
Aisy is an AI-powered cybersecurity company that enhances vulnerability management through contextual intelligence. By mapping vulnerabilities against business risks, Aisy helps organizations…

Aisy is an AI-powered cybersecurity company that enhances vulnerability management through contextual intelligence. By mapping vulnerabilities against business risks, Aisy helps organizations…
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Full-Stack Engineer (~100K) - Startup - In Person In London
About Aisy
Aisy is an AI-native threat model intelligence platform that transforms complex vulnerability data into clear, attacker-driven priorities. By focusing on real risk, Aisy helps security and engineering teams concentrate their efforts where they matter most.
The platform leverages advanced AI to analyse threats at scale and deliver actionable insights. Aisy is building technology that modernises how organisations understand, prioritise, and address security vulnerabilities, creating a more efficient and effective security posture for its customers.
The Role
We're a pre-seed AI cybersecurity startup (currently a team of 3, growing to 6) looking for a Full-Stack Engineer to work directly alongside the founder.
This is a highly hands-on role where you'll take customer requests, break them down into technical components, and ship solutions quickly. One day you might be building authentication logic, the next generating synthetic data, and the next investigating a production issue.
Our stack:
This is an in-person role based in London.
What You'll Do
What We're Looking ForTechnical Excellence
We're looking for engineers with strong fundamentals across the stack. We care more about your understanding of software engineering principles than familiarity with specific frameworks.
You should be comfortable designing systems that perform reliably in production and understand how to make sound technical decisions around architecture, databases, testing, and scalability.
Strong Fit
Startup DNA
We want someone who combines the engineering discipline of larger organizations with the speed and pragmatism of an early-stage startup.
You should be comfortable operating with ambiguity, wearing multiple hats, and taking ownership from customer problem through to production deployment.
Strong Fit
Exceptional Fit
Drive & Mindset
We care deeply about motivation and curiosity.
The strongest candidates genuinely enjoy building products, solving problems, and learning new things. They're energized by difficult technical challenges and take pride in their craft.
We're looking for someone whose primary focus is building great technology and helping the company succeed.
Strong Fit
Exceptional Fit
Experience & Trajectory
We're not looking for the most experienced engineer. We're looking for someone with enough experience to have developed strong instincts while remaining adaptable, hands-on, and growth-oriented.
Variety of experience matters more than total years worked.
Strong Fit
Exceptional Fit
Why Join Aisy?
This role is ideal for an engineer who wants to build quickly, learn constantly, and have a meaningful impact on both the product and the company.