versionicon linkedin
April 2020 - March 2021

"Unleash the thrill of premium raffles with PrizeJar™ - the online raffle powerhouse. This cutting-edge platform serves up an exhilarating array of high-stakes raffles and covetable giveaways. From dream cars and exotic getaways to the hottest tech and VIP experiences, PrizeJar™ lets you pursue life's greatest prizes through its seamless, secure interface."

Product | UX & UI Design | Brand design
Posted: 02/04/2021 - 5 minutes read

Chapter 0

The Intro

Triple Star Media contracted me to create a greenfield internet raffle product line. The entire project from start to finish took about 5 months. The team was 100% online, spread from the Philippines, Australia, Poland and The UK.

In the end, I’ve created three brands. Prize Jar, Prize Monkey, and Prize Stars. The first two are very similar, but you can learn more about The Prize Jar here:

all brands

Three brands one desing system

Right from the gecko

My responsibilities were:

My responsibilities were:

Design system and lingo

I worked with developers from start to finish, I guided them and created reviews

Brand mascot design and animation

I designed and animated the Brand Mascot “The Bear”

Same Height Control
Investor decks

I worked on investors decks

CRM communication 

I created generic e-mails and guidelines for future iterations

UX and UI design

I designed all userflows: onboarding experience, registration journey, purchase journey and retention experience to name just a few 

Market research

I conducted market research and applied that knowledge to my design

Same Height Control
Logo and brand IDs

I created brand logos, a stylebook and guidelines

Marketing guidelines

I created a visual language, tone of voice, social media post and guidelines

Chapter 1
The Process
The Process


I started with research, and I found many similar products on the market.

The team pointed out some key features they wanted to implement.

Referral programme.

Must be possible to invite a friend and get bonus points in return.

Bonus Points

For an e-mail address and newsletter subscription.

Same Height Control

Mobile First

the desktop had a lower priority


(Card, PayPal, SMS, Pay By Mobile, Apple Pay)


mobile-only based registration. Cookie and mobile SIM-card-based user identification.


Product specification
Product specification

We didn’t have any market data or developed personas. I gathered my info from stakeholders and competitor websites. My assumptions were:

bullet icon

This is a product for the general population with an average IQ of 90-100, appealing to both genders but because the mascot will be a bit more feminine. That was our goal, as we did have data to work with.

bullet icon

The product must be easy to digest and similar to online retailers like (Amazon, Asda, Argos etc. )

bullet icon

Must be similar to existing products like ITV Win, Raffolux, Omaze etc… (It was a product team requirement)

bullet icon

Visual language must be simple. No mixed signals or hidden messages. Simple in this case means function and usability over visuals.


I sketched to visualize user flows and to have an idea of which parts I needed to cover and in what order.

I sketched a user flow on paper, scanned, and shared it with a team via Miro. After a few iterations, we’ve moved to Figma.

Onboarding / KYC

user journey%201

Registration and 1'st purchase journey

01 Process

The design


I developed a simple-clickable prototype and communicated the importance of saving the link for collaborative work. Ensuring alignment among team members was a priority for project efficiency.

To prepare for a design system, I started planning out components, patterns, and variations ahead of time. This proactive strategy was aimed at saving time by setting up the basics for future development.

Components in Figma - WIP

placeholder image

Registration journey

placeholder image

The design

Design System

With key components of the design system already established, I organized the system into distinct categories, including measurements and CSS styles, facilitating efficient delivery across multiple brands.

Before the development, I informed the team that:

bullet icon

Everything is modular and nested

bullet icon

I used Fibonacci numbers

bullet icon

If something has 27pixels is more likely 30pixels

bullet icon

If typography is without a style = mistake

bullet icon

If colour is without a style = mistake

bullet icon

And a few more - But that was my approach



To expedite development, I generated comprehensive documentation.

Fragment of documentation
Design System-03modal winnersform fields

Creating this documentation proved to be more time-effective than investing additional hours with developers later on. Rather than producing a separate document, I integrated it seamlessly into the main template, ensuring continuity within our overarching system rather than introducing a new standalone element.


Prize Jar is a monotone brand with a yellow as an accent. Sometimes we can use it as a duo-tone.

01 Process
Part two
Brand and a Bear..
Brand and a Bear..

Making of the bear

The Logo

The team requirements were:

Must be appealing to everyone

Must be all about fun

Same Height Control

Must have soft look and vibe

I’ve created eight versions of the logo. Very important for me was to keep the logo readable, as the only place where it will be available on the nav-bar (about 50px height). 

