Senior Security Engineer

As a Senior Software Engineer specializing in Proactive Security at Deliveroo, you will play a crucial role in safeguarding our platform against emerging threats. You will collaborate with cross-functional teams to design and implement robust security solutions that protect customer data and ensure the integrity of our systems.Your expertise in software development and security practices will be instrumental in identifying vulnerabilities and enhancing our security posture. This role will challenge you to think critically and innovate solutions in a fast-paced environment.

Join Deliveroo as a Senior Engineering Manager in our Proactive Security team. In this pivotal role, you will lead a talented team of engineers dedicated to enhancing our security posture and proactively addressing cyber threats. You will spearhead innovative projects, providing both technical leadership and strategic direction to ensure the safety and integrity of our systems.

* Fully remote from the UK * Innovative Ideas. Real People. At Orca Security, we believe that in the right environment and with the right team, talent knows no boundaries. Our collaborative spirit, combined with our ambition to continuously push limits, has swiftly propelled us to unicorn status, establishing us as a global frontrunner in cloud security innovation. If you're eager to join an extraordinary team that motivates one another daily, now is the perfect moment to find your place within our group. We are on the lookout for passionate and talented individuals like you to become a part of our R&D organization and contribute to our mission of reshaping the future of cloud security. Are you ready to take the plunge and swim with our pod? Position Highlights Rapid Growth: Over the last seven years, we have accomplished milestones that typically take other companies a decade or more. During this time, we’ve significantly expanded our workforce, broadened our customer base, and quickly enhanced our product capabilities. Disruptive Innovation: Our founders recognized that traditional security solutions were inadequate for the cloud, prompting them to forge a new path. We are relentless pioneers who have developed agentless technology and continue to lead as the most comprehensive and innovative cloud security company. Robust Financial Backing: With a valuation of $1.8 billion, Orca is a cybersecurity unicorn that dominates the cloud security sector. We are supported by a remarkable group of investors, including Capital G, ICONIQ, GGV, and SVCI—a collective of CISOs who invest their own funds following thorough due diligence. Respectful and Transparent Culture: Our executives take pride in their accessibility and believe in sharing knowledge with all employees. Every team member plays a crucial role in shaping the future of our industry. About the Role As a Senior Software Engineer on the DSEC (Data & AI Security) team at Orca Security, you will be part of a vital group dedicated to safeguarding customer data and AI assets at scale. The team is responsible for scanning and analyzing a wide array of data stores and AI services—from managed databases and container images to object storage buckets and virtual machines (VMs)—to uncover sensitive data, keys, personally identifiable information (PII), and misconfigurations. You will also have the opportunity to map, model, and assess cloud AI services, providing customers with clear visibility and security insights across their data and AI landscape. This role is ideal for those who are excited about building the infrastructure that supports our Data Security Posture Management (DSPM) and AI security capabilities. You will be instrumental in helping shape the future of cloud security.

Join Vanta as a Senior Fullstack Software Engineer specializing in Privacy & Data Security. In this role, you'll leverage your extensive experience in software development to enhance our platform's privacy features while ensuring data integrity and security. You will collaborate closely with cross-functional teams to design, develop, and implement robust solutions that protect user data.

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 our dynamic team as a Reverse Engineer specializing in Mobile Software Security. In this role, you will leverage your expertise in reverse engineering and security analysis to identify and mitigate threats in mobile applications and operating systems. Your contributions will play a crucial role in enhancing the security posture of our clients.Key Responsibilities:Conduct intelligence analysis to identify and assess potential threats.Offer subject matter expertise to support various operational initiatives.Identify and evaluate new intelligence sources related to current and emerging technological threats.Skills and Expertise Required:Proficient in assembly language.Hands-on experience with Android applications and operating systems.A minimum of 3 years of relevant experience in reverse engineering and code-level security auditing, with a solid understanding of assembly language and the ability to unpack obfuscated code.Experience in both static and dynamic analysis of malicious binaries.Familiarity with Java programming.Strong analytical skills in security-related data analysis.Proficient with tools such as IDA Pro and OllyDbg.A robust foundation in security engineering, computer and network security, and authentication protocols.Qualifications:A Bachelor's degree in Engineering or a related field, or equivalent practical experience.

