⭐️⭐️⭐️⭐️⭐️ Top 1% Expert-Vetted Web Developer on Upwork 📍 No short-term projects 📞 Kick-off with the team is mandatory 🧨 Available for a quick project start ★ Top-100 Service Provider by Clutch ★ $500M+ Raised by clients ★ 99+ International Awards ★ 15+ years of expertise (NOKIA, OPERA, OPPO, UDEMY, AUTH0, etc.) 👋 Hi, I'm Sergii! I'm a senior front end web developer, React developer, web developer, full stack developer Next.js specialist, and front end developer React with 10+ years of experience building SaaS platforms, AI products, eCommerce solutions, and custom web applications. Over the years, I've helped launch 100+ products using React, React NextJS, Next.js, and modern JavaScript frameworks. As a web app developer and SaaS developer, my work combines technical architecture, front-end engineering, and product thinking to create scalable applications that deliver measurable business results. 🏆 Why Clients Work With Me ✔ 100+ React, React Next, and Next.js projects delivered ✔ 50+ fully launched SaaS, AI, fintech, and eCommerce products ✔ $500M+ raised by companies I've supported ✔ 20+ long-term Upwork clients ✔ 30+ Shopify and Shopify Webflow projects completed ✔ Mobile and web products used by thousands of daily users ✔ 10+ years as a front end developer React specialist building high-performance interfaces 🚀 Core Expertise Front-End Development React As a front end developer React, react developer, front end web developer, and front end designer, I've built modern interfaces for startups, enterprise software, and high-growth SaaS companies that succeed. Using React, React NextJS, Next.js, TypeScript, Tailwind, and modern UI frameworks, I develop scalable products focused on performance, accessibility, and maintainability. My front-end architecture has helped companies reduce load times, improve conversions, and accelerate development with reusable component systems. React & Next.js Development I've delivered 100+ React and Next.js applications, including SaaS platforms, dashboards, marketplaces, AI tools, and enterprise software. As a front end developer React, React developer, and full stack developer Next expert, I build SSR applications, SEO-friendly architectures, scalable APIs, and reusable design systems that support long-term product growth as a full stack web developer and SaaS developer. Mobile App Development I also specialize in mobile app development using React Native, helping companies launch scalable cross-platform applications. As a mobile app developer, I've delivered products for healthcare, fintech, logistics, education, and SaaS companies -- from mobile app design and architecture to deployment and optimization. My experience includes React Native Mobile applications and React Native Full Stack solutions connected to cloud infrastructure and modern APIs. Shopify & Webflow I've completed 30+ Shopify and Shopify Webflow projects, helping brands improve customer experience, storefront performance, and conversion rates. As a Shopify front end developer, I build custom themes, Shopify Hydrogen storefronts, headless commerce solutions, and modern eCommerce experiences. I also work with Webflow teams to bridge design and development through scalable implementations and performance optimization. AI & Python As a front end developer React and Python specialist, I've contributed to AI-powered SaaS products featuring OpenAI integrations, vector search, intelligent chat interfaces, workflow automation, and custom dashboards. My experience combines Python APIs, LLM technologies, automation workflows, and modern SaaS architecture to build AI products that scale. 💻 Technology Stack React • React Next • React NextJS • Next.js • React Native • React Native Mobile • React Native Full Stack TypeScript • JavaScript • Node.js • NestJS • Express • Fastify Shopify • Shopify Webflow • Webflow • WordPress MongoDB • PostgreSQL • MySQL AWS • Google Cloud • Azure Tailwind • Storybook • Redux • GraphQL 📈 Proven Experience During 10+ years as a front end web developer and front end developer react, I've helped startups and enterprise businesses launch products from MVPs to enterprise SaaS platforms. More than 100 React and Next.js applications have been successfully delivered with a focus on scalability, clean architecture, and long-term maintainability as a web developer, web app developer, and full stack web developer. I've completed 30+ Shopify and Shopify Webflow implementations as a Shopify front end developer React, creating custom storefronts, headless commerce experiences, and conversion-focused user journeys. 💎 Whether you need a front end developer React, Shopify front end developer React, React Native Full Stack developer, mobile app developer, web developer, web app developer, SaaS developer, full stack web developer, Webflow expert, or full stack developer Next.js partner, I'd be happy to discuss your project!

