Cyber Security Engineer

About UsAt TrustFlight, we are a pioneering force in mission-critical software systems and technical services, earning the trust of the aerospace and aviation industries globally. Our cutting-edge solutions enhance the safety and efficiency of aviation operations, safeguarding hundreds of thousands of passengers and crew each month.Why TrustFlight?Our Mission: To transform aviation by providing digital workflow solutions that bolster safety, streamline operations, and instill confidence throughout the industry.Impact: Over 200,000 users depend on our systems daily for operational safety, compliance management, and critical decision-making.Core Values: We uphold integrity, responsibility, innovation, and excellence, empowering our partners to operate with assurance.Join us in shaping the future of aviation through technology.Your RoleAs a Security Assurance Engineer, you will play a vital role in ensuring that TrustFlight’s aviation software and services are secure, resilient, and trustworthy as the company expands globally. This hands-on position focuses on developing and validating security controls that are effective in real-world scenarios.You will be based in London, UK, and report to the CIO while collaborating closely with Platform, Infrastructure, and Application Engineering teams across various time zones. Your contributions will directly support TrustFlight in meeting regulatory, customer, and industry security expectations, while enabling teams to operate swiftly and securely.What You Will DoDesign, implement, and manage security solutions, controls, and supporting tools across platform, infrastructure, and application security domains.Establish, implement, and continuously evaluate security controls to ensure their efficacy in real-world operations.Oversee the Security Information and Event Management (SIEM) capabilities, ensuring effective security monitoring and assurance.Identify, assess, and prioritize security risks and control gaps, translating findings into actionable technical and operational enhancements.Utilize automation to enhance security processes and increase efficiency.

About UsTrustFlight is a pioneering aviation software firm that specializes in creating state-of-the-art AI, digital workflow, and analytics applications tailored for the aviation sector. Our innovative software enables numerous airlines, business jet operators, MROs, training organizations, and aviation service providers globally to enhance safety, streamline operations, and boost overall efficiency.As one of the largest independent software providers in the aviation industry, we are trusted by over 1,600 organizations across more than 120 countries, including many of the leading operators worldwide.Why Join TrustFlight? Mission: We aim to revolutionize aviation through advanced digital workflow solutions that enhance safety, streamline operations, and instill confidence throughout the industry. Impact: Daily, over 200,000 users depend on our systems for operational safety, compliance management, and critical decision-making. Core Values: Our commitment to integrity, responsibility, innovation, and excellence empowers our partners to operate with confidence.Your RoleAs we embark on a significant phase of growth—expanding our product ecosystem, investing in AI capabilities, and scaling our global customer base—we are seeking a Head of Product. This pivotal role will shape the next generation of aviation workflow technology and elevate the performance and discipline of our product organization.In this role, you will lead the Product function at TrustFlight, defining the strategic direction for our comprehensive SaaS portfolio. You will oversee the vision, roadmap, and execution for Centrik, Tech Log, SmartSuite, and our evolving platform capabilities. Reporting directly to the CEO, you will establish high standards for product excellence, refine our product processes, and mentor a diverse product organization dedicated to delivering top-tier products for aviation clients across the globe.A key aspect of this position involves spearheading TrustFlight’s transformation into an AI-native company—integrating AI tools into our product team’s workflow and defining a product vision for AI-driven capabilities.

Join Our Team as a Security EngineerAt incident.io, we are transforming incident response with our cutting-edge AI platform, dedicated to minimizing response times and enhancing reliability. Our comprehensive solution integrates on-call management, incident response, AI SRE, and status updates into one seamless platform, empowering teams to act swiftly, reduce outages, and keep their customers informed.Since our inception in 2021, we have successfully assisted over 1,500 organizations, including renowned names like Netflix, Airbnb, and Block, in managing over 500,000 incidents. Each month, thousands of engineers, product managers, and support staff rely on incident.io to restore services efficiently, maintain alignment during high-pressure situations, and focus on what truly matters.We are a rapidly expanding, ambitious team that values our customers, the quality of our product, and the magic we create together. With $100M raised from prestigious investors like Index Ventures, Insight Partners, and Point Nine, along with contributions from top executives in the tech industry, we’re poised for significant growth.Your RoleAs our inaugural Security Engineer, you will play a vital role in our product teams, ensuring application security is integrated from the foundational stages. Collaborating closely with engineers, you will identify vulnerabilities before they progress to production, mentor your peers on secure coding practices, and foster a culture where security is a primary focus.This position offers a unique opportunity to work at the intersection of security and engineering, contributing to the design and development of secure systems that align with our commitment to customer satisfaction.

