Full Stack Engineer (£120k-£135k + Equity) at $2.3M seed-funded AI cybersecurity startup

Added 21/05/2026

We are seeking a talented Full Stack Engineer to join an innovative AI cybersecurity startup that has recently secured £2.3M in seed funding. In this dynamic role, you will be responsible for designing, developing, and maintaining scalable web applications that enhance our cybersecurity solutions. You will work closely with cross-functional teams to define project requirements, create technical specifications, and implement robust software features. Your expertise will be crucial in ensuring high performance, responsiveness, and security across our platforms. Additionally, you will collaborate with UX/UI designers to create user-friendly interfaces that meet our customers' needs. The ideal candidate will possess a...

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,...

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...

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...

IT & Security Associate at VC-backed autonomous manufacturing startup

Added 11/05/2026

Join a dynamic and innovative VC-backed autonomous manufacturing startup as an IT & Security Associate. In this pivotal role, you will be responsible for maintaining and enhancing our IT infrastructure and security protocols. Your primary duties will include monitoring network performance, troubleshooting hardware and software issues, and ensuring the security of sensitive data. You will collaborate with cross-functional teams to implement IT policies and procedures that align with industry standards, ensuring the highest levels of operational efficiency and data integrity. As an IT & Security Associate, you will also play a key role in conducting regular security audits, managing user...

Security GRC Manager at Humaans

Added 16/06/2026

We are seeking a dedicated Security GRC Manager to join our dynamic team, where you will play a pivotal role in ensuring our governance, risk management, and compliance framework is robust and effective. In this position, you will be responsible for developing and implementing security policies and procedures in alignment with industry standards and regulatory requirements. You will conduct regular risk assessments, identify vulnerabilities, and recommend mitigation strategies to safeguard our information assets. Collaboration with various departments is essential to ensure security practices are integrated into all business processes. In addition to policy development, you will oversee compliance audits and...

Founding Security & Compliance Engineer

Added 17/06/2026

We are seeking a Founding Security & Compliance Engineer to join our dynamic team in building robust security frameworks and compliance programs from the ground up. In this pivotal role, you will be responsible for designing, implementing, and maintaining security protocols that safeguard our infrastructure and data. You will conduct thorough risk assessments, identify vulnerabilities, and develop strategies to mitigate potential threats. Collaboration with cross-functional teams will be essential as you ensure compliance with industry standards and regulations, including GDPR, HIPAA, and PCI-DSS. Your expertise will drive the creation of security policies and procedures, while also educating team members about...

Founding Engineer | SaaS | Identity Security & Attack Simulation | Fractional to Permanent

Added 11/05/2026

We are seeking a dynamic and innovative Founding Engineer to join a pioneering SaaS company specializing in identity security and attack simulation. This role offers a unique opportunity to play a critical role in shaping the future of our platform while working alongside a team of passionate professionals. As a key member of our founding team, you will be responsible for designing, developing, and deploying robust software solutions that enhance security and mitigate risks for our clients. Your expertise will drive the architecture and engineering decisions that will define our product's success in the marketplace. The ideal candidate will possess...