Founding AI Engineer (£70k-£120k + Equity) at VC-backed AI security startup

Added 26/06/2026

We are seeking a Founding AI Engineer to join a cutting-edge, VC-backed startup focused on revolutionizing security through advanced artificial intelligence technologies. In this pivotal role, you will be responsible for designing, developing, and deploying AI-driven security solutions that address complex challenges in the cybersecurity landscape. Your expertise will guide the technical direction of our products, ensuring they are not only innovative but also effective in safeguarding our clients' digital assets. The ideal candidate will possess a strong background in machine learning, data science, and software engineering. You will collaborate closely with cross-functional teams to define product requirements, develop algorithms,...

Technical Lead / CTO (+ Equity) at London startup building national security software

Added 21/05/2026

We are seeking a dynamic Technical Lead / CTO to join a pioneering London-based startup focused on developing cutting-edge national security software. In this role, you will spearhead the technical vision and strategy while overseeing the development and deployment of innovative software solutions. You will lead a talented engineering team, providing mentorship and guidance to ensure the successful execution of projects from conception to launch. You will be responsible for defining the technical architecture, implementing best practices, and fostering an agile development environment that encourages creativity and collaboration. As a key member of the leadership team, you will engage with...

Security Engineer (£110k-£200k + Equity) at $100M Series B AI a confidential company response platform

Added 08/06/2026

We are seeking an experienced Security Engineer to join a fast-growing AI-driven company poised for significant impact in the response platform space. In this role, you will be responsible for designing, implementing, and maintaining robust security measures that protect our infrastructure, applications, and data. Your expertise will help shape our security architecture and strategy, ensuring compliance with industry standards while proactively identifying and mitigating potential threats. The ideal candidate will have a strong background in cybersecurity, with a deep understanding of network security, application security, and cloud security practices. You will work closely with cross-functional teams to conduct risk assessments,...

Security GRC Manager at $20M YC-backed AI workplace infrastructure startup

Added 12/06/2026

We are seeking an experienced Security GRC Manager to join our dynamic team at a rapidly growing AI workplace infrastructure startup. In this role, you will be responsible for developing, implementing, and managing our governance, risk, and compliance (GRC) framework. You will collaborate with cross-functional teams to ensure that our security policies and procedures align with industry standards and regulatory requirements. Your expertise will be critical in identifying potential security risks and developing strategies to mitigate them, ensuring the organization’s data integrity and security posture are maintained at the highest level. The ideal candidate will have a strong background in...

Founding Platform & Security Engineer at Gradient Labs

Added 26/06/2026

We are seeking a Founding Platform & Security Engineer to join our innovative team, where you will play a crucial role in building and securing our platform from the ground up. In this position, you will design, implement, and maintain robust security measures while ensuring high availability and scalability of our infrastructure. You will collaborate closely with cross-functional teams to develop secure, efficient, and reliable systems, while also leading the charge in identifying potential threats and vulnerabilities. Your expertise will be essential in establishing best practices for security and compliance from the outset. The ideal candidate will have a strong...

Founding Engineer at Asymmetric Security

Added 16/06/2026

We are seeking a talented and innovative Founding Engineer to join our dynamic team. In this pivotal role, you will be responsible for designing and implementing cutting-edge security solutions that address the evolving challenges in the cybersecurity landscape. You will collaborate with cross-functional teams to develop software architecture and drive the product development lifecycle from concept to deployment. Your ability to identify potential security vulnerabilities and design robust systems will be crucial in ensuring the integrity and confidentiality of our products. The ideal candidate will have a strong background in software engineering, with expertise in secure coding practices and familiarity...

Lead Security - Full-Stack Software Engineer

Added 01/06/2026

We are seeking a Lead Security - Full-Stack Software Engineer to join our dynamic team, focusing on developing secure and scalable software solutions. In this role, you will be responsible for designing, implementing, and maintaining high-quality applications while ensuring the highest security standards are met. You will collaborate with cross-functional teams to identify potential vulnerabilities, conduct security assessments, and integrate security best practices into the software development lifecycle. Your expertise will guide the team in making informed decisions regarding security architecture and technologies. The ideal candidate will possess a strong background in both front-end and back-end development, with proficiency in...

GTM Engineer (Cybersecurity Startup)

Added 22/06/2026

We are seeking a proactive and detail-oriented GTM Engineer to join a dynamic cybersecurity startup. In this role, you will be responsible for developing and executing go-to-market strategies for our innovative cybersecurity solutions. Your primary duties will include collaborating with cross-functional teams to understand product features, market needs, and customer requirements. You will also play a key role in designing technical documentation and conducting product training for sales and marketing teams, ensuring they have the necessary tools to effectively promote our offerings. The ideal candidate will have a strong technical background in cybersecurity, along with experience in product management or...

Technical Support Engineer for Cybersecurity Startup

Added 16/06/2026

We are seeking a highly motivated Technical Support Engineer to join a dynamic team within an innovative cybersecurity startup. In this role, you will play a critical part in ensuring customer satisfaction by providing exceptional technical support for our cybersecurity solutions. Your primary responsibilities will include troubleshooting and resolving customer issues, assisting clients with product installations, and offering guidance on best practices to enhance their cybersecurity posture. You will also collaborate closely with the engineering team to escalate complex issues and contribute to product improvement initiatives. The ideal candidate will possess a strong understanding of networking, security protocols, and various...

Cybersecurity Engineer

Added 08/07/2026

We are seeking a skilled Cybersecurity Engineer to join our dynamic team. In this role, you will be responsible for designing, implementing, and maintaining security systems to protect our organization's digital assets. You will conduct risk assessments, vulnerability testing, and security audits to identify and mitigate potential threats. Collaborating with IT and software development teams, you will ensure that security measures are integrated into all phases of the software development lifecycle, promoting a culture of security awareness across the organization. The ideal candidate will have a strong understanding of firewalls, intrusion detection systems, and encryption technologies. You will also develop...

Cybersecurity Engineer

Added 07/07/2026

We are seeking a skilled Cybersecurity Engineer to join our dynamic team, responsible for safeguarding our organizational information systems against cybersecurity threats. In this role, you will design, implement, and maintain security protocols and policies to ensure the integrity and confidentiality of sensitive data. You will conduct regular security assessments, vulnerability analyses, and risk management activities to identify potential threats and mitigate risks. Your expertise will help in the development of incident response strategies and ensure compliance with industry regulations and standards. Key responsibilities include monitoring network traffic for suspicious activity, responding to security incidents, and collaborating with cross-functional teams...