👋 Hi! Need a UI UX designer Figma specialist for a high-converting UI design, a scalable SaaS product, or a full UI UX web design rebuild? My team and I bring 15+ years as a UI UX designer Figma specialist, with 600+ UI UX, UI design, and product design projects delivered for startups, SaaS companies, fintech, healthcare, and global brands. As a senior UI UX designer Figma expert, I build intuitive digital products that balance business goals, user needs, and measurable growth. ⭐️⭐️⭐️⭐️⭐️ TOP 1% Expert-Vetted UI UX Designer & Web Designer on Upwork ★ #1 Design Agency on Clutch ★ #1 UI UX Agency on Dribbble Worldwide ★ 99+ International Design Awards ★ Trusted by NOKIA, OPERA, OPPO, UDEMY, COREL, AUTH0, and more 🏆 Why Clients Choose Our Team ✔ 13 years of experience as UI UX designer Figma and Web Design expert ✔ 600+ UI design and product design projects completed ✔ 400+ UI UX web design projects: websites, SaaS products, dashboards & mobile apps ✔ 200+ Figma design systems and prototypes delivered ✔ 100+ Webflow and Webflow UI UX projects launched ✔ 80+ Shopify UI UX projects completed for eCommerce brands ✔ 50+ senior specialists across design, branding, development & strategy ✔ UI design & UX improvements lifting conversions up to 45% ✔ UI UX web design redesigns cutting bounce rates up to 35% I'm co-founder at Halo Lab, an award-winning team of UI UX designer Figma specialists combining UI UX design, web design, branding, and development. Our graphic designers, logo designers, product designers, website designers, web developers, and app developers work together to ship world-class digital products. 🚀 What We Do 📌 UI UX Design & Product Design As a UI UX designer Figma specialist, I've designed dashboards, marketplaces, AI tools, enterprise platforms, and mobile apps used by thousands worldwide. Our process combines UX research, user flows, wireframing, prototyping, and usability testing to turn raw UI design into products that improve engagement, retention, and adoption. As an experienced UX researcher, I study user behavior before a single screen is drawn. 📌 SaaS, Fintech, Healthcare & AI Products 120+ SaaS interfaces delivered, including CRMs, analytics dashboards, AI platforms, and internal tools. Our UI UX fintech work covers payment systems, investment platforms, and Web3 products where trust and usability are critical, plus healthcare UI UX for medical platforms and patient portals. As a UI design specialist for AI & fintech, I turn complex workflows into intuitive experiences. 📌 Shopify UI UX & eCommerce Design 80+ Shopify UI UX projects focused on higher conversion and smoother customer journeys. As a Shopify UI UX specialist and UI UX designer Figma expert, I optimize navigation, product discovery, mobile UX, and checkout flows so brands earn more with less friction. 📌 UI UX Web Design & Website Design 400+ UI UX web design projects across SaaS, healthcare, fintech, education, gaming, and eCommerce. As a Figma website designer, I create scalable interfaces balancing modern aesthetics with conversion-focused performance, with every build rooted in usability and responsiveness. 📌 Branding & Visual Design Our graphic and logo designers craft visual identities that strengthen brands across every touchpoint: logo design, brand identity systems, UI graphics, and marketing assets. 🔧 Design Process & Technology Every project opens with research, strategy, and UX planning. User interviews, competitor analysis, and usability testing surface opportunities before design begins. Working as UI UX designer Figma experts, we've built 200+ design systems, prototypes, and scalable interface libraries that streamline developer collaboration. Our Figma-to-HTML workflow ensures clean implementation across Webflow, Shopify, WordPress, and custom stacks. As a Figma Webflow designer, I've launched 100+ Webflow websites pairing strong UI UX web design with conversion-focused systems. 💡 Recent Win For a B2B SaaS platform, a full UI design overhaul and Figma-driven UI UX web design rebuild, delivered by our UI UX designer Figma team, lifted trial-to-paid signups from 90 to 240 per month (+167%) while cutting onboarding drop-off by 42%. 📈 Data-Backed Results ✅ 45% higher conversions after UI UX web design redesigns & UX research ✅ 35% lower bounce rates from cleaner UI design & information architecture ✅ 30% faster delivery using reusable Figma design systems & components ✅ 99+ design awards across UI UX, product, and web design work 🏥 Healthcare portals · 🏦 Fintech & Web3 dashboards · 🛒 Shopify eCommerce · 📊 SaaS & AI platforms 🔥 Whether you need a UI UX designer Figma specialist, UI design expert, UI UX web design lead, SaaS UX designer, Shopify UI UX specialist, Figma designer, or healthcare UI UX consultant. Let's build something that performs.

