Vitalii S.

📣 Hello, and welcome! I'm a Senior Software developer with 6 years of commercial experience in Java, Springboot, React, Next.js, React Native, Node.js, Nest.js, and Express.js. I'm oriented on results, motivated, and responsible developer with good analytical skills and attention to detail. I'm well-versed in software development, data structures, algorithms, and object-oriented design principles. I'm skilled in utilizing various tools and technologies. Quick learner. Also, I am an active team player who wants to deliver high-quality work and continue expanding my knowledge and skills in software development. I would be happy to work with E-commerce, Fintech, HealthTech, Blockchain, EdTech, PropTech, CRM, TravelTech, InsurTech, LogistecsTech, and Gambling projects. 📌WHAT I'M OFFER: 💻WEB DEVELOPMENT I'm delivering high-performance, responsive web applications. I specialize in building modern front-end interfaces using React.js and Next.js while handling robust backend systems with Node.js, Express.js, and Nest.js. Full-stack capabilities allow me to craft seamless, end-to-end solutions, from user interfaces to database management. 💻 API DEVELOPMENT & INTEGRATION Design and develop custom RESTful APIs and GraphQL endpoints to connect applications. I integrate third-party services like Stripe, Twilio, Google Maps API, and more, ensuring seamless communication between platforms. I also implement secure authentication and authorization systems using JWT, OAuth, or custom protocols. 💻 ENTERPRISE SOLUTIONS (JAVA) I'm building scalable enterprise applications with Spring Boot or lightweight FastAPI solutions for startups. Develop and deploy microservices architectures, automate workflows, and integrate powerful tools like Kafka and RabbitMQ for real-time processing. 💻 REAL-TIME & eCommerce SOLUTIONS I'm developing real-time applications such as chat apps, live notifications, and streaming platforms using WebSockets. Build custom eCommerce platforms with payment integrations like Stripe, PayPal, and others, providing features like cart management, inventory tracking, and order processing. 💻 CLOUD & DevOps I'm deploying and managing scalable applications on cloud platforms like AWS, Google Cloud, Azure, Heroku, and Vercel. I handle CI/CD pipelines for automated testing and deployment, leveraging Docker and Kubernetes for containerized environments. 💻 DATA-DRIVEN APPLICATIONS I'm creating interactive data dashboards using React tools. I automate data pipelines and web scraping tasks with pandas, NumPy, Scrapy, and Selenium. I also integrate machine learning models into applications for advanced analytics and predictions. 📌 My Javascript Front-end skills: Javascript, Typescript, React.js, Next.js, React Native (CLI/Expo), TailwindCSS, Material UI, Ant Design, SCSS, HTML5, CSS3, Redux Thunk, Redux Saga, Chakra UI, Bootstrap. 📌 My Javascript Back-end skills: Node.js, Nest.js, Express.js, Jest, Fastify, GraphQL, Docker. 📌 My Java skills: Java21, Spring (Boot, Core, MVC, Security, Data, Cloud, Javamail), Concurrency, SOLID, OOP, JakartaEE, JSP, Tomcat, Thymeleaf, JUnit, Mockito, Maven, Gradle. Docker, Lombok 📌 My Database skills: Hibernate, JDBC, Liquibase, SQL, NoSQL, PostgreSQL, MySQL, Objection, Knex, Prisma, MongoDB. 📌Other skills: Stripe, Firebase, Mapbox, GoogleMap, Google Analytics, Google Cloud, KuCoin API, OAuth2, WordPress, AWS. 📌API Tools: Swagger, Postman 📌KEYWORDS: JavaScript, Firebase, Vue.js, Angular, Svelte, D3.js, Chart.js, Three.js, PostgreSQL, React.js, Python, Spring Boot, Docker, Redis, Google Analytics, Kubernetes, Next.js, NumPy, Tailwind CSS, Google Maps API, TensorFlow, AWS S3, JPA, Redux, Material-UI, Selenium, MongoDB, Django, Stripe, Node.js, Jupyter Notebooks, OpenCV, Vercel, Cloudflare, React Native, Celery, ElasticSearch, Hibernate, Express.js, PyTorch, Twilio, Nest.js, pandas, RabbitMQ, Spring Framework, Pipedrive, Google Cloud, GraphQL, scikit-learn, MUI, Azure Functions, Jenkins, Ansible, RESTful APIs, Heroku, Kafka, JSP, OpenAPI, FastAPI, Bitbucket, Gradle, Tomcat, SendGrid, Chakra UI, WebSockets, Java EE, Apache Spark, Servlets, Storybook, Maven, JUnit, SQLite, Scrapy, SQLAlchemy, Apache Kafka, PayPal, Azure DevOps, Microservices, Terraform, Electron.js, Webpack, Babel, ESLint, Vite, Jest, Cypress, Puppeteer, Mocha, Jasmine, Lodash, RxJS, Immutable.js.