Salary: £80,000 - 100,000 per year Requirements: Strong commercial experience building web applications with React and Python Hands-on experience in an AWS Serverless setup (Lambda, API Gateway, DynamoDB, event-driven architectures) Confidence integrating external APIs, including modern LLM/AI services A product mindset: you care about usability, clarity, and shipping value Comfort working in a startup environment - ownership, pace, and ambiguity An interest in cyber security or secure software development (no need to be an AppSec specialist already) Responsibilities: Build and ship product features across the stack (UI → API → cloud) Develop back-end services in Python, delivering reliable, well-tested APIs Build responsive, intuitive front-ends in React Work within an AWS serverless environment (event-driven services, APIs, scalable data patterns) Integrate external services (including LLM APIs) to enhance workflows and automation Collaborate closely with founders and product to shape requirements and deliver fast Improve reliability, performance, monitoring, and developer experience as the product scales Technologies: AI API AWS Lambda Cloud LLM Python React Security Serverless Web UX UI Design Backend DevOps Frontend Fullstack More: We are a UK cyber security startup focused on building a platform that helps organizations detect malicious open-source code and secure their software supply chain in real-time. This remote-first role offers a salary between £80,000 and £100,000, plus an equity opportunity. You will join a small, high-output engineering team, where your work will directly shape our platform and customer experience, providing a truly impactful experience in the growing field of cyber security. last updated 8 week of 2026