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I am a full-stack developer with 6 years of experience focusing on building clean, scalable, and intuitive apps. I am skilled in React, experience designing simple yet powerful merchant TypeScript, Node.js, and MongoDB, and have experiences. I am skilled in API integrations and app architecture, and work across departments to transform product ideas into high-quality development compatible features.…I am a full-stack developer with 6 years of experience focusing on building clean, scalable, and intuitive apps. I am skilled in React, experience designing simple yet powerful merchant TypeScript, Node.js, and MongoDB, and have experiences. I am skilled in API integrations and app architecture, and work across departments to transform product ideas into high-quality development compatible features.

Kelvin Carter

Full Stack Developer, Front-End Developer, Web Developer, +2

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I am a full-stack developer with 6 years of experience focusing on building clean, scalable, and intuitive apps. I am skilled in React, experience designing simple yet powerful merchant TypeScript, Node.js, and MongoDB, and have experiences. I am skilled in API integrations and app architecture, and work across departments to transform product ideas into high-quality development compatible features.…I am a full-stack developer with 6 years of experience focusing on building clean, scalable, and intuitive apps. I am skilled in React, experience designing simple yet powerful merchant TypeScript, Node.js, and MongoDB, and have experiences. I am skilled in API integrations and app architecture, and work across departments to transform product ideas into high-quality development compatible features.

Available to hire

I am a full-stack developer with 6 years of
experience focusing on building clean, scalable, and
intuitive apps. I am skilled in React, experience
designing simple yet powerful merchant TypeScript,
Node.js, and MongoDB, and have experiences. I am
skilled in API integrations and app architecture, and
work across departments to transform product
ideas into high-quality development compatible
features.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Polish

Fluent

English

Advanced

Work Experience

Frontend Engineer at XGentech

April 20, 2018 - Present

Built embedded UIs for Shopify merchants using React and TypeScript with Shopify Polaris. Developed real-time dashboards and analytics views based on merchant activity. Integrated REST APIs to manage apps subscriptions, billing, and notification systems. Refactored legacy components into modular, reusable structures for better maintainability. Improved performance and usability across mobile and tablet devices through responsive design and lazy-loading strategies.

Senior Front End Developer at Shopify (White-label Apps)

September 20, 2019 - Present

Developed white-label Shopify apps using React and Node.js. Integrated multiple GraphQL endpoints and custom webhooks for real-time events syncing. Built and maintained reusable React UI components aligned with Shopify Polaris. Optimized query performance in MongoDB; implemented indexing and schema factoring. Created a lightweight admin dashboard to manage apps settings, analytics, and user permissions.

Senior Front End Developer at Ada Astra

August 20, 2023 - Present

Led creation of sophisticated user interfaces, blending advanced web technologies with a keen eye for design. Collaborated directly from Figma files and design systems; translated mockups into responsive production-ready websites. Developed and maintained visually compelling and intuitive interfaces; mentored junior developers; optimized web performance; ensured cross-browser compatibility; integrated cutting-edge frontend frameworks to drive innovation and address complex technical challenges.