🚀 The Top 3% of Talent in iOS & 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 Mobile Development ⚡ 𝐀𝐈-𝐀𝐬𝐬𝐢𝐬𝐭𝐞𝐝 Development Workflows Accelerating Delivery by 30–40% ⚡ Experience Building 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 Mobile Apps, SaaS Platforms & Enterprise Solutions 🤖 Leveraging Modern 𝐀𝐈 𝐓𝐨𝐨𝐥𝐬 Including Cursor, Claude Code, GitHub Copilot, GPT-4/GPT-4o & Claude Sonnet 👉 WHAT YOU GET ✔️ Senior iOS Developer & AI App Developer - 10+ years experience, intelligent high-performance builds, extreme client impact, end-to-end ownership. ✔️ Swift iOS Developer - native modern interfaces, 18–27% user engagement lift, custom ChatGPT integration, and ultimate trust. ✔️ iOS Mobile App Developer - 30–40% faster release cycles, cleaner AI/UX workflows, stronger user retention across Mobile SaaS platforms. 👉 ACHIEVEMENTS ✔️ 10+ years, 17,000+ hours, dozens of products delivered as a native iOS developer, swift developer, and senior full stack developer ai and mobile application developer workflows. ✔️ Massive client impact and direct revenue generated through full-cycle development as a top-performing iOS developer ai specialist and Apple app developer. ✔️ 100,000+ active users on a popular festival companion app where native iOS mobile app development execution lifted repeat engagement by 27%. ✔️ 10,000+ users in Healthcare App and medical-compliant systems where iOS application development cut data friction by 40% using an intuitive doctor directory website layout. ✔️ High-converting generative AI pipelines, 34% faster action handling in E-commerce Marketplace App, smart assistants, and Fintech App deployments as an experienced iOS developer. ✔️ 90% faster mobile processing and local LLM execution, 80% lower client-side crash workload, 65% fewer server-roundtrips through clean API Integration, push notifications, and iOS developer ai features. ✔️ 5–8 weeks shorter Startup MVP to Pilot Launch, 35% fewer bugs through refactor existing codebase tasks, smart automation, and clean App Store submission pipelines. 👉 WHERE I DELIVER ✔️ As an iOS developer ai specialist - engineering smart features, OpenAI API configurations, Claude API integration, voice AI, and generative AI features into native mobile application development. ✔️ As a SwiftUI developer - dynamic systems with pixel-perfect design, smart assistants, local storage, and complex UI layout across iOS mobile app development and Mobile SaaS infrastructures. ✔️ As an experienced iOS developer - native applications and AI-powered mobile application frameworks built from scratch, delivering 30–40% faster iteration cycles. ✔️ As a native iOS developer - clean MVVM, MVC, and Clean Architecture implementation with secure backend API integrations from Early-Stage Prototype to live product launch. ✔️ As an iPhone app developer - complex core features including OAuth, Apple Sign-In, image & vision processing, audio transcription, in-app purchase setups, and multi-tier subscription systems with RevenueCat. ✔️ As a mobile software engineer - handling advanced audio/video solutions, geolocation services, location tracking, Apple Maps, and real-time chat messaging using WebRTC. ✔️ As a long-term iOS developer - driving ongoing maintenance, smart feature enhancement, bug fixing, and performance tuning as a reliable long-term collaboration partner. 👉 INDUSTRY IMPACT ✔️ AI Mobile App & Smart Assistants - ChatGPT integration, custom AI chatbot agents, voice AI features, generative AI prompts, LLM tools, and automated smart recommendations. ✔️ Fintech App & Wallet Systems - secure mobile banking apps, online payment setups with Stripe and PayPal, and robust local data storage solutions. ✔️ Healthcare App & Telemedicine - secure health tracking platforms, medical records access, and real-time data sync for complex health environments. ✔️ Marketplace App & Booking Systems - scalable service marketplaces, real-time booking, automated push notifications via APNs, and interactive user reviews. ✔️ Fitness App & Workout Platforms - custom sports systems, automated coaching apps, and full-cycle development for high-end Golf Training & Coaching Platforms. 👉 HOW I BUILD ✔️ 10+ years as a mobile app developer: engineering applications with Swift, SwiftUI, UIKit, Xcode, OpenAI API, Claude API, and Objective-C for legacy codebase migration and system scaling. ✔️ Architectural patterns and clean execution: utilizing MVVM, MVC, Clean Architecture, and VIPER alongside Core Data, Realm, and Firebase Cloud Messaging. ✔️ End-to-end product deployment: driving the entire cycle from Proof of Concept, prototype development, QA & DevOps integration, up to a successful publish to App Store workflow. Looking for an elite Senior iOS Developer, Swift Developer, or a trusted ai mobile app developer who can build an iPhone application from scratch, build an AI-powered iOS application, or handle full-cycle end-to-end development? Let's connect! Send an invite and let’s talk about your project goals. ☎️

