in driving our innovative cloud security initiatives and collaborating closely with sales teams to enhance customer engagement.

Menlo Security focuses on secure connectivity, enabling organizations and individuals to communicate and collaborate safely. The company supports a wide range of clients, including Fortune 500 firms, most of the world’s largest banks, and the Department of Defense. With a growing team of over 400 employees, Menlo Security is backed by investors such as Vista Equity Partners, General Catalyst, JPMC, American Express, HSBC, and Ericsson Ventures. Role overview The Engineering Manager will join the Threat Infrastructure team in the UK. This position leads a geographically distributed group, guiding technical decisions and supporting the development of tools that power Menlo Security’s remote browser technology. The platform serves millions of users across desktop and mobile devices worldwide. What you will do Manage and mentor a distributed engineering team Provide technical leadership in architecture, design, development, deployment, and monitoring of threat infrastructure products Support a collaborative culture with regular design and code reviews Who we’re looking for Strong organizational skills and commitment to project completion Customer-focused mindset and openness to feedback Ability to provide constructive guidance and lead with empathy Experience with browser technologies is a plus Location and work arrangement This is a full-time role based in the UK. Work remotely within the UK time zone or from the Bracknell office.

Role OverviewAt Theodo, we are assembling a dynamic team of talented engineers who are passionate about producing exceptional code consistently while enhancing their technical skills. This position is ideal for individuals who excel at tackling complex technical challenges, learning from their exceptional colleagues, and diving deep into the code every day.As part of a high-performing team, you will engage with fast-paced, real-world client projects. This entails thoughtful collaboration, clear communication, and a proactive approach to overcoming obstacles, both for yourself and your teammates.We seek engineers who ask insightful questions, leverage their teammates' knowledge, and understand how to obtain the resources necessary to perform at their best.The Cloud Engineer Role involves building with AWS Serverless technologies. This is a client-facing role where you will participate in discussions and planning with our external clients, engaging in both technical and business-oriented conversations. While our primary stack consists of AWS Serverless and TypeScript, you will have the opportunity to gain experience with diverse methodologies and occasionally explore different technologies.

Join our dynamic team at NMI as an Information Security Engineer. In this pivotal role, you will spearhead enterprise-level information security initiatives, ensuring that security practices are deeply embedded within our operations. Your responsibilities will include designing, implementing, and maintaining a robust security infrastructure that safeguards our organization's networks, systems, and data against cyber threats. You will build and manage security tools, perform comprehensive vulnerability assessments, and respond effectively to security incidents. Furthermore, you will provide expert advice on cybersecurity matters to various stakeholders within the business.This is primarily a remote position, with occasional responsibilities at our Bristol, UK office.

Mattermost is a collaborative workflow platform trusted by organizations in defense, intelligence, security, and critical infrastructure. The platform offers secure messaging, file sharing, workflow automation, audio and screensharing, and project management. Customers retain full control over their data and operations. Mattermost supports mission planning, real-time operations, DevSecOps, incident response, and cyber defense for both tactical teams and enterprise headquarters. More details can be found at www.mattermost.com. Role overview This fully remote Senior Security Engineer position is open to candidates based in the United Kingdom. The role focuses on protecting Mattermost's people, infrastructure, and tools as the company builds and hosts its platform. This position blends enterprise security engineering, cloud information security, and AI-driven threat response. What you will do Lead security and IT projects to strengthen Mattermost's security posture Detect, investigate, and resolve security incidents using SIEM, EDR, and SOAR tools such as CrowdStrike and SentinelOne Conduct proactive threat hunting across cloud and endpoint environments, applying Zero Trust principles Oversee identity and access management (IAM) and company-wide security monitoring systems Contribute to the development of security policies, incident response strategies, forensics, and endpoint management processes Why join Mattermost Fully remote role with a globally distributed team Direct influence on security strategy and execution Competitive salary, equity, and comprehensive benefits Opportunity to make an impact in high-stakes environments

Location: London Start date: Immediate The Role: We are seeking exceptionally skilled and motivated software engineers who take pride in their craft to enhance our Engineering team based in London. As a successful candidate, you will collaborate within a cross-functional team that includes product managers and designers, working closely with the wider business to deliver effective code that addresses real-world challenges for both internal and external clients. You will take charge of the services overseen by your team, ensuring their development aligns with the overarching AlphaSights Engineering strategy, while also mentoring junior engineers. If you are passionate about problem-solving through coding and aspire to work alongside outstanding colleagues in a high-achievement environment, this position is ideal for you. What You’ll Do: Design Solutions: Define optimal technical solutions to business problems, contributing to a scalable architectural vision that aims to become the world's leading research platform. Ship Working Code: Our primary tech stack consists of React for the frontend and Kotlin microservices with Postgres for the backend, alongside some legacy services built in Ruby on Rails. We continually assess new technologies that could enhance our stack. Deploy and Iterate: We release updates frequently to our customers, utilizing CircleCI and Spinnaker for CI/CD, gathering feedback promptly to inform subsequent iterations. Build Your Competency: You will rapidly advance your skills by developing market-leading technology alongside experienced colleagues in a high-performance environment. Engineers can also utilize our L&D budget to accelerate their development of specific technical competencies. Maintenance and Troubleshooting: Diligently monitor our services to catch errors proactively, diagnose root causes, and deploy fixes before users are affected. Who You Are: You likely hold a degree in a STEM subject, but we are also open to candidates who have honed their skills through alternative pathways. Experience: Proven experience at a similar level within a mature Engineering team, with aspirations to elevate your career. We seek individuals with outstanding potential. Technical Expertise: Extensive knowledge in frontend engineering, including designing, building, and maintaining robust web applications.

About hyperexponential (hx)At hyperexponential, we are revolutionizing the insurance industry with our AI-powered platform, guiding critical decisions in a $7 trillion market. Our innovative solutions determine risk-taking and pricing strategies that directly impact essential outcomes, be it successful rocket launches, the market readiness of autonomous vehicles, or community recovery post-disasters.Insurance has long relied on outdated tools for billion-dollar decisions. We are changing the game by merging data, AI, and human expertise to expedite the decision-making process, empowering insurers to act swiftly, intelligently, and confidently embrace greater risks.Supported by prominent investors like a16z, Highland Europe, and Battery Ventures, we are expanding our global reach, already trusted by nearly 50 major insurers, achieving zero churn, and managing billions in premiums through our platform.What started as a singular product in one region has evolved into a multi-product, multi-territory platform that enhances every aspect of pricing and underwriting. At our core, AI drives our operations—developing groundbreaking AI tools tailored for the insurance sector, such as domain-specific AI peer programmers, and innovating workflows that reshape the industry's landscape.What sets hx apart is our talented team. Here, your impact is defined by the challenges you tackle and the discipline you exhibit, not by your title or tenure. Join a community of peers who challenge you to do your best work in an environment tailored for endurance.If you resonate with this vision, join us in shaping what comes next.About the AI Strike TeamThe AI Strike Team is committed to redefining software development at hx. Instead of merely integrating AI tools into traditional workflows, this team innovates the software development lifecycle with AI-native methodologies, enhancing both engineering efficiency and product quality.Operating with high autonomy within the broader Technology organization, the team aims to deliver complex product features at an accelerated pace compared to conventional teams while establishing the necessary safeguards to ensure safety, stability, and compliance on a large scale. Their contributions span the entire hx platform, working closely with product, platform, and infrastructure teams to deliver substantial customer value rapidly and responsibly.As a Senior member of this team, you will engage with the complete codebase, leveraging AI tools and innovative workflows to swiftly comprehend systems, deliver features, and enhance developer productivity.