Hire the Best Apple Watch Developers in Kharkiv, UA

"If you want “no rework” engineering: I am Full Stack Developer React Node (Senior) with ownership, speed and quality ✅ 𝟏𝟑,𝟎𝟎𝟎+ 𝐡𝐨𝐮𝐫𝐬 𝐰𝐨𝐫𝐤𝐞𝐝 with a strong focus on business outcomes and quality ✅ 𝟑𝟎+ 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝, turning ideas into working software from start to finish ✅ 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐢𝐚𝐥 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 building scalable web, mobile, and SaaS products ✅ 𝟐𝟎+ 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐦𝐚𝐬𝐭𝐞𝐫𝐞𝐝 across frontend, backend, mobile, cloud, databases, and AI ✅ 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐜𝐨𝐫𝐞 on Upwork — Expert-Vetted (Top 10 Worldwide) Hey, I’m 𝐌𝐢𝐜𝐡𝐚𝐞𝐥 - a business-oriented software engineer, senior full stack developer. As a full stack software engineer I help startups and SMBs turn ideas into valuable digital products. Fast, stress-free, and with full delivery ownership. I also work as a React developer / Front end developer (Front end developer React) and a backend developer on node.js (node) - often in MERN stack and full stack node.js setups. Day-to-day I build full stack node.js react products. ⭐⭐⭐⭐⭐ ""I never write reviews for anything, but Michael and his team were just so great that I had to. From the very beginning, Michael stood out with how organized, responsive..."" - Chris, $16K+ full stack react node project ━━━━━━━━━━━━━━━━━━ 𝐒𝐤𝐢𝐥𝐥𝐬 & 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 | Full stack node.js react developer ━━━━━━━━━━━━━━━━━━ ▸ Backend: Node, Express, Fastify, PostgreSQL, MongoDB ▸ Frontend: React, Next ▸ Mobile: React Native, Flutter, Swift, Kotlin ▸ Design: SaaS & Product Design, Web & Mobile Interfaces ▸ DevOps: AWS, Azure, GCP, Vercel ▸ CMS: Contentful, Strapi, Sanity I deliver end-to-end web apps as a full stack react developer, combining clean UI with reliable backend architecture. My full stack developer supabase react expertise covers auth and data. For Google-backed products, full stack developer react firebase supports scalable workflows. I build mobile/API ecosystems through full stack react native spring boot delivery. On the server side I work as a full stack developer node / full stack developer node js, building APIs, auth, and integrations; on the client side I build full stack react interfaces and full stack react js components using javascript, react, and nextjs. I connect frontend and backend using react node and confidently handle full stack developer mern projects. This is true react full stack delivery: as a react full stack developer, I ensure scalable, maintainable, production-ready features. When needed, I step in as CTO and software project manager (and sometimes an ERP consultant for internal ops): architecture, roadmap and execution - plus business consulting focused on outcomes, timelines, and budgets. I’m comfortable in production: database design, migrations, performance, dba-style care, nginx basics, payments with stripe, and integrations with shopify. For APIs, I work as a node.js backend developer focused on reliability. I cover back end developer node.js tasks across integrations and performance. My full stack developer shopify experience supports commerce, while full stack developer ai expertise covers openai features. I’ve shipped med spa platforms, web3 apps, trading dashboards, website development perfume projects, and coin flip mechanics with gambling UX constraints in mind. ━━━━━━━━━━━━━━━━━━ 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐡𝐚𝐯𝐞 𝐰𝐨𝐫𝐤𝐞𝐝 𝐰𝐢𝐭𝐡 as Full stack Developer React Node ━━━━━━━━━━━━━━━━━━ ▸ Logistics & Supply Chain ▸ Fintech & Crypto ▸ Health & Wellness ▸ Food & Restaurant Management ▸ Real Estate ▸ Social Media ▸ Education & E-Learning I ship modern website work as a web developer / full stack web developer / full stack website developer, support CMS builds as a wordpress developer (front end wordpress) or with drupal. I also deliver outside JS when it fits: laravel and full stack developer laravel (including laravel vue), ruby on rails, python work and python full stack developer engagements; plus enterprise builds in full stack .net and senior full stack .net. I collaborate closely with ui ux / ui/ux teams - sometimes acting as a ui ux web designer partner, pairing with a ux designer. I can also help with intercom setup and intercom developer work. ━━━━━━━━━━━━━━━━━━ My expertise as a Mobile App Developer / Full stack software developer ━━━━━━━━━━━━━━━━━━ I build production-ready apps with react native (as a react native developer / react native full stack developer) and can deliver via flutter full stack developer workflows when it fits. I’ve supported niche requirements too, including qt developer, revit developer, and xamarin developer tasks. ━━━━━━━━━━━━━━━━━━ 📩 LET’S CONNECT ━━━━━━━━━━━━━━━━━━ If you want a calm, low-risk full stack engineer / full stack react node who can take ownership from idea → production, message me. No pitch decks, just pure value 𝐖𝐚𝐫𝐦 𝐑𝐞𝐠𝐚𝐫𝐝𝐬, 𝐌𝐢𝐜𝐡𝐚𝐞𝐥"