🚀 The Top 3% of Vue.js, Frontend & 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 Engineering Talent ⚡ Experience Building 𝐀𝐈 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐬, LLM-Powered Applications & Intelligent User Interfaces ⚡ Modern 𝐀𝐈 𝐒𝐭𝐚𝐜𝐤: Cursor, Claude Code, GPT-4/GPT-4o, Claude Sonnet & GitHub Copilot 🚀 Available for 40+ hours per week and ready to join ongoing projects, MVP development, product scaling, and long-term partnerships. 👉 WHAT YOU GET ✔️ Senior Vue.js Developer - 11+ years of professional web development experience, 6+ years specializing in Vue.js and NuxtJS, scalable frontend ecosystems, and extreme client impact. ✔️ Nuxt.js Developer & Frontend Engineer - 18–27% search engine visibility and loading speed lift via advanced server-side rendering (SSR) setups, custom backend integrations, and ultimate technical trust. ✔️ Full-Stack JavaScript Developer - 30–40% faster production release cycles, cleaner responsive web application layouts, and enterprise-grade component-based architecture for SaaS platforms. ✔️ AI-Powered Frontend Workflows - leveraging next-gen tools like Cursor, Claude Code, and GitHub Copilot to accelerate code delivery speeds by up to 40% while keeping frontend architecture maintainable. ✔️ AI Product Development & Integration - building custom AI-powered applications featuring native OpenAI API tools, custom ChatGPT integration modules, GPT-4/GPT-4o text processors, and Claude Sonnet/Opus assistant interfaces. ✔️ AI-Assisted Debugging & Optimization - running lightning-fast AI-assisted refactoring models, deep log parsing, and automated AI-powered UI optimization checks to maintain premium, bug-free web experiences. 👉 ACHIEVEMENTS ✔️ 11+ years, 20,000+ hours, dozens of live web apps delivered as a leading front-end developer, modern JavaScript developer, and Vue.js expert across early-stage startup MVP and enterprise application deployment pipelines. ✔️ 100,000+ active users supported on real-time applications and complex administrative setups where clean state management via Pinia, Vuex, and WebSockets lifted user retention by 27%. ✔️ 10,000+ concurrent active data instances managed within healthcare platform modules, fintech platform dashboards, and edtech platform portals where advanced Vue 3 Composition API migration cut client-side layout processing lag by 40%. ✔️ High-converting interactive customer journeys, 34% faster action handling across automated admin dashboard UI layouts, custom SaaS development networks, and e-commerce development frameworks. ✔️ 90% faster web performance scores, 80% lower layout shifts (CLS), 65% better Core Web Vitals rankings through technical frontend optimization, static site generation (SSG), Tailwind CSS structures, and rigorous code refactoring. 👉 WHERE I DELIVER ✔️ As a Vue 3 developer & Nuxt expert - building production-ready apps from scratch using Vue 3, Composition API, Nuxt 3, Vue Router, Pinia, Vuex, and scalable TypeScript developer configurations. ✔️ As an experienced Vue.js developer - executing pixel-perfect conversions from Figma to Vue and Figma to Nuxt using utility frameworks like Tailwind CSS, SCSS, Bootstrap, Vuetify, PrimeVue, and Quasar Framework. ✔️ As a full stack developer & integration wizard - bridging client-server communication effortlessly via secure API integration, RESTful API structures, GraphQL, and complex database validation setups (PostgreSQL, MySQL, MongoDB, Firebase, Supabase). ✔️ As a Vue Laravel expert - engineering robust hybrid enterprise web setups utilizing tight Vue Laravel integration, Node.js backend layers, Express.js pipelines, and Django/Flask Python integrations. ✔️ As a technical frontend architect - configuring high-availability progressive web app (PWA) workflows, adaptive design rules, reusable component libraries, and automated CI/CD deployment logic using Git. ✔️ As a long-term developer - driving continuous application maintenance, frontend code refactoring, legacy framework upgrade Nuxt application milestones, migrate to Vue 3 tasks, and ongoing support and maintenance. 