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Senior Product Designer and Lead Designer with 8 years of multidisciplinary design and 2.5 years leading end-to-end UX/UI for a B2C fitness challenge app. Works fully remote from Amsterdam, owning product design, design system, brand, and growth across mobile and web, and contributing to shipping production code and websites with an AI-native workflow. Drives measurable outcomes across monetisation and engagement—improving challenge entry flows, building a scalable Figma design system across iOS and Android, and leading Apple HealthKit / Google Health Connect integrations. Also leads brand and acquisition creative output including app store support, landing pages, and lifecycle email/social systems.…Senior Product Designer and Lead Designer with 8 years of multidisciplinary design and 2.5 years leading end-to-end UX/UI for a B2C fitness challenge app. Works fully remote from Amsterdam, owning product design, design system, brand, and growth across mobile and web, and contributing to shipping production code and websites with an AI-native workflow. Drives measurable outcomes across monetisation and engagement—improving challenge entry flows, building a scalable Figma design system across iOS and Android, and leading Apple HealthKit / Google Health Connect integrations. Also leads brand and acquisition creative output including app store support, landing pages, and lifecycle email/social systems.

Charles Jensen

Product Designer, UX Designer, UI Designer, +2

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Senior Product Designer and Lead Designer with 8 years of multidisciplinary design and 2.5 years leading end-to-end UX/UI for a B2C fitness challenge app. Works fully remote from Amsterdam, owning product design, design system, brand, and growth across mobile and web, and contributing to shipping production code and websites with an AI-native workflow. Drives measurable outcomes across monetisation and engagement—improving challenge entry flows, building a scalable Figma design system across iOS and Android, and leading Apple HealthKit / Google Health Connect integrations. Also leads brand and acquisition creative output including app store support, landing pages, and lifecycle email/social systems.…Senior Product Designer and Lead Designer with 8 years of multidisciplinary design and 2.5 years leading end-to-end UX/UI for a B2C fitness challenge app. Works fully remote from Amsterdam, owning product design, design system, brand, and growth across mobile and web, and contributing to shipping production code and websites with an AI-native workflow. Drives measurable outcomes across monetisation and engagement—improving challenge entry flows, building a scalable Figma design system across iOS and Android, and leading Apple HealthKit / Google Health Connect integrations. Also leads brand and acquisition creative output including app store support, landing pages, and lifecycle email/social systems.

Available to hire

Senior Product Designer and Lead Designer with 8 years of multidisciplinary design and 2.5 years leading end-to-end UX/UI for a B2C fitness challenge app. Works fully remote from Amsterdam, owning product design, design system, brand, and growth across mobile and web, and contributing to shipping production code and websites with an AI-native workflow.

Drives measurable outcomes across monetisation and engagement—improving challenge entry flows, building a scalable Figma design system across iOS and Android, and leading Apple HealthKit / Google Health Connect integrations. Also leads brand and acquisition creative output including app store support, landing pages, and lifecycle email/social systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Lead Designer (Product, Design System, Brand & Growth) at Hardcore Harry's

February 1, 2026 - Present

Owned end-to-end product design from sketched wireframes to live launch on the App Store and Google Play for an iOS/Android fitness challenge platform. Led UX/UI and design system work for a small cross-functional team (iOS, Android, backend) across time zones using Figma reviews, developer handoff, and release cadence. Drove monetisation and engagement improvements via iterative UX across feed, Explore, and My Challenges. Built and maintained a Figma design system (87 components, 601 variants) powering hundreds of live screens and reducing friction with a single source of truth across platforms. Directed Apple HealthKit and Google Health Connect integrations to automate activity import and anomaly-flagged verification. Led growth and brand outputs including paid social, email lifecycle, web landing pages, and app store creative support.

Lead UX / UI Designer at Hardcore Harry's

August 1, 2023 - January 31, 2026

Provided end-to-end UX/UI direction for the product across iOS, Android, and backend while acting as the sole designer for the company. Produced user flows and information architecture, including stage-based challenge progression systems across multiple disciplines. Built and refined key platform areas that supported monetisation and engagement, and executed design and dev handoff to ensure consistent release delivery. Supported product and growth through iterative UI improvements and integration design, collaborating closely with engineers to ship features continuously.

Digital Designer and Strategist at Get Going

September 1, 2022 - August 31, 2023

Launched Hardcore Harry's as a new brand from zero (alongside founders), creating brand identity, a marketing site, paid social systems, and early app concept work that later became the foundation for the standalone product. Elevated digital design across web, marketing, and social to align with growth targets. Established design and content workflows between marketing and product teams to unblock weekly campaign output, focusing on middle-aged Australians and NDIS clients, including people not comfortable training in a public gym.

Graphic Designer (Digital Out-of-Home) at QMS Media

January 1, 2022 - August 31, 2022

Designed digital OOH campaigns across a national network for advertisers including Kia and Mercury Marine. Adapted creative across multiple aspect ratios and resolutions while meeting tight broadcast ad deadlines.

Graphic Designer (Magazine and Publication Design) at Empirse Group

December 1, 2020 - December 31, 2021

Designed print and digital editorial layouts for Tradeaboat and Caravan World, producing magazine spreads, advertising features, and editorial covers on a monthly publication cycle.

Graphic Designer (Advertising) at Advertising Associates

October 1, 2019 - September 30, 2020

Produced digital and print advertising assets for Australian campaigns for clients including Kia and Mercury Marine. Worked alongside copywriters and account managers under agency timelines, supporting concept-to-delivery for marketing creative.

Founder & Lead Designer at Jensenhouse

January 1, 2018 - Present

Independent design practice concurrently based in Melbourne and Amsterdam, delivering brand identity, web design, motion, photography, and editorial work for clients including 121 Group, Chunky Move, Asahi, Dance Flaws, Blend, and Ikigai Records.