Hi, I'm DejvCodes.
Medior Front-end Developer
I design and build websites, web apps and interfaces that turn ideas into clean, high-performing experiences with sharp UI and real-world usability.
About Me
Building Philosophy
DejvCodes is my personal brand focused on building modern, custom websites and web apps with clean, well-structured code. I create fast, responsive experiences that look great, feel smooth and are optimized for performance and SEO.
3+ years of front-end experience - clean code, sharp UI, real-world results.
Pardubice, Czechia
Name
David Kalmus
Age
24 years
Timezone
Europe/Prague
Daily Essentials
Work History
Freelance Web Developer
2026 - PresentDejvCodes
Building custom websites with clean code, detail-focused UI, responsive layouts, on-page SEO and performance optimization using TypeScript, Next.js and Tailwind CSS.
Front-end Developer
2025 - PresentConviu s.r.o.
Building an e-commerce web app for e-shops with Vue 3, Nuxt 3, TypeScript and Tailwind CSS. Refactoring and optimizing the codebase, shipping features, integrating GraphQL via Apollo and collaborating on UI/UX.
Electromechanic
2023 - 2025Ignitech s.r.o.
Building and testing motorcycle electronics (ignition systems, connectors, wiring harnesses), tuning ignition settings and performing final functional checks.
Skills &
Experience
I build production-ready web apps with Next.js and React, writing type-safe code with TypeScript and creating responsive UI with Tailwind CSS. I also work daily with Vue 3 and Nuxt 3 on an e-commerce app.
Every project is optimized for performance, SEO and real-world usability - delivering fast, accessible experiences that work flawlessly across all devices.
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