👋 Hi there! Need a UI UX designer Figma specialist for a high-converting UI design, a conversion-focused UI UX web design, or a full website rebuild? I'm co-founder at Halo Lab, and over 15+ years our team has delivered 400+ UI UX web design and UI design projects as senior UI UX designer Figma specialists. I create digital products that balance business goals, user behavior, and measurable growth. ⭐️⭐️⭐️⭐️⭐️ Top 3 Web Designer & UI UX Designer Figma Specialist on Upwork ★ #1 Design Agency on Clutch ★ #1 Agency on Dribbble Worldwide ★ 99+ International Design Awards ★ Trusted by NOKIA, OPERA, OPPO, UDEMY, COREL, CREATIVE MARKET, AUTH0 🏆 Why Clients Work With Us ✔ 400+ UI UX web design and UI design projects completed ✔ 200+ Figma design systems built by our UI UX designer Figma team ✔ 100+ Webflow projects delivered ✔ 80+ Shopify UI UX projects completed ✔ 120+ SaaS dashboards, AI tools & business platforms designed ✔ UI design & UX improvements lifting conversions up to 45% ✔ UI UX web design redesigns cutting bounce rates up to 35% ✔ Deep SaaS, fintech, healthcare & AI expertise 🚀 Core Services 📌 UI UX Web Design & Website Design As a UI UX designer Figma specialist, I create UI UX web design that combines strategy, strong UX, and conversion-focused thinking. From startup landing pages to enterprise platforms, every UI design is built to improve engagement, trust, and business performance. As a Figma website designer, I turn ideas into scalable interfaces optimized for desktop and mobile. 📌 UI UX Design & Product Design Our team has designed hundreds of SaaS platforms, mobile apps, dashboards, and marketplaces. As a UI UX designer Figma expert, I improve adoption and retention through UX research, wireframing, prototyping, usability testing, and design systems, turning raw UI design into intuitive interfaces that simplify complex user journeys. 📌 Shopify UI UX & eCommerce 80+ Shopify UI UX projects improving customer journeys, mobile shopping, and checkout performance. As a Shopify UI UX specialist and UI UX designer Figma expert, I reduce friction and lift conversions through research-backed UI design decisions. 📌 SaaS, Fintech, Healthcare & AI Products 120+ dashboards, business platforms, AI products, and internal tools delivered. Our UI UX fintech work spans payment platforms, investment products, and financial dashboards where usability and trust are critical, plus healthcare UI UX for health-tech products and patient portals. As a UI design specialist for AI & fintech, I turn complex workflows into intuitive experiences that support growth. 📌 Branding & Visual Design Our graphic designers and logo designers build visual systems that strengthen brand identity across every product: logo design, branding systems, marketing assets, and UI graphics. 📈 Results Clients See ✅ Up to 45% higher conversions after UI UX web design redesigns ✅ Up to 35% lower bounce rates through UI design & UX optimization ✅ Faster delivery through scalable Figma design systems ✅ Stronger retention through user-centered UI UX web design 🔧 Process & Technology Every project starts with research. As a UX researcher, I analyze user behavior, competitors, and business objectives before design begins. Working primarily in Figma, we've built 200+ design systems and prototypes. As a UI UX designer Figma expert, I create scalable interfaces that accelerate development. Our team works closely with Webflow, Shopify, WordPress, React, HTML, and CSS developers, and our Figma-to-HTML workflow ensures pixel-perfect execution. As a Figma Webflow designer, I've launched 100+ Webflow websites pairing strong Webflow UI UX practices with scalable systems. 💡 Recent Win For a fintech SaaS platform, a Figma-driven UI UX web design rebuild by our UI UX designer Figma team lifted activation from 90 to 240 signups per month (+167%) while cutting bounce rate by 42%. 🏭 Industries ✅ SaaS · ✅ Healthcare · ✅ Fintech · ✅ AI & Automation · ✅ eCommerce · ✅ Education · ✅ Real Estate · ✅ Technology · ✅ Gaming 🔥 Whether you need a UI UX designer Figma specialist, UI design expert, UI UX web design lead, Shopify UI UX specialist, SaaS UX designer, website designer, Figma designer, or healthcare UI UX consultant, let's build a digital experience that delivers measurable results.

