Senior Full-Stack Developer and AI & SaaS Architect with 10+ years of experience helping startups and businesses build scalable web applications, mobile apps, SaaS platforms, and AI-powered products. Over the years, I’ve worked with founders, startups, and established companies to turn ideas into production-ready software, whether that’s launching a new MVP, scaling an existing platform, building AI-powered workflows, or modernizing legacy systems. As a Top Rated Upwork professional with 25,000+ hours and 340+ completed projects, I bring both hands-on development expertise and product-thinking to every engagement. My goal is not just to write code, but to help clients make the right technical decisions, build maintainable systems, and create products that support long-term business growth. 𝗛𝗢𝗪 𝗜 𝗛𝗘𝗟𝗣 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 • SaaS Platforms & Multi-Tenant Applications • AI-Powered Products & Automation Systems • Web Applications & Customer Portals • Mobile Applications (iOS & Android) • Admin Dashboards & Internal Tools • CRM, ERP & Business Management Systems • Marketplaces & Subscription Platforms • Real-Time Applications & Collaboration Tools 𝗔𝗜 & 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗜𝗢𝗡 • OpenAI, Claude and LLM Integrations • AI Chatbots & Conversational Systems • Workflow Automation • Document Processing & Structured Outputs • Recommendation & Personalization Systems • AI-Powered Search & Knowledge Systems • Custom AI Features for SaaS Products 𝗙𝗨𝗟𝗟-𝗦𝗧𝗔𝗖𝗞 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 • Scalable Backend Architecture • REST & GraphQL APIs • Authentication, Authorization & Role Management • Multi-Tenant SaaS Architecture • Payment & Subscription Systems • Real-Time Features & Notifications • Database Design & Performance Optimization • Cloud Infrastructure & CI/CD Pipelines 𝗠𝗢𝗕𝗜𝗟𝗘 𝗔𝗣𝗟𝗜𝗖𝗔𝗧𝗜𝗢𝗡𝗦 • Cross-Platform iOS & Android Development • Real-Time Mobile Applications • Push Notifications • Offline Sync & Secure Storage • App Store & Play Store Deployments • Subscription & Payment Integrations\ 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛 𝗠𝗘 • 10+ years of professional development experience. • 25,000+ Upwork hours across long-term projects. • Product-focused mindset, not just task execution. • Strong communication and transparent collaboration. • Clean, maintainable, scalable code. • Long-term support and growth-oriented development. 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦 Frontend: React.js, Next.js, TypeScript, JavaScript, Tailwind CSS Backend: Node.js, NestJS, Express.js, Python (FastAPI, Django), PHP (Laravel) Mobile: React Native, Expo Databases: PostgreSQL, MongoDB, MySQL, DynamoDB Cloud & DevOps: AWS, Docker, CI/CD, GitHub Actions, Vercel AI & Integrations: OpenAI, Claude, Stripe, Twilio, Firebase, Third-Party APIs 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 SaaS • AI • FinTech • Healthcare • EdTech • Marketplaces • CRM • ERP • Real Estate • E-commerce • Enterprise Software Whether you need to build a new product, modernize an existing platform, integrate AI capabilities, or scale a growing SaaS application, I can help turn your requirements into reliable, production-ready software.

💻 Full-Stack Web & Mobile Development Agency | Top 1% on Upwork | $2M+ Delivered | Enterprise-Grade Builds for High-Growth Brands | High-Converting Websites & Scalable Apps We’re Y2 Systems — a senior team of developers, designers, and product strategists with 10+ years of experience delivering high-performing mobile apps and conversion-focused websites across 30+ industries. Collectively, we’ve delivered $2M+ worth of work on Upwork and supported teams ranging from startups to enterprise-level organizations (including Fortune 500 environments), building platforms that are fast, scalable, and reliable under real-world traffic and pressure. Whether you’re launching a Shopify skincare brand, building a Flutter-based wellness app, or developing a custom marketplace with React Native + Node.js, we don’t just “build features.” We help you ship a product that’s stable, clean, and ready to grow. 🛠 Mobile App Development (Flutter & React Native) We build cross-platform mobile apps that feel native and scale smoothly: Flutter & React Native for iOS + Android Backend integration (Firebase, Node.js, GraphQL) In-app purchases, push notifications, offline support Clean UI implementation, animations, performance tuning CI/CD, testing, store release support, and post-launch maintenance 📱 App Industries We’ve Shipped In Fitness, social networking, EdTech, food & beverage, skincare, telehealth, marketplaces, delivery, medical, music, blockchain, sports, cybersecurity, B2B SaaS, membership platforms, and more. 🌐 Web Design, Web Apps & eCommerce Development We specialize in modern, responsive, high-converting websites and scalable web platforms using: Shopify, WordPress (WooCommerce), Webflow, Squarespace Custom themes, CMS builds, advanced animations Bookings, memberships, subscriptions, gated content Page speed optimization, mobile-first builds, SEO best practices 💼 Web Industries We’ve Built For Real estate, beauty & skincare, media, consulting, nonprofits, travel, tech startups, authors, LMS platforms, financial services, and B2B marketplaces. 🔧 Our Tech Stack & Tools Frontend: React.js, Vue.js, Tailwind, HTML/CSS/JS Backend: Node.js, Laravel, Firebase, Express, Python Mobile: Flutter, React Native Platforms: Shopify, WordPress, Webflow, Squarespace Integrations: Stripe, ShipEngine, Klaviyo, Zapier, Twilio, REST, GraphQL 📊 Why Clients Work With Us A real team — not a solo generalist (design + dev + PM in one workflow) Sprint-based delivery with clear updates and predictable milestones Full-cycle execution: discovery → design → development → launch Built for performance, scalability, and long-term growth We challenge weak ideas early so you don’t waste budget later 🎁 Strategy Call + Visual Mock (Optional) If it helps, we can start with a quick strategy call to align on scope and priorities — and we can provide a simple homepage section mockup or one key app screen to help you visualize direction before you commit.

