Working across the stack on EU public-sector and enterprise programs, with a focus on clean architecture and long-term maintainability.
Teams we've shipped with.
From solo founders to established product teams across Europe, the US, and MENA. A few can be named; a lot can't. The problems rhyme: real products, real users, real deadlines.
Teams across 10 cities in 9 countries.
A map of where the work has happened — every dot is a client HQ we've shipped software with.
A selection of client work.
Short write-ups of what we built, the stack we used, and the outcome. Longer case studies available on request under NDA.
Shipped The Social Hub (iOS, Android, web), ShopAz.com commerce app, OpenTalk.eu conferencing clients, and an internal hot-desking tool. React, React Native, Electron.
Senior engineering across client engagements from the London-listed tech consultancy's pipeline, until Valtech acquired Kin + Carta in April 2025.
Delivered mobile, web, and desktop features for international clients while the Sofia office kept its local Melon identity.
Led React for Aruba.com (Bloomreach integration), shipped Rabo Graintell at Rabobank (deep links, push, widgets), and delivered a Euro 2020 campaign for Takeaway.com. Planning, code reviews, and technical direction across teams.
React Native app wired to microservices, with a focus on UI consistency, component testing, and a clean communication layer.
Delivered a flexible, reusable UI architecture the team could extend without further frontend work.
Contributed to voter registration, results processing, and reporting modules in a high-stakes, high-availability environment.
Led Monster High™ Beauty Shop, contributed to Hotel Transylvania Adventures, supported the Game Live Ops team on monetization and critical bug work, and mentored junior developers.
Prototyped mini-games, designed three bonus rounds for the second story arc, and originated much of the game design work for bonus content.
"Nikola moves fluently across mobile, web, and backend. The code we inherited is clean, typed, and production-ready — onboarding a new engineer takes hours, not weeks."Engineering lead · Valtech