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I'm a UX/UI designer with ~20 years in digital products, mainly mobile games and consumer apps. I design end-to-end: problem framing → flows → interaction patterns → motion → design systems → production-ready specs / Unity scenes and prefabs. I run research at scale (remote configs, PlaytestCloud, live tests, focus groups) and iterate with funnels/cohorts and A/B tests to lift FTUE, readability, and retention. I also understand the business side—user acquisition, market research, and marketability tests—so decisions are product- and marketing-aware. Formally trained in graphic design; I apply typography, color theory, and grid systems to keep interfaces readable and consistent. I'm comfortable with Unity/engine contexts and collaborate with engineers to ship robust experiences.…I'm a UX/UI designer with ~20 years in digital products, mainly mobile games and consumer apps. I design end-to-end: problem framing → flows → interaction patterns → motion → design systems → production-ready specs / Unity scenes and prefabs. I run research at scale (remote configs, PlaytestCloud, live tests, focus groups) and iterate with funnels/cohorts and A/B tests to lift FTUE, readability, and retention. I also understand the business side—user acquisition, market research, and marketability tests—so decisions are product- and marketing-aware. Formally trained in graphic design; I apply typography, color theory, and grid systems to keep interfaces readable and consistent. I'm comfortable with Unity/engine contexts and collaborate with engineers to ship robust experiences.

Štěpán Fiala

UX Designer, UI Designer, Game Designer, +2

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I'm a UX/UI designer with ~20 years in digital products, mainly mobile games and consumer apps. I design end-to-end: problem framing → flows → interaction patterns → motion → design systems → production-ready specs / Unity scenes and prefabs. I run research at scale (remote configs, PlaytestCloud, live tests, focus groups) and iterate with funnels/cohorts and A/B tests to lift FTUE, readability, and retention. I also understand the business side—user acquisition, market research, and marketability tests—so decisions are product- and marketing-aware. Formally trained in graphic design; I apply typography, color theory, and grid systems to keep interfaces readable and consistent. I'm comfortable with Unity/engine contexts and collaborate with engineers to ship robust experiences.…I'm a UX/UI designer with ~20 years in digital products, mainly mobile games and consumer apps. I design end-to-end: problem framing → flows → interaction patterns → motion → design systems → production-ready specs / Unity scenes and prefabs. I run research at scale (remote configs, PlaytestCloud, live tests, focus groups) and iterate with funnels/cohorts and A/B tests to lift FTUE, readability, and retention. I also understand the business side—user acquisition, market research, and marketability tests—so decisions are product- and marketing-aware. Formally trained in graphic design; I apply typography, color theory, and grid systems to keep interfaces readable and consistent. I'm comfortable with Unity/engine contexts and collaborate with engineers to ship robust experiences.

Available to hire

I’m a UX/UI designer with ~20 years in digital products, mainly mobile games and consumer apps. I design end-to-end: problem framing → flows → interaction patterns → motion → design systems → production-ready specs / Unity scenes and prefabs. I run research at scale (remote configs, PlaytestCloud, live tests, focus groups) and iterate with funnels/cohorts and A/B tests to lift FTUE, readability, and retention.

I also understand the business side—user acquisition, market research, and marketability tests—so decisions are product- and marketing-aware. Formally trained in graphic design; I apply typography, color theory, and grid systems to keep interfaces readable and consistent. I’m comfortable with Unity/engine contexts and collaborate with engineers to ship robust experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Czech

Fluent

English

Advanced

Work Experience

UX Designer at Geewa

June 1, 2022 - October 2, 2025

Owned UX/UI for multiple live titles: FTUE, meta/economy, inventory/collection, and shop. Delivered motion-aware interactions and consistent state handling. Created durable component libraries/design systems; converted assets to Unity scenes/prefabs and implemented interactions & animations in Unity. Conducted research & experimentation: PlaytestCloud, focus groups, live tests; set up analytics events, funnels/cohorts; executed A/B tests. Collaborated with growth on UA creatives and marketing tests; integrated market and monetization context into design decisions.

Solo Designer & Developer at Letter Fair

January 1, 2017 - Present

Designed the entire product: game design, UX design, UI design, motion, asset creation, and implementation in Unity (assets → reusable prefabs/screens with proper states). Built levels, established pacing curves and difficulty tuning; iterated structure based on Playtest data. Instrumented analytics and iterated UI/UX across FTUE; created marketing assets including multiple video ads and store creatives. Ran constant A/B tests using remote config + feature flags to validate onboarding, copy, and layout; conducted PlaytestCloud studies and moderated live UX tests; translated findings into concrete updates.