✅ 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝟳-𝟴 𝗳𝗶𝗴𝘂𝗿𝗲 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀 & 𝗦𝗮𝗮𝗦 𝗰𝗹𝗶𝗲𝗻𝘁𝘀/𝗮𝗽𝗽𝘀 𝗮𝗰𝗾𝘂𝗶𝗿𝗲𝗱. ✅ 𝟳𝟱+ 𝗮𝗽𝗽𝘀 𝗯𝘂𝗶𝗹𝘁. 𝟭𝟭+ 𝘆𝗲𝗮𝗿𝘀 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. ✅ 𝗔𝗰𝗰𝘂𝗿𝗮𝘁𝗲 & 𝗴𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲𝗱 𝗾𝘂𝗼𝘁𝗲𝘀 𝘄𝗶𝘁𝗵 𝟯𝟬-𝟰𝟬% 𝗹𝗼𝘄𝗲𝗿 𝗰𝗼𝘀𝘁𝘀 𝗮𝗻𝗱 𝗱𝗲𝘃 𝘁𝗶𝗺𝗲𝘀 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗽𝗿𝗼𝗽𝗿𝗶𝗲𝘁𝗮𝗿𝘆 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸 𝘂𝘀𝗲(prebuilt-SaaS code). ✅ 𝗣𝗵𝗲𝗻𝗼𝗺𝗲𝗻𝗮𝗹 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝘀𝗸𝗶𝗹𝗹𝘀. 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗱𝗲𝘃 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗳𝗼𝗹𝗹𝗼𝘄𝗲𝗱 𝗯𝘂𝗶𝗹𝘁 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗼𝘁𝗵𝗲𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀. ✅ 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀, 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲-𝗿𝗲𝗮𝗱𝘆 𝗳𝗿𝗼𝗺 𝗹𝗮𝘂𝗻𝗰𝗵. ✅ 𝗨𝗦 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝘁𝘆. Hi, I’m Andrew! I specialize in delivering polished SaaS apps consistently focused on earning revenue. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗮𝗻𝗱 𝗶𝗳 𝘁𝗵𝗲𝗿𝗲’𝘀 𝗮 𝗹𝗶𝗸𝗲𝗹𝗶𝗵𝗼𝗼𝗱 𝗼𝗳 𝗮 𝗴𝗼𝗼𝗱 𝗳𝗶𝘁 𝘁𝗼 𝘄𝗼𝗿𝗸 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿, 𝗜’𝗹𝗹 𝗶𝗻𝘃𝗶𝘁𝗲 𝘆𝗼𝘂 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮 𝗰𝗼𝗺𝗽𝗹𝗶𝗺𝗲𝗻𝘁𝗮𝗿𝘆 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 🗣 𝗝𝗼𝗵𝗻 𝗠𝘂𝗹𝗹𝗲𝗻𝗵𝗼𝗹𝘇 - 𝗛𝗲𝗮𝗱 𝗼𝗳 𝗦𝗮𝗹𝗲𝘀, 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 - 𝗨𝗯𝗲𝗿 𝗘𝗮𝘁𝘀 ❝ Andrew is the most skilled freelancer and developer I have ever worked with, and I have worked with a lot. He was able to take very broad ideas and turn them into actionable insights and plans in a way I could never imagine was possible. Andrew is the best possible thing to happen to our business and the definition of a true professional. I could not recommend him enough. Anyone who has the opportunity to work with Andrew should consider themselves extremely lucky. ❞ I excel at expertly guiding the app dev process to max out your revenue-earning potential in contrast to your costs, and to steer you away from common SaaS app pitfalls. Client Outcome Examples: ⚡ amzalert.com (8-Figure Acquisition - Rebuilt In 4 Months) ⚡ launchcontrol.us (8-Figure Annual Recurring Revenue - ARR) ⚡ GuestBan.com (Concept-To-Live in 5 Months - 1M+ Monthly App Checkins) My support is based on hard-won successes built through more than a decade of SaaS app obsession. Most of my clients are: ☑️ Existing Businesses - Post-revenue ☑️ Solopreneurs & Small Teams - Wanting to build an MVP app ☑️ Funded Startups - Focused on turning funding into MRR ☑️ Existing Early Stage SaaS - Want to rebuild and scale up I’m the founder of a small, hand-picked team of talented humans. I’m personally involved in all projects, and we only employ senior developers and native English speakers from the US for project management and communication. My team and I are able to consistently reduce dev costs by about 30-40% by leveraging pre-built development frameworks for common app experiences like the user login or checkout, for example, while reserving valuable dev hours for truly custom functionality. Every project we build delivers: 📱Cross Device Compatibility - Desktop - Mobile - Tablet 📈 App Speed Optimization 🧩 Scaleable - Cost-Effective Feature Addition Potential 🛡️ Security 📊 User Analytics & Internal Dashboards 🌐 Multi-Language Localization 🤖 Quality Assurance - QA 📜 Paid User Subscription, Billing & Renewal Management Thanks for taking the time to learn more about me. Invite me to your project or send me a direct message if you’re interested in working together. Talk soon! Andrew Mace - Founder - Lean Engineering Highlights of the work I have extensive experience in includes: SaaS MVP • AI Automation • No-Code/Low-Code • Process Automation • RPA • .NET 8 • Python • AWS • Azure • Docker • Serverless • OpenAI / ChatGPT • Generative AI • Zapier • Make.com • UiPath • Power Automate • n8n • Bubble • Airtable • Stripe • PayPal • Twilio • Slack • Teams • REST APIs • Webhooks • SQL • PostgreSQL • Redis • Power BI • KPI Dashboards • ETL • Airflow • Real-Time Chat • Push Notifications • Subscription Billing • CRM Integration • Lead Generation Bots • Data Analytics • Digital Transformation • Workflow Automation • Rapid Prototyping

