Fullstack Developer

**Czym będziesz się zajmować?** **Responsibilities:** * Owning product areas end-to-end across mobile, web, backend, architecture, and delivery quality. * Building mobile-first experiences with React Native / Expo, TypeScript, NestJS, and Tailwind. * Integrating with polyglot backends (Ruby on Rails, Go, Node.js). * Collaborating across teams to ship high-quality features fast and align technical work with the roadmap. * Driving innovation and exploring new technologies – including AI-driven products like recommendations, translation, and video generation. * Driving frontend architecture and development using React, React Native, Expo, and TypeScript. * Designing scalable and high-performance solutions with a strong focus on usability and product experience. * Participating in system design discussions, architecture planning, and technical decision-making. **Kogo poszukujemy?** **Must-haves:** * Experience working within large, well-maintained codebases for 5+ years. * Strong recent hands-on React Native and TypeScript experience within the last 2-3 years. * Solid experience with Node.js. * Experience working with Expo. * Experience using AI tools pragmatically; production experience with LLMs, recommendations, or generative video. * Mobile release experience (App Store / Google Play). * Strong problem-solving, and software design skills. * Ability to independently design solutions, ask clarifying questions, and evaluate technical trade-offs. * Comfortable discussing system design, scalability, performance, infrastructure, and integrations. * Strong ownership, autonomy, and a data-driven, action-oriented mindset. * Level of English – from Upper-Intermediate and above. **Nice-to-haves:** * Product company, startup, or high-growth environment experience. * Experience mentoring junior engineers. **Czego wymagamy?** Znajomości: * React Native * Node.js Języki: * Angielski **Jakie warunki i benefity otrzymasz?** * 9.7k–15.3k PLN brutto/m (Umowa o pracę) * Umowa o pracę - Elastyczne godziny pracy (100%) * Praca zdalna: Dowolnie * Ubezpieczenie, Pakiet sportowy * Kawa / Herbata, Zimne napoje * Pokój relaksu **Kim jesteśmy?** Andersen – your global software development partner Andersen is a global software development company with over 18 years of experience supporting businesses worldwide in their digital transformation. Headquartered in Poland, we operate development centers across Germany, the USA, the UK, Lithuania, Hungary, Kazakhstan, Georgia, Azerbaijan, Cyprus, and the UAE, enabling us to deliver high-impact solutions close to our customers. We offer end-to-end IT services — from custom software development, API integration, and system architecture to legacy modernization and long-term support. With deep technical expertise and a focus on business value, we build tailored, scalable, and secure digital products. Harnessing the power of AI, Machine Learning, Data Science, Big Data, and Visual Technologies, we create intelligent, future-ready solutions that support digital transformation and solve real-world business problems. Recognized among the world’s Top 1,000 B2B service providers, Andersen has earned the trust of industry leaders. Our portfolio includes long-term partnerships with Siemens, S&P Global, Ryanair, IHS Markit, TUI, Johnson & Johnson, T-Systems, and many more. With a team of 3,700+ highly qualified experts in 16+ global locations, we have successfully delivered over 1,000 projects across industries such as Healthcare, FinTech, Logistic, Automotive, Manufacturing, E-commerce, Multimedia & Entertainment and more. Driven by responsibility, client-focus, and commitment to results, Andersen is your reliable tech partner for building high-ROI, future-proof digital solutions — anywhere in the world.