Senior Frontend Developer

About UsWe are an ETH Zurich spin-off with the aim of transforming transportation planning and operation through the introduction of digital twins. Transcality develops next-generation web-app solutions to streamline complex engineering and planning processes. Our digital transportation twins are offered as a self-service SaaS solution for engineering offices and public authorities in traffic and construction planning at the local, regional, and national levels. They help improve the efficiency, safety, and sustainability of our cities.We are a diverse, international team pushing the boundaries of traffic modeling: driven by ideas, open in our approach, working hand-in-hand with partners, and building smarter solutions for a greener tomorrow. Above all, we prioritize being a supportive and inspiring workplace where individuals can grow both personally and professionally.Position: (Senior) Frontend Developer Location: Germany or Switzerland (with flexible remote options)Duration: Part-time/full-timePosition OverviewWe are seeking a Frontend Developer with a passion for building geospatial and performance-driven web applications. You will be building cutting-edge tools for digital twin platforms in transportation, with a strong focus on interactive maps, traffic simulations, and urban planning applications.This role is ideal for someone who enjoys solving complex challenges in the browser, optimizing large-scale datasets, and creating intuitive user interfaces that empower our clients to shape the mobility of tomorrow.TasksBuild and maintain high-performance map interfaces using Next.js and ReactIntegrate Deckgl and MapLibre for advanced geospatial visualizationsWork with DuckDB-wasm and SQLRooms for in-browser querying of large (Geo)Parquet datasetsImplement road network editing tools Optimize performance for large transportation datasetsCollaborate with UI/UX design team to implement and maintain the intuitive designCollaborate with backend engineers to integrate REST APIs and data pipelinesWrite clean, maintainable, and well-documented codeRequirementsBring 3+ years of experience in front-end focused software development Proficiency in Next.js and modern React (hooks, state management like Zustand)Knowledge of TypeScript and scalable frontend architectureExperience with geospatial visualization (Deckgl, MapLibre, GeoParquet/GeoArrow)Strong understanding of SQL, DuckDB, and spatial queriesExperience with performance optimization for browser-based heavy data appsFamiliarity with WebGL rendering pipelines and geospatial conceptsStrong problem-solving skills and ability to work independentlyExperience with version control tools (Git) Familiarity with CI/CD pipelines (GitHub Actions)BenefitsWhy join us?We are a young and dynamic team and are passionate about impactful technology and continuous growth while valuing work-life balance, offering a workplace that’s both inspiring and rewardingWe offer competitive compensation and growth opportunitiesYou get the chance to develop cutting-edge solutions with real-world impactWe set value in on-site work but guarantee flexible work arrangementsWe make sure you get the support you need for continuous learning and professional developmentYou have the opportunity to shape our product and technological strategyWe are proud to be an equal opportunity employer, dedicated to fostering a fair and inclusive work environment. Our recruitment, advancement, and retention practices are free from discrimination, ensuring equal opportunities for all. We strongly encourage applications from individuals traditionally underrepresented in the tech industry.