You’re not here to get a nice color and font... 𝐘𝐨𝐮’𝐫𝐞 𝐡𝐞𝐫𝐞 𝐭𝐨 𝐬𝐨𝐥𝐯𝐞 𝐚 𝐩𝐫𝐨𝐛𝐥𝐞𝐦, 𝐠𝐫𝐨𝐰 𝐚 𝐩𝐫𝐨𝐝𝐮𝐜𝐭, 𝐚𝐧𝐝 𝐰𝐢𝐧 𝐮𝐬𝐞𝐫𝐬 🚀 That’s exactly what I design for. I have 10 years of experience in UI UX design and helping 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀, 𝗦𝗮𝗮𝗦 𝗰𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀, 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗶𝗻𝗴 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 build products that are usable, beautiful, and built to perform - across 𝘄𝗲𝗯 𝗮𝗽𝗽𝘀, 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀, 𝗱𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀, 𝗹𝗮𝗻𝗱𝗶𝗻𝗴 𝗽𝗮𝗴𝗲𝘀, 𝗮𝗻𝗱 𝗱𝗲𝘀𝗶𝗴𝗻 𝘀𝘆𝘀𝘁𝗲𝗺𝘀. 🎯 𝙄 𝘿𝙚𝙨𝙞𝙜𝙣 𝙛𝙤𝙧 𝙊𝙪𝙩𝙘𝙤𝙢𝙚𝙨, 𝙉𝙤𝙩 𝙅𝙪𝙨𝙩 𝘼𝙚𝙨𝙩𝙝𝙚𝙩𝙞𝙘𝙨 My focus isn’t just “making things pretty.” It’s solving real problems, reducing churn, increasing activation, and helping products scale. I ask: ➡️ Will users understand this flow the first time? ➡️ Can the devs build this efficiently? ➡️ Is this screen aligned with your KPIs? ➡️ What will help your product win in your market? And then I design around those answers. 𝐂𝐫𝐞𝐝𝐞𝐧𝐭𝐢𝐚𝐥𝐬 𝐚𝐭 𝐚 𝐠𝐥𝐚𝐧𝐜𝐞: ✅ 10+ years of UI/UX design experience ✅ 150+ successfully completed UI UX design projects ✅ 30+ SaaS platforms ✅ 30+ mobile apps ✅ 10+ fintech & crypto products ✅ 💯 Top Rated Plus on Upwork ✅ 🕓 2000+ Upwork hours billed ✅ 🌎 Clients in the US, UK, Canada, Germany, France, Japan & others 🔧 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐃𝐞𝐬𝐢𝐠𝐧 𝐅𝐨𝐫 𝐘𝐨𝐮 Whether you’re validating an MVP or refining an enterprise-grade SaaS, here’s what I bring to the table: 🌐 𝗦𝗮𝗮𝗦 & 𝗪𝗲𝗯 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 ✔️ Onboarding flows that reduce friction ✔️ Dashboards that make data instantly actionable ✔️ Admin panels with smart navigation ✔️ Cross-role flows (HR, CRM, finance, sales, etc.) 📱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗨𝗜/𝗨𝗫 𝗗𝗲𝘀𝗶𝗴𝗻 ✔️ iOS & Android (native or hybrid) ✔️ Clean UX for daily usage apps ✔️ UX for wellness, logistics, education ✔️ MVP validation & scalable design structure 📊 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱 & 𝗗𝗮𝘁𝗮 𝗨𝗜 ✔️ Data visualization that tells a story ✔️ Role-based dashboards with filters, KPIs, insights ✔️ Responsive, dev-friendly layouts 🧩 𝗗𝗲𝘀𝗶𝗴𝗻 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 & 𝗨𝗜 𝗞𝗶𝘁𝘀 ✔️ Atomic design principles ✔️ Reusable components & scalable style guides ✔️ Streamlined handoff with detailed Figma files 🧠 𝗨𝗫 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 & 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝘆 ✔️ Competitor analysis ✔️ User goals + business alignment ✔️ Navigation structure, user flows, wireframes ✔️ Low- to high-fidelity prototypes ✔️ User Personas development 🌍 𝗟𝗮𝗻𝗱𝗶𝗻𝗴 𝗣𝗮𝗴𝗲𝘀 & 𝗠𝗮𝗿𝗸𝗲𝘁𝗶𝗻𝗴 𝗦𝗶𝘁𝗲𝘀 ✔️ Conversion-optimized layout ✔️ Story-driven structure & CTA design ✔️ Built to convert traffic into action 💼 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐤𝐧𝐨𝐰 𝐈𝐧𝐬𝐢𝐝𝐞-𝐎𝐮𝐭 - Fintech & Crypto (banking apps, investing tools, invoicing, Web3) - SaaS & B2B Tools (CRM, ERP, team management, sales automation) - HR Tech & Recruitment (job boards, mentoring platforms, applicant tracking) - Healthcare & Wellness (fitness, treatment tracking, nutrition) - Logistics & Fleet Management (AI-based pricing, tracking tools) - EdTech & E-learning (language apps, learning platforms, LMS) - Travel & Lifestyle (trip planners, booking, reward systems) - AI & Data Platforms (cybersecurity, analytics dashboards) - E-commerce Tools & Admin Panels (TikTok ad tools, sales apps) 🛠️ 𝐓𝐨𝐨𝐥𝐬 Figma (my main design hub) FigJam, Miro (flows & collaborative mapping) Adobe Illustrator & Photoshop (supporting visuals) InVision, Marvel App (prototyping) Notion, Slack, Trello, Asana (project mgmt.) I don't work with Flutter, Shopify, WordPress, or Webflow. 📈 𝐌𝐲 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 = 𝐂𝐥𝐚𝐫𝐢𝐭𝐲 + 𝐒𝐩𝐞𝐞𝐝 + 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 𝟭) 𝗗𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 & 𝗨𝗫 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 Understand users, product goals & market 𝟮) 𝗨𝗫 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝘆 Define user flows & Information Architecture that reduce friction 𝟯) 𝗪𝗶𝗿𝗲𝗳𝗿𝗮𝗺𝗲𝘀 Clean, logical layouts as a base 𝟰) 𝗨𝗜 𝗗𝗲𝘀𝗶𝗴𝗻 Pixel-perfect visuals aligned with your brand 𝟱) 𝗣𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗶𝗻𝗴 & 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 Interactive prototypes for validation & feedback 𝟲) 𝗛𝗮𝗻𝗱𝗼𝗳𝗳 Dev-ready Figma files + style guide or design system 🤖 𝐀𝐈-𝐄𝐧𝐡𝐚𝐧𝐜𝐞𝐝 𝐃𝐞𝐬𝐢𝐠𝐧 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 ✔️ Faster exploration of flows and ideas ✔️ Stronger UX logic and structure ✔️ Smarter, faster iterations ✔️ Better support for complex products AI enhances my process, not replaces it by helping me move faster, think deeper, and design with more clarity, while keeping every decision human-led and business-focused. ⚡ 𝐋𝐞𝐭’𝐬 𝐝𝐞𝐬𝐢𝐠𝐧 𝐚 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐩𝐞𝐨𝐩𝐥𝐞 𝐚𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐮𝐬𝐞 If you're looking for a UI UX designer who brings strategy, clarity, and experience, not just visuals - let’s talk. 📩 𝗖𝗹𝗶𝗰𝗸 “𝗦𝗲𝗻𝗱 𝗠𝗲𝘀𝘀𝗮𝗴𝗲” and tell me what you're working on. Let’s make it user-loved and investor-ready! Available from June4th, 2026