01 Process

Tested Versions

01 Process

Picked Logo

We did limited focus groups and we’ve found that that the simplest logo was a winner and red was the colour of choice

01 Process

We also tested colour and Red was a clear winner


I used Nunito for H1 to H7 and Nunito Sans for everything else below the H7 line

Nunito is a well balanced sans serif typeface superfamily, with 2 versions: The project began with Nunito, created by Vernon Adams as a rounded terminal sans serif for display typography. Jacques Le Bailly extended it to a full set of weights, and an accompanying regular non-rounded terminal version
01 Process

Typography page from my guidelines


The Bear

I created this character to support the brand. My main goal was to use it as “an emotion device” to signal important events like “waiting”, “win”, “surprise” and others.

I also created a font with all his emotions. It was useful for marketing, presentations, etc. I sent this font to everyone involved.

Bear and all his emotions

01 Process

It’s alive!



Example animations to support a user engagement and attention during the loading time or to point a user in the right direction.

monkey loading
placeholder image

User is waiting for KYC verification

Thumbs Up-Wink-2-20percent
placeholder image

Payment confirmed thumbs-up!

Part Three
Part There
The Development
Part There
The Development

I was involved in the development, reviewing developers’ progress, writing review documents. 

Developers were pleased with my documentation.

I’ve heard many times that my comments and reviews were clear and easy to follow.

An example of a design, a review document. 
prize jar-review-02

UX Services

My work on Prize Jar didn't finish with a launch. The company involved me in many improvements and tweak projects. like:

User Win Sharing and Winners panel/functionalities

New Registration Journey

New Brands

An example of such a project: “Categories"

Sketches from the process

placeholder imageplaceholder image
placeholder image
placeholder image


The most important


From day one, our goal was to be as transparent as possible, that’s why we’ve picked Trustpilot as our go-to-trust-platform. 

Trust is a part of the “promise” message of this product and there is always not-enough what we can do to build it.

It was a true joy to read all comments of our users. In moments like this I know why I love this job :)

placeholder imageuser feedback-02user feedback-04user feedback-06user feedback-08
placeholder imageuser feedback-03user feedback-05user feedback-07user feedback-09


The gallery

All brands used the same design system.

Brand One

Prize Jar

desk mobile-01
Mob 03

The Competition Entry Point

Mob 06

Mobile Verification

01 Process

Purchase Panel

Mob 04

Bonus For E-mail

01 Process

Mobile Number Entry

01 Process

Opt-In Pop-up

Brand Two

Prize Stars

placeholder image
01 Process

Game Entry

Mob 04


Mob 04

User Panel With Entries

01 Process


01 Process

Payment Confirmed

prize stars-mob16

New Ended Game Panel

Brand Three

Prize Monkey

placeholder image
01 Process

Game Entry

Mob 04


Mob 04

User Panel With Entries

The Outcome

It was a great project to work on. We've achieved a lot in a short period. It was fantastic to work with a senior and experienced team. 

Recent 2019-2023


This section contains the selection of my best past projects

SEP 2023

Heavy Duty Challenge

"I crafted the brand and GUI for Heavy Duty Challenge game, ensuring a seamless user experience through rigorous testing and UX refinement."

UX | UI | Brand 

AUG 2021


"I led the creation of an innovative internet competition platform, establishing design systems, UI, and UX. Continuously providing design support, I've been integral to the ongoing success of this brand."

UX | UI | Brand

OCT 2019

B2B & B2C

“I crated s design system and managed 12 casino brands, collaborating with the front-end head to create a Sketch plugin for faster production. I also conducted user tests and served as the primary UX resource company-wide."


MAY 2018

Gamification features

"I conducted research and designed gamification features across our company's product portfolio, collaborating with cross-functional teams to enhance user engagement and overall experience."


SEP 2016

Lottery Syndicates

"I directed the research and design of a green-field syndicate lottery app, overseeing the entire process from initial research to MVP design. This case study exemplifies my approach to app design."


bullet icon

● My articles - learn more

● My Fonts - learn more

● My LinkedIN - learn more

JUN 2018

Slingo Boom HTML5 Game

"I directed the research and design of a green-field syndicate lottery app, overseeing the entire process from initial research to MVP design. This case study exemplifies my approach to app design."

Playstation | PC | Xbox

Product design

Older projects

+5y  Old

This section contains the selection of much older projects just for the reference


+6 years old works

may 2015


GUI design, animations and art for company’s flagship product 



Geonomics GUI design

I was Art Directing creation of skins for company’s instant win games 



+10 years old projects

aug 2013


Game UI And UX


may 2012

Brainstorm iOS app

New product line design and service


jan 2012


New product line design and service


JUN 2009

iOS game

New product line design and service



Areas Of Interest



Some Animations For The US Based Companies


lottery item

JULY 2020

Nathaniel 19
free font for all

As an experiment I had created a freeware font for all designers


lottery item


MY Art &

After Hours, 
My Art and Hobby


lottery item
Logo A

Copyright 2024 - Adam Jedrzejewski - All Rights reserved.
All product names, logos, and brands are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, logos, and brands does not imply endorsement. Adam Jedrzejewski - London-based product designer portfolio. Available for short and long-term contracts.