Sergei K.
UX/UI Product Designer | SaaS, AI Apps, Fintech, Healthcare, PropTech
Senior UX/UI product designer for SaaS, fintech, healthcare and real-estate platforms. Top Rated Plus, 100% Job Success, $200K+ earned. Open to long-term, full-time roles. I make complex, regulated products easier to use. Real results: a clinical workflow cut from 12 steps to 5 (−58%), passenger boarding time halved from 2:40 to 1:20, manual report data entry down 80% with AI document recognition, +40% customer satisfaction on a scheduling SaaS, +35% retention on a two-sided talent platform. I design with AI end to end: brief analysis, information architecture, clickable prototypes and ready HTML pages with Claude Code, Figma AI and Google Stitch, so your team can test the real flow in days. 10+ years · 70 client reviews · KYC and identity-verification flows, clinical dashboards, multi-device hospitality UX. Core expertise 👉 SaaS & Platforms: dashboards, CRM and internal tools for logistics and operations. 👉 Fintech: KYC and identity-verification flows, onboarding funnels, real-estate closing and transaction flows. 👉 Healthcare: pharmacovigilance dashboards, clinical workflows, telehealth apps. 👉 AI Products: AI document recognition, AI-assisted workflows, AI-built prototypes. 👉 Real Estate & E-commerce: listing and syndication platforms, luxury marketing sites, checkout UX. What I deliver: UX/UI design · web and mobile app design · SaaS dashboards · design systems · UX audits · user flows and wireframes · interactive prototypes · user research · developer-ready Figma handoff. I work well embedded in agency and product teams, from first call to final handoff. Hiring for a long-term role? Message me with your product and the hours you need. I'll reply within a day.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $2.8k
Billed in all: $204,988$205k
$934 in the last 6 months
Across 85 contracts
Earnings, last 30 days
Skill rankings: Top 16% in Mobile UI Design
Ranked by MRR among everyone on Upwork with the skill.
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- #496UX Research2,772 freelancers · 🇺🇦 #103Top 18%🇺🇦#103 of 398
- #665Wireframing3,877 freelancers · 🇺🇦 #148Top 17%🇺🇦#148 of 608
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