Senior Product Designer

I make complex products clear.

I'm Guy. I've worked on trading platforms, mobile apps and games. I design the flows and interfaces, then work with developers through implementation and QA.

  • 35% → 75% of new 50K users verified and became active traders
  • Sole designer for most of my time at 50K; led two designers when the team grew
Fintech · Mobile · Games · Product systems
  • 50K
  • 12Tech
  • Ready Steady Games
  • NO GAME
Selected work

01 / Fintech · CySEC-regulated / 2022 — present

50K

Margin trading platform · iOS, Android, Web

  • Outcome 35% → 75% of new users verified and became active traders · internal cohort, 3+ months
  • Product scale ~1,400 active traders a day
  • Product scale ~1,600 new positions a day
Visit 50K

Trading flows for new and experienced users

50K is a margin trading platform for stocks, ETFs, commodities and indices. I've worked on registration, identity verification, trading and market discovery, alongside the website and internal tools.

50K market discovery: popular instruments, a watchlist and a live chart
TradingInstruments are grouped by category, with prices and key information in each row. Users can open a chart and choose the timeframe they want to view.
50K order entry for a Tesla position: required margin as the headline, position value and share count, the likely profit or loss, the funds check and More Options, above the confirm button
Buy / SellThe order screen shows the required margin, position value and share count together. Changing one updates the others, so users can adjust the trade before confirming it.
50K radar: market movers, indices and a market-news card
ExploreExplore brings together market moves, price changes and news. Users can review the information and open the instruments they want to investigate.

My work covers the app, website, admin tools and shared components. I work with product and engineering on what each screen needs to show, including costs, verification requirements and order states.

Role
Senior Product Designer
Period
2022 — present
Surfaces
iOS · Android · Web · Admin · Marketing
Team
Sole designer for most of my time there; led two designers when the team expanded
01

Show consequence before commitment

Margin, exposure and likely profit or loss update while the amount can still be changed — not in a confirmation dialog once the decision is already made.

02

One question at a time

Registration and suitability became single-question steps, each saying why it is needed and how much is left. Progress stays visible, and finishing a step is acknowledged.

50K case study 8 sections · ~8 min Registration, identity verification, order entry, market data and the design system.
Read the case study

02 / Independent product / 2026 — present

SmallHeroes

Personalised children's books · Hebrew · גיבורים קטנים

Case study in progress

Personalised storybooks for children

SmallHeroes creates storybooks in Hebrew around situations a child finds difficult. A parent chooses a situation and a companion, adds a few details, and can upload a photo. The story is then written and illustrated with their child as the main character.

An open SmallHeroes book: Yuval and her mother at the clinic door with Buni the bunny beside them, and the Hebrew story text on the facing page

A finished spread from Yuval's story about visiting a clinic with Buni. The book is in Hebrew, with right-to-left text and a consistent character across the pages.

I'm building the product and designing the parent experience, book reader and delivery flow. I also define the story and visual rules, pricing and review process.

Parents pay before they see their own finished book. The experience needs to explain what they will receive, how long it takes and what happens if something needs another attempt.

Role
Founder · Product & Design Lead
Period
2026 — present
Scope
Product · UX/UI · Visual system · Story rules · Pricing · Delivery
Status
Working MVP. Preparing for a supervised pilot.
01

Show parents what to expect

Sample books help parents understand the result before paying. The flow also explains the delivery time, review process and what happens if generation needs another attempt.

02

Keep photo upload flexible

The flow accepts a range of photo quality, lighting and face sizes. Parents can also continue without a photo, with an explanation that the illustrated character may look different from their child.

03

Keep the characters consistent

The child and companion need to stay recognisable throughout the book. I check the illustrations and story before delivery.

03 / Independent product / 2026 — present

FindMe Worlds

Personalised seek-and-find game · Web · איפה אני?

Case study in progress

FindMe Worlds turns a child’s photo into an illustrated character hidden across richly detailed worlds. Children search for themselves, use hints and collect discoveries in an adventure passport. New worlds extend the journey; replay preserves earlier achievements.

Parents invite friends: “This is my world. Come find me.” Friends join without signing up and play with their own progress.