I am Sabyasachi Saha, an AI Agent, Full-Stack AI, Workflow Automation, LLM, and SaaS Developer. I work as an individual consultant and hands-on technical architect, backed by my experience as the CEO and Chief AI Scientist of Techno Exponent. I have completed my PhD from SSBM Geneva with a research focus in Generative AI and Sentiment Analysis. With 20+ years of experience in the IT industry, I help startups, enterprises, and growing businesses build intelligent, scalable, and automation-driven digital products. My major focus is on AI agents, LLM-based applications, workflow automation, SaaS platforms, full-stack application development, data engineering, and analytics. I combine strong technical knowledge with business understanding, so I can support projects from idea validation, architecture planning, development, integration, automation, and long-term scalability. I founded Techno Exponent in 2011, and since then, we have helped global businesses with digital transformation, AI solutions, automation platforms, SaaS products, enterprise applications, web/mobile apps, and complete IT solutions. As an individual professional on Upwork, I personally bring leadership experience, AI architecture knowledge, hands-on development understanding, and product-focused thinking to every project. I can help you with: ✅ AI Agent Development ✅ LLM-Based Applications ✅ ChatGPT / OpenAI / Claude / Gemini Integration ✅ RAG Systems and Vector Databases ✅ AI Chatbots and Voice Bots ✅ Workflow Automation ✅ Business Process Automation ✅ SaaS Product Development ✅ Full-Stack Web Application Development ✅ Data Engineering and Data Analytics ✅ AI-Powered Dashboards and Reporting Systems ✅ CRM, ERP, and Third-Party API Integrations ✅ MVP Development and Product Modernization I have worked across multiple industries, including healthcare, education, e-commerce, real estate, fintech, logistics, transportation, recruitment, food delivery, dating platforms, blockchain, and enterprise automation. My experience includes AI chatbots, AI calling bots, CV screening platforms, AI interview systems, RAG-based knowledge assistants, analytics dashboards, CRM automation systems, workflow automation platforms, SaaS products, and scalable full-stack applications. My technical expertise includes: ✅ AI/ML: Generative AI, NLP, LLMs, AI Agents, RAG Systems, LangChain, LlamaIndex, Hugging Face, OpenAI, Claude, Gemini, Computer Vision, Sentiment Analysis, Predictive Analytics ✅ Automation: Workflow Automation, Business Process Automation, AI-Powered Automation, n8n, Make, Zapier, CRM Automation, Email Automation, Lead Automation, API Automation, WhatsApp Automation, Voice Bot Automation ✅ Data: Data Engineering, ETL Pipelines, Data Analytics, Business Intelligence, AI-Powered Dashboards, Reporting Systems, Data Visualization, Data Warehousing, Real-Time Data Processing ✅ SaaS: SaaS Product Development, Multi-Tenant Architecture, Subscription Models, Role-Based Access Control, Admin Panels, User Dashboards, API-First Architecture, Scalable Cloud-Based Platforms ✅ Full-Stack Development: Python, FastAPI, Node.js, Express.js, Django, Flask, Java, PHP, Laravel, React.js, Next.js, Angular, Vue.js, TypeScript, JavaScript ✅ Databases & Cloud: PostgreSQL, MySQL, MongoDB, Firebase, Redis, Vector Databases, Pinecone, Chroma, Weaviate, AWS, GCP, Azure, Docker, Kubernetes, CI/CD ✅ Integrations: Stripe, PayPal, Twilio, WhatsApp API, SendGrid, Google APIs, CRM/ERP Integrations, Payment Gateways, Custom API Development Achievements: 🏆 Awarded “Most Influential Young Leaders 2021-22” by AsiaOne and Economic Times 🏆 Techno Exponent recognized as Times Leading IT Company 2022 🏆 Techno Exponent recognized as Most Customer-Centric IT Company 2022 🏆 Techno Exponent recognized as Leading App Development Company of the Year 2023 When working with me, you get more than a developer. You get a technical partner who understands business goals, product architecture, AI implementation, automation strategy, scalability, and execution. My goal is simple: to help businesses turn ideas into intelligent, scalable, and revenue-focused digital products. If you are looking for someone who understands AI, automation, SaaS, full-stack development, data, and business execution, I would be happy to discuss your project and help you build the right solution.

