Марк

Mark Berladyn
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | portfolio: markberladyn.com | Telegram: @markberladyn
Kracow, Poland

Senior Product Designer / AI-First Product Builder, SaaS and Complex Digital Products

10+ years designing web and mobile products with a focus on activation, retention, and conversion. End-to-end
experience from research and hypothesis testing to UI, analytics, A/B testing, launch, and iteration. KYC drop-off
20%→6%, conversion to paid 16%→84%, retention 7%→70%+, revenue +1400%. Now using AI-assisted
development to go beyond design and ship working products. Took an AI-native iOS app from idea to the App
Store in 4 months and continue developing it based on live product data. Visual Arts degree with a strong
foundation in composition, typography, illustration, color, and visual hierarchy.

Professional skills: activation and retention optimization | subscription and paywall design | onboarding and
time-to-value optimization | churn prevention | A/B testing | user research and usability testing | behavioral
analysis | data-driven design | conversion optimization | systems thinking | information architecture | design
systems with production-grade tokens | high-fidelity UI | analytics setup (Amplitude, Hotjar, GA4) | AI-integrated
design workflow | AI-assisted product development | AI agents | design-to-code | rapid prototyping

Technologies: Figma | Tokens Studio | Storybook | Amplitude | FullStory | Hotjar | Google Analytics | Jira | Notion
| GitHub | Miro | Claude Code | n8n | Claude AI | Python (learning)

Interpersonal skills: cross-functional collaboration | stakeholder alignment | workshop facilitation | design
critique | mentorship and design leadership | presentation skills | adaptive in ambiguity

Experience

Senior Product Designer / AI-First Product Builder - Vault Nov 2025 - present
AI-native personal finance app for iOS, live on the AppStore.
- Took Vault from idea to App Store release in 4 months — research, UX/UI, design system, AI-assisted
development, testing, and launch
- Conducted 10+ user interviews and mapped the customer journey to identify the main activation
problems
- Designed and tested subscription paywall — conversion to paid 16% → 84% (~1,300 accounts)
- Built AI-powered input flows for voice, receipts, and bank statements — reduced friction to first value by
80%
- Set up Amplitude/Hotjar analytics and product events for activation, retention, funnels, and feature
adoption
- Currently developing v3 based on live product data, user feedback, and usability testing
- Working on acquisition and conversion funnels, marketing experiments, and new product features
- Built a 60+ component token-based design system
- Use Claude Code, Cursor, GitHub, and AI agents to design, prototype, build, and ship product changes

Achievements:
- Concept to App Store in 4 months
- AI recognition accuracy: 95% receipts, 90% statements, 3-5s response
- Post-launch usability testing - shipped iterative improvements based on live user data

Senior Product Designer - RPS Mine (Startup) Oct 2024 - Nov 2025
Web3 product with marketplace mechanics and in-app purchases. Telegram Mini App + mobile.

- Funnel audit via Hotjar and Amplitude - identified drop-off points across activation and purchase flows
- Redesigned onboarding - time-to-first-value from 4 steps to 1
- Redesigned purchase UX - slider replaced with 4-tier packages, revenue +1400%
- Redesigned monetization and engagement loops based on behavioral analysis
- Design system from scratch - 100+ components, handoff time reduced by 50%

Achievements:
- Retention 7%→70%+, revenue +1400%, DAU 3K→18K+, measurable business impact
- Wallet integration shipped end-to-end with engineering - 0 critical bugs at launch

Senior Product Designer - CarGurus (contract) Apr 2023 - Sep 2024
B2B/B2C fintech platform - credit application flows, bank API integration, payment processing across 10
locations.
- Mapped 12 friction points across dealer and customer journeys through UX audit and analytics
- Redesigned credit flow with bank API - real-time status tracking, error handling for edge cases
- Legacy platform migration - delivered under 4-month deadline, 0 data loss, 0 downtime
- Aligned 4 stakeholders with competing priorities to scope and ship features
Achievements:
- No-code page builder: maintenance cost $7,000/mo → $0 - annual savings $84K
- Automated credit flow - removed managers from manual data entry, processing time reduced by 70%
- Tax season campaign UX: daily sales 30 → 80 cars (+167%)

Lead Product Designer - Dex-Trade Feb 2021 - Apr 2023
Fintech platform - $64M+ daily volume, 144 trading pairs. Web and mobile.
- Analyzed 10K+ session recordings via FullStory and Amplitude - found critical drop-offs
- Redesigned KYC - compliance-driven UX across 3 jurisdictions
- Post-registration onboarding funnel - A/B testing across 8K+ users
- Mobile trading terminal - 100+ hypothesis iterations within technical constraints
- Design system: Tokens Studio, Storybook, semantic tokens, dark/light mode
- Managed and mentored team of 4 designers, established design review process
Achievements:
- KYC drop-off 20% → 6% - unlocked ~2,400 additional verified users/month for deposit conversion
- First-time deposits 11.3% → 27.8%, direct revenue impact on exchange volume
- Mobile trading terminal: trading volume +40%
- Token listing workflow: weeks → 1 day, operational efficiency for business team
- NFT marketplace launched from zero

Early Experience - 2014 - 2021

Product UI/UX Designer - AutoRia/DomRia, 4M+ automotive and real estate classifieds in Ukraine | EDC
Blockchain, P2B crypto exchange platforms | Binaryx digital products and web platforms.

Education

2026 - Master's Degree in Visual Arts - Institute of Visual Arts
2016 - Designlab - UX Academy
2002-2007 - Bachelor's Degree in Design - Lviv Academy of Arts
English - B1-B2 | Ukrainian - Native