Product design lead · Ljubljana

I design complex products and the systems behind them.

Product designer for regulated B2B software, design systems and mobile apps. I work from the product logic through the interface to working front-end code, with teams in the EU and the US, since 2014. Open to a lead or senior role, full-time or contract.

Selected work CV (PDF)
12 yearsdesigning software products, end to end
69 componentsgoverned in one library serving four regulatory themes, adopted screen by screen (Chemius, 2026)
47%invite-to-signup conversion on a ten-day open testnet (Based, February 2026)
150K+monthly active gamers on FirstBlood (April 2021), whose design I led from 2019

Selected work

Two case studies

Each card is the short version. The case study has the decisions, the system underneath, and what shipped.

Design system · Angular and Storybook · Design system lead · 2026

A design system for a regulated product, adopted one screen at a time

The Chemius interface was a patchwork of PrimeNG defaults that got harder to extend with every release. I designed the foundations in Figma and shipped them as production Angular with AI writing most of the code. Four regulatory domains share one library, and the team is migrating without a big rewrite.

69 governed components·Four domains, one library·Adopted screen by screen·Team of four engineers

  • Problem
  • System
  • Interface
  • Build
Read the case study

Mobile · Opinion markets · Head of Design, fractional · 2025 to 2026

A trading app that feels like a feed, not a terminal

Underneath there is an automated market maker and on-chain settlement. On the surface: scroll, tap Based or Cringe, watch it resolve. My job was to keep the machinery out of sight. I owned the product, the brand, the motion and the design system.

47% of invites signed up·33% still trading after a week·Ten-day open testnet, February 2026

  • Problem
  • System
  • Interface
  • Build
Read the case study

More work

Six more projects

Syyclops Enterprise software · AI digital twin Lead UX/UI designer, contract · web and iOS 2023 to 2025 FirstBlood Esports platform Designer, then Head of Design 2018 to 2025 Mana Fintech · Mobile Lead UX/UI designer 2021 to 2022 Baron Pet care · Side venture, public beta Founder, design and build 2024 to now Hoopoz AI analytics · Web Contract UX/UI designer 2024 Talentive Sports · Mobile Contract UX/UI designer 2023

All work

How I work

Four things I do on a product

Each case on this site says which of these I owned.

01

Product

Turning a vague product problem into a model the team can build on: who the users are, what the objects and states are, and which workflow actually matters.

02

System

Tokens, components, patterns and rules, written down, so the team keeps the quality up when I am not in the room.

03

Interface

The screens themselves, for dense SaaS and for mobile, including the states nobody screenshots: empty, loading, half loaded, failed.

04

Build

Prototypes and, where it makes sense, the real front end, so a decision gets tested in the thing that ships. AI writes a lot of the code. I set the rules and review it.

Things I built

Two things I built myself

Build notes rather than case studies: what I wanted to find out, what I did, what the AI did, and what I changed once real people used it.

Live site · 2026

vektor.si, my studio’s site

The question
Can a small studio sell fixed-price websites to small businesses from a web page alone, with no sales call, and still be clear about what is and is not included?
Built with
Vite, plain JavaScript, GSAP, self-hosted fonts, one PHP endpoint. 44 pages, in Slovenian and English.
My part
Positioning, structure, every screen, the price configurator and how it calculates, the decision to run with no cookies and no third-party scripts, the QA scripts, the deploy.
AI’s part
Claude Code wrote most of the code and did the sweeps across both languages, working to rules I wrote and checking back with me.
What I changed after
The hero had an interactive vector field. Once real screenshots were on the page it fought the headline, so I replaced it with a plain work-preview card. The phone navigation moved to a bottom bar after I tried it on my own iPhone.
Proof
vektor.si, live since August 2026

Open source · Windows and Arch Linux · 2026

AirPlayPC, iPhone screen mirroring for a PC

The question
Mirroring an iPhone to a PC should not need an app on the phone. iOS already speaks AirPlay. Could the PC just be the receiver, and could the fiddly part, install, firewall, mDNS and the reason it is not working, be made to disappear?
Built with
PowerShell 5.1 and WPF around the UxPlay receiver, with an Inno Setup installer, firewall rules, a diagnostics script that names the actual cause, and an iPhone-shaped framed view. An Arch Linux port followed, with GTK 4 and Bluetooth control of the phone through AssistiveTouch.
My part
The scope, the desktop experience, the installer and diagnostics flow, the framed view, testing end to end on real hardware, and the README that people actually read.
AI’s part
Claude Code wrote most of the PowerShell and the glue, to a brief and a CLAUDE.md I maintain in the repo.
What I changed after
The status poll made the window stutter while being dragged, so it pauses during a drag. The pairing PIN vanished exactly when people needed it, so it now stays visible for the whole session. Fullscreen and the phone frame fought each other, so they became exclusive.
Proof
github.com/gbulog/pcairplay: 91 stars, 10 forks, MIT, published July 2026

Experience

Where I have worked

BENS Consulting / ChemiusProduct designer and design system lead, contractNov 2025 to now
Based, now RatioHead of Design, fractionalApr 2025 to Apr 2026
SyyclopsLead UX/UI designer, contractApr 2023 to Jan 2025
FirstBlood & ManaUX/UI designer, then Head of Design from 2021Apr 2018 to Apr 2025
ENKIUX/UI designer, digital agencyJun 2014 to Apr 2018

I contract through my own studio, Vektor, in Ljubljana. That is how I have worked with product teams since 2014, and it is also where I build websites end to end. Baron is a side venture I founded, designed and built; it is in public beta.

Full CV PDF

Recommendations

What people I have worked with say

Grega is one of the best team members I’ve worked with over the years. An exceptional designer who always takes great ownership of everything he’s tasked with. A great team leader at managing stakeholders’ expectations as well as his own team members.

Joe Zhou
Founder, investor

I’ve worked with many web, UX, and UI designers throughout my career (30+ years), but Grega stands out.

He delivers beautiful, professional, and intuitive designs faster than anyone I’ve worked with before. And, most importantly, he delivers working websites and prototypes; not just designs.

When I first started working with him, I was genuinely surprised that this combination of speed, quality, and execution was even possible.

Bojan Buinac
CEO, BENS Consulting

I’ve worked with Grega for nearly three years, both at Mana and First Blood Interactive. An excellent designer, both web and graphic, always delivering to brief and to spec. Any organization would be lucky to have him in their design department.

Derek Seklecki
Head of Marketing, FirstBlood & Mana

About

A bit about me

I have spent twelve years making complicated products easier to use: regulated B2B software, fintech, esports, AI tools. I think in systems, design in Figma, and more and more I build in code, so I can test a decision in the thing that actually ships.

Slovenian is my first language, English is the one I work in. I work remotely with teams in the EU and the US. If you are hiring a lead or senior product designer, or you need someone inside a complex product for a while, write to me.

LinkedIn GitHub More about me
Grega Bulog with his dog