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Open to work · Warsaw, Poland · Remote OK

Senior Product Designer.

8+ years shipping products across VR, consumer mobile, B2B SaaS and AI — from first sketch to final pixel. I bring design systems thinking, user research, and data obsession to every product.

✉ Say hello Notion Portfolio ↗ LinkedIn ↗
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0
Years exp.
0
Products shipped
0
Platforms
0
Languages
Product Design✦
UX Research✦
Design Systems✦
Mobile iOS & Android✦
VR Experiences✦
B2B SaaS✦
Figma✦
A/B Testing✦
Prototyping✦
WCAG Accessibility✦
Product Design✦
UX Research✦
Design Systems✦
Mobile iOS & Android✦
VR Experiences✦
B2B SaaS✦
Figma✦
A/B Testing✦
Prototyping✦
WCAG Accessibility✦
2K+
Users on cross-platform
internal app (0→1)
+43%
Video service share growth
7% → 10% via A/B testing
+7%
ARPPU growth
per reporting period
1mo
Audio service hit 1%
of total product share
Selected works

Products I've designed

End-to-end ownership — from zero to shipped.

View all work →
2022 — Present
VR · Mobile
SD Group — VR App
Full-cycle design for a VR application: PRD, visual identity, and high-fidelity delivery in direct collaboration with CEO & CMO.
↗ App Store ↗ Google Play
2023 — Present
iOS · AI Chat
Apptify — 6 Mobile Apps
6 consumer apps shipped to the App Store across diverse verticals — each with a unique visual identity optimised for activation & monetisation.
↗ TV Remote ↗ Volume Booster ↗ chatgen.net ↗ Messenger Duo
2021 — 2022
iOS · Android · Consumer
AIBY — NatureID
Plant identification app with a distinctive visual identity and pixel-perfect cross-platform consistency across iOS & Android.
↗ natureid.com ↗ App Store ↗ Google Play
2022 — 2023
Family App · Design System
Femili — Family App
Led UX from wireframes to hi-fi. Built a scalable design system. Conducted user research, usability testing, and mentored junior designers.
↗ femili.app
Personal Project
AI · Emotional Wellness · Solo Product
GetFeels — Full Product Redesign
Solo 0→1 product. Designed the complete user journey for an AI-powered emotional wellness app: research → flow architecture → full redesign → App Store launch assets. Improved chat quality by rewriting the system prompt and building a quality-control prompting layer. Delivered App Store visuals, screenshots, and metadata optimised for conversion.
↗ App Store
About me

Designer who
ships & scales

"I don't just make things beautiful — I make them work, convert, and grow."

📍
Warsaw, Poland · Remote-friendly
✉
olechkasmy@gmail.com
💬
t.me/Spacewthnnme
🔗
LinkedIn · Dribbble · Behance

I'm a Senior Product Designer specialising in end-to-end digital product design across mobile (iOS & Android), web, VR, and B2B SaaS.

Over 8+ years I've partnered with founders, CPOs, and engineering leads to ship products that drive activation, retention, and revenue. Research on Monday, pixel-perfect specs on Friday.

I bring design systems thinking, WCAG accessibility, and data-driven A/B testing to every project — and I love building strong design cultures through mentorship.

User ResearchDesign Systems A/B TestingAccessibility PrototypingMobile-first VR DesignMentorship PRD WritingFunnel Metrics
Experience

8 years of real impact

Full ownership across startups, product studios, and scale-ups.