🚀 Want more organic traffic, rankings, leads, and revenue? As a Top 5% SEO specialist on Upwork, I turn search engine optimization into measurable growth. ★ Top 5% SEO specialist & SEO expert on Upwork ★ 80+ Positive Clutch Reviews ★ Top 5 on Google in the US ★ 99+ International Awards ★ 15+ years with clients like NOKIA, OPERA, OPPO, UDEMY, COREL, CREATIVE MARKET, AUTH0 I'm an SEO specialist, SEO expert, and SEO content writer with 15+ years in search engine optimization, Google SEO, local SEO, SEO content marketing, and conversion-focused digital marketing. I've delivered 500+ search engine optimization campaigns and 300+ SEO audits for SaaS, eCommerce, local service, marketplace, and B2B brands. 🏆 Why Clients Work With Me ✔ 500+ search engine optimization campaigns delivered as a senior SEO specialist ✔ 300+ website SEO audits & SEO keyword research frameworks completed ✔ 200+ WordPress SEO projects improving organic visibility ✔ 150+ Shopify SEO builds growing eCommerce revenue ✔ 100+ local SEO campaigns generating qualified leads via Google Business Profile ✔ 50+ YouTube SEO projects lifting video discoverability ✔ 80+ positive Clutch reviews as an SEO specialist and SEO expert ✔ Top 5 Google rankings across competitive niches 📈 Search Engine Optimization & Growth Strategy My search engine optimization process combines technical SEO, SEO content strategy, SEO keyword research, and digital marketing into one scalable growth system. As an SEO expert, I've run search engine optimization audits across hundreds of sites to uncover ranking opportunities and build long-term organic channels. SEO services: technical SEO, keyword & intent mapping, on-page and off-page SEO, Google SEO, and content planning aligned to revenue. 📍 Local SEO Specialist & Google Visibility As a local SEO specialist, I've delivered 100+ local SEO campaigns for service businesses, agencies, healthcare groups, and multi-location brands. My local SEO strategy blends Google Business Profile optimization, local SEO audits, citation management, and local link building to improve map visibility and inbound calls. Recent local SEO work has strengthened local authority and rankings across many locations. ✍️ SEO Content Writer & Keyword Strategy As an SEO expert and SEO content writer, I've produced thousands of SEO articles, landing pages, and content briefs backed by deep keyword research. My SEO content writer frameworks combine keyword research, search intent, competitor analysis, and topic clustering, so brands grow organic traffic and build scalable content engines. As a data-driven SEO content writer, I turn research into content that ranks and converts. I also provide YouTube SEO to grow video rankings and organic views. 🛒 WordPress, Shopify & Technical SEO As an SEO expert, I've completed 200+ WordPress SEO projects across Yoast, RankMath, and technical SEO improvements, plus 150+ Shopify SEO initiatives for product and category rankings. My SEO audits surface issues in indexing, Core Web Vitals, site speed, and internal linking. SEO services: WordPress SEO, Shopify & eCommerce SEO, technical SEO audits, site-speed optimization, and performance monitoring. 🔗 Authority & Local Link Building Strong rankings require authority. I run backlink acquisition, digital PR, and local link building across competitive industries to strengthen domain authority. As a senior SEO specialist, my off-page SEO combines outreach, backlinks, and local SEO signals for durable ranking growth. 💡 Recent Win A 6-month B2B SaaS SEO program grew organic traffic +140%, moved 30+ keywords into the top 3, and doubled demo requests, led by full-funnel SEO specialist strategy and SEO content writer support. 📊 Results Clients See ✔ Organic traffic up to +140% within 6 months of search engine optimization ✔ Dozens of target keywords moved into Google's top 3 ✔ More qualified leads, calls, and demo requests month over month ✔ Scalable content engines built by an expert SEO content writer 🧰 Tools I Use Ahrefs, SEMrush, Google Analytics, Google Search Console, Google Ads, HubSpot, Hotjar, CrazyEgg, WordPress, Shopify, Webflow, BigCommerce, Yoast, RankMath, and AI SEO and answer engine optimization (AEO) tools. 🎯 Who I Work With Founders, marketing leads, and agencies who want a hands-on SEO expert, not a report-and-vanish contractor. I plug in fast and own the outcomes. ❓ Quick FAQ ▸ How soon will I see results? Technical wins land in weeks; content and authority compound over 3 to 6 months. ▸ Do you write the content too? Yes. As an SEO content writer, I handle briefs, articles, and landing pages end to end. ▸ Can you audit my site? Absolutely. Every engagement starts with a website SEO audit of rankings, tech health, and competitors. ▸ Which industries? SaaS, eCommerce, healthcare, service businesses, marketplaces, and B2B. 🔥 Need a proven SEO specialist and SEO expert? Let's talk.