About ARQ ARQ is one of the fastest-growing fintech companies worldwide, focused on changing how people move money across borders. The team is building infrastructure for seamless value transfer. Working here means contributing directly to the product, culture, and growth. Those looking to solve meaningful problems and make an impact at a global scale will find a place to grow quickly at ARQ. Role Overview: Security Engineer (London) This Security Engineer role is based in London. The position centers on strengthening ARQ’s security posture across infrastructure, applications, and workflows. Collaboration with teams across the company is essential to drive improvements and maintain high standards for data and system protection. Main Responsibilities Develop and refine SIEM detection rules, alert pipelines, and automated response playbooks using platforms such as Datadog SIEM, CrowdStrike, and Cloudflare. Contribute to incident response readiness by creating incident response playbooks, running tabletop exercises, and setting up forensic procedures. Support data loss prevention (DLP) strategies and data protection across Google Workspace, Slack, and internal tools. Conduct cloud security assessments focused on AWS and Kubernetes environments. Lead application security projects, including threat modeling, secure code reviews, API testing, and enhancing security pipelines. Assess and secure AI and agentic workflows by reviewing prompts, preventing harmful actions, and managing risks related to data exposure. Set up and manage the vendor security assessment process, building a scalable due diligence framework for onboarding third parties.

Join Flohealth as a Cloud Security Engineer, where you will play a pivotal role in safeguarding our cloud environments. Your expertise in cloud security principles and practices will be fundamental in developing and implementing robust security measures.In this role, you'll collaborate with cross-functional teams to assess and enhance our security posture, ensuring compliance with industry standards. Your contributions will directly impact the security and integrity of our data and services.

Causaly develops an AI-powered platform designed to help researchers and decision-makers in biomedicine quickly find and interpret evidence from scientific publications, clinical trials, regulatory documents, and complex data sources. The company’s mission centers on building a high-precision Knowledge Graph and applying generative AI to advance biomedical knowledge. Leading biopharmaceutical organizations use Causaly’s technology to accelerate drug discovery, improve safety, and support informed decisions. With backing from investors such as ICONIQ, Index Ventures, Pentech, and Marathon, Causaly continues to expand its product offerings and market reach. Role overview The Senior Security Engineer position at Causaly is based in London and offers the chance to shape the company’s security strategy and processes. This role provides significant autonomy and involves working closely with the security team, as well as collaborating across engineering and product groups. The Security Engineer will take ownership of vulnerability management, advise teams on security matters, and support SecOps activities. Expect to define strategies, build and refine processes, and serve as a trusted advisor throughout the engineering organization. Key responsibilities Lead the vulnerability management program: set strategy, select tools, prioritize work, and track remediation for dependencies, containers, and cloud infrastructure. Develop and maintain a dependency security strategy, including policies for third-party library use and update schedules. Integrate and manage security tools within CI/CD pipelines, such as SAST, SCA, secrets detection, and container scanning. Act as a security consultant for product and engineering teams, supporting design reviews, architecture decisions, and secure coding practices. Define and maintain security standards and guidelines that are practical for development teams. Oversee and improve the Security Champions program to build security awareness and skills across engineering teams. Support SecOps with incident triage and response, providing security engineering expertise when needed.

