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Senior Fullstack Developer / DevOps Engineer (AI-First Environment)

Budget: $20.0 - $40.0 HOURLY / PART_TIME ⭐ 0.00 (0) France

node.js, react-js, api-integration, mobile-app-development, artificial-intelligence, postgresql, firebase, flutter, react-native, graphql

We’re building a consumer-facing AI product currently in stealth mode. The vision is clear, the product designs are ready, and we’re looking for a highly experienced engineer who enjoys moving fast, solving complex problems, and building alongside founders. What makes this opportunity unique: • Mobile-first product • AI-native experience • Startup environment with rapid iteration • Direct collaboration with founders • English communication required Further details will be shared under NDA. About the project This is an ambitious consumer application combining modern mobile experiences, AI-powered personalization, and real-time interactions. We’re looking for a senior engineer who can take ownership of technical execution, contribute to architecture decisions, and help transform polished product designs into a scalable production application. Responsibilities • Build and maintain a cross-platform mobile application using React Native or Flutter • Develop and integrate backend services and APIs • Implement AI-powered features using modern LLM providers • Translate high-fidelity designs into polished, production-ready interfaces • Design and maintain scalable cloud infrastructure • Contribute to technical planning and product iteration Technical Requirements Mobile Development • React Native or Flutter • Strong understanding of mobile performance and animations • Experience creating premium user experiences Backend & APIs • Node.js and/or Python • REST and GraphQL APIs • WebSocket and real-time architectures AI & Productivity Tools • Experience integrating LLM APIs • Familiarity with AI-assisted development tools such as Cursor, GitHub Copilot, Claude, or similar Cloud & Infrastructure • AWS or GCP • Docker • CI/CD pipelines • Production deployment experience What We’re Looking For • Strong problem-solving skills • Ability to work in a fast-moving startup environment • Comfortable navigating evolving priorities and product iterations • Excellent communication and ownership mindset • Proven ability to ship high-quality products efficiently Engagement Details • Remote • Long-term collaboration potential • Flexible working arrangement based on project needs and availability Nice to Have • Startup experience • Consumer mobile product experience • Recommendation systems or personalization experience • Experience scaling products from MVP to growth stage How to Apply Please send: 1. A short introduction 2. One project you’re particularly proud of 3. Your experience building AI-powered products 4. Your preferred technology stack 5. Your availability and expected rate Additional details will be shared after an initial discussion and NDA execution.
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