Experienced Software Engineer - Security

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 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.

* 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.

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 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.

Join Palantir, a pioneering force in data-driven software solutions, as a Senior Application Security Engineer. Our mission is to empower organizations to make critical decisions that save lives, enhance security, and drive innovation. As part of our esteemed Product Security team, you will collaborate closely with cross-functional teams to implement secure-by-design principles across our product offerings. Your expertise will be crucial in conducting comprehensive security reviews, threat modeling, and guiding the architectural design to ensure robust security measures are integrated from the ground up. You will lead strategic security initiatives that enhance our entire product suite and help identify and mitigate potential vulnerabilities through advanced analysis techniques. This is an opportunity to make a significant impact in a company dedicated to transforming the world through technology.

At Vanta, we are driven by our mission to empower businesses to earn and demonstrate trust. We firmly believe that security should be a continuous journey, not a destination. Our platform enables companies to enhance their security practices effortlessly, ensuring a seamless verification process. Join our diverse and talented team, where many have thrived without prior security experience.As a Staff Software Engineer, you will spearhead pivotal technical initiatives that deliver substantial value to our customers and organization. In this influential role within our expanding Privacy & Data Security team, based in London, you'll help strengthen our engineering footprint across Europe. Collaborating closely with product management, design, and a growing engineering team, you will drive the discovery and development of privacy features that enhance Vanta's offerings. Your contributions will expedite product development and ensure a consistent experience for all customer segments.With our rapid growth, it’s crucial to invest in the right abstractions and systems that will enable scalability. As a Staff Software Engineer, you'll identify strategic technical initiatives that resonate across our engineering team, setting a high standard for technical excellence and culture. Your past experiences will be invaluable in propelling Vanta's growth trajectory.Our company has achieved remarkable product-market fit and has been effectively monetizing since the onboarding of our first customer. The pace of our growth presents unique, career-defining opportunities for engineers looking to fast-track their development while contributing to a rapidly scaling organization.This role is remote-first, though we anticipate occasional travel to our London office for team collaboration.We invite you to be a part of our kind and talented team, where your skills can flourish, irrespective of past security experience.Your Responsibilities as a Staff Software Engineer at Vanta:Lead, scope, and execute significant technical projects, laying the foundation for scalable, performant, and adaptable systems.Design, develop, and maintain new product functionalities and infrastructure using modern technologies (TypeScript, React, Node.js).

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

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.

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.

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.

Join Us in Shaping the Future of Cyber Security.At Quantexa, we believe in the power of innovation and continuous improvement. Our mission is to forge meaningful relationships with our clients and drive impactful change across various industries. With a diverse workforce comprising over 50 nationalities and 20 languages spoken, we foster an inclusive environment where every voice matters. Here, you will find the autonomy and support needed to craft a career that aligns with your aspirations.The Role.We are seeking a proactive and technically skilled Cyber Security Engineer to join our Security Operations team. In this hands-on role, you will be instrumental in safeguarding Quantexa's digital assets. Your responsibilities will include the operational management, optimization, and monitoring of essential security platforms, focusing on Zscaler, cloud monitoring via Wiz, and endpoint detection and response through CrowdStrike.Collaborating closely with the broader Security Operations team, you will ensure that security alerts, findings, and detections are efficiently triaged, validated, documented, and remediated. Your contributions will directly enhance Quantexa's security posture by minimizing risk, bolstering detection capabilities, and ensuring timely responses to security incidents.This position is ideal for a curious and detail-oriented professional who thrives on working with cutting-edge security tools, embraces disciplined execution, and seeks opportunities for ongoing improvement.Your Responsibilities.Wiz (Cloud Security Posture Management)Daily monitoring and triaging of Wiz findings, validating alerts and assessing operational impact.Engaging in tuning and threat hunting within Wiz and other security tools.Identifying misconfigurations, excessive permissions, and exposed assets while escalating issues as necessary.Tracking remediation progress with engineering teams and ensuring the resolution of high-priority issues.Zscaler (Web Security Tunnel 2.0)Reviewing and triaging Zscaler alerts and policy violations according to documented response procedures.Investigating suspicious traffic, access attempts, and user activity to determine legitimacy.

