About
Denys Didenko is a Product Designer specializing in cohesive, user-centered digital experiences across
enterprise software, web platforms, and mobile applications. His work is grounded in usability,
interaction clarity, design systems, and scalable product thinking across complex ecosystems.
Over the past 5+ years, Denys has contributed to products in B2B SaaS, healthtech, consumer mobile,
fintech, and deep-tech contexts. His experience includes enterprise analytics and AI-enabled
decision-support platforms such as Maxa and Parafoil; healthtech products focused on cancer-screening
workflows, including Kāhu and Semidal; and
aerospace communication design for Neuraspace. He has also worked on consumer and growth-focused products
such as PlayFitt and
Essembl, where he led
UX improvements across onboarding, engagement loops, and assistant-led experiences. Across client-delivery
work, he has supported conversion-focused initiatives such as North Star and product quality improvements for
high-traffic experiences like Globe Soccer.
In parallel with commercial product work, Denys has contributed to public-interest and accountability
initiatives in Ukraine, including T4P (Tribunal for Putin) and the Kharkiv Human Rights Protection
Group (KHPG). For these initiatives, he designed digital and visual systems that support
human-rights
documentation, information accessibility, and legal-accountability communication in high-stakes contexts.
Experience
Product Designer, Parafoil • Contract
Mart 2025 – Present
- Designed leadership analytics dashboard and admin console (seats, roles, permissions) for managers and enterprise teams.
- Created a design system with 100+ modular components and variables.
- Standardised design-to-dev handoff from Figma to React/Tailwind using dedicated tickets, edge cases, and behaviour specs.
- Validated onboarding flows through internal interviews and high-fidelity interactive prototypes.
Lead Designer, Juvenilia • Self-employed
Jun 2021 – Present
- Shaped products across healthcare, fintech, aerospace, and sports industries.
- Redesigned North Star online presence and service-discovery experience, contributing to a client-reported +500% inbound-lead increase and Awwwards recognition.
- Shipped clinician-facing product for Kāhu, MoleMap's AI division, translating dermatoscope images into AI-assisted lesion assessment, used by 100+ clinics.
- Conducted UX audit and post-launch review for Globe Soccer Awards, improving mobile navigation and voting flows for a platform that reached 100M+ votes and 1.5M app downloads.
- Redesigned Essembl's AI fashion app across iOS and Android, improving onboarding, retention mechanics, and assistant-led styling at the scale of 750k+ users and 1.5M+ downloads.
Product Designer, Maxa • Full-time
Nov 2024 – Sep 2025
- Designed Maxa Analyst (0-to-1), verifiable Finance/Ops analysis with row-level traceability back to ERP sources.
- Built the design system with hundreds of modular components, variables, table and chart standards, states, and usage documentation.
- Created Harmonisation Engine that supports multiple users, entity deduplication with clustering, and side-by-side comparison.
- Designed UBDM inspector to trace sources, validate transformations, and surface tailored business rules that drive computed metrics.
- Ran UX research and usability tests on interactive prototypes to reduce friction and improve usability.
Product Designer, PlayFitt by IntelliSports • Part-time
Jun 2022 – Nov 2023
- Designed AI gamified iOS fitness app with Apple Watch and HealthKit, featured on the App Store on Jul 27, 2022, driving +220% traffic.
- Built a production design system with 1000+ modular components, variables, semantic colors, and detailed annotations using branching/version control.
- Designed partner-specific in-app experiences and campaigns for collaborations with Apple, Ubisoft, the Montreal Canadiens, MILA, and BCFG.
- Led accessibility overhaul with Dynamic Type scaling table, iOS HIG alignment, and size caps to prevent truncation and layout breaks.
- Led an A/B-tested redesign of onboarding, paywall, and retention loops; achieved NPS of 70 and a 4.7 App Store rating across 10,000+ reviews, with top-1% retention.
UI/UX Designer, ScrumLaunch • Full-time
Jul 2020 – Jun 2021
- Delivered end-to-end UI and UX for startup products with complex B2B workflows, creating design systems and handoff standards.
- Taught internal teams Figma workflows (Auto Layout, components, libraries) to standardise execution and improve handoff quality.
- Designed accessibility-first mobile flows for Seven (senior social puzzle), improving engagement by 30-35% through clearer navigation and cognitive load reduction.
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