Full Stack Web Developer (Frontend / Backend)

About Largo At Largo, we provide the entertainment and advertising worlds with data-driven insights powered by our proprietary AI workflows, models, and audience data. A standout feature of our methodology is the use of simulated focus groups, which deploy "digital twins" of real consumers to predict audience sentiment, purchase interest, and emotional response at a fraction of the time and cost of traditional testing. Today, the Largo platform supports hundreds of clients globally—helping independent producers, major studios, networks, and brands optimize their creative content and projects while significantly reducing financial risk. We are growing rapidly and looking for a talented Full Stack Web Developer in our Lausanne office to help build and scale the user-facing platforms and backend systems that power these groundbreaking AI insights. What You Will Do Build Next-Gen Dashboards: Design and develop intuitive, high-performance web interfaces that make complex AI insights, digital twin simulations, and predictive analytics easy for clients to interpret.Backend Architecture: Develop scalable backend APIs and microservices to handle large-scale audience datasets, consumer simulation models, and media files.Bridge AI and UX: Work directly with our Data Science and AI engineering teams to integrate proprietary AI workflows into seamless client-facing features.Ensure Performance & Scalability: Optimize web applications for fast data visualizations, low latency, and rock-solid stability.Full Lifecycle Ownership: Participate in code reviews, technical architecture decisions, automated testing, and deployment pipelines. What We Are Looking For 3+ years of professional experience in full-stack web development.Frontend Core: Strong mastery of JavaScript/TypeScript and modern frameworks (React, Vue.js, or similar).Data Visualization: Hands-on experience with charting and visualization libraries (e.g., D3.js, Chart.js, Recharts) to display complex data trends visually.Backend Core: Proficiency in building scalable APIs using Python (FastAPI, Django, or Flask) or Node.js.Database Management: Deep understanding of relational databases (PostgreSQL) and key-value/NoSQL stores.DevOps Basics: Familiarity with Docker, containerized deployments, and cloud environments (AWS or GCP).Mindset: Strong product sense, curiosity about emerging technologies, and high attention to detail for seamless user experience.👉 Apply now by sending your CV and a link to your GitHub, portfolio, or recent projects directly on LinkedIn!