👉 INDUSTRY IMPACT ✔️ SaaS Platform & Admin Dashboards - heavy multi-tenant charts data grids, complex user authorization layers (JWT, OAuth), automated internal ERP development architectures, and CRM development portals. ✔️ Healthcare & Fitness Platforms - accessibility-compliant dashboards, telemetry data charts tracking tables, localized text systems, and interactive real-time scheduling modules. ✔️ Real Estate & Travel Platforms - dynamic map integration layers, multi-filter property matrices. Looking for a reliable Senior Vue.js Developer, NuxtJS Expert, or a trusted Frontend Web Developer who can build a responsive web application from scratch, optimize frontend performance, or serve as a core team member for long-term collaboration? ❗ Click Hire or Invite Senior Vue.js Developer, Frontend Architect & AI-Driven Product Engineer

Hi, I am Andrii, 👋 a highly organized and results-oriented Project Manager with 4 years of experience successfully leading and delivering project. I excel at planning, executing, monitoring, and closing projects on time and within budget. 🚀 My key strengths include clear communication, proactive risk management, stakeholder management, and utilizing project management methodologies (e.g., Agile, Waterfall) to ensure successful outcomes. 💻 I am adept at using project management tools and collaborating effectively with cross-functional teams to achieve client objectives. Let's discuss how I can bring your project to life efficiently and effectively. 😉

Welcome! I’m a Senior Flutter Developer and Flutter App Developer with 10+ years of experience in mobile app development in Flutter, building high-performance, scalable, and user-friendly mobile apps for iOS and Android. As a Flutter Developer, I specialize in Flutter Development, helping startups and businesses create and scale mobile apps in Flutter — from MVPs to complex production systems. I also work as a Full Stack Developer Flutter, handling both frontend and backend integration for complete solutions. 💡 Flutter Development Expertise ✔ End-to-end Flutter Development for scalable products ✔ Building modern mobile apps in Flutter with clean architecture ✔ Strong experience as a Flutter App Developer and Flutter Developer ✔ Advanced Firebase Flutter integration (Auth, Firestore, FCM, Crashlytics) ✔ Experience as a FlutterFlow Developer for rapid MVP delivery ✔ State management: BLoC, Provider, Riverpod ✔ API integration and backend connectivity I focus on delivering mobile apps in Flutter that are stable, maintainable, and optimized for growth. 🔧 Flutter App Development & Enhancement As a Flutter Developer, I don’t just build apps — I also specialize in: ✔ Enhancement of Flutter app performance and architecture ✔ Refactoring and scaling existing Flutter apps ✔ Fixing issues and improving stability in Flutter Development projects ✔ Adding new features and integrations to existing mobile apps in Flutter Whether you need a new Flutter App Developer or support with enhancement of Flutter app, I can help. ⚙️ Full Stack Flutter Development As a Full Stack Developer Flutter, I provide: ✔ Backend integration (Node.js, Firebase, APIs) ✔ Scalable Firebase Flutter solutions ✔ Real-time features and cloud integrations ✔ Payments, notifications, and analytics My experience in Full Stack Flutter Development ensures your mobile app in Flutter is fully functional and production-ready. 🔥 Why Work With Me ✔ 10+ years as a Mobile App Developer & Flutter Developer ✔ Strong expertise in Flutter Development and mobile apps in Flutter ✔ Deep experience with Firebase Flutter and backend systems ✔ Proven track record as a Flutter App Developer ✔ Experience as a FlutterFlow Developer for fast delivery ✔ Focus on enhancement of Flutter app performance and scalability 📩 Let’s Build Your Flutter App If you’re looking for: ✔ A reliable Flutter Developer ✔ An experienced Flutter App Developer ✔ A Full Stack Developer Flutter ✔ Help with mobile app in Flutter ✔ Support with enhancement of Flutter app ✔ Expert in Firebase Flutter or FlutterFlow Developer — let’s connect and discuss your project 🚀

