David Szucs
@davidszucs
Senior frontend developer at Zappar who shaped Mattercraft’s XR editor and built its browser-based animation timeline.
BulgariaWhat I'm looking for
At Zappar, I was responsible for the user interface of Mattercraft, a browser-based XR authoring tool. I worked on resizable editor panels around a live 3D viewport, and built a timeline editor with motion curves and motion blending.
As a Frontend Developer at Inspekto, I built the React interface for an autonomous machine-vision system, including a zoomable polygon editor for mapping inspection regions. I pushed the number of drawable polygons to the limits of what the browser could handle.
Since 2011, I’ve worked remotely on production React and TypeScript builds, WebGL and creative web projects. Since 2025, agentic development with Claude Code and issue-driven GitHub workflows has been part of my freelance practice; I review every diff and keep architecture and visual craft in my hands.
Experience
Work history, roles, and key accomplishments
Frontend Developer & Agency Freelancer
d.free
May 2011 - Present (15 years 6 months)
Production React and TypeScript builds, WebGL and creative web work, and design-to-code for agencies and 3D software companies. Campaigns for Diageo, Calvin Klein and Renault. Since 2025, agentic development (ClaudeCode, issue-driven GitHub workflows) is part of how I work.
Senior Frontend Developer
Zappar
Jun 2022 - Aug 2025 (3 years 2 months)
Responsible for the UI of Mattercraft, Zappar's XR authoring tool: resizable editor panels on a complex application architecture, real-time Three.js at its heart, and a full timeline editor with motion curves and motion blending.
Frontend Developer
Inspekto
Nov 2018 - Aug 2021 (2 years 9 months)
The user interface of an autonomous machine-vision system, built in React while the company grew from startup to international business.
Co-Founder
VR-Reel Media
Jan 2015 - Dec 2017 (2 years 11 months)
Co-founded a VR studio. Immersive VR and AR experiences, built end to end in Unity3D and Unreal Engine, for Audi, Tesco and Grohe.
Digital Animator & ActionScript Developer
Relish Creative
Jan 2008 - Dec 2011 (3 years 11 months)
Hundreds of campaigns under strict file-size limits, plus viral apps and sites for Fiat, Unilever and Square Enix.
Education
Degrees, certifications, and relevant coursework
University of Pécs
Computer Sciences and Cultural Management
2005 - 2007
Studied Computer Sciences and Cultural Management at the University of Pécs from 2005 to 2007.
Szent György Media and IT Vocational School
Multimedia Development
2002 - 2004
Studied Multimedia Development at Szent György Media and IT Vocational School from 2002 to 2004.
Tech stack
Software and tools used professionally
Availability
Location
BulgariaAuthorized to work in
Website
dfree.co.ukPortfolio
dfree.co.uk/cvSalary expectations
Social media
Job categories
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