Hire the Best Adobe AIR Developers
in Ukraine

Your application can get successful and raise up to 1M users and more. Yoy will never get into endless development. You'll get clear communication, professional support and constant collaboration. Responsibility, creativity, thinking over the code to whole project and making things done. I’m Olex, your full stack developer with 12+ years of programming experience and 8+ of in full stack development experience. I always think about my clients needs first and always share my ideas or doubts about a project I make. I'm honest and fair. I'm confident and I'm actively using AI in my work that helps me to fasten my work up to 20%. Why Choose Me as Your Full Stack Developer? ✅ 8+ years of mobile + back-end development experience ✅ 30+ created full stack systems ✅ 50+ succesfully finished projects on Upwork ✅ 20+ 5-star ratings and glowing client reviews on Upwork ✅ 10+ returning clients ✅ Ranked among the top 10% of Mobile App Developers ✅ End-to-end support from concept to release ✅ AI-powered full stack developer: applications that invokes LLM API integration to provide intelligent, interactive, and context-aware mobile solutions What my client say ⭐️ Oleksii demonstrated himself as a true professional: his deep knowledge and expertise were evident in every response. He not only thoroughly analyzed all aspects of the project but also suggested many valuable ideas I hadn’t even considered. ⭐️ Alex is great. Approaches all tasks by looking at the big picture and working through details with intelligence. Alex helped is get three Apps to production on both iOS and Google Play. Couldn't have done this without him. ⭐️ I’m delighted to share my enthusiasm for working with Alex. From the very beginning of our collaboration, he has demonstrated himself as a professional with a high level of responsibility. Communication with him was extremely comfortable: Alex was always available to discuss issues and responded promptly to messages. ⭐️ Oleksii has it all - incredible work, a strong conviction, incredibly insightful and communicative to problem solving. Could not recommend him more ⭐️ Excellent communication skills. The task was completed on time. My Tech Stack as Full Stack Developer: • Mobile App Languages: Swift, SwiftUI, Objective-C, Kotlin, Java, Flutter, React Native • Web App Applications (RWA): React • Back-end & Web Languages: Javascript, Python, PHP • Back-end integration: Node.js, FastAPI, Lavarel, Firebase, AWS, Supabase • Integrations: APIs, Payment Gateways, Push Notifications, In-app purchases, BLE devices • Approach: Agile Development CI/CD • A Full-stack & Mobile App Developer with deep understanding of mobile ecosystems and experience Core Expertise as a Full Stack Developer: • iOS & Android Mobile App Developer • React web developer • Back-end Node.js, Lavarel & FastAPI Developer • Streaming & Media – real-time video & audio • AI - integrating modern AI APIs, prompt engineering What You Get Working With a Dedicated Mobile App Developer: ✅ Native or Cross-platform apps optimized for speed, stability, and scalability ✅ Web RWA appls optimized for speed, stability, and scalability ✅ Expert-level integrations with IoT, APIs, sensors, and wearables ✅ Clear, consistent communication and progress tracking ✅ Back end implemented by specific case or task with high-load optimisation ✅ Solutions that count in and reduce to zero security risks ✅ Architecture designed for future growth and long-term success 🙌 Let’s talk about your project more deeply and crack the rock together. Click "Invite to Job" or "Hire Now" to start making great smooth and successfull applications!