Nice to meet you 🎨✨ I'm Kostiantyn, a UI UX designer, product designer, UIUX designer, and web designer specializing in Mobile App Design, Web App Design, SaaS platforms, Dashboard Systems, and AI Products. As a figma specialist and landing page designer, I help startups and founders create user-friendly digital products with strong user experience, intuitive interfaces, and development-ready systems built on conversion rate optimization principles. With 600+ projects delivered across Mobile Apps, Web Apps, SaaS Platforms, Ecommerce, AI Products, Healthcare, Marketplaces, Dashboards, and Fintech - I work as a UI UX designer, web designer, graphic designer, saas designer, and landing page designer who understands the full picture from first wireframe to final handoff. ✅ What I do as a UI UX Designer, Web Designer, and Product Designer ❇️ Mobile App Design & Mobile UI UX As a mobile app ui ux designer and UI UX designer, I design for iOS and Android - covering onboarding flows, mobile ui ux navigation, and retention-focused mobile app design. Every mobile app design I deliver as a figma app designer is grounded in conversion rate optimization and real user behaviour. My mobile ui ux work spans healthtech, fintech, edtech, and marketplace products. Strong mobile app design requires both UIUX designer thinking and graphic designer craft working together. As a UIUX designer and saas designer with mobile experience, I treat every mobile app design project as a product problem first. ❇️ UI UX Design for SaaS & Web Apps As a SaaS designer, UIUX designer, and product designer, I build interfaces for analytics platforms, admin panels, and complex dashboards. My saas designer approach combines ux designer strategy with figma ui ux execution - delivering scalable systems. Whether you need a ui ux designer saas, ui ux dashboard, or full web design rebuild, I deliver as a ui ux designer figma and ui ux designer react specialist. Every saas designer engagement starts with a ux designer audit before any screen is touched. ❇️ Figma Design, Prototyping & Design Systems As a figma designer, figma ui designer, and UIUX designer, I deliver high-fidelity wireframes, prototypes, and figma ui design systems. I handle figma to webflow, figma to react, figma to wordpress, figma to shopify, and figma to next handoffs. Every figma app designer deliverable and figma landing page is built for developers to implement without guesswork. Whether you need a figma designer for a web design project or a figma ui designer for a full design system - I deliver. ❇️ Web Design, Website Design & Landing Pages As a web designer, website designer, and landing page designer, I create conversion rate optimization focused web design for SaaS, ecommerce, and startups. My web design spans wordpress website design, webflow ui ux, shopify website design, and wix web design - always delivered as a ui/ux web designer and website designer. As a landing page designer, I apply conversion rate optimization to every layout, CTA, and visual hierarchy. Every website design I deliver as a website designer is built to convert - because a landing page designer who ignores conversion rate optimization is just making art. Website design, web design, and website designer work are at the core of every engagement I take as a web designer. ❇️ Graphic Design & Visual Identity As a graphic designer, UI UX designer, and web designer, I cover logo design, brand identity, and visual systems. Strong graphic designer work is built into every product. Whether you need a graphic designer for a product launch, a web designer for website design, or a figma web designer for a landing page designer engagement - I bring the same graphic designer craft and UIUX designer discipline to every project. ❇️ UX Research & Information Architecture As a ux designer and product designer, I map user journeys, define information architecture, and build user flows that reduce friction. My ux designer process covers research, wireframing, and usability testing - giving every UI UX designer decision a strategic foundation. 📊 Results ✔️ 200+ projects as a UI UX designer, SaaS designer, web designer, UIUX designer, and graphic designer ✔️ Mobile app design for iOS & Android with mobile ui ux systems and figma app designer handoffs ✔️ Saas designer and ui ux designer saas work across dashboards and B2B platforms ✔️ Figma to react, figma to webflow, figma to wordpress, figma to shopify across 50+ products ✔️ Landing page designer work with proven conversion rate optimization results for SaaS and ecommerce ✔️ Graphic designer and website designer web design work across startup brands ✔️ Conversion rate optimization and website designer expertise across 50+ web design and landing page projects Have a product idea? Let's connect 🤝📩 and turn it into something people enjoy using ✨ Last updated: 30.06.2026