iOS Software Engineer with over 9 years of commercial experience. Skilled in building applications from scratch to release, including award-winning apps. Special skill in finding and fixing bugs, eliminating bottlenecks, and providing the best solutions for particular cases — keeping your codebase healthy and efficient.
Experienced in building and optimizing systems using AVFoundation and Metal frameworks. Experience in SDK development Skills: * Swift * SwiftUI, UIKit * AI Integrations: Text-to-Speech, Speech-to-Text, Text-to-Text, Text-to-Image * LiveKit * Core Location (GPS) * Combine * Core Data * AVFoundation * Metal * Mapbox, Google Maps, Apple Maps * SceneKit, RealityKit, Unity3D * RoomKit * Bitrise CI, Fastlane, TestFlight * Bluetooth, Beacons * Networking (REST, Sockets) * StoreKit, In-App Purchases, Subscriptions * Unit and UI Testing * Firebase (Analytics, Auth, Database, Dynamic Links, Notifications) * Familiar and ready to dive deeper into C++, Flutter, Unity3D, and OpenGL when needed

Welcome to my profile! I’m a mobile and AR/VR app development expert with 10 years of experience in the field. I am keen on cutting-edge technologies and helping businesses achieve their objectives. But, as a technical expert, I also embed my unique approach to working with clients: Solid requirements analysis and elicitation - Offering at least a couple of project scope realization options - Visualization of the possible technical strategy in a format of a demo Recently I’ve been involved in a bunch of AR researches as a part of my core expertise to stay in touch with new technological insights and keep my professional expertise up to the industry best practices. Besides these, here is a list of bells and whistles I can also provide: Technologies: - iOS, macOS, watchOS, tvOS - ARKit, ARCore, RealityKit, SceneKit - Swift, Objective-C, LiDAR - Kotlin, Java, Dart, C++ - Beacons, Bluetooth, IoT, Location, and Mapping Domains: - Retail - Construction and Real Estate - Aviation, Tourism, Travel - Entertainment and Social networking - Marketing and Advertising - Fintech - Insurance - Industrial Project types: - Mobile application - Standalone module, Framework, SDK - AR Proof of Concept - Companion mobile app (to comply with an existing web/desktop software) - Demo I’m open to both consultancy and development opportunities. Feel free to get in touch with me and my team if you want to discuss a mobile or AR application idea, I am sure I will have valuable and interesting ideas to share with you!

𝑴𝒐𝒔𝒕 𝒂𝒑𝒑𝒔 𝒈𝒆𝒕 𝒃𝒖𝒊𝒍𝒕. 𝑭𝒆𝒘 𝒈𝒆𝒕 𝒇𝒆𝒍𝒕. The difference is in the details nobody notices until they're missing. As a lead iOS Developer, I help fast-growing startups and enterprises ship faster, cutting time-to-market by 40% while keeping app stability at 99.9%. Complex requirements become clean, scalable products that hold up under real-world pressure and real-world users. When you hire an iOS Developer, you need more than just code; you need a partner who understands the business impact of a smooth user journey. As a dedicated App developer, I have spent years mastering Swift to craft seamless experiences that users love. Whether we are building a greenfield project or optimizing legacy systems, my work as an iOS Developer ensures your application stands out in a crowded App Store. My approach to Mobile App Development is rooted in precision. As an experienced iOS Developer, I treat every project as a strategic investment. I leverage Swift to build modular, maintainable architectures that allow for rapid iteration. Many clients come to me after struggling with technical debt, and as a seasoned App developer, I excel at identifying bottlenecks. Using Apple Xcode and advanced debugging techniques, I ensure that every Swift implementation is optimized for performance. An iOS Developer must also be a great communicator, and as a professional App developer, I bridge the gap between technical constraints and business goals. I do not work in a silo. Often, I collaborate with an android developer or a flutter developer to ensure feature parity across platforms. Having deep knowledge of iOS Development combined with an understanding of Android App Development allows me to architect robust cross-platform strategies. Even when working strictly on an iOS build, I maintain awareness of the broader ecosystem. My expertise in API Integration and Firebase ensures that your Mobile App remains connected and reliable. Whether you need a complex Hybrid App Development solution or a high-end native experience, my background as an iOS Developer and App developer using Swift covers all bases. I have seen projects fail due to poor planning, which is why my process includes deep analysis of Mobile App Design and Mobile App Redesign cycles. I have mentored teams on Objective-C to Swift migrations and have successfully integrated React Native components where speed is critical. As an App developer who understands the full lifecycle, I have worked alongside a web developer and a full stack developer to ensure end-to-end data integrity. From Kotlin workflows for your secondary platforms to native iOS performance tuning, I bring a holistic view to every task. Why choose me? Because I provide more than just syntax; I provide security and scalability. My history as an iOS Developer includes fixing critical production issues that saved companies thousands in churn. When I write Swift, I prioritize readability and security. As an App developer, I use Firebase for real-time data and implement complex logic that makes your app feel like magic. My experience with Mobile App Bug Fix tasks is extensive I treat these as opportunities to stabilize and grow. I also understand the aesthetic side. While I am an iOS Developer at heart, I collaborate closely with any graphic designer to ensure that the final Mobile App interface is pixel-perfect. If you need a software developer who understands the nuances of the App Store submission process, you have found the right person. I have published over 50 apps, ensuring every Swift build meets the highest standards. If you are looking for a professional iOS Developer who treats your business like his own, let’s talk. I am an App developer who believes that code should be beautiful, but the business result must be profitable. Whether you are transitioning from Objective-C to Swift, or launching a new project that requires expert Mobile App Development, my commitment is to deliver quality, speed, and reliability. As your next iOS Developer, I am ready to help you dominate the market. Let's build something exceptional using the power of Swift and modern Mobile App technologies. Reach out today to see how my work as an App developer can scale your vision.