I’m the founder and lead product and design, from concept to a working MVP. I define the business model, gameplay and art direction. Parents manage creation, purchases and sharing; children get clear navigation, hints and feedback. I use AI tools for development, testing and iteration.

Role
Founder · Product & Design Lead
Period
2026 — present
Scope
Product · UX/UI · Game design · Art direction · AI workflows
Status
Working MVP · Private testing
01

Personalisation that belongs in the world

The aim is to keep the child recognisable while matching the scene’s style, lighting and scale. I define generation and review rules to support that balance.

02

A personal game that welcomes others

Sharing stays under parent control. Families see who participated, their search progress and chosen response. Friends’ games leave the child’s achievements and passport unchanged.

Earlier work

Before the trading platform, I worked on an investing app, mobile apps, games and 3D. These projects cover interface design, animation, art direction and production in Unity.

042022 — 2023 · Product Designer · Where 50K began

Invest

Long-term investing · Mobile

A long-term investing app with ready-made plans and custom portfolios.

More on Invest

Users could choose a plan or build a portfolio by selecting instruments and setting how much to put into each one. The app supported one-off and monthly deposits and showed portfolio projections.

I worked on the product from the initial flows and UI through launch and later updates. After about a year and a half, the company shifted from long-term investing to margin trading. Our team continued with the new product, 50K.

Product designSpecificationUX/UILaunchMaintenanceFintech
Screens show sample data.

052020 — 2022 · Product Designer · 12Tech

TOKast

Short-form podcast app · iOS & Android

A mobile app for short podcast episodes.

More on TOKast

At 12Tech, I designed three social and content products. TOKast was a short-form podcast app, with a feed for finding episodes, playback controls and creator profiles.

I worked on the listening flow and the interactions around audio. The app launched with established Israeli creators and journalists.

Audio UXFeed designCreator toolsMotioniOS · Android

062020 — 2022 · Art Director & Design Lead · Part-time, partner

Ready Steady Games

Indie games, mobile and PC

Art direction and UI design for mobile and PC games.

More on Ready Steady Games

I was a partner in the studio and worked on visual direction and interfaces across its games. The work included environments, effects, characters and UI.

I also built and checked interfaces in Unity with the developers. It was a part-time role alongside my product design work.

Phantom Beasts – Redemption is available on Steam. View it on Steam.

Art directionKey artUnityGame UIVFXPhotoshop · After Effects
Phantom Beasts – Redemption
Summoners Royale

072017 — 2020 · 3D Generalist → UI Artist · NO GAME

United Legends

Competitive card-battler

A competitive card game with heroes based on different countries.

More on United Legends

I started as a 3D generalist, working on modelling, rigging, texturing, animation and rendering. I brought the characters and environments into Unity and worked on how they appeared in the game.

In my final year, I moved into UI and redesigned progression, the arena and the shop. The game later closed. It is a project I can discuss in terms of both the design work and the commercial outcome.

3D · MayaRigging & animationTexturingRenderingGame UIEconomy & progressionUnity

About me

I started in 3D and games, then moved into interface and product design. I still use that background when I work on visual hierarchy, animation and interface details.

At 50K, I first designed a long-term investing app, and now design the company's margin trading platform. My work includes the mobile app, website, internal tools and design system.

I prototype in HTML and CSS and work on Flutter UI. Being involved in implementation helps me check the details and fix issues before release.

I'm also building SmallHeroes, a personalised storybook product in Hebrew. I use AI tools for exploration, prototyping and development, and review the result myself.

I've also led two designers and mentored a designer moving from marketing into product design.

Selected experience
2026 — now

SmallHeroes

Founder · Product & Design Lead

2022 — now

50K

Senior Product Designer · Fintech

2020 — 2022

Ready Steady Games

Art Director & Design Lead · Partner

2020 — 2022

12Tech

Product Designer

2017 — 2020

NO GAME

3D Generalist → UI Artist

2016 — 2017

Freelance

3D Artist · Games and technology

Full CV
What I bring

Product design

User flows, UX, UI, prototypes and design systems.

Implementation

HTML, CSS and Flutter UI. I work with developers on implementation and check the interface before release.

Visual design

Motion, 3D, art direction and illustration.

Get in touch

I'm open to senior product design roles and selected product collaborations.