UX Designer at Notre Game

June 1, 2025 - Present

Redesigned core-game readability; simplified interaction patterns to improve onboarding. Led UX for meta-game pivots: loot boxes monetization, ability redesign, and shop flows. Analyzed user stories & funnel data (Firebase/BigQuery) to propose UX changes that improved FTUE clarity and early retention. Conducted remote usability tests with PlaytestCloud; synthesized findings into prioritized design changes.

UX/UI Designer at Geewa

June 1, 2022 - October 2, 2025

Owned UX/UI for multiple live titles: FTUE, meta/economy, inventory/collection, and shop. Implemented motion-aware interactions; built durable component libraries and design systems; converted assets to Unity scenes/prefabs and implemented interactions & animations in Unity. Conducted research & experimentation: PlaytestCloud, focus groups, live tests; set up analytics events, read funnels/cohorts; executed A/B tests. Collaborated with growth on UA creatives and marketing tests; brought market and monetization context into design decisions.

UX Designer (Remote, embedded with PeopleFun) at AppLovin

June 1, 2022 - October 2, 2025

Projects: Tanks & Troops prototype; designed meta-game loops (progression/economy), shop; built interactive prototypes; produced assets; participated in internal playtests; captured observations, synthesized insights, and provided feedback. Helped validate UX flows through experimentation and iterative design.

UX Designer at Good Friend Games

November 1, 2022 - Present

Defined player flows for onboarding/FTUE, core-game, progression, and shop; authored interaction patterns and emotional hooks to improve readability and completion. Built a Figma design system (components, variants, tokens) and shipped production-ready specs with redlines; exported as Unity scenes/prefabs for a smooth handoff. Ran remote usability tests (PlaytestCloud) and in-person sessions; synthesized insights into design changes and acceptance criteria. Instrumented analytics and analyzed funnels/cohorts; ran A/B tests. Collaborated daily with engineering/product; led design QA to ensure parity and motion timing/easing.

UX Designer at Notre Game

June 1, 2025 - Present

Leading design for One Fight Arena project; focused on core UX flows and meta-game mechanics; collaborated with team to ensure clear onboarding and compelling progression.

UX Designer at Good Friend Games

November 1, 2022 - Present

Defined player flows for onboarding/FTUE, core game, progression, and shop; built a Figma design system with components, variants, tokens; shipped production-ready specs with redlines; exported as Unity scenes/prefabs for smooth handoff. Ran remote usability tests and synthesized insights into design changes and acceptance criteria. Instrumented events and analyzed funnels/cohorts (Firebase/BigQuery) and ran A/B tests. Collaborated daily with engineering/product; led design QA to ensure spec parity and motion timing/easing.

Solo Designer & Developer at Letter Fair

January 1, 2017 - Present

Designed the entire product: game design, UX design, UI design, motion, asset creation, and implementation in Unity (assets → reusable prefabs/screens with proper states). Designed & built all levels; established pacing and difficulty curves; iterated structure based on playtest and funnel data. Instrumented analytics; iterated UI/UX multiple times using funnel/cohort reads; improved clarity, guidance, and click paths across FTUE and meta loops. Created all marketing assets including multiple video ads and store creatives. Ran constant A/B tests using UG Remote Config + Game Overrides to validate onboarding, copy, and layout changes. Conducted PlaytestCloud studies and moderated live UX tests; turned insights into concrete interaction and content updates.

UX Designer at Notre Game

June 1, 2025 - Present

Redesigned core-game readability and simplified interaction patterns to reduce confusion and lift onboarding funnel. Led UX for major meta-game pivots: Loot Boxes monetization, Ability redesign, and Shop redesign — flows. Analyzed user stories & funnels from analytics events (Firebase/BigQuery) and proposed UX changes that improved FTUE clarity and early retention. Ran remote usability tests on PlaytestCloud; synthesized findings into prioritized design changes.

UX/UI Designer at Geewa

June 1, 2022 - October 2, 2025

Owned UX/UI for multiple live titles: FTUE, meta/economy, inventory/collection, and shop. Delivered motion-aware interaction patterns and consistent state handling. Created durable component libraries/design systems; converted assets to Unity scenes/prefabs and implemented interactions & animations in Unity. Ran research & experimentation: PlaytestCloud, focus groups, live tests; set up analytics events, read funnels/cohorts, and executed A/B tests to guide iterations. Collaborated with growth on UA creatives and marketability tests; brought market/monetization context into design decisions.

UX Designer at AppLovin

June 1, 2022 - October 2, 2025

Designed meta-game loops (progression/economy, shop), card collection UI, and Web3 marketplace concept for Tanks & Troops prototype; produced flows, IA, and state charts. Built interactive prototyping (advanced components, variants, variables, animation previews) to validate interactions and edge states. Participated in internal playtests with teams; captured observations, synthesized insights, provided feedback. Remote collaboration with teammates.