Hire Remote Senior
Web Developers
in Romania

Andrei is a senior software developer and ex-Microsoft engineer with 10+ years of experience developing web, desktop, mobile, and blockchain apps using Ruby, C#, and Javascript. His products brought $100M+ in total revenue and are used by dozens of millions of users to this day. Being a startup founder himself, Andrei knows exactly what brands need to succeed and how to bridge the gap between business and technology. He is here to help companies grow using the right software and tools.

WebRuby on RailsRubyDjangoLaravelExpress.jsC#LeadershipJavaJavaScriptManagementReactAWSPythonNode.jsHTML/CSSPHPAndroidC++SQLMySQLAngularWordPressJSONDatabaseAPIGoogle MapsPostgreSQLAzureGoogle AnalyticsAutomationMigrationAndroid StudioTypeScriptJiraPayment gatewayFirebaseStripeFront-EndUI designAlgorithmLanding pagesDockerPython 3Google Cloud PlatformBack-EndCQRSRustKubernetesReact NativeBlockchainEthereumGraphQLCryptocurrencyCTOPayment systemsAWS Lambda.NET CoreSolidity.NETFinTechAgileNext.jsASP.NETASP.NET Web FormsPayment processingQR CodeFigmaRESTful APINestJSOpenAIPython 2Vue.jsMarketing strategiesEcommerce support. ServerMongoDBUnit TestingTestingSeleniumGitHubAmazon EC2MapsWeb ScrapingCloudCRMTwilioSystem AdministrationStripe PaymentsOrchestrationDashboardsCode ReviewSystem designSoftware DesignContainerizationCircleciMicroservicesSoftware Quality AssuranceMVP ArchitectureEDIWeb ApplicationDocumentation ProcessSCSSVercelOOP Large ScaleSource code scanningSoftware architecturemacOSDistributed Systems DesignHerokuIntegrationFull StackDocument managementSidekiqData ScienceData VisualizationRequirements GatheringJSON APIIntegrationsData processingWindows 10Data architectureCI/CDMobile App DevelopmentAPI IntegrationAPI DocumentationSecure Code ReviewAPI IntegrationsPerformance EngineeringApi architectureB2B Product MarketingDevOpsQAB2B marketing

Hi! I’m Serge and I'm a Full Stack Developer with 8+ years of experience. I love crafting cool things for the web! Some of the technologies I've worked with: **FE Stack**: React, Next.js, TypeScript, Sass, Less, Tailwind, Chakra, CSS Modules, PostCSS, Stylus CSS, Gatsby.js, Webpack, Jest, React Testing Library **BE Stack**: Node.js, Express.js, Prisma, PostgreSQL, Passport.js, Zod, Nodemailer, AWS-SES, Ngnix **Misc/DX**: Git, Docker, WebStorm, Prettier, Husky, Lint-staged Let's connect! Drop me a message if you think my expertise aligns with your objectives. Email: [sergiu.calborean@gmail.com](mailto:sergiu.calborean@gmail.com) Skype: sergiu.calborean Telegram: @sergehere

WebExpress.jsRuby on RailsJavaScriptReactTypeScriptHTML/CSSNext.jsNode.jsMySQLGitHandlebars.jsSymfonyDockerSketchWebpackUX/UI DesignSEOResponsive DesignBrowser ExtensionsReact NativeCSS3

A Ruby on Rails engineer with over 5 years of commercial experience in web development. Have experience in usage of PostgreSQL, MySQL, React, Redis and Sidekiq. Proven track record of successfully undertaking complex back-end and front-end projects, delivering optimized, scalable, and maintainable code. Adept in performance tuning and committed to crafting robust applications that excel in efficiency and user experience.

WebRuby on RailsSQLJavaScriptPostgreSQLRedisMySQLDocker ComposeDockerAWSElasticsearchNginxRSpecResqueStimulusjsSCSSApache HTTP ServerChart.jsCoffeeScriptActive adminQR Code