I build SaaS platforms, AI-powered products, and mobile apps — from first wireframe to production deployment. 300+ projects delivered across 15+ countries. Whether you need a senior developer for a focused build or a full end-to-end delivery with design, development, and QA — I scale to what your project actually needs. My strongest work happens at the intersection of product thinking and technical execution. I don't just write code — I start with documented requirements, define acceptance criteria and edge cases upfront, and deliver against specs you've signed off on. Fewer surprises, fewer "that's not what I meant" moments, and software that works the way you expected. 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱: 𝗦𝗮𝗮𝗦 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 — Multi-tenant subscription products with real billing complexity: free trials, upgrades with mid-cycle proration, downgrades, failed payment dunning, usage-based plan limits, role-based access control, and admin dashboards with analytics, bulk operations, and data export. React/Next.js, Node.js or Laravel, PostgreSQL or MongoDB, Stripe or Razorpay. 𝗔𝗜-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝘀 — This is where I do my most differentiated work. RAG systems where AI answers questions from your specific documents (contracts, policies, catalogs) with source citations and confidence thresholds. LLM-powered chatbots and automation agents using OpenAI, Claude, or Gemini. OCR and document intelligence for invoices, IDs, and forms. For data-sensitive projects, I deploy self-hosted models (LLaMA, Mistral) on RunPod so your data never leaves your environment. Python/Django orchestration, LangChain, Pinecone/Weaviate/pgvector. 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝘀 — Cross-platform iOS + Android with React Native. I handle what most developers miss: offline behavior, push notification flows, platform differences between iOS and Android, deep linking, device permissions, Apple Sign-In compliance, and App Store/Play Store submission. 𝗘-𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲 & 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲𝘀 — Full commerce builds with payment gateway integration (including webhook handling and idempotent processing), order state machines, inventory, shipping integration, and separate seller/buyer dashboards for marketplaces. 𝗔𝗣𝗜 𝗕𝗮𝗰𝗸𝗲𝗻𝗱𝘀 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 — Backend services consumed by your existing frontend, third-party system integrations, real-time features via WebSocket, and data-heavy dashboards with complex filtering and reporting. 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸: Every project starts with documented feature specs — screens, user actions, success states, error states, edge cases — with acceptance criteria so "done" is never ambiguous. Designs are reviewed against requirements before development begins. During the build, you get proactive updates. If something is outside scope, I flag it before building it. Before delivery, everything is tested against signed specs and you get a staging walkthrough to verify. 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸: Frontend: React, Next.js, Vue.js, React Native, Tailwind CSS Backend: Node.js, Laravel, Python/Django AI/ML: LangChain, OpenAI, Claude, Gemini, Pinecone, Weaviate, pgvector, RunPod Databases: PostgreSQL, MySQL, MongoDB, Firebase, Redis, Supabase Cloud: AWS, GCP, DigitalOcean, Vercel, Docker Integrations: Stripe, Razorpay, Twilio, SendGrid, Google Maps, Cloudinary, Shiprocket 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀: → AI Travel Agent — RAG-powered conversational platform with document ingestion, vector search, and LLM-generated recommendations with citations. → P2P Fashion Rental Marketplace — React + Node.js + Stripe marketplace with buyer/seller flows, payments, and review system. Client: "They immediately understood the vision and delivered everything on time." → SaaS Portal Redesign — Full UI/UX redesign and rebuild. Client: "Strong understanding of SaaS UI/UX requirements, responsive and professional." → OpenWebUI Customization — Python-based AI interface customization. Client: "Absolutely on their game. Completed 100% to my satisfaction, super fast." Message me with your project brief — I respond within 2 hours with an honest assessment of fit, timeline, and approach. If it's not the right fit, I'll tell you that too.

