> Markdown version of [/jobs/ext/1383409-full-stack-ai-engineer-all-react-nodejs](https://www.wearedevelopers.com/jobs/ext/1383409-full-stack-ai-engineer-all-react-nodejs). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack AI Engineer (all) - React / NodeJS - **Company:** XO Life - **Location:** Germany (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Artificial Intelligence, Amazon Web Services, Server Applications, Application Performance Management, User Authentication, Cascading Style Sheets (CSS), Code Review, Databases, Data Integrity, Data Migration, Monitoring of Systems, Push Technology, MongoDB, Node.Js, OAuth, Performance Tuning, Redis, Software Tools, JSON Web Token, Responsive Web Design, Session Management, Software Engineering, TypeScript, Web Services, WebSocket, Cloud Platform System, ReactJS, Express.js, Caching, Database Performance, Offline Storage, Backend, Containerization, Webpack, Material UI, Information Technology, Build Tools, Data Management, React Native, Front End Software Development, React Redux, Api Design, Restful APIs, Es2015, Multiplatform, Data Pipelines, Docker - **Published:** July 22, 2026 - **Apply:** https://www.adzuna.de/details/5727327458 ## About the Role We are seeking a versatile Full Stack AI Engineer to join our engineering team to build end-to-end solutions that power our digital health platform and help the platform to grow. This role involves designing and implementing both client-side and server-side applications, creating seamless user experiences while ensuring robust backend infrastructure., * Bachelor's degree in Computer Science, Software Engineering, or related field OR equivalent work experience with strong technical portfolio * 7+ years of full-stack product development experience * Experience with growth techniques * Experience with testing frameworks (unit, integration, end-to-end) * Experience with performance optimization and monitoring tools * Experience with mobile-first development and responsive design Frontend Technical Skills * JavaScript/TypeScript: Expert-level proficiency in modern JavaScript (ES6+) * React: Strong experience with React, hooks, context API, and state management * CSS/Styling: Proficiency in modern CSS, styled-components, or similar * Build Tools: Webpack, Vite, or similar bundling tools * Expo: Familiarity with Expo framework and development workflow * React Native: Experience building cross-platform mobile applications Backend Technical Skills * Node.js: Strong server-side JavaScript/TypeScript development * Express.js: Experience building RESTful APIs and web services * Databases: MongoDB (primary), Redis for caching * API Development: RESTful APIs * Authentication: JWT, OAuth, session management Soft Skills * Strong problem-solving and analytical abilities * Good communication and teamwork abilities * Eagerness and passion to work in agile and lean development environments * Deep product and customer-centric - always advocate for user needs and deliver delightful, impactful experiences, * Experience with healthcare or regulated industry applications * Understanding of accessibility standards * Familiarity with design systems and component libraries * Experience with mobile-specific features (push notifications, offline storage) * Knowledge of mobile performance optimization Please note that you must have the legal right to live and work in the European Union (EU). Applications from candidates residing outside the EU cannot be considered. ## Description * Implement modern UI/UX designs with attention to accessibility and performance * Integrate frontend applications with backend APIs and services * Design and implement scalable backend architectures * Optimize application performance and implement efficient state management * Develop cross-platform mobile applications using Expo and React Native * Build data processing pipelines and background jobs Engineering Tools * AI-assisted development: Ability to effectively use AI tools in daily development work Database & Data Management * Design and optimize database schemas (MongoDB, Redis) * Implement data migration strategies and ensure data integrity * Monitor and optimize database performance System Architecture & Integration * Design full-stack architectures that scale from web to mobile * Integrate third-party APIs and services * Implement real-time features using WebSockets Infrastructure & Deployment * Deploy and manage applications in cloud environments (AWS, GCP) * Implement containerization with Docker and Kubernetes * Monitor system performance and troubleshoot issues across the stack * Ensure security best practices and compliance * Build and maintain CI/CD pipelines Collaboration & Quality * Be fully responsible for the quality of the produced outcome * Work closely with product managers, designers, and other engineers * Participate in code reviews and maintain code quality standards * Write comprehensive technical documentation ## Related Videos - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Your next 10x engineer isn't in your city. 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