chudarin.com
Sergey Chudarin

Sergey Chudarin

Product Designer
Design Lead

Russia, Moscow

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"Everything I see is created by people" → Read about me

Now Open to work! 🔥

Past Grothex, Zerion, RetailCRM and many more

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Grothex ✦ Billion and Krabo

How I brought AI into the work on Billion and Krabo: from a voice note to connected user flows in Figma. My concepts, System G and the UX pattern documentation became the foundation the agents work from. In onboarding and wallet creation we widened the coverage of scenarios and states and handed engineering a fuller design.

PeriodMar 2026 — Sep 2026
RoleLead Product Designer
AreasProduct design, user flows, System G, AI agents in design
ProductsBillion, Krabo, System G
ToolsFigma MCP, Plugin API, Claude Code, AI skills
Grothex case study preview

Zerion ✦ Web3 Wallet

Contributed to Zerion's evolution into a comprehensive Web3 wallet by enhancing the trading experience, streamlining wallet and asset management, and introducing growth systems and new platforms such as the browser extension.

PeriodJun 2021 — Nov 2025
RoleSenior Product Designer
ScopeUI/UX Design, User Research, Prototyping, Design System
Case StudiesTrading Feed, Navigation Redesign
InvestorsWintermute, Coinbase, Alchemy, Placeholder, Mosaic
Zerion Case Preview

RetailCRM ✦ SaaS Platform

Led a full UX and brand transformation for a platform serving over 15,000 global e-commerce clients. Built and scaled the design department, created Omnica Design System, and redesigned core modules including orders, catalog, analytics, and settings.

PeriodApr 2019 — Jun 2021
RoleHead of Design Department
ScopeUI/UX Design, Design System, Team Building
Case StudiesOmnica Design System
Metrics15,000+ global clients, 2.8M+ monthly orders, 45,000+ active users
RetailCRM Case Preview
chudarin-design-skills · Claude Code · MIT

My design agent for Figma. A plugin for Claude Code.

Seven skills: the agent builds on your components and variables, or picks type and palette with you. Plans flows, builds screens and slides, writes text.

7 and more years ago

Archive of earlier design work

Freelance

Mar 2011 — Apr 2019 • UI/UX Designer

Designed multiple products including educational portals, tv set-top box players, billing and security systems, admin panels, marketplaces, cybersecurity dashboards and R&D projects. Maintaining and optimizing product interfaces. Helped with MVP launches for early-stage startups.

Clients: Skolkovo, Six Flags, Sber (School 21, Sber Graduate, Next Steps, Sber Secure), Beeline, IVI, Megogo, ITTD, SurfSecure, DiodSecure, TelePub, Design.AG, Skipp.pro

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FarPost

Jun 2015 — Oct 2018 • Product Designer

Designed multiple products including doctor search, mobile goods marketplace, professional search, kindergarten queue exchange, vacation booking, and events calendar. Worked in high-load environment with ≈1.5M users/day, ≈40M views/day, 200+ servers.

Products: MedService, SpecService, and other internal services

Frumatic

Jun 2014 — Jun 2015 • UI/UX Designer

Designed web application for creating, collecting, and sharing stories. Set up visual system, typography, grid, and UI-kit. Ensured handoff to development with specifications, interactive prototypes, and quality control. Prepared marketing materials for early launches.

Panzar, Studio

Oct 2011 — Jun 2014 • Graphic Designer

Designed in-game UI for PANZAR AAA online game (settings, inventory, lobby, matchmaking). Created game website, personal account, billing system, visual identity, promo graphics, and marketing materials for RU/EU markets. Improved registration conversion and player retention through A/B testing.

ADV/web-engineering

Apr 2011 — Oct 2011 • Web Designer

Worked at top-3 agency in Russia, supporting and developing major brand websites. Designed new pages, sections, promo landing pages, banners, animations, and technical interfaces.

Clients: Akado, Alrosa, Econica, Gazprom‑Media, Komatsu, LUKOIL, LUKOIL Overseas, VTB Capital, VTB24, Panasonic, Disney, Nezavisimost (Land Rover, Volvo)

Giper Group

Apr 2010 — Mar 2011 • Web Designer

Designed Mosenergosbyt website with personal account, bills/payments, and service pages. Developed websites, promo materials, print designs, and payment portals including GiperMoney (Qiwi analog) and EasyPay with logos, landing pages, and email templates.

Clients: Mosenergosbyt, GiperMoney, EasyPay

Latest posts

All posts →

Signs of a Toxic Culture

· 9 min

Constant urgency, favoritism, and no room to grow: how I recognize a toxic workplace and the excuses that make it easy to overlook.

Agent, open Figma

· 11 min

Skills for creating and editing screens in Figma with your agent, using your product’s design system, and for writing text that doesn’t read as generated. How the bundle works and where to start.

Accept without edits (recommended)

· 11 min

It’s easy to accept an agent’s suggestion. Getting it to consistently suggest what you need takes more work. Here’s how I evaluate its decisions, work through mistakes, and gradually build a way of working that needs fewer explanations and revisions.