πŸ‘‹   Hi, I’m Simeon! I love what I do.

I’m a user experience architect with 13 years of experience and a background in mathematics. I’m currently helping businesses through the Upwork.com platform. Recently, I worked as the Lead UX Architect at SimpleBet, a company whose mission is to power the future of fan engagement.


The devil is in details. That’s why I pay pedantic attention to all details in the project. From pixel perfection to documentation layout, I strive for impeccability in everything.

Think twice, cut once. I’m a problem solver. I love hard and tricky situations, which makes me step out of my comfort zone and make a breakthrough.

Learn and teach. I learn all my life and what I love more than that is to give knowledge to people. Educating my clients in the art of user experience is an essential part of my work. Teaching my children is something else πŸ™‚


User Interface Design

Simple, clean, and organized. Consistency and familiarity are vital factors here. The design system and style guide are the right way of thinking.

User Experience Architecture

UX is all about how it feels & works in a delightful symbiosis. The key point is to start with the big picture and drill down from there. Attention to all the small details is the way to achieve perfection.

Wireframing & Prototyping

Mid, low, and high-fidelity prototypes play an essential role in my workflow. They help to visualize and test any idea rapidly, present a complicated flow, or a mobile game-like experience.

Design Strategy

Bridge the gap between business and design. I strive first to understand your business model and your goals and align them with your customers’ goals and needs.

Design Systems

Every project has a design system. Set of rules, guidelines, components, patterns, and interactions that bring consistency and scalability to the product.

User-Centered Design

The user is the king. I use methodologies and techniques to put the user in the center of the game. Empathy is crucial here and the ability to observe people and decide what they need, because they don’t know it. To practice user-centered design, you should live your life user-centric.

User Testing

I test all the time. Small, big, quick, slow – test early – gather data, iterate, move forward. Contextual inquiry is my favorite method of gathering insights how and why people act a certain way.


UX Architect

SimpleBet  /  Nov 2018 – Apr 2020

I joined SimpleBet as the first UX Architect. I worked to re-imagine the sports betting future with innovative design strategies and user experiences. I created a complete design system and implemented it successfully through all the projects in the organization.

UX Architect

KD LTD  /  Jul 2013 – Oct 2018

I worked through the upwork.com platform, creating exceptional user experiences for medium and big companies worldwide. I worked on projects from Mortgage, FinTech, Medical, Renting, and other industries.

Lead UI/UX Designer

Smiley Media / Nov 2011 – Jun 2013

I joined the Smiley Media team to create and maintain a social web browser application that generated 70k+ registered users from all over the world. I lead the design team, where we used a data-driven approach to test and iterate constantly.

Senior UI Designer

Digital Domination  /  Mar 2011 – Oct 2011

I delivered high-class design services for many Digital Domination clients. I was responsible to wireframe and design digital experiences and communicated them to our clients. I created presentational websites and small and medium web and mobile applications.

UI Designer

Novus Paradigm  /  Feb 2009 – Feb 2011

I have created web and mobile applications for Novus Paradigm clients. I was responsible for design directions, and user interface design. Projects include payment gateways, cloud services, education portals.


Technical University Varna, Bulgaria

2003 – 2009

Master, Communication Technologies

High School of Mathematics Varna, Bulgaria

1998 – 2003

BS, Informatics and Mathematics


They express what’s in the designer’s head, nothing more.

  • Sketch
  • Figma
  • Photoshop
  • Illustrator
  • Axure
  • Pen & paper
  • Dropbox
  • Premiere Pro


I am gathering the best solutions from far and wide.

  • Cyber Security
  • Insurance & Mortgages
  • FinTech
  • Expense Management
  • Social networking
  • Sports
  • Betting
  • Games
  • Medical
  • Renting
  • Automotive
  • Hydraulic fracturing

In paralel

I’m father of 2 πŸ‘§  and I’m god blessed πŸ™ with that. I love photography πŸ“Έ and filmmaking 🎬. And can’t hide my passion to cardistry ♠️  and all kind of art πŸ–Œ.

Let’s work together

Drop me a line at [email protected]

Find out what my colleagues say about me and my work.

Hire me on upwork.com or view feedback.

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