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Dmytro Sereda

@dmytrosereda

Message

Frontend developer building scalable React/Next.js applications with TypeScript.

Canada

Message

What I'm looking for

I seek frontend roles using React/Next.js and TypeScript where I can lead migrations, improve UX, and collaborate cross-functionally in a results-driven team.

I am a frontend developer with 5+ years building performant, scalable web applications using React.js, Next.js (App Router), and TypeScript. I lead migrations to headless CMS (Contentful), implement and maintain design systems (MUI), and deliver measurable business outcomes across e-commerce and non-profit projects.

I focus on clean, maintainable code, strong cross-functional collaboration with product, design, and backend teams, and automated testing (Cypress, Playwright, Jest). I’ve driven conversions, reduced time-to-market, and built internal tools and microservices that saved costs and improved workflows.

Experience

Work history, roles, and key accomplishments

Current

Frontend Developer

Current

Resident Home

Aug 2023 - Present (2 years 10 months)

Led migration of pages to Contentful CMS, reducing time-to-market by 50%, and helped migrate a React application to Next.js (App Router) while building e-commerce pages and maintaining MUI design system components.

React Next.js TypeScript Contentful Design Systems Migration CMS

Current

Software Developer

Current

Heart&Stroke

Feb 2022 - Present (4 years 4 months)

Redesigned and developed a donation form moving toward a MERN stack, increasing conversion rate by 20%, built internal React/Next.js apps that reduced operational costs, and implemented E2E Cypress tests to reach 90% coverage.

React Next.js Express Cypress REST APIs MERN Jest Microservices