Senior Security Engineer at Causaly | London

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 k…

Established in 2018, Causaly is at the forefront of transforming enterprise-level scientific research through its innovative AI platform. Our technology empowers researchers to efficiently discover, visualize, and interpret extensive biomedical knowledge while automating essential research workflows, thereby hastening the development of solutions for critical health challenges.We collaborate with some of the largest biopharma companies and prestigious institutions, addressing diverse use cases that encompass Drug Discovery, Safety, and Competitive Intelligence. To learn more about how we enhance knowledge acquisition and decision-making processes, visit our blog: Blog - Causaly.We are proudly supported by renowned venture capital firms including ICONIQ, Index Ventures, Pentech, and Marathon.About the TeamWe are seeking talented AI Engineers to join our mission of revolutionizing research outcomes in biomedical sciences. Our team leverages generative AI and intelligent agents to assist scientists in uncovering novel insights and connections from biomedical literature and datasets.Enhancing the research experience is more than just adopting the latest LLM model; it requires building trust with our users through the integration of effective guardrails, rigorous biomedical curation, consistent update cycles, and robust deployment practices. This approach ensures that our platform serves as a comprehensive resource for researchers.We are in search of AI Engineers who are passionate about applying AI to transform how biomedical professionals conduct their research and daily inquiries.Your Responsibilities· Design and implement end-to-end ML/AI solutions, from conceptualization and data exploration to deployment and monitoring, striking a balance between cutting-edge techniques and practical application to deliver tangible results.· Employ strong software engineering principles such as modularity, testing, code reviews, CI/CD, and observability to ensure AI systems are dependable, maintainable, production-ready, and adaptable to future advancements.· Evaluate various approaches including classical ML, NLP techniques, LLM-based solutions, and agentic solutions to determine the best fit for the problem at hand, considering trade-offs related to speed, cost, complexity, interpretability, and performance.· Collaborate closely with product, design, and engineering teams to define project scope, align on success metrics, and iteratively enhance user-facing features powered by AI.

Founded in 2018, Causaly is at the forefront of transforming enterprise-scale scientific research through our innovative AI platform. Our technology empowers researchers to efficiently discover, visualize, and interpret biomedical knowledge, streamlining critical research workflows to tackle some of the most pressing health challenges of our time.We partner with leading biopharma companies and institutions, focusing on diverse use cases including Drug Discovery, Safety, and Competitive Intelligence. Visit our blog to learn how we enhance knowledge acquisition and decision-making: Blog - CausalyCausaly is proudly backed by renowned venture capital firms, including ICONIQ, Index Ventures, Pentech, and Marathon.

About Us:Causaly is revolutionizing the way knowledge is acquired and insights are developed in the realm of biomedicine. Our cutting-edge AI-driven platform empowers researchers and decision-makers to swiftly discover and interpret evidence from millions of scientific publications, clinical trials, regulatory documents, and other intricate data sources within minutes.We are committed to building the world’s most sophisticated biomedical knowledge platform, utilizing a high-precision Knowledge Graph and advanced GenAI capabilities. Our technology is already being leveraged by leading biopharmaceutical firms to expedite drug discovery, enhance safety, and facilitate superior decision-making.Supported by prestigious investors such as ICONIQ, Index Ventures, Pentech, and Marathon, we are experiencing rapid growth and expanding our product offerings and market reach.The RoleWe are on the lookout for a Senior Product Designer to join our dynamic and impactful Product Design team. This individual will take charge of crafting and enhancing the user experience of our AI platform tailored for the life sciences sector.In this senior individual contributor role, you will be integrated within a cross-functional team, concentrating on agent-driven research workflows and AI-enhanced user experiences for our clientele.You will oversee the complete design process from discovery to delivery, determining how users engage with complex, intelligent, evidence-based systems in intuitive, reliable, and high-impact manners.This position transcends conventional product design; you will be designing systems, workflows, and behaviors, influencing how humans collaborate with AI in scientific and expert domains.What You’ll Be DoingProduct and Experience DesignLead the end-to-end design process of product experiences from initial discovery to final delivery.Design AI-centric workflows and agent-driven experiences, converting intricate capabilities into user-friendly interactions.Define system behaviors, states, and flows rather than just focusing on screens.Rapidly prototype across various fidelity levels using AI and coding agents to explore and validate concepts.Discovery and Problem DefinitionLead product discovery initiatives, framing challenges and pinpointing high-impact opportunities.Conduct user research and usability testing to guide design decisions.

Established in 2018, Causaly is revolutionizing the realm of enterprise-scale scientific research through our state-of-the-art AI platform. We empower researchers with innovative tools to discover, visualize, and interpret biomedical knowledge, streamlining critical research workflows to accelerate solutions for pressing health challenges.Partnering with some of the largest biopharma companies globally, we tackle diverse use cases, from Drug Discovery to Safety and Competitive Intelligence. Discover how we enhance knowledge acquisition and decision-making by exploring our insights on our blog: Blog - CausalySupported by prestigious investors like ICONIQ, Index Ventures, Pentech, and Marathon, we are on the lookout for a dynamic and technically curious Go-To-Market Engineer to help us design and develop a cutting-edge, AI-native go-to-market engine at Causaly.Unlike traditional RevOps roles, we seek a visionary builder who thrives on experimentation and automation. You will craft solutions that seamlessly integrate tools, data, and workflows to directly support our revenue teams. While HubSpot will be your starting point, the role will expand to encompass enrichment, outbound automation, AI tools, and the broader GTM technology ecosystem.This opportunity is perfect for those early in their careers who are eager to learn, comfortable with uncertainty, and driven by rapid improvement rather than perfection.Key Responsibilities:Develop and Manage GTM SystemsTake ownership of HubSpot as our primary GTM platform, managing pipelines, properties, workflows, routing, sequences, and reporting.Enhance data quality and reliability through automation, validation, and enrichment processes.Continuously streamline and refine GTM processes as the business scales.Automate and Operate AI-driven SystemsCreate and implement event-based and trigger-based workflows (e.g., funding events, organizational changes, intent signals).Develop and iterate on enrichment and outbound workflows using tools such as Clay and similar platforms.

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

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.

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 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.

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.

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.

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.

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.

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.

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.

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.

Maven Securities Holding Ltd is a distinguished proprietary trading firm that adeptly allocates internal capital across a range of strategies, including discretionary, systematic, and market-making approaches. Our team's extensive expertise encompasses traders, engineers, and technologists, all committed to optimizing our efficiency as a leading liquidity provider for globally traded derivatives. At Maven, we foster a relaxed yet rewarding culture that highly values exceptional performance. With offices located in London, Amsterdam, Hong Kong, New York, and Chicago, our Infrastructure team comprises open-minded technologists dedicated to the continuous enhancement of the end-to-end resiliency, scalability, visibility, and supportability of Maven's trading systems. The Team and the Role The Linux Engineering team is tasked with the deployment, maintenance, and stability of Maven's Linux server environment. This estate spans 10 data centers across Europe and the US, supporting all trading applications. Our infrastructure includes both bare-metal deployments and containers, facilitated by an expanding array of Kubernetes clusters, all operating on-premises. The team operates from Chicago and London, covering both European and US market hours. We proactively monitor our infrastructure for any faults and performance issues, translate technical challenges for our trading teams, design and test new hardware, kernels, and operating systems, manage centralized storage arrays that support our data pipelines, and stay up-to-date with the latest developments in the Linux open-source community. We leverage a variety of open-source tools to extract comprehensive data from our platform and dedicate time to thoroughly investigate issues to ensure we maintain a clear understanding of our environment.

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.