Frontend Developer Mid or Senior

Who we are - and why you might want to join us?We’re a software development company based in Kraków, working with international clients from industries like foodtech, construction, fintech, real estate, or healthcare. Over the last 15+ years, we’ve delivered 150+ digital products - from web and mobile apps to complex platforms and MVPs.We work in small, cross-functional teams, combining business and tech expertise. Some of us have been here for 5, 8, even 13 years - and we’re still growingWhat connects us? A pragmatic approach to software development, a curiosity for new technologies, and a culture of collaboration. We value autonomy, clear communication, and doing things the right way. Looking for a place where you can grow, have a real impact, and enjoy what you do? Join us and be the architect of our success stories FRONTEND DEVELOPER (React, Zustand & Mapping Applications)MID OR SENIOR[100% Remote]Role dedicated to a long-term project for our European client (construction industry)About the Role:Join us as a Frontend Developer to build dynamic, map-based web applications. We are looking for someone who combines engineering expertise with a sharp eye for detail and UI stability. You should feel at home with React and TypeScript and be ready to immerse yourself in our current codebase, ensuring that new features align perfectly with our established architectural standards.Key Responsibilities:Developing and maintaining advanced interactive maps using Leaflet and rendering complex spatial data sets (GeoJSON)Managing application state using Zustand, with a particular focus on ensuring smooth performance when handling large datasetsEnsuring visual consistency of the user interface and an intuitive user experience, in alignment with the project's design standardsWriting clean, strongly typed code in TypeScript and creating tests for key functionalities and business logicEngaging deeply with the existing codebase, adhering to established design patterns, and ensuring the scalability and maintainability of implemented solutionsKey Qualifications:React & TypeScript Proficiency – Solid background in building modern web applications using React within a strict TypeScript environmentInteractive Mapping – Hands-on experience with Leaflet for creating interactive maps and visualising spatial dataState Management – Competence in using Zustand for efficient and scalable state handlingGeospatial Data – Experience processing and rendering GeoJSON or similar spatial data formatsTesting Practices – Ability to write effective tests for core logic and utility functions to ensure code reliabilityAttention to Detail UI – A strong focus on delivering consistent, polished, and intuitive user interfacesProject Adaptability – Ability to work effectively within an established codebase, respecting existing patterns and coding standardsEnglish proficiency (min. C1) allowing for seamless technical communication Why Join Railwaymen? Real impact on projects and processes26 Paid days offLong-term cooperationRemote workCollaboration with an international teamSound like something for you? Send us your CV-- we’re excited to meet youWhat’s next?Initial Call: If your profile aligns with our needs, we’ll invite you for an online call.Tech Check: We’ll invite selected candidates for a technical interview to assess specialist knowledge.Client Interview: You’ll meet the Client’s team for a deep-dive technical discussion.Practical Task & Review: You’ll be asked to solve a coding challenge, followed by a walkthrough to discuss your approach and reasoningOffer: If everything clicks, we’ll send you a complete offer with all the details.Welcome aboard*Note: Depending on the specific case, an extra step might be added to the process.Still scrolling? Maybe that’s a sign We're waiting for youYour next adventure starts here