I build production mobile apps and the backends that power them – from architecture to App Store. When a project needs system design before code, I deliver that too. Over 20 years I've shipped iOS and Flutter apps across industries that demand reliability: medtech (RYAH — BLE-connected medical inhalers with real-time device logging), fintech (mobile payment platform, leading a team of 4), POS systems (Clover — dual-pricing app with Flutter web + Kotlin Android + Firebase backend), automotive HMI (Ferrari F152 at Luxoft), and enterprise banking (Deutsche Bank). I work as a sole developer or lead small teams, and I own the full delivery lifecycle: architecture, development, CI/CD pipelines (automated builds to Slack and TestFlight on git push), and release management. My experience in project coordination and requirements analysis allows me to step into PM and BA roles when the project calls for it. What I bring that most mobile devs don't: → Server-side Swift with Vapor — I maintain Passage, an authentication framework in the vapor-community GitHub org. JWT, OAuth, passwordless login, email/phone verification, and account linking as composable modules. → Full-stack Firebase — Cloud Functions, Firestore, Realtime Database, Hosting, Messaging. Not just "I've used Firebase" — I architect complete backends with it. → Deep native integration — CoreBluetooth/BLE, HealthKit, PassKit, NFC. At RYAH I redesigned the command throttling layer and cut Bluetooth packet loss by 95%. The kind of work that breaks most mobile developers. → Cross-platform development — I build and ship Flutter apps to both App Store and Google Play (B2B Merchants PR, Sapphire Blessings). At anyIP I designed and maintain client SDKs across Swift, Android, Flutter, Unity, and React Native, all bridging to a Rust core via FFI/JNI and distributed through SPM, Maven, pub.dev, and npm. → SwiftUI architecture — I prefer to lean on what the platform provides: native dependency injection via Environment, @Observable for state management, and AsyncSequence/AsyncStream for reactive data flow. No heavy third-party frameworks where Apple already solved the problem. → Solution architecture — when the build can't start until the design is right, I deliver: system architecture documents, component diagrams, API specifications, data flow diagrams, integration strategies, tech stack recommendations, and implementation roadmaps. ERD, DFD, UML, BPMN when the team needs them. I'm an active open-source contributor with 65 public repositories on GitHub. 📱 Mobile: Swift, SwiftUI, UIKit, Objective-C, Flutter/Dart, Android (Kotlin, Java), React Native, Unity 🖥 Backend / Web: Node.js, TypeScript, Vapor (Swift), Express.js 🗄 Databases: Firestore, Realtime Database, MongoDB, PostgreSQL, MySQL, Redis, Realm, Couchbase ☁️ Infrastructure: AWS, Google Cloud (CloudRun), Docker ⚙️ DevOps & Tools: Git, GitHub Actions, Bitrise, Codemagic, Fastlane, Xcode, Firebase 🧠 Practices: Clean Architecture · FRP State Management · Reactive & Functional Programming · TDD/BDD · CI/CD · DDD · SOLID (single-responsibility, open-closed, dependency inversion and friends) · GRASP (assigning responsibility to the right objects — information expert, creator, low coupling, high cohesion)

As a software developer since 2005, I've worked across various professional fields, including: • E-commerce and AI API integrations • Multimedia, rich user interfaces and game development • Web development: frontend, backend and middleware • Databases and CRM solutions • Accounting and real estate industry solutions • Interactive mapping, navigation and weather services

I help brands and agencies create HTML5 banner ads that pass Google Ads, Amazon DSP, and other ad platform requirements without issues. 15+ years of experience in animation and banner development. I deliver clean, optimized, and production-ready files — no rejections, no surprises. Platforms I’ve worked with: ✔ Google Ads (HTML5) ✔ Amazon DSP ✔ IAB standards ✔ Adform, Sizmek, DoubleClick (GWD) ✔ Custom ad networks and rich media platforms What I can do: ✔ HTML5 banner ads (all standard sizes) ✔ Interactive creatives (clickable elements, mini-games) ✔ Adobe Animate (CreateJS) and GSAP animations ✔ Flash/SWF to HTML5 conversion ✔ Fixing, optimizing, or rebuilding existing banners Why clients choose me: • I understand platform limitations, specs, and approval rules • Smooth, lightweight animations with size limits in mind • Fast turnaround and clear communication • Reliable results — ready to upload and launch If you need banners that actually work across different ad platforms — I can help.

