Company

EPAM Systems, Inc.

Project Type

B2B SaaS

Role

Senior UX/UI Designer

Duration

2021-2023

Results

Promoted to Senior Designer in 1 year | Built B2R CRM app for 35k+ marketplace (35% faster onboarding) | Improved task completion by 40% | Mentored 3 Juniors | 40+ Technical interviews

EPAM Systems, Inc.

Global leader in digital transformation, partnering with Fortune 500 enterprises to deliver cutting-edge tech solutions.

Process of Work

M.Video – B2R Android Retail App

When COVID-19 halted in-store user research, I introduced Maze to enable remote feedback—cutting feedback cycles by 50% and supporting 100+ user interviews each sprint, plus monthly in-depth sessions with 10+ users. Concurrently, I redesigned the application and built a design system from scratch using the Atomic approach, ensuring designers and developers worked seamlessly together. In collaboration with business analysts, I mapped interfaces, ran weekly new-feature demos, and streamlined onboarding. The result? A unified design language, improved KPIs, and a far more intuitive user experience.

Wolters Kluwer – B2B Tax Compliance Web App

For Wolters Kluwer, I modernized a legacy tax compliance platform by migrating its UI from Angular to React, preserving brand integrity while enhancing usability.

Through competitor analysis and A/B testing, I optimized complex tax workflows, achieving a 30% improvement in task completion rates. Collaborating directly with accountants, I prototyped solutions for intricate tax logic, reducing errors by 25%. Agile reporting ensured stakeholders stayed aligned, meeting strict compliance deadlines without sacrificing quality.

AR Graffiti Finder App

This innovative AR project let users discover street art through geolocation. I designed an engaging interface with gamification elements like discovery badges, motivating exploration and cultural appreciation. By coordinating with city officials, we ensured authenticity, and by collaborating with developers, we guaranteed technical feasibility—resulting in an app praised for blending modern tech with local heritage. During this time, I worked directly with design directors and leads, which significantly boosted my skills as a Middle Designer and allowed me to adopt best practices from seasoned professionals.

Other Projects

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© 2025 Konstantin Kazarichuk – Powered by Framer CMS

Penestanan Kaja No.1, Ubud, Bali 80571, Indonesia

© 2025 Konstantin Kazarichuk – Powered by Framer CMS

Penestanan Kaja No.1, Ubud, Bali 80571, Indonesia