
Krispin Stock
Verified Expert in Design
Product Designer
Rijeka, Croatia
Toptal member since September 30, 2019
Krispin designs products at the structural level, from the system underneath rather than the surface above. Over almost 15 years, he has designed AI platforms in enterprise, government, and conversational AI, and taken products from zero to one with full design systems at every breakpoint. He also runs AI as production infrastructure, directed under written rules so the work stays reviewable and repeatable. Sectors include cybersecurity, healthcare, biotech, fintech, and retail.
Portfolio
Work Experience
Product Designer
Triskele Labs
- Ran the engagement on an AI-directed production system, with Claude Max as the execution environment and every analysis document, diagram and wireframe produced under direction.
- Authored a versioned operating rule set, v3 through v6 and reaching 59 rules, governing how the model produced, checked and logged every artefact in the engagement.
- Directed and approved every wireframe build section by section, converting each model error into a new standing rule rather than a one-off correction.
- Specified the wireframe cleaning method in full, from named class removal and shell width correction through height measurement to background reset, and had it applied to every file.
- Audited the information architecture of the live site, a two-tier navigation carrying roughly 55 to 60 items across four top-level sections, most of them inside one Solutions mega-menu.
- Benchmarked the architecture against the LevelBlue site and rebuilt the as-is tree from three reconciled versions of the client's URL-mapping spreadsheet.
- Delivered page wireframes as clean HTML and PNG at 1440px, annotated in a side panel with numbered per-section references for review and handoff.
- Wrote a white-label IA diagram and text-tree rule set out of the engagement, including a page type taxonomy defining what exists at handoff.
Art Director
Astraeus
- Delivered a brand identity that entered a market of 22,000 uniform competitors. The website launched and business opportunities opened.
- Built the identity from zero. The client held an investor deck and a positioning intent, with no visual system, no material language and no creative infrastructure.
- Built a five-layer production system running from client input through strategic framework, asset definition and prompt development to final production.
- Extended a three-act material progression across website, blog, video and motion assets, brand guidebook and social media without drift between surfaces.
- Documented the system in a brand guidebook recording every decision, defining every rule and specifying every surface.
- Directed every asset from prompt to final output using Claude Max, Midjourney, Affinity Designer and DaVinci Resolve AI. No stock, no templates.
Product Designer (via Toptal)
Anthony Graffia
- Designed a web app platform as a part of Toptal Teams, which increased the sales of its users by up to 60%.
- Acted as the lead product designer both in the discovery and execution phases, building the platform from 0-1.
- Designed a highly modular design system with modular content nesting in order to simplify and reduce navigation.
- Created personas, user flows, task flows, navigational structure, wireframes, prototypes, and final designs ready for quick development implementation.
- Collaborated closely with other members in a fast-paced but well-organized Toptal team.
UI Designer (via Toptal)
Garn Enterprise (Hong Kong) Limited
- Translated web designs into the mobile experience, translating web patterns and interactions into a mobile-friendly approach.
- Collected product requirements by collaborating with the web designer.
- Updated and cleared up part of the design system components.
UI Designer
STL Hockey Training LLC
- Redesigned interactions and user flows, leveraging the client's wireframes and translating overarching concepts into a refined end-to-end product adaptable across various platforms, including web, desktop, and mobile.
- Created a dark theme UI to adhere to industry norms and delivered a modular design system, ensuring seamless development and a swift market launch within the dynamic startup landscape.
- Gathered insights through expert interviews and comprehensive requirement collection.
- Improved user experience by thoroughly revamping low-fidelity wireframes.
UX/UI Designer
Centre for Biodiversity Genomics, University of Guelph - Main
- Designed the sitemap of the existing portal to assess the current navigation structure, analyzed all types of data, and conducted a simple UX audit. Mapped main pain points and issues with the current design from a functional and structural perspective.
- Conducted expert interviews and worked closely with scientific experts from the University of Guelph (CA) in order to grasp the scope and potential legacies.
- Redesigned the informational architecture for both portal and workbench, streamlining drill-downs through the taxonomy levels.
- Designed modular components to ensure consistency, enable rapid prototyping, and create a design system to streamline development handoff.
- Redesigned main screens using Bits components and created additional accessibility improvements to the existing components like galleries, maps, various data visualizations, and graphs.
