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Web developer building with React and Next.js.

I'm Klemen. I've worked with React and Next.js since 2021, picking up work across the stack when needed: backend endpoints, CMS rebuilds, web3 integrations, and deployment.

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01 — About

Who I am

I'm a web developer based in Slovenia. I learned by building small projects on my own, and I've been doing it professionally since 2020. I studied Informatics at Višja strokovna šola Novo mesto.

My focus is React and Next.js, but I'm comfortable across the stack — writing backend endpoints, reworking CMSes, wiring up data and web3/wallet integrations, and handling deployment and maintenance on Netlify and Coolify.

02 — Experience

Where I've worked

Web Developer · Dekrypt d.o.o.

2022 — Present
  • Build and maintain production React / Next.js applications, taking features from UI through to release.
  • When a project needs it, I also work on backend endpoints, data layers, and integrations.
  • Handle deployment, monitoring, and ongoing maintenance across Netlify and Coolify.
  • Deliver client projects for partner companies on a contract basis through Dekrypt, often as the lead frontend developer.

Before Dekrypt, I was a student developer at I.T.I. (Miha Bradač s.p.), working on WordPress sites and handling technical support and diagnostics.

2020 — 2022

03 — Selected work

Selected work

Project links open in a new tab.

Featured projects

Physifit

Client work · Booking and operations

Physifit homepage with its introduction, service navigation and wellness imagery.
The public Physifit homepage.

A multilingual booking platform for a wellness studio.

I built the customer website and staff dashboard, connecting reservations, payments and day-to-day scheduling.

  • Online bookings and Stripe checkout
  • Staff calendars and patient records
  • English, French and Slovenian

Next.js · TypeScript · Strapi · Stripe

Visit project

English website

Medicina Volovec

Client work · CMS and publishing

Medicina Volovec public clinic website with navigation, introduction and treatment promotion.
The public website served by the publishing system.

A clinic website with a custom content and publishing system.

I replaced the legacy Laravel system with a React CMS, backend APIs and a Next.js public website.

  • Treatment, news and promotion editing
  • Content in three languages
  • Staff-triggered publishing

Next.js · React · Express · PostgreSQL

Visit project

Hosta

Independent project · Forest management

Hosta overview with five demonstration parcels outlined on a forest map.
Existing Hosta interface · synthetic parcels and ownership data. Map © OpenStreetMap contributors.

Forest records that owners can consult at home and in the field.

I built this independent application around parcel maps, government data and the owner’s own records.

  • Parcels, observations and documents
  • Financial records and timber prices
  • Previously visited parcel pages readable offline

Next.js · TypeScript · MapLibre · PostgreSQL

Visit project

Public introduction in Slovenian

More work

BlockGaming platform introduction with its brand and mining-based gaming proposition.

BlockGaming / HashArcade

Client work · Gaming platform

Across the platform, I built React interfaces, real-time integrations and shared components, and handled frontend delivery.

React · TypeScript · PixiJS · Socket.IO

Visit project
Skala company website introducing its grain trading and property investment work.

Skala

Client work · Company website

I built this active bilingual company website, bringing together Prismic-managed news, investment pages and commodity price charts.

Next.js · Prismic · Recharts

Visit project
kajsegradi construction map of Slovenia with status and municipality filters.

kajsegradi

Independent project · Public-data map

An independent, early-stage project. I built a pipeline that collects and groups public construction records, and a React map with search, filters and project details.

React · TypeScript · MapLibre · Zod

Visit project

Maps in Hosta and kajsegradi © OpenStreetMap contributors. kajsegradi uses construction records from MNVP and cadastral data from GURS (CC BY 4.0).

04 — Stack

Tools I reach for

Frontend
  • React
  • Next.js
  • TypeScript
  • Vite
  • CSS Modules
  • HTML & CSS
Backend & data
  • Node.js
  • Express
  • NestJS
  • PostgreSQL
  • Redis
  • Strapi
  • Prismic
Web3 & payments
  • wagmi
  • viem
  • RainbowKit
  • ethers.js
  • Stripe
Infrastructure
  • Coolify
  • Netlify
  • Socket.IO
  • Resend
  • Git & CI
AI-assisted development
  • Cursor
  • Claude Code
  • Codex
05 — Languages

Languages I speak

  • Sloveniannative
  • Englishfluent
  • Croatianconversational
  • Frenchbasic
06 — Contact

Get in touch.

Open to interesting roles and collaborations. The fastest way to reach me is email.

GitHub ↗CV ↓