IT & Security EngineerJoin Solve Intelligence, one of Europe's fastest-growing AI companies, as we expand our IT and security infrastructure!Salary: £65K – £90K plus equity. This is a full-time, in-person role based in London.About the RoleAre you ready to take on a pivotal role in a rapidly growing YC-backed startup? As our founding IT hire, you will collaborate directly with the CTO to design and implement the systems that will facilitate our growth from 40 to 200 employees.Your ResponsibilitiesOversee internal IT operations: Device management using Jamf, Google Workspace administration, and user onboarding/offboarding.Enhance our security and compliance posture: Lead ISO 27001 and SOC 2 Type 2 programs, security policies, and audit processes.Manage customer-facing SSO: Configure enterprise SSO (SAML/OIDC), liaise with customer IT teams, and collaborate with engineers on automation.Design scalable systems: Develop tools, documentation, and workflows to ensure repeatable and efficient IT and security processes.Your ProfileWe're seeking a proactive IT and security engineer who views IT as an engineering discipline rather than a support function. You should be comfortable making decisions and collaborating closely with both technical and non-technical teams.

Join our dynamic team at natter as a Security Engineer, where you'll play a pivotal role in safeguarding our systems and data. Your expertise will help us enhance our security measures and protect our digital assets.

As a Senior Quality Assurance Engineer at Hudl, you'll play a pivotal role in ensuring the quality and reliability of our cutting-edge software solutions. You will collaborate closely with development teams, utilizing your expertise to design and implement comprehensive testing strategies, automate testing processes, and contribute to the continuous improvement of our products. Your keen eye for detail and problem-solving skills will help us deliver exceptional user experiences.

Join Palantir Technologies as an Information Security Engineer in London, where you will play a critical role in safeguarding our cutting-edge technology and sensitive data. Your expertise will help us develop and implement robust security strategies, ensuring that our platforms remain secure against evolving threats.

About WRITERWRITER is at the forefront of empowering the world's leading enterprises with AI-driven solutions. Our mission is to enhance human capabilities through superintelligence, proving that transformative, reliable AI is achievable. By bridging IT and business teams, we enable organizations to undergo enterprise-wide transformations. Hundreds of renowned companies, including Mars, Marriott, Uber, and Vanguard, utilize WRITER's comprehensive platform to build and deploy AI agents based on their unique data, powered by our enterprise-grade LLMs. With a valuation of $1.9B and support from top-tier investors like Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is solidifying its role as a pioneer in enterprise generative AI.Founded in 2020, and with offices in San Francisco, New York City, Austin, Chicago, and London, our dynamic team is dedicated to innovative thinking and swift action. We invite talented, dedicated builders and visionaries to join us in shaping the future of work through AI. About the RoleJoin us as a Security Engineer specializing in Application Security at WRITER, where security innovation meets enterprise-scale challenges. You will lay the foundational security measures to safeguard the AI systems that support some of the most recognizable brands globally. Collaborating closely with engineering teams, your role will be pivotal in integrating security into every aspect of our coding processes, ensuring our platform remains robust and trustworthy.This is a tremendous opportunity to shape the security landscape for enterprise AI applications, from threat modeling our LLM architectures to creating scalable automated security controls across our growing platform. Embrace the challenge of discovering creative solutions that allow us to proceed securely. You will encounter unique hurdles that most security engineers may never face, including securing AI agents, shielding training data pipelines, and designing controls for systems that are still in their infancy.This position offers the flexibility of remote work within the US or a hybrid model from our San Francisco or New York City offices, with direct reporting to the Head of Security Engineering.

Join Our Team as an IT Security Engineer!5ive Tech Limited is on the lookout for an experienced 3rd Line Infrastructure Engineer with a strong background in IT security. This role requires expertise in Security Information and Event Management (SIEM) tools such as Splunk, LogRhythm, or QRadar.As an IT Security Engineer, you will be responsible for setting up networks, servers, and providing 3rd line Business As Usual (BAU) infrastructure support. Your experience in handling various security projects and working with SIEM tools will be instrumental in enhancing our security posture.Join us and be part of a dynamic team dedicated to safeguarding our IT infrastructure!

