Sebastian Gralikowski
@sebastiangralikowski
I build high-traffic React and Node.js platforms for gaming, loyalty, retail, and SaaS products.
United KingdomWhat I'm looking for
I've built internal game-configuration and player-support platforms for 2K Games at Mindera, helping modernize Ember.js and Python systems through React, Node.js, and GraphQL migrations supporting eight studios and more than 100 game releases.
Previously, I led four developers on IAG Loyalty's Avios platform, delivering customer journeys for up to 600,000 monthly visits across major airline programmes. I've also modernized Dunelm's delivery-promise platform, built SaaS products including Linki, and shipped an iOS alarm app using Swift and body-tracking machine learning.
Experience
Work history, roles, and key accomplishments
Senior Fullstack Developer
Mindera - 2K Games
Dec 2023 - Dec 2025 (2 years)
Developed internal platforms for 2K game studios, modernizing legacy Ember.js and Python systems through React and Node.js migrations. Enhanced customer-support dashboards and implemented production integrations for Amazon Luna and Netflix authentication workflows.
Education
Degrees, certifications, and relevant coursework
University of Warsaw
Bachelor of Arts, Psychology
2011 - 2013
Pursued studies in Psychology at the University of Warsaw from 2011 to 2013.
Tech stack
Software and tools used professionally
Availability
Location
United KingdomAuthorized to work in
Job categories
Skills
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