- Redesigned user journeys for the blog and other sections that might include external links and platforms.
Product Designer (via Toptal)
Vital Network Inc.
- Created the 0-1 MVP of a SaaS platform to support, coach, and educate staff in school systems across the USA.
- Served as the design lead in the discovery phase, conducting multiple expert user interviews to comprehend the essential roles—vital coach, district leader, and school leader—and to define features for both the MVP and future iterations.
- Created proto personas to articulate specific role needs, user journey flows, and information architecture. Developed a modular design system to ensure consistency and speed of iteration and created prototypes to convey and test the concepts.
- Conducted rapid prototyping sessions to test and iterate various concepts and approaches.
- Created a modular design system of components ready for development.
- Created designs and annotations (documentation) for future releases.
Product Designer
Correlated
- Designed a proof of concept (POC) for an innovative AI-powered healthcare app focused on physiatric self-assessment and rehabilitation tracking.
- Prototyped a solution swiftly to provide the client with a clearer insight into how their business idea could be translated into software.
- Conducted secondary research to enhance competitor analysis and identify market opportunities.
- Used an approach and rapid prototyping in order to iterate and build solutions quickly.
- Prepared developers' handoffs with annotations to better explain subtle interactions.
UX/UI Design Lead
Maxeon - Main
- Designed monthly and weekly email templates showcasing solar panel performance data, energy consumption breakdowns, and ecological footprint information, accompanied by various data visualizations.
- Developed proto-personas derived from the client's prior research.
- Conducted several user interviews and suggested design enhancements based on the findings.
UX/UI Designer
PD4 Solutions
- Designed a POC for AI-powered B2B SaaS digital platforms for US government agencies.
- Created multiple prototypes to test and validate features.
- Established a modular design system comprising adaptable components to facilitate rapid iterations.
- Designed a sleek and cohesive dark theme user interface (UI) aligned with the client's branding vision.
UX/UI Designer
Teamwork
- Developed sophisticated scheduling interactions for multiple professional roles, facilitating seamless coordination through a healthcare SaaS B2B platform.
- Iterated on multiple scheduling feature prototypes swiftly, refining functionality and user experience.
- Enhanced company communication and product management strategies, improving efficiency and collaboration.
Product Designer
Swaypay
- Developed user flows encompassing the entire user experience for an MVP release of a B2C mobile app that enables users to earn cashback from well-known brands by converting TikToks.
- Restructured and refined a design system, crafting modular UI elements to facilitate rapid and iterative prototyping.
- Gathered and organized stakeholder requirements efficiently, ensuring clear understanding and alignment throughout the project.
UI Designer
Peppermint, Inc.
- Developed a comprehensive system of UI design components for a B2C platform-as-a-service (PaaS) with a strong focus on ensuring accessibility as a key priority.
- Established clear guidelines for illustrations and iconography, emphasizing accessibility considerations.
- Enhanced interactions and layouts iteratively based on existing wireframes, aiming to optimize the user experience.
UX/UI Designer
Optimal Ship
- Designed a comprehensive end-to-end B2C2B SaaS suite consisting of digital tools for quoting, shipment preparation, and tracking, catering to both US and international markets.
- Led the digital transformation of clients' services by focusing on product design, ensuring a seamless transition into the digital space.
- Conducted expert interviews to gain deep insights into the business and user challenges that required resolution, gathering essential requirements for feature design.
- Developed user journeys, user flows, and user personas to inform the design process.
- Built prototypes and conducted online usability testing, utilizing Heap Analytics, Hotjar, and questionnaires to gather valuable insights. Iterated on usability improvements based on research findings.
- Facilitated C-level meetings to gather feedback and insights on business needs and domain expertise.
- Established and maintained a design system and responsive modules to support rapid iterations and prototyping.
- Designed various online tools and touchpoints, ensuring a cohesive user journey across all platforms.
- Developed a marketing website as an entry point into the user journey.
- Revamped branding and created a system of illustrations to complement the new design aesthetic.
Senior Product Designer
Rhetoric
- Designed an MVP of a B2C SaaS AI communication tool from scratch.
- Led an end-to-end design process from discovery and requirements collecting to prototyping and development handoff.
- Prototyped and iterated the product concepts rapidly.
- Prepared prototypes for usability testing, including AI content creation. Iterated them based on feedback.