Why Join Deliveroo?At Deliveroo, our mission is to revolutionize how people shop and dine by seamlessly connecting consumers, restaurants, shops, and delivery riders. We strive to make food and product accessibility more convenient and enjoyable, empowering individuals to purchase what they want, when and where they desire.As a forward-thinking, technology-driven organization, we are leading the charge in one of the fastest-growing industries globally. Our small team is making a significant impact as we tackle some of the most fascinating challenges. We prioritize speed, autonomy, and innovative ideas, continuously seeking fresh perspectives.About the RoleIn the role of Senior Security Engineer, you will spearhead the development and implementation of security measures that safeguard our internal networks, workforce identities, endpoints, and corporate systems. Collaborating with security teams across the US, EU, and APAC, you will aim to minimize risk and enhance our security controls.Operating with significant independence, you will define the technical strategy, make architectural decisions, and oversee the execution of complex security projects from start to finish. Your focus will be on balancing risk mitigation with user experience, ensuring that security measures are effective without hindering employee productivity.This position emphasizes Identity and Access Management (IAM), Endpoint Security (EDR), Network Security, logging and detection engineering, and secure SaaS enablement. You will collaborate closely with IT, Legal, Privacy, Engineering, and business stakeholders to ensure that security is integrated as a fundamental practice across the organization.Our security protocols are aligned with recognized frameworks such as the CIS Critical Security Controls and the NIST Cybersecurity Framework (CSF).

Join Checkatrade as a Senior Security Engineer and play a pivotal role in safeguarding our systems and data. In this position, you will be responsible for designing and implementing robust security measures, monitoring potential threats, and ensuring compliance with industry standards. We seek a proactive individual who thrives in a fast-paced environment and is dedicated to continuous improvement.

Application Deadline: We are actively conducting interviews and aim to fill this position promptly as soon as we find the right candidate.THE OPPORTUNITYApollo Research is searching for a Senior Security Engineer to take full ownership of security protocols and practices within our organization. As the first dedicated security hire, you will play a crucial role in maintaining the trust of our innovative AI lab partners and supporting our research mission. This position is embedded within the engineering team and reports directly to the CEO.YOUR RESPONSIBILITIES WILL INCLUDE- Establishing and leading Apollo's security program. You will create and manage the security roadmap, perform risk assessments, and adapt the program as the organization evolves, defining the security posture in relation to our size, threat model, and partner relationships.- Fostering trust with our AI lab partners. You will be the primary contact for security teams of our partners, building relationships with their CISOs, and ensuring our security practices are documented and meet the necessary standards for our partnerships.- Setting security strategies for engineering. You will define security principles and an AppSec strategy that the engineering team will adopt, creating efficient pathways for secure development.- Defining the use of AI tools and integrations at Apollo. You will determine approved tools, data handling procedures, and vetting processes for new technologies, ensuring a balance between security and the need for cutting-edge research tools.- Managing our security tooling stack and automating operations. You will select, implement, and oversee security controls such as EDR/MDR, endpoint management, email protection, and identity management, while automating processes wherever feasible.- Leading compliance and certification efforts. You will spearhead certification initiatives (ISO 27001, SOC 2) as required, integrating compliance into our security practices.- Managing IT administration across the organization. You will oversee Google Workspace and other IT resources.