Join Us in Empowering the UK's Small Businesses At Funding Circle, we believe that small businesses are the backbone of the economy, and our mission is to provide them with the support they need to thrive. Our innovative platform leverages advanced data analytics to facilitate rapid access to funding, ensuring that our clients can secure the resources they need in mere minutes.Combining the agility of a fintech startup with the reliability of a publicly traded company, we offer Circlers the independence to take initiative while making a significant impact on the industry.We take pride in our high-performance culture, where collaboration and support are at the forefront. We uplift one another, challenge the status quo, and succeed together because we understand that unity accelerates progress and innovation.Your Contribution Matters: Last year alone, our platform enabled businesses to generate £7.2 billion for the UK economy Join us in making a difference![Explore Our Impact Report] | [Check Our Trustpilot]Your Role Location: London (Hybrid) | Work Schedule: 2 days in-office | Salary: Competitive + BenefitsLead the definition, advocacy, and integration of secure software development lifecycle (SSDLC) practices and secure coding standards throughout engineering teams via collaboration, training, and the use of tools.Conduct threat modeling exercises for cloud-native applications, microservices, and various infrastructure components.Oversee internal and external penetration testing engagements for Funding Circle's applications, services, and cloud infrastructure.Work closely with Cloud Platform Engineers, DevX, and Product Engineering to embed security requirements into system designs and technology choices from the beginning.Serve as a subject matter expert in DevSecOps, application security, and cloud security (AWS), offering guidance and mentorship to fellow engineers.Drive the implementation of security automation across cloud infrastructure configuration, vulnerability management, and compliance monitoring.Design, implement, and promote the adoption of robust security architectures, controls, and best practices within our AWS cloud environment.

CUBE delivers regulatory intelligence solutions to financial services firms worldwide. Our SaaS platform uses AI to help clients manage complex and changing compliance demands. With a global presence and a team spanning 19 countries, CUBE focuses on collaboration, diversity, and continual product improvement. In 2024, CUBE achieved 50% growth through both organic expansion and acquisitions. The company values ambition, bold thinking, and personal ownership, encouraging employees to shape their careers and contribute to ongoing innovation. Our team includes over 700 professionals working together to transform regulatory compliance for financial institutions. Role overview The Senior Security Engineer will strengthen security engineering standards across CUBE's products and platforms. This hands-on role sits within the growing security function and reports to the Head of Information Security. The position is based in London. What you will do Design and implement security controls for CUBE's SaaS products and internal platforms Integrate security practices into development workflows Develop automation and system integrations to scale security across the organization Promote security awareness and collaborate with teams to maintain high standards Requirements Strong hands-on experience in security engineering Proven ability to develop automation and integrate security tools into engineering workflows Collaborative approach and ability to promote security best practices across teams Comfort working in a role that involves building and creating new solutions

airapps is hiring a Security Engineer to help safeguard digital assets and infrastructure in the London Metropolitan Area. This role centers on identifying weaknesses, managing security risks, and ensuring strong security measures are in place. Key responsibilities Identify vulnerabilities throughout information systems Reduce and address security risks as they arise Implement and maintain effective security protocols Support efforts to comply with relevant industry standards Help strengthen the company’s overall security posture Location This position is based in the London Metropolitan Area.

Role Overview Aircall is looking for a Security Engineer focused on Product Security to help protect our products and platform. This role is based in our London office. What You Will Do Work with teams across engineering, product, and other functions to spot vulnerabilities and address them early in the development process. Implement security measures that fit our product development lifecycle. Lead security initiatives that strengthen customer trust and protect sensitive data. Support efforts to keep our security standards high as our platform evolves. Impact This role directly shapes the security of Aircall’s products and the safety of customer data. The work supports our commitment to strong security practices and helps maintain trust with our users.

