Kevin K.
Poland
100% Job Success
Top Rated Plus
Ranked top 3% of all Upwork talent

Full stack JavaScript | TypeScript developer

I am a highly experienced full-stack JavaScript/TypeScript developer with 5+ years of experience in building and deploying web applications. My expertise lies in using JavaScript, TypeScript, Node.js, React, and MongoDB to create scalable, maintainable, and performant web applications. I am passionate about creating beautiful and functional web experiences and have a solid background in web design and user experience. My Skills include: ✅ Proficient in JavaScript, TypeScript, Node.js, NestJs, ExpressJs, PostgreSQL, React, and MongoDB ✅ Strong understanding of web design and user experience ✅ Experience with responsive design and cross-browser compatibility ✅ Strong experience with Git and other development tools ✅ Strong understanding of web architecture and performance optimization ✅ Proven ability to work in a collaborative and Agile environment ✅ Experience with AWS, Azure, or other cloud services for hosting and deployment ✅ Familiarity with GraphQL and REST API ✅ Experience with various front-end libraries and frameworks (e.g. Material-UI, Bootstrap, etc) ✅ Strong debugging and troubleshooting skills Experience ✅ 5+ years of experience as a full-stack developer for a variety of projects and clients ✅ Built a real-time chat application using TypeScript, Node.js, and WebSockets ✅ Developed and deployed a scalable Web Application platform using React, Node.js, and MongoDB ✅ Implemented Authentication and Authorization using JWT and OAuth ✅ Experience working with AWS Lambda, SQS, and SNS ✅ Experience with deployment and CI/CD pipeline ✅ Experience with working in an Agile development environment. I always seek perfection in my work. I might not know everything, but I’m a fast learner, and I use my skills fully to the best I can, and I am eager to learn new technologies to assist my skills. In addition, I am flexible in working with an intercultural community. I spend most of my time every day learning and finding the best practices in programming. If you want someone passionate and honest to work on your project, don’t hesitate to contact me.
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Skills

Skills

  • Socket.io
  • Sequelize
  • Database Architecture
  • PostgreSQL
  • TypeScript
  • API Integration
  • webpack