Full-Stack JavaScript Developer (ReactJS/NodeJS)

About Virtido Virtido is an entrepreneurial and innovative IT company headquartered in Zurich, Switzerland. We realize ideas and projects - from strategic concept to technical implementation closely alongside our dynamic clients with a strong focus on start-up or fast-growing companies. Since inception in 2015, we have grown rapidly to currently 140+ professionals in Switzerland, Poland, Ukraine and the Philippines. About Our Client Our client specializes in building modern, scalable web applications designed to deliver intuitive user experiences, robust API-driven functionality, and tailored business workflows. About This Role We are seeking a Full-Stack JavaScript Developer with robust expertise in ReactJS, Next.js and NodeJS, with a proven track record in API integrations and automation. Responsibilities Develop and maintain responsive, interactive frontends using React and TypeScript within the Next.js framework. Implement secure Backend-for-Frontend solutions using Node.js, Express, and Edge Functions to manage API orchestration and data handling. Design and integrate RESTful and GraphQL APIs, connecting to various enterprise or SaaS systems to facilitate smooth data exchange. Manage secure authentication flows including OAuth 2.0, JWT, and session-based security, ensuring robust token rotation and management. Build dynamic UI components such as forms, dashboards, configurators, and visual workflows that enhance user interaction. Handle file uploads, data validation, and structured storage through secure APIs or cloud services. Ensure the application code is high-quality, modular, and maintainable through rigorous testing, linting, and CI/CD automation processes. Collaborate with UX designers to refine user interfaces, optimize performance, and evolve component libraries. Requirements Core Technologies: Proficiency in Frontend technologies like React, Next.js, TypeScript, TailwindCSS, and associated libraries including shadcn/ui, React Hook Form, Zod, TanStack Query. Backend Experience: Solid understanding of Node.js, Express/NestJS, and Edge Functions via Vercel or Cloudflare Workers. Integration Knowledge: Expertise in REST & GraphQL APIs integration, OAuth 2.0, Webhooks, and related secure token management techniques. Auth & Security: Experience with JWT, HTTPS, CORS, API rate limiting, and other security protocols. DevOps Skills: Familiarity with GitHub Actions and Docker is beneficial. Extended Experience: Proven experience in building custom web configurators, dashboards, and complex UI components beyond typical CMS-based websites. Design System Integration: Experience with headless CMS solutions such as Storybook, Sanity, Contentful, and WordPress. Cloud and Serverless Environments: Working knowledge of cloud architecture and serverless environments enhances suitability for this role. Language: Good command of English language, as you will be working in an English-speaking environment, is a must. What we offer Opportunity to enhance your career by gaining invaluable business experience from some of the most forward-thinking professionals. Ability to work fully remote. Flexible working hours. Even though we do have certain hours 10:00 - 19:00 when your availability is desired, there's always some space for flexibility. Comfortable and friendly work environment and proactive constantly developing team. Career growth opportunities. Additional benefits may apply. Does this resonate well with you? Then we look forward to receiving your application!