I’m looking for a Product Designer or Design Engineer role — remote, or office-based in Sofia — where I can bridge design and implementation, prototype fast, and stay involved through production. I’m especially drawn to product teams that value craft, move quickly, and treat AI as a real part of how products are built.
Looking for a job
Rostyslav Fesyk
@rostyslavfesyk
Product Designer & Design Engineer bridging design and code with AI, rapid prototyping, and design systems.
BulgariaWhat I'm looking for
At TRINETIX, I own mobile UI delivery through an AI-native workflow, helping close the design-to-code gap and secure the next project phase. I also built a production-ready internal tool that saves employees approximately 4 hours of work per week.
At TRINETIX, I lead AI adoption across the design team, training designers and running hands-on masterclasses on AI-powered design and development workflows.
At THE GRADIENT, I built scalable design systems and designed an AI-powered health app, creating native prototypes with AI and testing them with the client. I also created no-code landing websites for clients and built a B2B admin panel with payment integrations and detailed micro-flows.
At PINATA FARMS, I optimized a creation flow that increased conversion from 47% to 63%. I conducted UX research, created wireframes and interactive prototypes, and designed web and mobile interfaces and UI animations.
Experience
Work history, roles, and key accomplishments
TR
Current
Product Designer
Trinetix
Jan 2025 - Present (1 year 9 months)
Owned mobile UI delivery through an AI-native workflow, closing a critical design-to-code gap and helping secure the next project phase. Built a production-ready internal tool that saves employees approximately 4 hours of work per week.
TG
Product Designer
The Gradient
Jan 2023 - Jan 2025 (2 years)
Built and maintained scalable design systems to ensure consistency across products and teams. Designed AI-powered health app around a distinctive design concept, then built native prototypes using AI and tested them with the client.
PF
Product Designer
Pinata Farms
Jan 2020 - Jan 2023 (3 years)
Optimized creation flow that led to increased conversion from 47% to 63%. Conducted UX research to identify user needs, pain points, and product improvement opportunities.
Education
Degrees, certifications, and relevant coursework
Lviv Polytechnic National University
2017 - 2021
Pursued a degree at Lviv Polytechnic National University from 2017 to 2021.
PR
Projector
UX Beginning, UX
2021 -
Completed the UX Beginning course in 2021.
PR
Projector
UX Medium, UX
2023 -
Completed the UX Medium course in 2023.
Tech stack
Software and tools used professionally
Availability
Looking for a job
Location
BulgariaAuthorized to work in
Website
rostyslavfesyk.designPortfolio
rostyslavfesyk.designSalary expectations
90k+ EUR
Job categories
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