Hi! 🌐 I am Andrii - Experienced Project Manager with a strong foundation in project management methodologies (Agile, Scrum, Waterfall). Proficient in project planning, risk management, budget tracking, and stakeholder communication. Proven ability to lead cross-functional teams, manage complex projects, and deliver exceptional results within budget and on schedule. With a strong background in Agile methodologies, I specialize in managing complex projects in fast-paced IT environments. My expertise spans stakeholder communication, risk management, and resource optimization to ensure project success. Dedicated to achieving outstanding results while fostering a collaborative team culture, I’m here to guide your project from concept to completion. 🚀 Let's collaborate to elevate your projects to new heights.

Most AI products fail not because the technology is wrong but because nobody thought through how people would actually use them. That's the gap I fill. I'm a Full Stack AI Engineer working with startups and businesses to build AI Agents, SaaS products, and automation systems that solve real operational problems not just demos that look good in a pitch deck. From architecture and backend to frontend and deployment, I take end-to-end ownership. You don't need to manage five different contractors I handle the full build. ━━━ WHAT I BUILD ━━━ 🤖 AI Agents & Workflow Automation Custom AI agents that handle real business workflows lead qualification, document processing, customer support, internal operations. Built with LangChain, OpenAI, and n8n so they actually run reliably in production. 🚀 AI-Powered SaaS & MVPs From idea to deployed product I architect and build multi-tenant SaaS platforms, RAG-based knowledge systems, and custom GPT applications that are clean, scalable, and built for growth. ⚙️ Backend & API Development FastAPI, Python, PostgreSQL, MongoDB solid backend foundations with clean architecture so your product doesn't break when it scales. ━━━ TECH STACK ━━━ OpenAI • LangChain • Python • FastAPI • React • Next.js • Node.js • PostgreSQL • MongoDB • Firebase • Stripe ━━━ WHO I WORK WITH ━━━ Founders validating an MVP, startups scaling a product, and businesses automating workflows if you need a technical partner who takes ownership and ships fast, send me a message and let's build something that actually works.

Hello, I'm Ivan, a dedicated Flutter developer with a passion for crafting seamless and visually appealing cross-platform applications. My proficiency extends across a spectrum of technologies, including Flutter, Dart, SQLite, Firebase, and version control systems like GitHub, GitLab, and Bitbucket. Key Skills: 📌 Flutter Development 📌 Dart Programming 📌 Design Patterns 📌 SQLite Database Integration 📌 Firebase Integration 📌 Version Control: GitHub, GitLab, Bitbucket 📌 Socket.IO 📌 Firebase Cloud Messaging 📌 Web Sockets 📌 REST API Integration 📌 Animation Expertise 📌 Data Structures Knowledge 📌 Professional Highlights: Flutter Mastery: With a strong foundation in Flutter, I've successfully developed cross-platform applications that offer a consistent and delightful user experience. Versatile Developer: Proficient in Dart, I implement sound design patterns and adhere to OOP principles, ensuring scalable and maintainable codebases. Data Management: Leveraging SQLite, Firebase, and other technologies, I excel in efficient data storage, retrieval, and management within applications. Version Control Expertise: Adept at using GitHub, GitLab, and Bitbucket, I ensure collaborative development with a systematic approach to version control. Real-time Communication: Leveraging Socket.IO, I've implemented real-time communication features, enhancing the interactivity and responsiveness of applications. Additional Expertise: Firebase Cloud Messaging: I integrate push notifications seamlessly to keep users engaged and informed. Web Sockets & REST API: Proficient in implementing real-time communication and integrating third-party services through RESTful APIs. Animations: Bringing life to applications through engaging and smooth animations to enhance user experience. Why Choose Me: Comprehensive Skill Set: My expertise covers the entire Flutter ecosystem, ensuring that your project is developed with the latest tools and best practices. Collaborative Development: I am committed to transparent communication and collaboration, ensuring that your vision is translated into a feature-rich and robust application. Problem Solver: I approach challenges with a problem-solving mindset, ensuring that your application not only meets but exceeds expectations. Let's discuss how I can contribute to the success of your Flutter project. I'm excited to bring my skills and passion to your team.

