Senior Full Stack Engineer - Typescript

Senior Fullstack Software Engineer (Node.js, React, TypeScript)Location: Remote (EU)Company: Series B AI Company, BerlinType: Full-timeAbout the CompanyWe are a Berlin-based, Series B AI company building advanced products powered by cutting-edge machine learning. With strong backing and rapid growth, we are scaling both our platform and our team to bring AI into real-world, high-impact use cases.Our engineering culture is deeply technical, pragmatic, and product-focused. We care about building systems that are not only intelligent, but also reliable, scalable, and well-designed.The RoleWe are hiring a Senior Fullstack Engineer to help scale our core product and infrastructure. You will work across the stack using Node.js, React, and TypeScript, owning features end-to-end and contributing to key architectural decisions.This role sits at the intersection of product and platform, turning complex AI capabilities into seamless user experiences.What You’ll DoBuild and scale end-to-end product features across frontend and backendDesign robust APIs and services in Node.js and TypeScriptDevelop high-quality React applications with a focus on performance and usabilityCollaborate closely with ML engineers to productionize AI modelsDrive architectural decisions as the system scales post-Series BImprove engineering standards across testing, observability, and developer experienceMentor engineers and contribute to a high-performance engineering cultureWhat We’re Looking ForStrong production experience with Node.js, TypeScript, and modern ReactExperience designing scalable systems in a growth-stage environmentSolid grounding in system design, data structures, and engineering fundamentalsAbility to operate with ownership in a fast-scaling companyStrong collaboration skills across product, design, and ML teamsNice to HaveExperience with AI/ML-powered products or data-intensive systemsFamiliarity with cloud platforms (AWS, GCP)Experience in event-driven or distributed architecturesBackground in scaling systems post-Series A or BWhat We OfferRemote-first within the EUCompetitive salary and meaningful equityOpportunity to shape the technical direction of a scaling Series B companyHigh ownership and autonomyA small, senior, highly technical team