Stefan D.

With a proven process and commitment to quality code, I build stable, scalable web, mobile and infrastructural applications using state of the art technologies, such as React, Angular, Vue, JAMstack, Node.js, GraphQL, Microservices, Serverless, and more. I am using both cloud based and dedicated infrastructure, depending on the needs of the particular problem. In order to provide my clients with reliable predictable results, I have adopted a well-defined, clear, and efficient workflow that includes technical specifications for each task, estimations, code reviews, as well as manual and automated testing. I use agile workflow, based on Scrum. I use Continuous Integration and follow the git-flow approach in order to manage my repositories. Great customer satisfaction, on-time delivery and high quality service will be guaranteed. 1): JavaScript Web/Mobile Development with JAMstack/React/Angular/Vue ▬ Extensively experienced in JAMstack/PWA development ✔ Gatsby/Next.js/React/Markdown/MDX ✔ Nuxt/Vue ✔ Jekyll/Hugo ✔ Styled-components, Tailwind, Bulma ✔ PWA: Service worker, Background Sync, Web Push, Application Manifest, Geolocation API, Media API, Responsive design ▬ Familiar with ES6+/TypeScript ▬ Experienced with any modern client-oriented JavaScript frameworks or libraries ✔ React, Angular, Vue, Ember, RxJS ▬ Aware of state management patterns and solutions ✔ React Hooks, Redux, Ngrx, Vuex ▬ Experienced with esting mothodologies dedicated to the front-end world ✔ JS unit test with Jest/Enzyme, E2E test with Cypress ▬ Experienced in JavaScript/Dart-based mobile development ✔ React Native, NativeScript, Flutter 2): Headless CMS/Microservices/Serverless/GraphQL/REST API Development ▬ Headless CMS ✔ Strapi, Ghost, GraphCMS, Contentful, Netlify CMS, headless WordPress ▬ Microservices/Serverless ✔ AWS Lambda, Azure Functions, Google Cloud Functions, Firebase, MongoDB Stitch, Auth0 ▬ GraphQL ✔ Graphcool, Prisma, Apollo Server, AWS AppSync, Hasura ▬ Search as a Service ✔ Elasticsearch, Algolia ▬ Databases ✔ MongoDB, AWS DynamoDB, PostgreSQL, MySQL, AWS RDS, Neo4j ▬ REST API development ✔ Node.js: Express, Koa, Nest, [login to view URL] ✔ Ruby: Ruby on Rails ✔ Python: Django(Django REST Framework/Tastypie), Flask, django CMS ✔ PHP: Laravel, Yii, Symfony Big+: Cloud, Continuous Delivery, Container virtualization ▬ AWS, Azure, GCP ▬ Docker, Kubernetes, CI/CD Pipeline