At Menlo Security, we are dedicated to empowering secure connections, communications, and collaborations worldwide. Our mission has become increasingly vital in the current landscape shaped by COVID-19. We proudly serve a diverse clientele, including Fortune 500 companies, 9 out of the 10 largest global banks, and the Department of Defense.As we transition from a team of 400 towards our next growth phase, we seek passionate individuals who exhibit empathy and adaptability. The ideal candidate will possess a strong ethical foundation, exceptional organizational skills, and a commitment to service. A willingness to both give and receive constructive feedback is essential.Backed by industry-leading investors such as Vista Equity Partners, General Catalyst, JPMC, American Express, HSBC, and Ericsson Ventures, Menlo is poised for significant growth.Position Overview:The Senior Security Engineer will play a crucial role in safeguarding our organization’s digital assets, infrastructure, and data. Responsibilities include designing, implementing, and maintaining security systems and controls, managing security tools, conducting risk assessments, responding to incidents, and ensuring compliance with relevant security standards. This position involves close collaboration with various teams within Menlo to promote security best practices across all technological initiatives, thereby enhancing our security posture and resilience.Key Responsibilities:Security Operations & Monitoring:Oversee the SIEM platform and manage security alerts to identify, investigate, and respond to potential threats.Administer and optimize EDR solutions, specifically Crowdstrike, to ensure comprehensive endpoint protection.Lead incident response efforts, including investigation, containment, remediation, and post-incident analysis.Vulnerability & Risk Management:Oversee the vulnerability management program, including scanning, prioritization, and coordination of remediation efforts.Conduct risk assessments and formulate strategies for risk mitigation.

About Anaplan Anaplan builds an AI-powered scenario planning and analytics platform that helps organizations make sharper business decisions. Over 2,400 global companies, including names like Coca-Cola, LinkedIn, Adobe, LVMH, and Bayer, rely on Anaplan to stay competitive and navigate changing markets. The team values diverse perspectives, sets ambitious goals, and celebrates progress of all sizes. Anaplan’s culture emphasizes customer success, leadership at every level, and disciplined execution. Employees find opportunities for growth, connection, and recognition. Role Overview: Senior Product Security Engineer Location: London, United Kingdom This role focuses on strengthening security across Anaplan’s products and operations. The Senior Product Security Engineer leads initiatives to reduce risk, partners with teams across the company, and helps shape the security strategy. Main Responsibilities Design, lead, and implement security programs that address key risks and deliver on security goals. Translate findings from security assessments into practical projects that improve security at scale. Work with both technical and non-technical teams to embed security controls and encourage secure practices throughout the company. Define and track metrics to show the impact and effectiveness of security programs. Manage stakeholder expectations, using problem-solving and negotiation skills to build trust across teams. Support innovation and proof-of-concept work within the security function, helping teams focus on the right priorities. Collaborate with cross-functional groups to advance security objectives. Partner with the CISO to prepare executive reports, status updates, and company-wide communications, ensuring visibility into important security milestones and risks.

The Systems Development team at Wehrtyou is integral to our mission, building and maintaining a robust platform that supports all Systems teams. As a Senior Software Engineer specializing in Security, you will leverage your expertise in Python and Go to create innovative solutions to complex security challenges. Your role will involve enhancing and integrating our existing tools and libraries across the platform, as well as designing and developing new tools to streamline trading, research, installation, and monitoring processes, ensuring they are secure and reliable.This position presents a unique opportunity to significantly influence a critical aspect of our expanding infrastructure. A typical day may include:Developing and maintaining automated tools and software features for secure machine provisioning, monitoring, metrics collection, maintenance, secrets management, and network configuration.Diagnosing and resolving software bugs across a fleet of Linux machines, tackling issues at the application, network, operating system, and kernel levels.Crafting configuration management scripts to build, deploy, and sustain new services.Contributing to setting the strategic direction for the Systems Python platform.Collaborating with HRT’s engineering teams to devise solutions to various security challenges.

Join Samsara as a Senior Security Engineer on our Vulnerability Team, where you'll play a pivotal role in enhancing our security posture. In this position, you will be responsible for identifying vulnerabilities within our systems and implementing effective solutions to mitigate risks. Collaborate with cross-functional teams to ensure the security of our products and infrastructure, and contribute to our mission of bringing transparency and safety to the IoT space.

