Founding Full Stack Engineer(React/Java)

<p style=";"><strong><span style="color: #121317">Berlin • Cybersecurity &amp; AI Startup • Recently Funded</span></strong></p><p style=";"><span style="color: #121317">A newly funded cybersecurity startup in Berlin is looking for a </span><strong><span style="color: #121317">Fullstack Engineer(React/Java) </span></strong><span style="color: #121317">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.</span></p><p style=";"><span style="color: #121317">We are an early-stage startup founded by experienced cybersecurity leaders with backgrounds in Israeli Intelligence units. We are looking for a hands-on </span><strong><span style="color: #121317">Founding Fullstack Engineer(React/Java)</span></strong><span style="color: #121317"> 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.</span></p><p><span style="color: #121317">They’re building a next-generation cyber risk platform that helps enterprises understand, measure, and reduce identity risk at scale. Their 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, AI-driven analysis, and automated enforcement through AI agents.<br /></span></p><p><strong><span style="color: #121317">Key Responsibilities</span></strong></p><ul><li><p><span style="color: #121317"><span style="">Develop and maintain </span></span><strong><span style="color: #121317"><span style="">frontend applications</span></span></strong><span style="color: #121317"><span style=""> using React and Typescript</span></span></p></li><li><p><span style="color: #121317"><span style="">Develop and maintain </span></span><strong><span style="color: #121317"><span style="">backend applications</span></span></strong><span style="color: #121317"><span style=""> using Java</span></span></p></li><li><p><span style="color: #121317"><span style="">Design and optimize cloud-based solutions using </span></span><strong><span style="color: #121317"><span style="">AWS services</span></span></strong><span style="color: #121317"><span style=""> (EC2, Lambda, S3, SQS, SNS, etc.)</span></span></p></li><li><p><span style="color: #121317"><span style="">Design, use and manage </span></span><strong><span style="color: #121317"><span style="">databases</span></span></strong><span style="color: #121317"><span style="">, including PostgreSQL, Neo4J, Redis, and Elasticsearch</span></span></p></li><li><p><span style="color: #121317"><span style="">Develop, manage, and optimize </span></span><strong><span style="color: #121317"><span style="">containerized applications</span></span></strong><span style="color: #121317"><span style=""> using Docker</span></span></p></li><li><p><strong><span style="color: #121317"><span style="">Automate processes</span></span></strong><span style="color: #121317"><span style=""> using Bash/Python scripting</span></span></p></li><li><p><span style="color: #121317"><span style="">Optimize and maintain </span></span><strong><span style="color: #121317"><span style="">RESTful APIs</span></span></strong><span style="color: #121317"><span style="">, ensuring security and performance</span></span></p></li><li><p><strong><span style="color: #121317"><span style="">Work closely with frontend/backend engineers, DevOps, and product team</span></span></strong><span style="color: #121317"><span style=""> to deliver robust applications</span></span></p></li><li><p><span style="color: #121317"><span style="">Monitor, debug, and improve backend performance, reliability, and scalability</span></span></p></li><li><p><span style="color: #121317"><span style="">Implement </span></span><strong><span style="color: #121317"><span style="">caching, messaging queues, and event-driven architectures</span></span></strong><span style="color: #121317"><span style=""> where needed</span></span></p></li><li><p><span style="color: #121317">Build whole platform </span><strong><span style="color: #121317">from scratch</span></strong></p></li></ul><br /><br /><p style=";"><strong><span style="color: #121317">Must have skills</span></strong></p><ul><li><p><strong><span style="color: #121317">10+ years </span></strong><span style="color: #121317">of</span><strong><span style="color: #121317"> software Development </span></strong><span style="color: #121317">experience</span></p></li><li><p><strong><span style="color: #121317">7+ years </span></strong><span style="color: #121317">of</span><strong><span style="color: #121317"> React, Redux and Typescript </span></strong><span style="color: #121317">experience</span></p></li><li><p><strong><span style="color: #121317">7+ years </span></strong><span style="color: #121317">of</span><strong><span style="color: #121317"> Java </span></strong><span style="color: #121317">experience</span></p></li><li><p><strong><span style="color: #121317">7+ years</span></strong><span style="color: #121317"> of experience with Spring Boot</span></p></li><li><p><span style="color: #121317">Knowledge of </span><strong><span style="color: #121317">Tailwind CSS and Webpack</span></strong></p></li><li><p><span style="color: #121317">Hands-on coding mentality; </span><strong><span style="color: #121317">can build things from scratch and familiar with different architectures</span></strong></p></li><li><p><span style="color: #121317">Hands-on experience with </span><strong><span style="color: #121317">Docker, Kubernetes</span></strong><span style="color: #121317"> (EKS) and containerized workloads</span></p></li><li><p><span style="color: #121317"><span style="">Experience designing </span></span><strong><span style="color: #121317"><span style="">RESTful</span></span></strong><span style="color: #121317"><span style=""> and </span></span><strong><span style="color: #121317"><span style="">gRPC</span></span></strong><span style="color: #121317"><span style=""> APIs</span></span></p></li><li><p><span style="color: #121317"><span style="">Hands-on experience with messaging systems (e.g., </span></span><strong><span style="color: #121317"><span style="">SQS</span></span></strong><span style="color: #121317"><span style="">, </span></span><strong><span style="color: #121317"><span style="">Kafka</span></span></strong><span style="color: #121317"><span style="">)</span></span></p></li><li><p><span style="color: #121317">Experience with </span><strong><span style="color: #121317">CI/CD pipelines</span></strong><span style="color: #121317"> (GitHub Actions or similar)</span></p></li><li><p><span style="color: #121317">Experience operating </span><strong><span style="color: #121317">PostgreSQL (RDS / Aurora), Neo4J(or similar)</span></strong></p></li><li><p><span style="color: #121317">Experience with </span><strong><span style="color: #121317">AI agents</span></strong><span style="color: #121317">, LLM-based systems, MCP, RAG, Prompts, Embeddings, Vector, etc</span></p></li><li><p><span style="color: #121317">Experience with </span><strong><span style="color: #121317">AI stack</span></strong><span style="color: #121317">(AWS Bedrock, LangChain, pgvector or similar)</span></p></li><li><p><span style="color: #121317">Experience with </span><strong><span style="color: #121317">Infrastructure as Code</span></strong><span style="color: #121317"> (Terraform)</span></p></li><li><p><span style="color: #121317">Experience with </span><strong><span style="color: #121317">monitoring, logging, observability</span></strong><span style="color: #121317"> (Grafana, OpenTelemetry, Prometheus)</span></p></li><li><p><span style="color: #121317">Ability to </span><strong><span style="color: #121317">troubleshoot</span></strong><span style="color: #121317"> production issues end to end</span></p></li><li><p><span style="color: #121317">Experience with </span><strong><span style="color: #121317">Coding CoPilots</span></strong><span style="color: #121317">(Claude Code, GitHub Copilot, AWS CodeWhisperer, Codex, etc.)</span></p></li><li><p><span style="color: #121317">Experience supporting </span><strong><span style="color: #121317">production SaaS platforms</span></strong></p></li><li><p><span style="color: #121317">Strong understanding of </span><strong><span style="color: #121317">SaaS integrations</span></strong><span style="color: #121317"> and app-to-app permission flows</span></p></li><li><p><span style="color: #121317">High ownership mentality, startup mindset, and ability to move quickly</span></p></li><li><p><span style="color: #121317">Experience in </span><strong><span style="color: #121317">startup or scale-up environments</span></strong></p></li><li><p><span style="color: #121317">Low ego, high commitment, and a </span><strong><span style="color: #121317">true tech startup mentality</span></strong></p></li><li><p><span style="color: #121317"><span style="">Strong </span></span><strong><span style="color: #121317"><span style="">problem-solving skills</span></span></strong><span style="color: #121317"><span style=""> and ability to work in a collaborative environment</span></span></p></li><li><p><span style="color: #121317">Excellent </span><strong><span style="color: #121317">English</span></strong><span style="color: #121317"> communication skills</span></p></li></ul><p style=";;"></p><p style=";"><strong><span style="color: #121317">Nice-to-have requirements</span></strong></p><ul><li><p><span style="color: #121317">Ability to code in </span><strong><span style="color: #121317">Python</span></strong></p></li><li><p><span style="color: #121317">Experience with </span><strong><span style="color: #121317">GoLang</span></strong></p></li><li><p><span style="color: #121317">Familiarity with </span><strong><span style="color: #121317">data visualization libraries</span></strong><span style="color: #121317"> (ECharts, Recharts, </span><a rel="noopener" target="_blank" href="http://chart.js/"><span style="color: #121317">Chart.js</span></a><span style="color: #121317">, or </span><a rel="noopener" target="_blank" href="http://d3.js/"><span style="color: #121317">D3.js</span></a><span style="color: #121317">)</span></p></li></ul><ul><li><p><span style="color: #121317">Experience with security architecture, identity security, or </span><strong><span style="color: #121317">security engineering</span></strong></p></li><li><p><span style="color: #121317">Familiarity with </span><strong><span style="color: #121317">compliance frameworks</span></strong><span style="color: #121317"> (NIS2, DORA, ISO 27001, SOC 2)</span></p></li><li><p><span style="color: #121317">Experience with </span><strong><span style="color: #121317">AWS</span></strong><span style="color: #121317"> in production environments</span></p></li><li><p><span style="color: #121317">Exposure to </span><strong><span