I help companies build the right thing.
I'm a full-stack software engineer with 10 years building production systems across frontend, backend, and infrastructure. After three years leading engineering teams, I went back to hands-on work — now independently.
Here's the bet I'm making: writing code has never been cheaper. Deciding what to build is now the hard part. Most of the expensive software mistakes I've seen in ten years weren't bad code — they were good code solving the wrong problem.
Email me — luka@korosec.cc
##What I do
I work with small and mid-sized companies on the kind of software problems that need someone senior to own end-to-end. Usually that means:
Custom web applications
Internal tools, customer portals, anything that's outgrown a spreadsheet.
Integrations and API work
Making your ERP talk to your webshop, your CRM talk to your accounting, the things that should already work together but don't.
Cloud and infrastructure
Migrations, setting up sensible deployment pipelines, untangling whatever the last person left behind.
Ongoing support and maintenance
For systems I've built, and occasionally for ones I haven't, on a monthly retainer.
And the occasional honest conversation about whether AI actually solves your problem or just adds risk.
##Are we a good fit?
I'm probably a good fit if you know what you want to achieve, but not what should be built to get there — or if you know what's broken, but not how to fix it. Figuring out what's actually worth building is the part I'm best at.
A few things I don't do: mobile apps, design work, SEO and content marketing, or WordPress. (I have a friend for the last one — happy to introduce you.) I'm less suited to very early-stage startups still figuring out what they are.
##How I work
I'll tell you what I think will and won't work, even when it's not what you wanted to hear. I can talk about technical work without burying you in jargon, and I'll happily go deep with your engineers when that's what's needed. If your project needs help I can't deliver well, I'll say so and point you elsewhere.
##Writing
I also tinker for fun and write about it at Luka builds things — my blog about software, self-hosting and all things DIY:
- 2025-11-04Turn your server into a family game streaming hub
- 2025-10-14A kid-friendly DIY jukebox
- 2025-09-29Declarative Incus on NixOS with SSO
- →All posts
##Get in touch
Based in Slovenia, available remote across the EU. A couple of plain sentences about what you're working on is plenty.