Alexander Tsibulski
Verified Expert in Design
Designer
Tallinn, Estonia
Toptal member since June 28, 2016
Alexander is an experienced UI/UX designer who has played founding designer roles in multiple startups, shaping the initial vision, architecture, and design systems that power their products today. He focuses on AI, B2B SaaS, and zero-to-one product development, bringing structure and clarity to complex ideas.
Portfolio
Indigo Backoffice — eCommerce Operations Platform
Qeam — Gamify Your Work
GUI for Geographic Information System
Work Experience
UI/UX Designer
Pixelrein GmbH & Co. KG
- Designed and shipped multiple AI-driven features, introducing new interaction patterns that reduced task completion time and improved user adoption across key workflows.
- Led UX experimentation for AI capabilities, running structured prototypes and A/B validations that uncovered high-impact patterns later adopted as core product standards.
- Standardized AI UI patterns, defining how prompts, suggestions, inline actions, autonomous flows, and system responses should behave across the product.
Head of Design
Rhino
- Designed and evolved core UX patterns for Rhino’s extraction, classification, and UAN workflows, enabling users to navigate complex multi-step processes with greater clarity and reducing task friction across the platform.
- Led iterative experimentation for new AI-powered features, including guided extractions and domain-aware suggestions, validating interaction models that improved user accuracy and reduced manual steps by an estimated 25–30%.
- Expanded and maintained the product’s Design System, introducing new components, tokens, and documentation that increased design-to-development alignment and accelerated feature delivery across multiple teams.
UI Designer
Testimonial IQ Inc
- Designed and implemented a streamlined UX flow for gathering and publishing client testimonials, enabling advisors to integrate feedback collection into their workflow and support the platform’s compliance-ready positioning.
- Refreshed and expanded the Design System to include new components and tokens suited for testimonial workflows, reducing development turnaround by approximately 25% and improving UI consistency across modules.
- Conducted rapid prototype experiments of AI-powered review request patterns and assessed user behaviour, resulting in a validated interaction model that increased testimonial submission rates by around 15%.
UI/UX Designer
CADD Microsystems, Inc.
- Revamped customer portal offering and enhanced capabilities for efficient course and software license management.
- Established a comprehensive design system, resulting in heightened consistency and cohesiveness across our projects.
- Developed a well-defined product redesign roadmap, providing a clear strategic direction for our product enhancement initiatives.
Senior Interaction Designer
Tofu
- Designed the entire product foundation for Tofu’s AI-powered outbound platform, defining the UX architecture, visual language, and core interaction patterns used across all product modules.
- Created the first Design System, including tokens, components, and UI principles, enabling engineers to ship new features 2–3x faster and ensuring product-wide consistency from MVP onward.
- Built end-to-end user flows for Campaign Builder, Contacts, Variables, Personalization, and Reporting modules, reducing the time to launch a new campaign by defining a streamlined, frictionless UX.
- Collaborated directly with founders to shape the product vision, refine feature prioritization, and translate early conceptual ideas into production-ready UI and prototypes.
- Developed UX patterns for AI-assisted workflows, including content generation, multi-step campaign creation, variable insertion, and error-handling around invalid data inputs.
- Increased usability of complex multi-step processes by introducing standardized form structures, table patterns, and conditional logic UI, reducing onboarding friction for non-technical users.
Senior Product Designer
Logitech
- Worked as part of the design team and built operating system versions of the Collab operating system, Logitech's ecosystem for tablet devices, created for seamless meeting scheduling and calling.
- Spearheaded consistent design improvements, ensuring a seamless and visually appealing user experience across different operating system versions.
- Actively contributed to continuous design improvements, ensuring a seamless and intuitive interface for meeting scheduling and calling functionalities.
Senior Product Designer
Apollo.io
- Spearheaded efforts to enhance existing features by conducting thorough research and applying user-centered design principles. Additionally, I took charge of designing new features and patterns that aligned with the company's vision and goals.
- Built a robust design system from the ground up. This involved creating reusable components, establishing design guidelines, and ensuring seamless integration with the existing application.
- Established design validation processes such as user testing and usability studies. By conducting these tests and gathering insights, I effectively validated design decisions and iterated on features to ensure they met user needs and expectations.
Staff Product Designer
Connect Plus Information Technology Co LLC
- Revamped the user interface across key business-and-consumer portals, delivering high-fidelity mockups that increased interface consistency and reduced customer support escalations by an estimated around 20%.
- Led rapid experimentation of new AI-driven self-service flows (e.g., dynamic billing suggestions, automated troubleshooting prompts), guiding concept validation and translating winning patterns into production-ready designs.
- Updated the design system to incorporate fresh tokens, modular components, and accessibility upgrades, enabling engineering teams to launch new features 30% faster and maintain a unified brand experience.
Education
Certificate in Graphic Design
British Higher School of Art and Design - Moscow, Russia
Specialist's Degree (Bachelor's Equivalent) in Software Engineering
Moscow State University of Technologies and Management - Moscow, Russia
Skills
Tools
Zeplin, InVision, Sketch, Adobe Experience Design (XD), Adobe Photoshop, Principle, OmniGraffle, Adobe Illustrator, GIS, Figma Make, Visual Editor, Editor X
Platforms
iOS, Android, Figma, Web, Mobile, Webflow
Industry Expertise
Hotels & Lodging
Other
Annotated Wireframes, Dashboards, CRM Systems, UI Design, Visual Design, SaaS, User Interface (UI), UX Design, Mobile UX, Product Design, Interactive Design, Digital Design, Marketplace Design, MVP Design, B2B, Web App Design, Responsive Web Design (RWD), Tailwind CSS, App UI, Graphical User Interface (GUI), Complex Application User Interfaces (UI), UIKit, Style Guides, UI Style Guides, Tablet UI, Inventory, Inventory Management, CRM Design, Website CMS, Enterprise Resource Planning (ERP), SaaS Monitoring, SaaS Design, Dashboard Design, Management Systems, Minimalism, Airport Transportation, Aviation, Aviation Projects, Business Aviation, Brokerage, Pharmacy, Complex Web Systems, HR Tools, Internal Apps, Intercom, Graphic Design, Typography, Web Design, Web Applications, Responsive Web Apps, Web App UI, Framer, ChatGPT, AI SaaS, Design Systems, Seos, Enterprise SaaS, Prototyping, Software as a Service (SaaS), UI Prototyping, Layout, React, UiPath, Minimum Viable Product (MVP), New Products, AI Art Generator, eCommerce
Experience
- Interactive Design - 20 years
- User Interface (UI) - 20 years
- SaaS - 20 years
- UX Design - 20 years
- Figma - 15 years
- Dashboards - 15 years
- MVP Design - 13 years
- Product Design - 12 years
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