I help turn ideas into modern, scalable mobile applications that are built for real users. If you have an app idea, I can help you transform it into a high-quality product that's intuitive, reliable, and ready to launch. With over 4 years of experience in web and mobile development, I work across the entire product lifecycle from planning and architecture to development, testing, deployment, and post-launch improvements. My focus is on building applications that are easy to maintain, perform well, and scale as your business grows. Here’s how we bring your idea to life: Product Discovery & Planning → UI/UX Design → Frontend Development → Backend & API Integration → Quality Assurance & Testing → App Store & Google Play Deployment → Post-launch Support This structured process keeps the project transparent, minimizes surprises, and ensures consistent delivery. I also offer a free 30-minute consultation to discuss your idea and help you make informed technical decisions before development begins. During our call, we can discuss: ✔ Validating your product idea ✔ Choosing the right technology stack ✔ Defining the best software architecture ✔ Estimating development time ✔ Understanding infrastructure and maintenance costs ✔ Prioritizing features for your MVP Throughout my career, I've built and contributed to a variety of applications, including: ✅ Food delivery apps ✅ Courier and driver apps ✅ Digital Influencer Hiring Marketplace App ✅ Medication reminder apps based on prescription schedules ✅ Event management and ticketing platforms ✅ Marketplace applications ✅ School management systems ✅ Administrative dashboards (Back Office) ✅ Firebase-powered applications ✅ Apps with authentication, push notifications, and REST API integrations I also contributed to digital products with more than 60,000 active users, helping improve software quality, stability, testing, and continuous product evolution. My technical expertise includes Flutter, React Native, React.js, TypeScript, Firebase, REST APIs, Clean Architecture, MVVM, SOLID principles, CI/CD, Git, Postman, Swagger, Chrome DevTools, Jira, and modern AI-assisted development tools such as ChatGPT, Claude, Gemini, Codex, OpenCode, and Stitch. Beyond development, I can also help with: ✔ Software architecture ✔ MVP planning ✔ Feature prioritization ✔ API design and integration ✔ App Store and Google Play publishing ✔ Performance optimization ✔ Product evolution and long-term maintenance Whether you're building your first MVP or scaling an existing product, my goal is to deliver software that is clean, reliable, and built to grow. If you're looking for a developer who communicates clearly, writes maintainable code, and genuinely cares about the success of your product, I'd be happy to discuss your project.

