Founding Full Stack Engineer (React/Java)

Berlin • Cybersecurity & AI Startup • Recently Funded

A newly funded cybersecurity startup in Berlin is looking for a Fullstack Engineer(React/Java) to join as a founding team member and help design the core security, identity, and enforcement foundations of a next-generation AI-powered security risk management platform.

We are an early-stage startup founded by experienced cybersecurity leaders with backgrounds in Israeli Intelligence units. We are looking for a hands-on Founding Fullstack Engineer(React/Java) for a hybrid role based in central of Berlin. If you are passionate about cybersecurity and AI tech, thrive in fast-paced startup environments, and enjoy building complex platforms from the ground up, this is an opportunity to make a real impact.

We’re building a next-generation cyber risk platform that helps enterprises understand, measure, and reduce identity risk at scale. Our goal is to turn complex identity and security data into clear, actionable risk insights that CISOs and CTOs can trust. You will work from scratch on core platform components from day one, shaping how modern enterprises manage and reason about risk using cloud-native systems and AI-driven analysis and automated enforcement through AI Agents.

Key Responsibilities

• Develop and maintain frontend applications using React and Typescript

• Develop and maintain backend applications using Java

• Design and optimize cloud-based solutions using AWS services (EC2, Lambda, S3, SQS, SNS, etc.)

• Design, use and manage databases, including PostgreSQL, Neo4J, Redis, and Elasticsearch

• Develop, manage, and optimize containerized applications using Docker

• Automate processes using Bash/Python scripting

• Optimize and maintain RESTful APIs, ensuring security and performance

• Work closely with frontend/backend engineers, DevOps, and product team to deliver robust applications

• Monitor, debug, and improve backend performance, reliability, and scalability

• Implement caching, messaging queues, and event-driven architectures where needed

• Build whole platform from scratch

Must have skills

• 10+ years of software Development experience

• 7+ years of React, Redux and Typescript experience

• 7+ years of Java experience

• 7+ years of experience with Spring Boot

• Knowledge of Tailwind CSS and Webpack

• Hands-on coding mentality; can build things from scratch and familiar with different architectures

• Hands-on experience with Docker, Kubernetes (EKS) and containerized workloads

• Experience designing RESTful, ensuring security and performance

• Python

• Familiarity with GoLang

• Familiarity with data visualization libraries (ECharts, Recharts, Chart.js, or D3.js)

• Experience with security architecture, identity security, or security engineering

• Familiarity with compliance frameworks (NIS2, DORA, ISO 27001, SOC 2)

• Experience with AWS in production environments

• Exposure to graph-based modeling (identity graph, access graph, risk graph)