👋 Natalia here. I turn messy interfaces into UI design that converts. For 12+ years I've worked as a UI UX designer Figma specialist, shipping 600+ UI UX, UI design, and product design projects for SaaS, fintech, healthcare, AI, and eCommerce teams. I'm co-founder at Halo Lab, the #1 Design Agency on Clutch and a TOP 1% Expert-Vetted UI UX designer Figma specialist on Upwork. 🎯 What You Actually Get Not just screens, but measurable movement: conversions up, bounce down, onboarding smoother. Every UI UX web design decision is tied to a business number, not a trend. ✅ Conversions up to +45% after UI design & UX research ✅ Bounce rates down to -35% after UI UX web design redesigns ✅ 30% faster delivery from reusable Figma design systems 🧩 Where I Help Most ▸ SaaS & AI: 120+ dashboards, CRMs, analytics & AI platforms. As a UI UX designer Figma specialist, I make dense data feel effortless. ▸ Fintech: payment flows, investment products & financial dashboards where UI design builds trust in seconds. Deep UI UX fintech background. ▸ Healthcare: patient portals, telemedicine & health-tech, where my healthcare UI UX and UI design keep critical actions clear and safe. ▸ eCommerce: 80+ Shopify UI UX projects lifting checkout and mobile conversion. As a Shopify UI UX specialist and UI UX designer Figma expert, I remove friction, not features. ▸ Enterprise & B2B: internal tools, admin panels & complex workflows simplified into clean, usable systems. ▸ Web3 & Crypto: wallets, exchanges & dashboards where clarity and trust reduce costly user errors. 🔧 How I Work 01 Research: user behavior, competitors, and goals before a single screen. 02 Architecture: flows and wireframes that turn raw UI design into a clear journey. 03 UI UX web design: high-fidelity screens in Figma, built on scalable design systems. 04 Prototype & test: usability testing that de-risks the UI UX web design before dev. 05 Handoff: clean Figma-to-HTML so developers ship pixel-perfect. Working as a UI UX designer Figma expert, I've built 200+ design systems and launched 100+ Webflow projects as a Figma Webflow designer. 🎨 Design Principles Clarity over cleverness. Every screen earns its place. I design mobile-first, prototype before I commit, and measure impact after launch, so UI design decisions are backed by data, not taste. 🌟 Why Work With Me You get a senior UI UX designer Figma specialist plus a full Halo Lab team behind every project, so UI UX web design ships faster and stronger than a solo hire could ever manage. 💡 Recent Win A Figma-driven UI UX web design rebuild for a healthcare SaaS, delivered by our UI UX designer Figma team, took activation from 85 to 230 signups per month (+170%) and cut bounce 40%. 🏆 Proof ★ TOP 1% Expert-Vetted UI UX Designer on Upwork ★ #1 UI UX Agency on Dribbble Worldwide ★ 99+ international design awards ★ 400+ UI UX web design projects for NOKIA, OPERA, OPPO, UDEMY, COREL, AUTH0 📂 Recent Project Types ▸ SaaS analytics dashboard redesign ▸ Fintech onboarding & KYC flow ▸ Telemedicine patient portal ▸ Shopify checkout optimization ▸ AI tool interface & design system ▸ Real estate listing platform 🤝 Good Fit If You… ▸ want a UI design partner who thinks in outcomes, not decoration ▸ need a UI UX web design that survives contact with real users and real data ▸ value a designer who communicates clearly and iterates fast 🧰 Tools & Deliverables Figma design systems, interactive prototypes, responsive interfaces for desktop and mobile, and developer-ready Figma-to-HTML handoff. As your UI UX designer Figma partner, I hand over organized files, component libraries, and documentation your team can actually maintain. ❓ Quick FAQ ▸ How do we start? A short discovery call, then a scoped plan with milestones and a clear timeline. ▸ How fast? Most UI UX web design sprints run 2 to 6 weeks depending on scope. ▸ Do you work with our developers? Yes. My Figma-to-HTML handoff keeps engineering in sync from day one. ▸ Can you fix an existing product? Absolutely. Audits and UI design redesigns are a core part of what I do. ▸ Do you offer ongoing support? Yes, monthly retainers for iterative product design and growth experiments. ▸ Which time zones do you cover? My team spans several zones for near round-the-clock collaboration. Also covered: product design, SaaS UX design, website design, logo design, branding & UI graphics. 🔥 Need a UI UX designer Figma specialist, UI design expert, UI UX web design lead, Shopify UI UX specialist, or healthcare UI UX consultant? Let's build something that performs.

I am a highly organised project and change management professional with over 15 years of experience. Whether you need basic administration support or something more complex then I can support you for success.