Senior Full Stack Developer (5+ years) — APIs · Microservices · Data & Cloud I design and build reliable back ends that scale. For a decade I’ve turned business goals into secure APIs, resilient services, and clean data layers—speeding releases and reducing production noise. I’m comfortable joining greenfield builds or rescuing complex systems and leaving them faster, safer, and easier to maintain. How I can help Architecture & new services: domain modeling, microservices/monolith, event-driven patterns API-first delivery: REST/GraphQL/gRPC, versioning, rate limiting, pagination, OpenAPI docs Data layer: PostgreSQL/MySQL schema design, migrations, indexing, caching (Redis), search (Elasticsearch) Performance & reliability: profiling, queues/workers (Kafka/RabbitMQ/SQS), background jobs, circuit breakers, idempotency Security: OAuth2/JWT, RBAC/ABAC, secrets management, OWASP hardening, audit logs Integrations: payments (Stripe), email/SMS, 3rd-party partner APIs, SSO/IdPs DevOps enablement: Docker/Kubernetes, CI/CD, IaC basics (Terraform), observability dashboards and alerts Rescue & modernization: audits, refactors, test coverage, strangler pattern, cost optimization Tech stack Node.js/TypeScript (NestJS, Express) • Python (FastAPI, Django/DRF) • Go (Gin/Echo) • Java (Spring Boot when needed) • PostgreSQL/MySQL • MongoDB • Redis • Elasticsearch • Kafka/RabbitMQ/SQS • Docker/K8s • AWS/GCP/Azure • GitHub Actions/GitLab CI • OpenTelemetry, Prometheus/Grafana, ELK • Jest/pytest/go test, Pact for contract tests. What you get Maintainable code, predictable timelines, and transparent communication Practical suggestions to reduce scope and cloud cost—without cutting quality A partner who treats reliability, security, and documentation as non-negotiable Have a brief, repo, or backlog? Share it and I’ll reply with a short action plan—quick wins, timeline, and how we’ll measure success for your next release.

I’m a Senior React Developer and Frontend Developer specializing in React.js, React JS, and Next.js development. As a React Developer, I build fast, scalable, and high-performance React applications for startups, SaaS companies, and product teams. With deep expertise as a React.js Developer, I focus on creating modern React architectures, reusable React components, and responsive frontend interfaces that deliver excellent UX and strong performance. I help businesses turn ideas into production-ready React applications, SEO-optimized Next.js apps, and high-converting frontend products. 💼 Why Clients Choose Me as a React Developer ✅ 2000+ projects successfully delivered on Upwork ✅ Upwork Breakthrough of the Year Winner ✅ Clutch-recognized B2B development partner Clients choose me as their React Developer because I combine strong React.js development skills with real product thinking — focusing on performance, scalability, and business growth. 💻 Core Expertise — React & Frontend Development ✔ React.js Development – scalable React applications and reusable component architecture ✔ Next.js Development – SSR, SSG, and SEO-friendly React apps ✔ Frontend Development – modern UI, responsive layouts, and clean code ✔ React Native Development – cross-platform mobile apps using React Native ✔ API Integrations – Stripe, Firebase, Supabase, Auth0, PayPal As a React Developer, I build React applications optimized for speed, usability, and long-term scalability. ⚡ What I Can Help You Build • Modern React.js applications • Next.js SaaS platforms • High-performance React startup MVPs • Dashboards and admin panels • Marketplace and platform interfaces • React Native mobile applications • Complex React frontend systems integrated with APIs 🧠 Tech Stack — React Frontend Developer Frontend Development React, React.js, React JS, Next.js, JavaScript (ES6+), TypeScript, HTML5, CSS3 Mobile Development React Native UI Development Tailwind CSS, Material UI, Shadcn UI, Styled Components, Bootstrap, Figma State Management Redux Toolkit, React Query, Zustand, Apollo Client Performance & Optimization Lazy Loading, Code Splitting, Framer Motion, GSAP Testing & CI/CD Jest, Cypress, GitHub Actions ⚙️ My Development Approach ✔ Clean and scalable React.js architecture ✔ Fast delivery of production-ready React applications ✔ Performance-optimized Next.js development ✔ User-focused Frontend Development ✔ Clear communication and proactive collaboration 📩 Let’s Build Your React Product If you're looking for a React Developer, React.js Developer, Next.js Developer, or Frontend Developer who can build: • scalable React applications • modern Next.js apps • high-performance SaaS platforms • cross-platform React Native apps — feel free to message me. Let’s build a fast, scalable, and user-focused React application that drives real results 🚀