I am the founder of Nitrix, a software development company. I have specialized in web and mobile development for more than 10 years and now I can offer you a team of outstanding developers who can create excellent IT solutions for you and your business! Your idea will be realized with an attractive UI/UX design and a clean code that is easy to read, support, and implement additional functions. As a progressive software development company, we aim to create the most comfortable, smooth, and stable products for millions of users. Our specialists have developed different services and apps of various scales, importance, and spheres (medicine-related services, uber-like and dating apps, streaming services, news apps, etc). We have a solid understanding of the whole process of the software development cycle so your request will meet all modern requirements and standards. You can check our portfolio and reviews from previous clients below, so do not hesitate to write to me and we will discuss the reason that brought you here! Technologies we use: Flutter, Dart, Swift, Objective-C, Kotlin, Java, C#, JavaScript, PHP, MySQL, iOS SDK, CarPlay, tvOS, watchOS, Android SDK, Android Auto, Android TV, Wear OS, Google Chromecast, ExoPlayer, FFmpeg, RESTful, Sockets and many more!

Working on projects starting $2,000+ ⭐ TOP 1% Expert-Vetted UX Auditor & Product Designer on Upwork I'm a UX Audit specialist and product designer with 9+ years of experience — helping SaaS, fintech, and eCommerce teams find exactly where their product leaks users, then fixing it with clean, evidence-based design. I've delivered 200+ projects for 100+ clients, turning vague "something feels off" into ranked, buildable fix lists. My expertise lies in UX Audits, conversion diagnostics, and product usability — from flow mapping and session-data review to wireframes, prototypes, and polished design systems. 100% Figma expert. Tools I use daily: Figma, Maze, Adobe Illustrator, Photoshop, and XD. Every audit finding is backed by data, not opinion, and every fix comes with a clear rationale your team can act on immediately. I combine data-driven UX research with conversion-oriented design and current UX Audit best practices to find exactly where you're leaking revenue — and design the fix. Whether you need a one-off audit of a single flow or a full product diagnostic, I deliver results backed by real research, not guesswork. → Every leak ranked by revenue impact, not just visual polish. → Clear, buildable fix lists — not vague slide decks. → Business-oriented UX Audits that balance usability and growth goals. One highlight from my portfolio: a UX Audit of a Logistics SaaS platform uncovered the root causes behind slow order processing — the resulting redesign led to a 200% increase in orders, 50% fewer errors, and 30% faster checkouts. If you're looking for a UX Auditor skilled in Figma, Conversion Research, Wireframing, and Prototyping, I'd be glad to help you find out exactly where your product is leaking — and fix it. Common problems I solve: Low sign-ups on your landing page? A UX Audit of your funnel identifies drop-off points — I redesign in Figma with Conversion UX strategies that bring +20–45% sign-ups. High checkout drop-off? A Checkout Flow UX Audit finds the friction — clients see 15–35% less drop-off after the fix. Trial users not activating? An Onboarding UX Audit maps where users stall — SaaS UI and Onboarding Flow fixes improve trial-to-activated users by 30%. Confusing pricing page? A Pricing Page UX Audit plus B2B Web Design rework — expect +28% plan selection. Poor mobile experience? A Mobile UX Audit backed by Responsive Design and PWA fixes — +40% mobile conversion. Users can't find features? A Navigation & IA Audit plus Search & Filters UX in Figma — clients cut tickets and bad reviews by 45%. High churn after first month? A Retention UX Audit identifies the drop-off moment — Subscription App UI fixes reduce churn by 12–25%. Too many support tickets? A Support Flow UX Audit informs Customer Portal, Knowledge Base, and Chatbot UX redesigns — leading to -40% tickets. Marketplace trust issues? A Trust & Checkout UX Audit plus Multi-Vendor Web Design — one jewelry client gained +26% checkouts. Confusing dashboards? An Admin Panel UX Audit plus Dashboard redesign — +20–38% feature adoption. Not sure where to start? A UX Audit is the fastest way to find out — a full diagnostic of your core flow, ranked by revenue impact, delivered as a buildable roadmap in days, not months. Want me to audit your product or redesign a flow that's leaking users? Message me directly — let's chat. UX Audit, Conversion Research, UX Design, UI Design, Figma, Web Design, Wireframing, Prototyping, User Research, Usability Testing, Landing Page, SaaS Design, Responsive Design, Information Architecture, Mockup