✋ Hi, I am passionate Full-stack developer with expertise in Jamstack | Gatsby | NextJS | NetlifyCMS | Strapi | Sanity.io | DatoCMS | Ghost | Tailwind | Frontity | Remix | React-native | ReactJS | Graphql | HeadlessCMS | Gulp | Typescript | Html5 | CSS3 | Wordpress | Shopify | Woocommerce | any open source projects. With a keen interest in apps and a sharp eye for the latest trends, I does not let pass an opportunity to help the developer community with articles and tips on honing the craft. Over 9 years of IT experience which includes 3+ years of Experience as a UI/UX Designer and 6 years of Experience as Front End Developer. Over the last 3 years, I help agencies and companies with modern web development (JAMstack) tools. This includes web development using Static Site Generators, Headless CMS, Mobile Development. My first priority to provide a 100% satisfaction to my client and good quality work. ✔ Front-end - React, NextJs, Gatsby( My Favorite ), Remix, Hugo, Ghost, Jekyll, Nuxt, Frontity, Redux, MobX, Typescript, Hooks, Webpack, GraphQL, Gulp, threejs. ✔ HeadlessCMS - Sanity, Prismic, Craft, Strapi, Agility, DatoCMS, Sanity.io, Contentful, NetlifyCMS, Headless Wordpress, Headless Shopify. ✔ BackEnd - NodeJs, PHP/Laravel. ✔ CSS - Tailwind, Bootstrap, Bulma, MaterialUI, Foundation, pure css/saas. ✔ Databases - MySQL, postgres, mongo, dynamoDB. ✔ Deploy and CDN - Vercel, Netlify, Gatsby Cloud, Heroku, Firebase, AWS, Jenkin, Gradle. ✔ Other tools and skills - Git, Jira, AWS, Linux, Web Scraping, Python. ✔ UI/UX Design - Figma, Apple Sketch, Adobe PS, XD, Zeplin. ✔ Mobile App - React Native. Looking to add additional services to for your business ? Let's Talk!
Master's degree, Computer science
Warsaw University of Technology
May 10, 2021 - May 26, 2021
Working with John was a cake, I explain the issue it was related to the node js , he quickly understood and resolved the issue. Technically sounds good, good communication. will hire him again whenever needed.
May 31, 2021 - June 18, 2020
Very slick work, but I knew this from previous projects, they are the only developers that understand how to correctly manage a project from initial discussion, through wire framing to build and testing. My go to for web dev work.
July 4, 2021 - July 23, 2021
Great freelancer! Went above and beyond and completed task successfully. I appreciate his communication as well and kept me updated. I will definitely be hiring again!
July 30, 2021 - August 16, 2021
Quick delivery with everything as requested. A thorough, knowledgeable and professional freelancer who is a pleasure to work with. I'll be definitely coming back to him again when I have relevant work for him. Straight forward and delivers on time or before what's committed
September 5, 2021 - September 17, 2021
John s a great expert in ffmpeg and was able to write a script that did what we wanted. Would highly recommend.
September 29, 2021 - October 19, 2021
John is a great hire! Surprised me with the task several days early. Worked late at night teaching me things I didn't know about python. All around good guy!
November 14, 2021 - November 24, 2021
Very fast communication. Understands your task instantly and delivered a great quality of work. We will work with John again :-) Thank you very much!
December 2, 2021 - December 17, 2021
John is an amazing developer. Very talented and underrated. He's proactive and execute the tasks provided. We asked for some changes and he implemented promptly. Thanks for your help!
December 26, 2021 - January 11, 2022
Excellent communication and fast turnaround. Can not fault his work. I explained what I needed and he had it ready in a short time.
February 16, 2022 - March 12, 2022
John approached with a great proposal and offered the best services as one should expect. He followed back and asked for any critical requirements if I might be missing and asked if something is needed to be done at the end. The quality of the project is on the mark and delivered within a tight deadline and his skills were reasonably strong. Will hire him again. Thanks!!! John.
March 27, 2022 - April 13, 2022
John is very bright and very talented. One of the best technical resources I have ever worked with. I would definitely use him again.
May 12, 2022 - June 2, 2022
John really is the tech ninja. He developed a custom Shopify app that imports orders from many marketplaces we sell on. This will help us streamline our operations and save huge overheads. Niraj's communication has been excellent, despite our time zone differences, he always responds quickly and is happy to continuously make minor adjustments as required to get just what we need. We will continue to utilize his services for future projects and we have already recommended him to other colleagues in our industry.
