Stayu Kasabov
Stayu Kasabov

Senior Product Designer

Actively looking · Member since 1 Oct 2026
Location
Sofia, Bulgaria
Desired salary
Confidential
Work preference
Remote Only / Full Time, Part Time, Contract, Freelance
Experience level
Senior

About

Professional summary

I am a senior product designer with more than 20 years of experience shaping digital products, design systems, and front-end-ready prototypes. I work across product strategy, user experience, interaction design, visual design, and delivery.

I have led end-to-end product design for SaaS, media, entertainment, e-commerce, and technology organizations. My work includes UX strategy, research, information architecture, user flows, usability testing, accessibility, brand systems, and engineering handoff.

I led product and design for Planetaplay, Bulgaria's first video-on-demand platform, helping grow it to more than 500,000 registered users before its user base and technology were acquired by a mobile operator. I have also delivered CMS platforms, web products, MVPs, and integrated media ecosystems.

I build scalable design systems in Figma using component libraries, variables, and design tokens. I partner closely with product managers and engineers to ensure design intent is preserved through development and that products meet WCAG accessibility requirements.

I use AI-assisted development and context engineering to turn product ideas into functional prototypes and tools. With Claude Code and Gemini, I combine product design expertise with HTML, CSS, JavaScript, and spec-driven development.

I am seeking a senior product design role within an established product team, preferably remote within the European Union.

Skills

28 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Application Utilities

Languages & Frameworks

Experience

Career history

Senior Product Designer Stayux

I lead end-to-end product design for more than 11 client organizations under NDA, covering UX strategy, product audits, design systems, and engineering handoff. I work closely with product managers and engineers throughout delivery.

I build Figma design systems with component libraries, variables, and design tokens, incorporating WCAG accessibility audits. I also deliver front-end-ready prototypes, technical documentation, and brand identity systems for SaaS, media, and e-commerce clients.

Head of Product Design Nuvizus Communications

I led product design at a digital agency, managing a rotating team of five designers and 15 developers alongside project consultants. I mentored designers and owned product strategy, user research, UX/UI, information architecture, and delivery for more than 50 clients in technology, entertainment, and media.

I led a 10-year engagement for Payner Ltd and Planeta TV, including the strategy and design of Planetaplay.com, Bulgaria's first VOD/OTT platform integrated with a TV production portal. The platform grew to more than 500,000 registered users before a mobile operator acquired its user base and technology.

I designed and led products including Planetapartner.com, Planetaface.com, Paynerstore.com, and an event system for Payner.bg. I also led development of a proprietary role-based CMS deployed for ING Bank, TV7, and Planeta.tv, and won the design contest for the b-trust.org e-signature portal.

Head of Web Design and Advertising Bitex.com ISP

I led the in-house web team at one of Bulgaria's early internet service providers. I created product strategies and managed advertising campaigns.

I coordinated web design and advertising activities to support the company's digital products and market presence.

Solo Designer and Builder Capcat

I designed and built Capcat, an open-source CLI/TUI tool for saving web articles into a searchable local archive. The product supports more than 12 news sources, custom RSS feeds, a fast command-line interface, and a guided terminal user interface.

I conducted jobs-to-be-done analysis, heuristic evaluation, user interviews, and post-launch user testing. I built the tool through spec-driven development and context engineering, first using Gemini and later Claude Code.

I shipped v1 improvements including pipx installation and Obsidian integration. The architecture includes rate limiting, robots.txt compliance, and attribution.

Education

Learning history
No education data available.

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