I help startups and businesses build scalable SaaS products — from MVP to production-ready platforms used by real users. I’m a Full Stack Developer with 11+ years of experience working with startups, agencies, and growing companies. I focus on building reliable systems that not only work but scale efficiently under real-world. I take full ownership of the product — from architecture and backend logic to frontend performance, integrations, and deployment. Frontend Development (React / Next.js) I build fast, scalable, and SEO-friendly user interfaces with a strong focus on UX, performance, and maintainability. Core Expertise React.js, Next.js (App Router & Pages Router) TypeScript for scalable and safe codebases SPA, SSR, SSG, ISR architectures Performance optimization & Core Web Vitals SEO-friendly web applications UI & Styling Tailwind CSS, MUI, Styled Components Design-to-code (Figma → Pixel-perfect UI) Reusable component systems & design systems Responsive, accessible, mobile-first layouts Backend Development (Node.js / Python) I design and implement secure, scalable backend systems capable of supporting high-traffic SaaS platforms and complex business logic. Backend Technologies Node.js, Express, NestJS Python, FastAPI, Flask REST APIs & GraphQL Microservices architecture Background workers, queues, cron jobs Security & Authentication JWT, OAuth, session-based auth Role-based access control (RBAC) Permissions, multi-tenant architectures Security hardening & best practices AI, LLM & Machine Learning Solutions I develop AI-powered applications that leverage Large Language Models (LLMs) and machine learning pipelines to automate workflows and unlock new capabilities. AI & ML Expertise OpenAI (GPT-4, GPT-4o, embeddings) LLM-powered chatbots & assistants AI automation & agent-based workflows Vector databases (Pinecone, FAISS, Weaviate) Semantic search & RAG (Retrieval-Augmented Generation) Prompt engineering & fine-tuning ML model integration & inference APIs Use Cases AI SaaS products Internal AI tools & copilots CRM AI automation Knowledge-base chatbots AI-driven analytics & insights Databases, Cloud & DevOps I handle end-to-end infrastructure, from database design to cloud deployment and CI/CD automation. Databases PostgreSQL, MySQL MongoDB Redis (caching, queues, sessions) Cloud & Infrastructure AWS, DigitalOcean, Azure Vercel, Docker Serverless & containerized deployments DevOps CI/CD pipelines (GitHub Actions, GitLab CI) Environment configuration & secrets management Monitoring, logging & scaling strategies Integrations & Advanced Features Payment systems: Stripe, PayPal, subscriptions & billing Real-time systems (WebSockets) Third-party API integrations CRM systems & internal dashboards Multi-tenant SaaS platforms Analytics, tracking & reporting systems What I Build (Enterprise-Grade) :office: Enterprise Products & Platforms SaaS platforms (enterprise-ready MVPs → large-scale systems) Custom web applications built for long-term growth CRM systems tailored to complex business workflows Marketplace platforms with multi-vendor and multi-tenant architecture AI-powered products using LLMs and ML pipelines Internal business tools for operations, analytics, and automation :gear: Systems, APIs & Integrations Public & private APIs (REST, GraphQL, AI/LLM APIs) Microservices & service-oriented architectures Real-time systems (WebSockets, event-driven architecture) Subscription, billing & payment platforms Third-party integrations (payments, analytics, messaging, AI) Performance, Scale & Optimization High-performance application optimization Scalability planning & load-ready architecture Database & query optimization Cloud infrastructure & cost optimization SEO, Core Web Vitals & frontend performance optimization Reliability, Security & Maintainability Secure authentication & authorization (JWT, OAuth, RBAC) Enterprise-grade code quality & testing CI/CD pipelines & deployment automation Monitoring, logging & incident readiness Clean architecture for long-term maintainability Why This Matters to Enterprise Clients Reduced technical risk Predictable delivery & ownership Systems designed to scale, not be rewritten Clear communication & documentation Engineering aligned with business goals Why Clients Hire Me True full-stack ownership (frontend, backend, infrastructure, AI) Clean, readable, and maintainable code Strong UI engineering + strong backend systems (rare combination) Business-focused mindset, not just technical execution Clear communication & consistent progress updates Long-term architecture planning & support I don’t just “build features” — I help you build a product that lasts. Full-Stack Developer, SaaS Developer, React Developer, Next.js Developer, Node.js Developer, Python Developer, Backend Developer, Frontend Developer

