Hi, I’m Marko, an engineer and designer from Slovenia.

privacy-yes • ai-no-slop • ai-research • ux-psychology • oss • arch-macos • web3 • writing • traveling • si-ua

I’ve been building digital products for 10+ years, across startups, enterprise teams and emerging tech. My work covers engineering, UX and product. Most of my time goes into frontend development, but I’m usually involved well before the code: figuring out what t he product needs to do and how it should feel to use.

Outside of work, I’m inspired by travel, cultural exploration and artistic expression. I enjoy learning languages, attending meetups and conferences, reading and participating in book clubs, journaling, music, woodworking, and interior design.

Clients & Projects

░ Senior Frontend Engineer ─Provenant

2025-2026 | Remote | dpp • product • ai-development

Provenant’s builds a Digital Product Passport platform that helps companies prepare for EU DPP rules and prove where their products come from.


  • Established t he initial architecture for t he end-user, admin, and back-office platform.
  • Used AI-assisted development to ship faster.
  • Designed t he JSON schema and rendering engine driving dynamic forms and configurable user inter faces.

░ Senior Frontend Engineer ─Club dVIN

2022-2025 | Remote | web3 • nft • blockchain • pwa

Club dVIN is a luxury wine membership platform using blockchain to connect collectors, producers and wine lovers through verifiable memberships and rewards.


  • Led frontend development across the customer-facing platform and member dashboard.
  • Implemented Ethereum and Solana wallet integrations alongside crypto and Stripe payment flows.
  • Worked on UX for the membership experience.

░ Advisory ─Votebetting

2021-2023 | Remote | advisory • pwa

Votebetting is a non-gambling social application aimed at tipsters and recreational sports betting players.


  • Advised on product and UI.
  • Worked directly with the implementation team to present the product and align on technical details.
  • Conducted limited code reviews and offered architecture recommendations.

░ Senior Frontend Engineer ─Protokol

2021-2025 | Remote | web3 • crypto • product • blockchain • pwa

Protokol is a Web3 studio building custom products and dApps for clients, covering blockchain, DPP, NFTs and DeFi.


  • Developed user-facing features across multiple Web3 products and client engagements.
  • Implemented blockchain integrations, wallet connectivity, and smart contract interactions.
  • Contributed to product development from UX implementation through production delivery.

░ Lead Frontend Engineer ─MediaINFO

2016-2021 | Remote | ux • arabic • rtl • canvas-api • hi-res-images • ocr

MediaINFO is a complete Digital Library software solution for interactive and intuitive viewing, browsing, searching, cataloging and sharing digitized content. Clients range from the smallest publisher to great national libraries and governmental institutions that bring millions of pages and images online each year.


  • Built new product features and modernized the frontend architecture.
  • Led frontend development and collaborated closely with design on the product experience.
  • Developed Canvas API–based document viewing tools alongside reusable layout, templating, and localization systems.

░ Frontend Engineer ─NewBay

2012 | Dublin, Ireland | telecommunications • multimedia • ux

NewBay is delivering highly successful commercial services for operators and device makers worldwide. Customers include T-Mobile, Telefónica O2, Orange, U.S. Cellular, AT&T, Telstra, Verizon and LG Electronics. NewBay is processing millions of messages daily and stores billions of media for live operator and device maker services.


  • Developed UI for cloud storage and media management products.
  • Implemented product improvements and new functionality.
  • Investigated and resolved issues and maintained the existing codebase.

░ Product, UX & Design ─Freelance

2010–2026 | Remote, Slovenia, Ireland, Ukraine, | product • ux • consulting • full-stack

Alongside the projects above, I partnered with numerous small and medium-sized businesses, startups, and entrepreneurs on both local and international projects. My work covered product thinking, UX, design, frontend, and backend engineering.


  • Led product discovery and translated business goals into technical solutions.
  • Designed and built user interfaces.
  • Developed full-stack web applications and custom business tools.
  • Worked directly with clients to refine requirements and guide product direction.
  • Delivered projects from initial concept and prototyping through implementation and launch.

Articles

░ Vinnytsia, Ukraine

5/2026 | travel A journey to Vinnytsia through wartime Ukraine, and a reflection on anxiety, memory, courage, and the quiet kindness found along the way.

░ Dubai

2/2026 | travel, pro A weekend in Dubai for the DDX design conference, shaped by conversations with people from around the world and brief evenings exploring the city.

░ Journaling & Budapest

12/2025 | travel, personal A new journaling habit, a lucky streak, and two winter weekends spent discovering Budapest beyond its role as a place to pass through.

Contact

I’m currently open to new opportunities, consulting work, and collaborations with people building interesting products. If there’s a potential fit, I’d be glad to hear from you. Whether you have a project in mind or just want to say hi, don’t hesitate to reach out

GitHub LinkedIn marko(at)gaj(dot)st