Save Job Back to Search Job Description Summary Similar Jobs Added 01/05/20255 years of experience minimum as a Backend DeveloperJavaScript / Typescript / Node.jsAbout Our ClientOur client is a Tech company.Job DescriptionCreate and sustain backend systems using JavaScript and TypeScript.Tracking and tracing items using Ethereum technologyDeveloping Digital Product Passports and sustainability featuresCreating Digital Collectibles (NFTs) for various purposes such as loyalty programsBuilding applications that interact with both public and private blockchains.Ensure the code is of high quality, thoroughly tested, and adheres to industry best practices.Work closely with front-end developers, designers, project managers, and other team members to guarantee the successful completion of projects.Play a key role in adding new features to front-end codebases, making sure these features are secure and perform efficiently.Implement blockchain backend workflows that integrate with databases, Solidity smart contracts, and Web3 services.Participate in the support rotation for the applications you work on.The Successful ApplicantStrong proficiency in JavaScript/TypeScript/Node.js.At least 5 years of professional experience in software development.Extensive experience in writing and maintaining automated tests.Perfect fluency in English.Experience or skills in DevOps / Web3 / React.js is highly appreciated, but not mandatoryWhat's on OfferUltra modern Tech environmentSuper friendly team with strong human valuesCareer growth opportunities2 days or remote work per weekQuote job refJN-052025-6731822Job summaryJob FunctionInformation TechnologySpecialisationIT DevelopmentIndustryTechnology & TelecomsLocationGenevaContract TypePermanentJob ReferenceJN-052025-6731822