- Collaborated closely with developers to deliver handoffs rapidly.
Senior Product Designer
Techem
- Designed a sophisticated SaaS B2B data visualization dashboard catering to diverse energy consumption patterns in the Scandinavian region, enabling effective monitoring and analysis.
- Created and refined wireframes and prototypes for the dashboard, ensuring optimal user experience and intuitive navigation.
- Gathered and organized comprehensive business and technical requirements, providing a solid foundation for the development process and ensuring alignment with stakeholders' needs.
UI/UX Designer
Manuel Concepcion
- Conducted a thorough UX analysis of existing wireframes, identifying areas for improvement and implementing iterative enhancements as necessary.
- Developed a comprehensive design system to ensure consistency and efficiency in the UI design of the mobile app.
- Collaborated closely with stakeholders to collect requirements and gather valuable insights for enhancing wireframes and aligning them with project objectives.
- Utilized rapid prototyping techniques to create solutions and iterated them based on valuable user feedback, ensuring optimal user experience.
UI/UX Mentor
Springboard
- Mentored aspiring individuals on their path to pursuing a career in UI/UX, offering personalized guidance and support throughout their journey.
- Provided feedback to students, helping them gain a deeper understanding of UX and UI design principles and equipping them with practical methods to enhance their skills.
- Facilitated successful career transitions for students by providing job search assistance, networking opportunities, and industry insights, resulting in their successful placement in their first UI/UX roles.
UX/UI Designer | Data Visualization Expert
Stratanomics
- Designed a POC SaaS B2B dashboard specifically tailored to monitor strata spending trends, provide valuable insights, and facilitate data-driven decision-making.
- Developed a medium-fidelity prototype to effectively test and validate the key concepts and functionalities of the dashboard, ensuring a seamless user experience.
- Created a comprehensive UI library and visual guidelines, incorporating existing branding elements to maintain consistency and align the design with the overall brand identity.
Product Designer
iCIMIS
- Collaborated as a product designer to seamlessly integrate an AI engine into an established SaaS B2B recruiting platform, catering to the needs of top-tier companies like Microsoft.
- Ensured the consistency and relevancy of the design system library by actively maintaining and updating it, optimizing the efficiency and cohesiveness of the platform's user interface.
- Demonstrated strong leadership skills by collecting and organizing requirements effectively while providing guidance and mentorship to a junior UI/UX designer, fostering their professional growth and contributing to the team's success.
Senior UX Designer
Undabot
- Organized and conducted workshops and UX design sessions, facilitating collaborative learning and fostering a culture of design thinking within the organization.
- Collaborated in co-creating compelling offers and pitches, actively participating in pitch sessions with international clients to effectively communicate the value and potential of the design solutions.
- Presented a talk as a distinguished speaker in Sketch Talks, an esteemed event held in Zagreb, sharing valuable insights and experiences with fellow design professionals and enthusiasts.
- Earned a Design Sprint certification from a workshop organized by the 2Amigos group, led by Ross Chapman from Etch Horizon, further enhancing expertise in facilitating design sprints and driving efficient product development.
- Demonstrated leadership skills by organizing and leading a small design department, overseeing design projects and processes, and defining effective design workflows to ensure high-quality deliverables.
Senior UX/UI Designer
Trikoder
- Played a key role in the development of the largest marketplace platform in the region, contributing to its growth and success.
- Led a small design team, overseeing project delivery and ensuring efficient velocity within Scrum sprints, resulting in timely and high-quality deliverables.
- Fostered effective collaboration with back-end and mobile developers, product owners, and scrum masters, fostering a cohesive and cross-functional team environment.
- Organized client workshops to gather insights and requirements, leveraging them to create a robust design system that enhanced consistency and scalability across the platform.
- Obtained certifications in the user journey, omnichannel, and lean UX through renowned education programs offered by the Normal Nielsen Group in Amsterdam and Copenhagen, furthering expertise in customer-centric design practices.
- Spearheaded in-house UX design education workshops, enabling the agency to enhance its design capabilities and cultivate a design-driven culture.
- Created and maintained a comprehensive design system for both iOS and Android platforms, ensuring consistent visual and interaction patterns across multiple devices.
- Executed and prepared designs for seamless handoff to development teams, ensuring clear communication and smooth implementation of design solutions.