About the Position Jane Street is seeking a skilled Identity Security Engineer with expertise in engineering hybrid Windows platforms to become a vital member of our expanding team. Our IT Security team is committed to safeguarding access to Jane Street's IT systems. In this role, you will be instrumental in enhancing the organization's security posture through a blend of hands-on technical work and collaborative efforts with cross-functional engineering teams to initiate transformative security projects. Key Responsibilities: Serve as a technical security authority, offering insights on EntraID, M365, Azure tools, and security best practices. Lead the implementation and validation of robust security controls to minimize attack pathways between on-premises and external platforms. Identify security vulnerabilities and recommend operational improvements to meet our security standards. Provide technical guidance and influence cross-functional technology teams to facilitate cloud adoption. We are looking for an individual ready to make an immediate impact, capable of prioritizing work in a fast-paced environment. This position is more than just execution; we will rely on your judgment and quick thinking to guide our remediation and mitigation strategies for our Windows infrastructure. Your decisions will have far-reaching implications across the firm. About You: Possess a solid understanding of Microsoft security policies and configurations across Microsoft cloud services (SaaS/PaaS), IAM, and Privilege Access Management. Exhibit a strong grasp of industry-standard SSO technologies and authentication protocols (OpenID Connect, SAML, OAuth, Kerberos, LDAP, etc.). Have experience designing, implementing, and supporting Microsoft security infrastructure in live environments. Provide security recommendations regarding certificate policies, templates, and key sizes to uphold secure cryptographic standards. Manage and secure Azure resources utilizing a code-driven methodology. Be eager to develop scalable and repeatable security practices through automation, including certificate enrollment and renewal processes. Fluent in English. If you are a recruiting agency interested in partnering with us, please reach out to agency-partnerships@janestreet.com.

Join our dynamic team at Lendable as a Cyber Security Engineer, where you will play a pivotal role in safeguarding our digital assets and ensuring the integrity of our systems. In this position, you will be responsible for the design, implementation, and maintenance of security protocols across our network and applications. You will work closely with cross-functional teams to identify vulnerabilities and develop strategies to mitigate risks.

Lead Principal Security EngineerLocation: London (Hybrid) | Practice Area: Technology & Engineering | Type: PermanentShape the future of digital finance by spearheading cutting-edge cybersecurity initiativesThe RoleAs a Lead Principal Security Engineer at Capco, you will spearhead the design, implementation, and integration of comprehensive security frameworks across both cloud and on-premise environments. Your primary responsibility will be to collaborate with engineering and client teams to integrate security best practices throughout the Software Development Life Cycle (SDLC), while enhancing our capabilities in vulnerability management, compliance, and secure architecture.What You’ll DoLead enterprise-wide security initiatives utilizing SAST, DAST, SCA, and container scanning tools such as CheckmarxOne and Prisma Cloud.Design and implement secure cloud infrastructures, endpoint protection measures, and data encryption strategies.Champion secure-by-design principles and integrate security tools into CI/CD pipelines.Conduct comprehensive security audits, vulnerability assessments, and threat analyses across all systems.Mentor engineering teams on secure development practices and help build Capco’s internal security knowledge repository.What We’re Looking ForExtensive experience in application and cloud security across AWS, Azure, or GCP.Proven proficiency in integrating SAST, DAST, SCA, and container scanning solutions.In-depth knowledge of data protection methodologies, including encryption and data masking techniques.Familiarity with industry standards and frameworks such as ISO 27001, NIST, and OWASP.Programming skills in languages such as Python, Java, or Go.Bonus Points ForRelevant certifications, including CISSP, CSSLP, or cloud-specific security credentials.Experience in mentoring security engineers or contributing to RFPs and thought leadership initiatives.Exposure to secure DevOps (DevSecOps) practices and compliance frameworks.Experience with tools like Prisma Cloud, CheckmarxOne, or their equivalents.Exceptional stakeholder engagement and communication skills.

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.

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.

Join our dynamic team at Blockchain as an Infrastructure Security Engineer. In this pivotal role, you will be responsible for designing, implementing, and maintaining robust security architectures to safeguard our cutting-edge blockchain technologies. Your expertise will be essential in identifying vulnerabilities, managing security incidents, and ensuring compliance with industry standards.We are looking for a passionate individual who thrives in a fast-paced environment and is eager to contribute to the future of decentralized technologies.

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.