Founding Full Stack EngineerFull-timeDublin, Ireland€32,000 - €45,000 + equityAboutWe're building a plug-and-play AI personalisation engine for SMB e-commerce. The platform delivers AI-driven shopping experiences.We're early-stage, near-MVP, funded, and moving fast. As a founding engineer, you'll shape the architecture, define tech culture, and build the product powering our first customers. We embrace a San Francisco startup mindset: rapid iteration, full ownership, and building for scale.What You'll BuildAI Personalisation EngineIntegrate in-house computer vision models with third-party AI servicesBuild ML inference pipelines with auto-scaling (SageMaker/EC2)Implement real-time image and video processing at scaleMulti-Service BackendScalable APIs using Laravel GraphQL and microservicesEvent-driven architecture with AWS Lambda and SQSDatabase design with DynamoDB composite keys and S3 storage optimizationFrontend & Embeddable WidgetsAngular platform, React CRM, marketing siteTypeScript widgets with Shadow DOM isolation and React componentsReal-time WebSocket connections with JWT authentication and auto-reconnectAWS Cloud InfrastructureCDK-based infrastructure with 15+ stacksLambda, API Gateway WebSocket, CloudFront CDNAuto-scaling ML workloads and cost optimizationFull-Stack OwnershipEnd-to-end responsibility from ML model integration to deploymentPerformance optimization and cross-domain messagingPlugin architecture for merchant integrationKey ResponsibilitiesArchitect and implement scalable systems for AI personalization at scaleDeploy and optimize computer vision models and inference pipelinesBuild embeddable frontend components for merchant integrationManage AWS infrastructure, CI/CD, monitoring, and automated deploymentsDefine coding standards and development workflowsCollaborate with founders to prioritise MVP features and iterate based on customer feedbackRequired SkillsCore Development3+ years full-stack SaaS experience with modern JavaScript/TypeScriptAI/ML integration experience (PyTorch, TensorFlow, HuggingFace, or OpenAI APIs)Backend architecture experience with PHP/Laravel,, GraphQL, and REST APIsProficiency in SQL and NoSQL databases (DynamoDB preferred)Frontend ExpertiseReact, Angular, or TypeScript, Web Components, Shadow DOM, cross-domain messagingReactive programming patterns and modern state managementCloud & InfrastructureAWS: Lambda, API Gateway, S3, DynamoDB, CloudFront, SQSInfrastructure as Code: CDK, CloudFormation, or TerraformEvent-driven architecture and WebSocket systemsStartup MindsetComfortable with ambiguity and rapid iterationFull ownership of features and systemsPassion for building AI-powered SaaS for SMBsNice-to-HaveGPU optimization (CUDA, inference acceleration)Multi-tenant SaaS architectureComputer vision OpenCVPerformance optimization: caching, bundle size, CDN configurationAI & startup excitement: work with cutting-edge models, ship weekly features, solve complex full-stack challengesWhy JoinFoundational impact: architect core systems, define technical culture, influence product roadmapFounding-level compensation: equity stake with competitive base salaryDirect business impact: build features that drive customer acquisition, retention, and revenueAI & startup excitement: work with cutting-edge models, ship weekly features, solve complex full-stack challenges