Skip to main content
Portrait of Martin Kozmelj

Martin Kozmelj

Senior software engineer at Sportradar, moving into engineering management

  • Based in Slovenia
  • Open to part-time freelance work

I enjoy mentoring and helping teams work better, and I build side projects with AI to see what it can really do.

About

I'm a senior software engineer moving into engineering management. I build products with Next.js, TypeScript and React, and I use AI tools like Claude and MCP to ship faster without giving up quality or judgment.

I've worked in a ten-person company and in a 4,000+ person corporation, so I care about clear communication, sensible prioritization and teams that adopt new tools thoughtfully. I write about what actually works, in code and in teams, and I'm open to selected part-time remote engagements.

Outside work you'll find me playing tennis or badminton, cycling or hiking.

Blog

Experience

  1. 2022 — Present

    Senior Software Engineer · Sportradar (opens in a new tab)

    Two years as a frontend developer in the Mobile unit, building admin dashboards for settings used in mobile apps, with a part-time role as Scrum master. Since September 2024 I've worked on the moderation interface.

    • Remix
    • Next.js
    • React
    • TypeScript
    • AWS
    • GitLab CI/CD
    • Angular
    • Scrum
  2. 2022 — Present

    Founder · Računalniške storitve in svetovanje (opens in a new tab)

    Freelance work for different clients, from simple websites to more complex full-stack applications.

    • Next.js
    • React
    • TypeScript
    • Tailwind CSS
    • Framer Motion
    • Sanity
    • WordPress
    • Vercel
  3. 2022 — Present

    Frontend developer · Indigo Labs (opens in a new tab)

    I joined the team on a project for a Slovenian spa, and I still help out on other projects when the need arises.

    • Angular
    • TypeScript

Projects

  1. Screenshot of the Medicenter Mali website

    Medicenter Mali (opens in a new tab) 2026

    Website for an ophthalmology center in Ljubljana and Medvode.

    • Next.js
    • Vercel
  2. Screenshot of the Dr. Ana Pajtler Rošar website

    Dr. Ana Pajtler Rošar (opens in a new tab) 2026

    Website for an ophthalmology practice in Ljubljana.

    • Next.js
    • Vercel
  3. Screenshot of the 6RaceCraft website

    6RaceCraft (opens in a new tab) 2025

    Website for a cycling coach with a blog.

    • Next.js
    • Sanity
    • Resend
    • Claude AI

If you've read this far, we might work well together. Send me a few lines about what you're building, and I'll tell you honestly whether I'm the right person for it.