Hello! I'm Dmytro, a UI UX designer, product designer, UIUX designer, and web designer specializing in Mobile App Design, Web App Design, SaaS platforms, Dashboard Systems, and AI Products. As a figma specialist and landing page designer, I help startups and founders create user-friendly digital products with strong user experience, intuitive interfaces, and development-ready systems built on conversion rate optimization principles. With 200+ projects delivered across Mobile Apps, Web Apps, SaaS Platforms, Ecommerce, AI Products, Healthcare, Marketplaces, Dashboards, and Fintech - I work as a UI UX designer, web designer, graphic designer, saas designer, and landing page designer who understands the full picture from first wireframe to final handoff. ✅ What I do as a UI UX Designer, Web Designer, and Product Designer ❇️ Mobile App Design & Mobile UI UX As a mobile app ui ux designer and UI UX designer, I design for iOS and Android - covering onboarding flows, mobile ui ux navigation, and retention-focused mobile app design. Every mobile app design I deliver as a figma app designer is grounded in conversion rate optimization and real user behaviour. My mobile ui ux work spans healthtech, fintech, edtech, and marketplace products. Strong mobile app design requires both UIUX designer thinking and graphic designer craft working together. As a UIUX designer and saas designer with mobile experience, I treat every mobile app design project as a product problem first. ❇️ UI UX Design for SaaS & Web Apps As a SaaS designer, UIUX designer, and product designer, I build interfaces for analytics platforms, admin panels, and complex dashboards. My saas designer approach combines ux designer strategy with figma ui ux execution - delivering scalable systems. Whether you need a ui ux designer saas, ui ux dashboard, or full web design rebuild, I deliver as a ui ux designer figma and ui ux designer react specialist. Every saas designer engagement starts with a ux designer audit before any screen is touched. ❇️ Figma Design, Prototyping & Design Systems As a figma designer, figma ui designer, and UIUX designer, I deliver high-fidelity wireframes, prototypes, and figma ui design systems. I handle figma to webflow, figma to react, figma to wordpress, figma to shopify, and figma to next handoffs. Every figma app designer deliverable and figma landing page is built for developers to implement without guesswork. Whether you need a figma designer for a web design project or a figma ui designer for a full design system - I deliver. ❇️ Web Design, Website Design & Landing Pages As a web designer, website designer, and landing page designer, I create conversion rate optimization focused web design for SaaS, ecommerce, and startups. My web design spans wordpress website design, webflow ui ux, shopify website design, and wix web design - always delivered as a ui/ux web designer and website designer. As a landing page designer, I apply conversion rate optimization to every layout, CTA, and visual hierarchy. Every website design I deliver as a website designer is built to convert - because a landing page designer who ignores conversion rate optimization is just making art. Website design, web design, and website designer work are at the core of every engagement I take as a web designer. ❇️ Graphic Design & Visual Identity As a graphic designer, UI UX designer, and web designer, I cover logo design, brand identity, and visual systems. Strong graphic designer work is built into every product. Whether you need a graphic designer for a product launch, a web designer for website design, or a figma web designer for a landing page designer engagement - I bring the same graphic designer craft and UIUX designer discipline to every project. ❇️ UX Research & Information Architecture As a ux designer and product designer, I map user journeys, define information architecture, and build user flows that reduce friction. My ux designer process covers research, wireframing, and usability testing - giving every UI UX designer decision a strategic foundation. 📊 Results ✔️ 200+ projects as a UI UX designer, SaaS designer, web designer, UIUX designer, and graphic designer ✔️ Mobile app design for iOS & Android with mobile ui ux systems and figma app designer handoffs ✔️ Saas designer and ui ux designer saas work across dashboards and B2B platforms ✔️ Figma to react, figma to webflow, figma to wordpress, figma to shopify across 50+ products ✔️ Landing page designer work with proven conversion rate optimization results for SaaS and ecommerce ✔️ Graphic designer and website designer web design work across startup brands ✔️ Conversion rate optimization and website designer expertise across 50+ web design and landing page projects Have a product idea? Let's connect 🤝📩 and turn it into something people enjoy using ✨ Last updated: 15.06.2026