Aug 2022 — Present
SD Group
VR App · iOS & Android
VR · Mobile
Product Designer
  • 0→1 cross-platform internal app — designed the full product from scratch; currently serving ~2,000 active users
  • 0→1 VR app MVP — shipped complete feature set (feed, calls, chat) with all supporting materials; led design direction solo
  • Ran A/B experiments on video services — grew video's share of total product volume from 7% to 10%
  • Designed and launched audio service — reached 1% of total product share within the first month
  • Collaborated with CEO & CMO to define PRD and align design with revenue goals; built cohesive design system across all touchpoints
2,000 active users Video share 7%→10% Audio: 1% share in 1 month
↗ App Store ↗ Google Play
Nov 2023 — Present
Apptify
Multiple iOS Apps · AI Chat
iOS · AI
Product Designer
  • Designed and shipped 6 consumer mobile apps across diverse verticals on the App Store
  • Optimised acquisition funnels and App Store visuals to improve conversion and retention
  • Created unique visual identities for each product from scratch
ARPPU +7% per period 6 apps shipped
A/B Testing Case
Ran systematic A/B experiments across onboarding flows and paywall screens. Iterating on copy, layout, and offer structure drove consistent ARPPU growth of +7% each reporting period — compounding meaningfully across a multi-app portfolio.
↗ TV Remote ↗ Volume Booster ↗ chatgen.net ↗ Messenger Duo
Dec 2022 — Jul 2023
Femili
Family & Lifestyle App
Design System
Junior Art Director
  • Led UX design from wireframes through high-fidelity, driving stakeholder alignment
  • Conducted user research & usability testing; turned data into actionable improvements
  • Built a scalable design system, style guide, and component library
  • Mentored junior designers and contributed to product roadmap & strategy
↗ femili.app
Personal project
GetFeels
AI Emotional Wellness App · iOS
Solo · 0→1
Product Designer — Solo
  • Full product redesign — redesigned the entire app from scratch: UX audit, new IA, complete hi-fi screens
  • Designed clear, structured user flow for emotional journaling and AI chat interactions
  • Improved chat response quality by rewriting system prompt and building a quality-control prompting layer
  • Created all App Store assets: screenshots, preview graphics, and metadata copy optimised for conversion
Full Product Cycle — 0 to App Store
Research → hypothesis → UX redesign → prompt engineering → App Store launch. A solo end-to-end case that demonstrates the full product design spectrum — from user psychology to conversion copy.
↗ App Store
May 2020 — Sep 2022
Yandex Practicum
Education Platform
Mentorship
Mentor & Design Expert
  • Mentored aspiring designers through curriculum covering research, IA, interaction & visual design
  • Evaluated work against industry standards — built reputation as a trusted expert
Mar 2021 — Aug 2022
AIBY
NatureID — Plant ID
iOS · Android
Mobile / UX·UI Designer
  • Designed a consumer mobile product with distinctive visual identity contributing to retention
  • Maintained cross-platform visual consistency through rigorous style guide enforcement & QA
↗ natureid.com ↗ App Store
Oct 2019 — Mar 2021
Weldbook
B2B SaaS Platform
B2B SaaS
Mobile / UX·UI Designer
  • Redesigned a B2B SaaS interface, enhancing usability and task-completion rates
  • Created interactive prototypes, scenario maps, and user flows for feature development
Nov 2017 — Oct 2019
IMarket Trade
E-Commerce Platform
E-Commerce
UX·UI Designer
  • Designed UI/UX improvements; built a style guide system from scratch
  • Created HTML5 banners for Google & Yandex supporting marketing acquisition
  • Led brand identity development including full brandbook
Skills & tools

What I bring

Core design skills
UX/UI Design & Prototyping
Design Systems
User Research & Testing
Information Architecture
Mobile-first Design
Visual Identity & Branding
Strategy & process
Data-Driven Design (A/B)
Product Strategy & PRD
Cross-Functional Leadership
Accessibility (WCAG)
Design Mentorship
Funnel & Metrics Analysis
Design tools
FigmaSketchAdobe Photoshop Adobe IllustratorAfter Effects PrincipleProtoPieMiro Lottie / JSONDesign Tokens
PM & collaboration
JiraConfluence NotionSlackAsana
Technical & analytics
HTML / CSS basicsA/B Testing Funnel AnalyticsData Analysis
Education

Background & learning

2015
Bachelor's Degree in Economics
Belarusian National Technical University (BNTU), Minsk
2017
UI/UX Design Professional Course
IA · Interaction design · User research · Design systems · Gestalt principles
2023
Statistics for Data Science & Business Analysis
Udemy · Strengthening data literacy for design decisions
🇬🇧
English
B2 · Upper Intermediate
🇷🇺
Russian
Native
🇵🇱
Polish
Conversational
Let's work together

Ready to build something
remarkable?

I'm open to full-time product design roles and select freelance projects. If you're building a product that deserves great design — let's talk.

✉ olechkasmy@gmail.com Telegram ↗ LinkedIn ↗
Also on Dribbble · Behance · Notion Portfolio