UX/UI Designer
Dixero
- Collaborated with a team of designers to create a mobile music app explicitly catered to the Italian market, delivering an engaging and tailored user experience.
- Played an integral role as a member of the remote R&D team at Dixero, contributing to the research and development efforts to enhance product offerings and meet customer needs.
- Utilized my creative skills to create visually appealing vector illustrations for an in-app quiz, enhancing user engagement and adding a delightful touch to the overall experience.
UI and Brand Designer
JollyDeck
- Led the redesign of the JollyDeck brand, revitalizing its visual identity across digital and print advertising materials, resulting in a cohesive and impactful brand presence.
- Designed the user interface (UI) for the dashboard of a SaaS B2B learning platform tailored for corporate onboarding and learning, ensuring an intuitive and engaging user experience.
- Developed a learning tool leveraging gamification principles, enhancing user engagement and promoting effective knowledge acquisition through interactive and immersive experiences.
Designer of Visual Communications, Print and Digital
Mayer McCann
- Designed both digital and print advertising campaigns and websites for international clients.
- Created digital and non-digital illustrations for various projects.
- Held presentations and pitches with various clients.
Designer of Visual Communications
Kabinet01
- Created several brand identities in both digital and print mediums.
- Designed a website nominated as a site of the day on Awwwards.com.
- Created mostly digital illustrations for various projects.
- Held presentations and pitches with various clients.
Education
Master's Degree in Visual Communications
University of Ljubljana - Ljubljana, Slovenia
Courses in in Print Graphics, Painting, Sculpting
Academy of Applied Arts - Rijeka, Croatia
Certifications
Design Sprint
2Amigos Consulting
Lean UX and Agile
Nielsen Norman Group
Customer Journeys and Omnichannel UX
Nielsen Norman Group
Skills
Tools
AI Tools
Other
Data Visualization, Remote Usability Testing, Mobile Apps, Digital Branding, Design Leadership, Project Estimation, Personas, Mobile Prototypes, Competitor Analysis & Profiling, Feature Analysis, Workshop Facilitation, Interaction Design (IxD), Mobile UI, Usability Testing, User Flows, User Research, MVP Design, Project Planning, Branding, User Experience (UX), Product Design, UI Design, Mobile Design, Web Design, Web App Design, Dashboard Design, UX Audits, Dashboards, Rapid Prototyping, Lean Startups, Design Systems, Agile Sprints, Agile UX, Agile, UX Strategy, User Journey Maps, Customer Journey, Design Strategy, Design Workshops, SaaS Design, B2C, UX Flows, Design Reviews, Journey Mapping, Wireframe to Product, Mobile App Design, Competitive Analysis, User Journeys, User Testing, Component Libraries, Web UX Design, Complex Web Systems, Enterprise SaaS, B2B, SaaS, Cross-platform UX, UX Wireframes, Stakeholder Engagement, Brand Design, Creative Direction, Market Research & Analysis, User Personas, Responsive UX Design, Enterprise, Leadership, Business Strategy, Brand Guidelines, Rapid Interactive Prototyping, Sitemaps, Ideation Workshops, Product Discovery, Product Strategy, UX Specifications, Stakeholder Interviews, Artificial Intelligence (AI), User Experience Design, UX Testing, Interactive Dashboards, B2B2C, Enterprise Design, Startups, Big Data, Data Virtualization, Remote User Testing, Accessibility, AI Design, Educational Portals, Software as a Service (SaaS), Big Data UX Design, UX Writing, Audits, Enterprise Software, Discovery, Web Platforms, Data-driven Design, Accessible Design, Business to Business (B2B), UX Review, Data Analytics, Artificial Intelligence as a Service (AIaaS), AI-powered Product Design, Agentic AI, Team Leadership, A/B Testing, Brand Books, Analytics, Augmented Reality (AR), Generative Artificial Intelligence (GenAI), UX Documentation, Voice User Interfaces (VUI), UX Workshops, Service Design, Interviews, Proof of Concept (POC)
Experience
- Web App Design - 10 years
- B2C - 8 years
- Design Systems - 5 years
- Rapid Prototyping - 5 years
- Product Design - 5 years
- SaaS Design - 4 years
- Agentic AI - 1 year
- AI Tools - 1 year
Tools
- AI Tools
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