About Anaplan Anaplan builds an AI-powered scenario planning and analysis platform that helps businesses make confident decisions and stay ahead in the market. Our customers include Fortune 50 leaders such as Coca-Cola, LinkedIn, Adobe, LVMH, and Bayer. We value innovation, customer success, and collaboration. Our teams work globally, celebrating diversity and leadership at every level. At Anaplan, people set ambitious goals and take pride in both individual and shared achievements. Role Overview: Senior Product Security Engineer Location: London, United Kingdom The Senior Product Security Engineer will help shape and strengthen Anaplan’s security programs. This role focuses on designing, implementing, and measuring security initiatives that protect our platform and support our business goals. What You Will Do Design and implement security programs to reduce risk and meet key security objectives. Turn findings from security assessments into actionable initiatives and scalable programs. Work with both technical and non-technical teams to integrate security controls and encourage secure practices throughout the company. Set and track metrics to measure the effectiveness and impact of security efforts. Manage expectations and build trust with stakeholders at all levels, using strong problem-solving and negotiation skills. Improve the security innovation and proof-of-concept process, helping teams focus on the most important challenges. Coordinate with cross-functional teams to advance security goals. Collaborate with the CISO to prepare executive reports, provide status updates, and highlight progress on critical security milestones and risks.

Role overview Nexthink is hiring a Senior Corporate Security Engineer in London. This position focuses on protecting information systems and sensitive data by designing, implementing, and managing security controls throughout the corporate environment. What you will do Lead the creation and rollout of security measures for corporate systems Oversee the ongoing management of security protocols to keep data safe Work with teams across the company to identify and assess security risks Support compliance with relevant industry standards Collaboration This role works closely with cross-functional groups, making sure security stays a shared priority and that risk assessments are both thorough and actionable.

AJ Bell seeks a Senior Information Security Engineer to strengthen the protection of company information systems and support compliance initiatives. The position is offered as a hybrid role, with the option to work from either the Manchester or London office and some flexibility for remote work. Key responsibilities Identify and assess security vulnerabilities within company systems Implement and maintain security controls to protect data and infrastructure Collaborate with teams across the business to promote effective security practices Assist in maintaining compliance with relevant regulations and internal policies Location This role is based in Manchester or London with a hybrid work arrangement, allowing for both office presence and remote work.

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.

Why Join Faculty?Founded in 2014, Faculty is at the forefront of harnessing AI as a transformative technology for organizations globally. With a client base of over 350, we've dedicated ourselves to delivering human-centric AI solutions that drive significant performance improvements. Discover our real-world impact here.We prioritize innovation over trends, focusing on the responsible development and deployment of AI technologies that truly make a difference. Our expertise spans across various sectors including government, finance, retail, energy, life sciences, and defense, enabling us to deliver unparalleled service and results.As we continue to grow, we are eager to find individuals who share our passion for technology and a commitment to building a meaningful legacy through AI.Join us to explore the potential of AI in defining the future.About Our TeamOur Government and Public Services unit is dedicated to leveraging AI to enhance citizen services and promote the public good. From informing strategic decisions in government to optimizing the NHS and safeguarding children from harmful online content, our work demonstrates the transformative power of AI across all levels of government. Due to the sensitive nature of our projects, candidates may be required to obtain UK Security Clearance (SC) and may need to work on-site with government clients periodically.Your RoleAs a Senior Cyber Security Engineer, you will spearhead our security initiatives across critical projects, ensuring the intersection of robust engineering and AI safety. Your role will be vital in protecting essential infrastructure and conducting advanced

Join our innovative team at getscope as a Senior Software Engineer. In this pivotal role, you will design, develop, and implement cutting-edge software solutions that will drive our projects forward. Collaborate with cross-functional teams to translate business needs into technical requirements while ensuring high quality and performance of applications.