Full Stack Software Engineer (Remote, Contractual) EU [WN-11]

About Smart WorkingAt Smart Working, we believe your job should not only look right on paper but also feel right every day. This isn’t just another remote opportunity - it’s about finding where you truly belong, no matter where you are. From day one, you’re welcomed into a genuine community that values your growth and well-being.Our mission is simple: to break down geographic barriers and connect skilled professionals with outstanding global teams and products for full-time, long-term roles. We help you discover meaningful work with teams that invest in your success, where you’re empowered to grow personally and professionally.Join one of the highest-rated workplaces on Glassdoor and experience what it means to thrive in a truly remote-first world.About the roleAs a Full Stack Software Engineer, you’ll play a vital role in building digital solutions that power our partners’ products. You’ll work across front-end and back-end to ensure usability, scalability, and performance, tackling technical challenges with modern tools and frameworks.This opportunity begins as a 6-month, high-impact project where you’ll deliver real value from day one. For strong performers, it’s also a pathway to a long-term contract of up to 2 years — giving you the best of both worlds: the excitement of an immediate challenge and the stability of extended career growth.You’ll thrive here if you’re passionate about high-quality applications, eager to work with cutting-edge technologies, and proactive about driving innovation in an agile, international environment.ResponsibilitiesDesign and implement scalable, performant UIs and app architectures, balancing user experience with resource constraintsDevelop across the stack with React.js, Node.js, TypeScript, and modern frameworks (Next.js, Vite)Work with SQL databases including PostgreSQL, MySQL, MSSQL, and indexing/search tools like Elastic, OpenSearch, or SolrBuild and consume APIs (REST or GraphQL), handling caching and offline support with React Query or ApolloManage application state using patterns/tools such as Redux, Context API, or ZustandEnsure quality with unit, integration, and E2E testing frameworks (Jest, Cypress, Puppeteer, Mocha)Apply microservices architecture principles and containerization with DockerBuild responsive UIs that adapt to varied devices and screen sizesCollaborate in an agile team, communicating effectively with peers and stakeholders to deliver business valueRequirements5+ years of professional experience with TypeScript/JavaScript3+ years of experience with React.js, using latest features3+ years of experience with Node.js, using latest featuresStrong experience with state management (Redux, Context API, Zustand)Proficiency with SQL databases (PostgreSQL, MySQL, MSSQL)Experience with indexing/search tools (Elastic, OpenSearch, Solr)Strong knowledge of RESTful APIs and/or GraphQL, including caching/offline via React Query or ApolloHands-on experience with Docker and microservices architectureProficiency with unit, integration, and E2E testing frameworks (Jest, Cypress, Puppeteer, Mocha)Proven ability to deliver responsive UI developmentExperience with at least one modern framework (Next.js or Vite)Nice to haveExperience with Azure services (Service Bus, Blob Storage, Table Storage, Secrets, Managed Identity)Exposure to Kubernetes & HelmFamiliarity with MongoDBSystemic framework knowledgeA strong client-oriented mindset and the ability to translate business models into technical solutionsProactive, continuous improvement approach and a passion for qualityAt Smart Working, you’ll never be just another remote hire.Be a Smart Worker — valued, empowered, and part of a culture that celebrates integrity, excellence, and ambition.If that sounds like your kind of place, we’d love to hear your story.