style="color: #121317">graph-based modeling</span></strong><span style="color: #121317"> (identity graph, access graph, risk graph)</span></p></li></ul><ul><li><p><span style="color: #121317">Familiarity with </span><strong><span style="color: #121317">compliance frameworks</span></strong><span style="color: #121317"> (NIS2, DORA, ISO 27001, SOC 2)</span></p></li><li><p><span style="color: #121317">Understanding of </span><strong><span style="color: #121317">OAuth/OIDC, API tokens, IdP, scopes, SSO, SCIM, roles, RBAC/ABAC, service accounts</span></strong></p></li><li><p><span style="color: #121317">Familiarity with cloud identity and security controls (e.g. </span><strong><span style="color: #121317">IAM, CloudTrail, Azure Active Directory / Entra ID</span></strong><span style="color: #121317">)</span></p></li><li><p><span style="color: #121317">Hands-on with SIEM platforms such as </span><strong><span style="color: #121317">Splunk, Microsoft Sentinel, or IBM QRadar</span></strong></p></li><li><p><span style="color: #121317">Experience designing </span><strong><span style="color: #121317">permission models, identity graphs, or access control frameworks</span></strong></p></li><li><p><span style="color: #121317">Knowledge of tokenization, </span><strong><span style="color: #121317">Zero Trust principles</span></strong><span style="color: #121317">, least privilege, and continuous verification</span></p></li><li><p><span style="color: #121317">Experience with Security related to </span><strong><span style="color: #121317">AI/LLM systems, agent logic, or willingness to learn fast</span></strong></p></li><li><p><span style="color: #121317">Familiarity with </span><strong><span style="color: #121317">AI agent behavior</span></strong><span style="color: #121317">, LLM security, or agent sandboxing</span></p></li><li><p><span style="color: #121317">Previous experience in </span><strong><span style="color: #121317">cybersecurity</span></strong><span style="color: #121317">, identity startups</span></p></li><li><p><span style="color: #121317">You are a fan of </span><strong><span style="color: #121317">rock or metal</span></strong><span style="color: #121317"> music</span></p></li><li><p><span style="color: #121317">Excellent </span><strong><span style="color: #121317">German</span></strong><span style="color: #121317"> communication skills</span></p></li></ul><p style=";;"></p><p style=";;"></p><p style=";"><strong><span style="color: #121317">Benefits</span></strong></p><ul><li><p><strong><span style="color: #121317">Founding Team Member Equity</span></strong><span style="color: #121317"> — ESOPs in a cybersecurity company</span></p></li><li><p><strong><span style="color: #121317">Competitive Compensation</span></strong><span style="color: #121317"> — salary aligned with market, flexible early-stage arrangements possible</span></p></li><li><p><strong><span style="color: #121317">Founding Team Member Status</span></strong><span style="color: #121317"> — shape the company from day one and own critical technical decisions</span></p></li><li><p><strong><span style="color: #121317">Fresh Funding Secured</span></strong><span style="color: #121317"> — immediate runway to build, hire, and execute fast</span></p></li><li><p><strong><span style="color: #121317">Security Contribution</span></strong><span style="color: #121317"> — contribute to security architecture across identity, AI agents, and enforcement</span></p></li><li><p><strong><span style="color: #121317">High Autonomy</span></strong><span style="color: #121317"> — freedom to design and build without corporate overhead</span></p></li><li><p><strong><span style="color: #121317">Work with a Technical CEO and CPTO</span></strong><span style="color: #121317"> — fast iteration, strong alignment, clear direction</span></p></li><li><p><strong><span style="color: #121317">Cutting-Edge Domain</span></strong><span style="color: #121317"> — identity security, SaaS-to-SaaS access, AI agent governance</span></p></li><li><p><strong><span style="color: #121317">Massive Learning Curve</span></strong><span style="color: #121317"> — quickly gain depth in cybersecurity, identity, and AI systems</span></p></li><li><p><strong><span style="color: #121317">Fast Career Path</span></strong><span style="color: #121317"> — opportunity evolve into leadership as we scale the engineering team</span></p></li><li><p><strong><span style="color: #121317">Berlin Location</span></strong><span style="color: #121317"> — top-tier tech environment with strong cybersecurity and AI ecosystems</span></p></li><li><p><strong><span style="color: #121317">Direct Impact</span></strong><span style="color: #121317"> — your architecture and code become the foundation of the entire platform</span></p></li><li><p><strong><span style="color: #121317">Best Equipment and Tools</span></strong><span style="color: #121317"> - High quality equipment and modern tools to help you do your best work from day one</span></p></li><li><p><strong><span style="color: #121317">Team Offsites - </span></strong><span style="color: #121317">Regular team offsites designed to build strong connections, alignment, and shared momentum</span></p></li></ul><p style=";"></p><p>Find more <a href="https://www.arbeitnow.com/english-speaking-jobs">English Speaking Jobs in Germany</a> on Arbeitnow</a>