As a forward-thinking Senior Engineer and Team Leader with over two decades of experience, I work as a full stack developer specializing in Video Streaming and real-time communication solutions based on WebRTC. I combine strong architecture thinking with hands-on delivery, acting both as a technical leader and a practical full stack web developer who understands real product needs and builds scalable WebRTC-powered systems. Today, my focus as a full stack developer includes the strategic application of advanced AI technologies alongside WebRTC-based real-time communication platforms. I actively work with OpenAI APIs, Whisper for speech recognition, LLaMA2 for open-source large language models, and LangChain for building AI-driven workflows. This positions me as a full stack developer AI who can integrate intelligence directly into real-world WebRTC video and streaming products. Throughout my career as a full stack developer, I’ve contributed to Telemedicine, Online Education, and Real-time Entertainment by building WebRTC-powered communication platforms. I’ve led teams delivering webinar platforms, live chat systems, and complex real-time applications, acting both as a senior web developer and system architect who ensures scalability, security, and long-term maintainability for WebRTC infrastructures. In AI-focused projects, I operate as a full stack developer who bridges data, logic, and user experience inside WebRTC-enabled applications. My team and I integrate conversational AI, speech-to-text, and knowledge-driven systems using OpenAI, Whisper, and LLaMA2. With LangChain, we design intelligent pipelines that automate workflows and data processing, enhancing WebRTC communication platforms with AI-driven capabilities. WebRTC remains a core part of my work as a full stack developer, especially for building high-performance real-time systems. We design everything from low-latency WebRTC infrastructure to complete applications, delivering solutions that work seamlessly across web and mobile. This includes building scalable video streaming app architectures capable of handling thousands of concurrent users through WebRTC. As a full stack developer, I also provide consulting and development services across North America and Europe, helping companies design and build WebRTC-based video communication platforms. I work with companies in Entertainment, E-Learning, Healthcare, and Finance. Depending on project needs, I act as a React developer, Wordpress developer, or mobile app developer while implementing scalable WebRTC solutions. Our services as a full stack developer team include system architecture, UI/UX design, and custom development of WebRTC streaming and real-time communication platforms. We build modern interfaces, robust back-ends, and real-time systems, including secure WebRTC video stream delivery for live and on-demand use cases. We have worked with most of the major Webinar and Online Education platforms on the market, delivering solutions as a full stack developer team that understands both the business and technical sides of WebRTC video streaming products. We frequently modernize existing platforms and migrate legacy systems to scalable cloud-based architectures built around WebRTC technologies. As a full stack developer, I’ve led the creation of webinar systems, live chat apps, WebRTC video conferencing platforms, real-time video auctions, messengers, e-learning platforms, telemedicine solutions, dating apps, Twitch-like platforms, TikTok-style apps, VoD systems, and live shopping platforms. Many of these solutions rely on modern stacks including full stack developer React and full stack Lavarel approaches integrated with WebRTC. Beyond development, I support clients as a full stack developer with load testing and performance optimization for large-scale WebRTC streaming systems. My background across front-end, back-end, databases, and cloud platforms allows me to lead projects end-to-end and deliver reliable, production-ready WebRTC platforms. I invite you to collaborate with me as a full stack developer who understands AI, WebRTC, and scalable real-time product development. Together, we can build innovative WebRTC-powered solutions that align with your business goals and grow with your users.

Are you looking for a professional software developer who can solve unsolved tasks, is highly organized, and has deep knowledge and experience developing optimized and robust code? I'm an experienced and dedicated professional with over 16 years of experience in designing, developing, implementing, and supporting software solutions. My aim is to create fast, lightweight, and highly optimized solutions that perform well with minimal use of system resources. My favorite kind of work is solving unsolvable problems. My main skills are fast learning and ongoing professional development. Last two years I made mostly cross-platform desktop/mobile applications on the Qt framework using C++, QML, and CMake. Difficult unsolvable problems are my favorite job. And I am sure that my experience, knowledge, and enthusiasm will help to solve any of your problems.