🚀 𝐖𝐞𝐛𝐬𝐢𝐭𝐞 𝐃𝐞𝐬𝐢𝐠𝐧, 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐀𝐈 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐄𝐱𝐩𝐞𝐫𝐭 | 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 | 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫 | 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 | 𝐏𝐇𝐏 | 𝐖𝐞𝐛𝐟𝐥𝐨𝐰 | 𝐖𝐢𝐱 | 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 Hi, I help startups, small businesses, and growing companies build high-performance websites, mobile apps, SaaS platforms, and AI-powered solutions that are visually appealing, scalable, and optimized for growth. With 10+ years of experience in Website Development, Mobile App Development, Full-Stack Engineering, UI/UX Design, and Artificial Intelligence solutions, I specialize in building modern digital products that improve customer engagement, automate workflows, and drive business growth. 🌐 Website Design & Development Services • Website Design (UI/UX Design) • WordPress Development (Elementor, Custom Themes) • Shopify Store Development • Webflow Development • Wix & Squarespace Websites • Framer Websites • Landing Page Design • Website Redesign & Optimization • Custom Web Applications • eCommerce Development • API Integration & Automation 📱 Mobile App Development Services • iOS & Android App Development • Flutter App Development • React Native Development • Cross-Platform App Development • MVP Development • SaaS Applications • Marketplace Apps • Booking & Scheduling Apps • Healthcare & Fitness Apps • Food Ordering Apps • Logistics & Delivery Apps • Real Estate Apps • Admin Dashboards & Portals 🤖 AI Development & Automation • AI-Powered Web & Mobile Applications • OpenAI / ChatGPT Integration • AI Chatbots & Virtual Assistants • AI Customer Support Systems • AI Content Generation • AI Workflow Automation • AI Knowledge Base Solutions • Document Processing & OCR • AI Search & Recommendation Systems • AI Analytics & Reporting • Voice AI Integration • Custom AI Agents • LLM-Powered Applications • Business Process Automation 💻 Technologies & Platforms Website Platforms: WordPress • Shopify • Webflow • Wix • Squarespace • Framer Frontend: HTML5 • CSS3 • JavaScript • React • Next.js • TypeScript Backend: Node.js • PHP • Laravel • Express.js • REST API • GraphQL Mobile: Flutter • React Native • Firebase • Supabase AI & Automation: OpenAI • ChatGPT • Claude AI • Gemini • LangChain • AI Agents • Prompt Engineering • RAG Systems Database: MySQL • PostgreSQL • MongoDB • Firebase Firestore Design: Figma • Adobe XD • UI/UX Design • Wireframing • Prototyping 🎯 Industries Served E-commerce • SaaS • Healthcare • Education Real Estate • Construction • Travel & Tourism Finance • Logistics • Marketplace Platforms Legal Tech • Fitness • Professional Services Startups • Local Businesses • Enterprise Solutions ⭐ Why Clients Hire Me ✔ 10+ Years of Development Experience ✔ Website, Mobile App & AI Expertise ✔ Full-Stack Development Capabilities ✔ Modern UI/UX Design Skills ✔ Scalable Architecture & Clean Code ✔ AI Automation & Business Optimization ✔ SEO-Friendly & Conversion-Focused Solutions ✔ Reliable Communication & On-Time Delivery Whether you need a business website, eCommerce platform, mobile app, SaaS product, AI chatbot, marketplace, CRM, automation workflow, or custom AI-powered solution, I can help transform your vision into a successful digital product. 📩 Let's discuss your project and build something exceptional together. Thanks, Puneesh

AI Consulting, CTO Expertise, Full Stack Development. Workflow Automations and Digital Transformations 🏆 Helped LulaCommerce Raise $10M in funding starting from scratch and now 1000+ stores on board 🏆 AUAV powered by software developed by us now used by clients like Rio Tinto, Energy Australia reducing the need of manpower by over 80% 🏆 Worked with leading marketplaces for therapists like Mental Health Match and UK Therapy Guide with thousands of therapists and customers on board 🏆 Setup and Manage dedicated team for LOCL.AI that power local seo for leading chains and travel destinations ⭐⭐⭐⭐⭐ "Faizan and his team were excellent! They were an extension of our team and were able to cover full-stack development across our web and mobile presence. ⭐⭐⭐⭐⭐ "Faizan, has a great team of professional developers. Part from his skill foremost I loved his attitude to work and manage product needs" ⭐⭐⭐⭐⭐ "Faizan is great and very reliable, I knew he was a great fit for our project as soon as we jumped on the phone. If you're looking for someone to turn your idea into a reality then Faizan and his team are your answer. I don't know very much about software, and most people I interviewed made everything way overcomplicated and asked me questions I wouldn't know how to answer in a million years. Faizan gave me no BS, and spoke to me in terms I could understand." As a CTO, I provide guidance on product roadmap planning, architecture design, and technology stack selection, enabling businesses to achieve sustainable growth. Web Development: Transforming ideas into reality through cutting-edge web technologies and design. AI Consulting: Strategic integration of AI technologies to enhance operational efficiency and innovation. CTO Expertise: Leadership in product roadmap planning, architecture design, and tech stack selection. Full Stack Development: Comprehensive development using technologies like Python, React, NextJs, Node, and more. Let’s collaborate to take your project to the next level. Contact me today to discuss how I can bring your vision to life.