Frontend Dev UI Engineer

Hello, I’m Denis! Denis Marushchak

I’m a software engineer & designer who cares about clean UI and solid, scalable code. Lately, I’ve been exploring how AI can push the boundaries of web interfaces, automating workflows and levelling up creativity. Whether it’s a slick marketing site or a complex app, I ship fast, clean, and future-proof.

Get in touch Copy Email Copied! 🥳
Available for full-time / part-time projects
x.com LinkedIn GitHub
CV Email
Stocktake AppStore
Stocktake AppStore 2025
OMS Landing
OMS Landing 2025
Hours CTA
Hours CTA 2025
Cards
Cards 2025
Hours Onboarding
Hours Onboarding 2025
Stocktake AppStore
Stocktake AppStore 2025
OMS Landing
OMS Landing 2025
Hours CTA
Hours CTA 2025
Cards
Cards 2025
Hours Onboarding
Hours Onboarding 2025
Recent Projects

Treenity
 in development

No-code builder.

leading development of drag-and-drop web app

    react
    remix
    typescript
    turborepo

PointOfSale

Marketing site.

handled both design and development

    figma
    astro
    typescript
    payloadcms

Kvarum

Scheduling app.

built UI and internal event flows

    react
    remix
    typescript
    turborepo

Inventory

Marketing site.

handled both design and development

    figma
    astro
    typescript
    payloadcms

Hours

Time tracking app.

designed and developed landing page, worked on in-app calendar

    figma
    astro
    react
    nextjs
    typescript
    payloadcms
Experience

6+ years

  • Treenity

    Senior Frontend Developer

    Jan 2024 - Mar 2025

    1 year, 2 months

  • Erply

    Frontend Developer / UI Engineer

    May 2020 - May 2025

    5 years

  • Auckland Live

    Frontend Developer

    Feb 2019 - May 2020

    1 year, 3 months

  • Freelance

    Frontend Developer

    Sep 2018 - Present

    6 years, 8 months

 I’ve worked with many more companies like Hours.ee, Shoproller.com, PDFGenerator and more...