ABOUT AvolutionJoin Avolution, a prestigious global leader in Enterprise Architecture Software with over 20 years of experience. Our established presence spans across London, Sydney, Northern Virginia, and Singapore, and we are recognized in the Gartner Magic Quadrant as an industry frontrunner. Become part of our intelligent, friendly team, where your skills and initiative will drive our growth while enjoying a culture rated as collegial, collaborative, flexible, and supportive by our employees.Key ResponsibilitiesCloud & Infrastructure SecurityDesign, manage, and enhance security configurations across Azure and AWS environments, ensuring seamless integration with Office 365.Implement and enforce industry best practices for identity and access management (IAM) in Azure AD (Entra ID) and AWS IAM.Monitor cloud workloads for vulnerabilities, misconfigurations, and threats utilizing tools such as Microsoft Defender.Collaborate with DevOps/Engineering teams to embed security controls into CI/CD pipelines, advocating for DevSecOps principles.Conduct thorough security assessments, including aiding in penetration testing and risk evaluations to identify and mitigate potential vulnerabilities.Endpoint & Identity SecurityEnhance device posture, compliance, and management utilizing Microsoft Intune and Defender for Endpoint.Develop and maintain solid conditional access, multi-factor authentication (MFA), and endpoint protection policies.Oversee secure identity lifecycle processes, enforcing least-privilege access and zero-trust principles.Security OperationsRespond promptly to security alerts, incidents, and vulnerabilities with thorough investigations and remediation actions.Perform regular risk assessments, security reviews, and internal audits.Manage and optimize security tools, including SIEM, EDR, vulnerability scanners, and the Microsoft Defender suite.Lead incident response efforts and coordinate with cross-functional teams.Compliance & GovernanceSupport ISO 27001:2022 recertification and ongoing compliance activities, including internal audits.Prepare for and assist in obtaining additional compliance certifications (e.g., SOC 2, GDPR) to facilitate company growth.Develop, maintain, and enhance security policies, procedures, and technical documentation.Track, report on, and address audit findings or compliance gaps.Collaboration & CulturePartner with globally distributed teams across EMEA, AMER, and APAC regions.Educate internal teams on security best practices and cultivate a security-first culture through training and awareness initiatives.

Hypersonica builds advanced hypersonic defense technologies for Europe, aiming to set higher standards for speed, resilience, and technological independence. The company’s London office is home to a focused team dedicated to solving demanding technical problems in this field. Role overview The IT Security Expert role sits at the heart of Hypersonica’s work. This position joins a small, highly skilled group that faces complex security challenges. Technical depth, independent judgment, and the ability to work with minimal oversight are valued here. What sets this role apart Responsibilities will shift based on individual strengths and experience. Direct input into company strategy and Europe’s technological autonomy. Chance to tackle problems that others consider impossible or unconventional. Requirements Outstanding technical skills in IT security. Demonstrated independence and sound decision-making. Background in addressing significant, unconventional challenges. Creative thinking and a record of unique contributions. Location This role is based in London.

Engine by Starling is a pioneering cloud-native SaaS platform developed by Starling Bank, the UK's first and leading digital bank. We empower over 4.6 million customers and small businesses with intuitive financial tools that help them manage their money efficiently and effectively. Our mission is to spread this innovative approach to banking globally.As a cloud-native solution, Engine offers a robust platform that supports banks, building societies, and credit unions around the globe. We enable our partners to leverage advanced digital features and streamlined back-office processes that have contributed to Starling's remarkable success.At Engine, we embrace five core principles: listen, keep it simple, do the right thing, own it, and aim for greatness. Since our inception in 2022, we have rapidly grown, adopting an agile mindset that fosters innovation and adaptability. We cultivate an environment where our team members and partners can collaborate openly, take ownership, and drive projects forward.Hybrid Working EnvironmentOur headquarters are located in London, with additional offices in Manchester, Cardiff, and Southampton, as well as international locations in Dublin, Sydney, Dubai, Toronto, and New York. We prefer that our team members are within a reasonable commuting distance from one of our UK offices to facilitate in-person collaboration.Role OverviewAs the Business Information Security Officer (BISO), you will be instrumental in defining our security objectives and practices, leading the ongoing enhancement of our Information Security capabilities, and managing a dedicated Information Security Team. You will act as the primary liaison between Engine and Starling Bank’s Information Security teams, addressing all security-related inquiries from clients and auditors.We seek a curious and adaptable information security professional with strong leadership abilities who enjoys a collaborative and dynamic work environment. If you are passionate about problem-solving and engaging with diverse stakeholders, we would love to hear from you.