Full stack developer with 10 years of experience | top 1% on Upwork ( Expert-Vetted ) I turn ideas into real applications your users can depend on Recent work: → Product Architect at Upwork, leading a team of 100+ engineers within Upwork's Engineering Talent Cloud → Led frontend for Autobound's AI sales automation platform - grew from a single-engineer startup to $4M raised and millions in revenue (Vue.js/Nuxt + Chrome extension + micro-frontends) → Built full stack for Augmento's AR/VR product - used by 1,000+ brands and 100K users across retail and real estate → Migrated DriverHRIS - 1,000+ screens from Vue 2/.NET to Vue 3 + Node.js microservices, with a 10x (1,000%) performance gain → Rebuilt Wawibox (German dental marketplace) - full Nuxt 2 → Nuxt 3 SSR → Nuxt 4 migration, 80% faster load time I also co-founded Softonix, a 25-engineer Vue.js | Node dev team in Lviv - so if your project grows past one developer, I can scale the team without handing you off to strangers. Want to scope something? Let's talk - I usually reply within a hour 🚀 Keywords web developer, react developer, wordpress developer, mobile app developer, SQL, Software Design, Application Improvement, Software Development, Software Debugging, CSS, Software Consultation, Git, HTML, Back-End Development Framework, Full-Stack Development, Database Architecture, Agile Software Development, Node.js, Laravel, Bootstrap, Web Application, WordPress, Tailwind CSS, Python, MySQL, Shopify, PHP, JavaScript, Web Design, Desktop Application, Software Testing, API, jQuery, Vue.js, CSS 3, Standalone Application, React, HTML5, Software Architecture & Design, Angular, API Integration, Front-End Development Framework, Adobe Photoshop, React Native, blockchain developer, MongoDB, full-stack web developer, mern stack developer, ios app, php developer, game developer, Graphic Design, full stack developer, c#, front end developer, full stack web developer, front end web developer, web developer wordpress, web app developer, shopify web developer, Web Development, Responsive Design, WooCommerce, Cross Browser & Device Compatibility, Website, Website Security, Website Migration, Website Backup, react native developer, python developer, full stack react developer, react developers ethiopia, react js developer, react web developer, Front-End Development, React Bootstrap, TypeScript, Redux, wordpress website, shopify developer, seo, WordPress Customization, WordPress Plugin, bbPress, WordPress Backup, WordPress Installation, WordPress Optimization, Elementor, WordPress Development, WordPress Security, WordPress Migration, WordPress Bug Fix, WordPress Theme, WordPress SEO Plugin, flutter developer, Mobile App Development, Native App Development, Mobile App Design, App Development, Social Media Account Integration, Android App Development, Mobile App, Swift, Kotlin, iOS Development, Java, Mobile App Improvement, User Profile Creation, Mobile App Testing, Hybrid App Development, Flutter, Smartphone, Mobile App Bug Fix, Android, Mobile App Redesign I am not a mobile app developer but I have such capacity in my team. I am full stack developer and software architect with 10 years of experience and highest posible AI adoption expertise. I am web developer fullstack Software developer Test section: Next.js, GitHub, OpenAI Codex, Code Review, Cursor, SEO Performance, Affiliate Marketing, Affiliate Marketing Website Vercel, Strapi, Amazon API, CMS, Analytics, Conversion Optimization, Recommendation Engine, Prompt Engineering, Fractional CTO, Technical Product Manager, Startup Tech Lead AI Agent Development, AI Development, Amazon Web Services Postgres, AWS, OpenAI API, Claude API, LLM, AI Agent, Anomaly Detection, Document Parsing, Enterprise UI, Manufacturing, B2B, Salesforce, Vue 3 , React, vuex Want to scope something? Let's talk 🚀

🏆 Top 3% on Upwork. ✅ Fluent English. ✅ Swift response and communications. We are BN Digital, a team of creators, software engineers, and strategists. Companies like Microsoft, Cambridge University, Snap, hire us when they want to have a reliable partner who cares abut their customers. We worked with dozens of the world’s largest brands and partnered with hundreds of innovative startups, helping them grow and succeed by unleashing the power of design and technology. What are the main things I can help you with: 🔮 Understanding how your idea could be brought to life via business analysis, right technology stack, and proper processes and practices; 🔮 Saving time and money via rapid prototyping, creating proofs of concepts, defining and launching a minimum valuable product; 🔮 Bringing your idea to real customers via assigning the right team and moving through software development cycle; 🔮 Lowering development risks and costs via precise and technically feasible requirements and product management; 🔮 Deploying bullet-proof solutions, creating efficient, scalable infrastructure, and setting up swift, reliable CI/CD processes. Our technology stack and capabilities: 🧑‍💻 Front end: React.js, Vue.js, HTML5, CSS3, Javascript, Typescript 🧑‍💻 Cross-platform frameworks: Flutter, Dart, React Native, Javascript, Typescript 🧑‍💻 Back end: Node.js, Firebase, PHP, Symfony 🧑‍💻 Databases: MongoDB, DynamoDB, PostgreSQL, MySQL/MariaDB 🧑‍💻 Infrastructure: Kubernetes, Docker, GitHub, AWS, Azure, DigitalOcean 🧑‍💻 Integrations: Stripe, Google, Mailchimp, Hubspot, 🧑‍💻 Handy additions: Ant.d, Storybook.js, D3.js, Kafka, RabbitMQ, Terraform, IaaS 🧲 Our team capabilities include: UX Design, UI design, Prototyping, Interaction design, Branding, Animations and lnteractions creation Industries and solutions we excel in: 🚀 Fintech, financial services: finances governance, pricing tools, reporting, self-service tools, data visualization, KYC; 🚀 Proptech, real estate: booking systems, marketplaces, property governance, risk management; 🚀 Healthtech, healthcare, wellness, fitness: various trackers, personal assistants; 🚀 Adtech, marketing: marketplaces, booking system, risk management tools; 🚀 System-as-a-Service platforms: onboarding, user conversion, customer retention. What does this mean for you? ✅ You get a real partner who has your best interests at heart, and we will not let you back the wrong horse; ✅ You access to top-notch expertise in digital product development for a variety of verticals; ✅ Whoa, you read through this list. We appreciate it. You'll find many small cool things while working with us, like this immediate 5% discount for the first 100 hours of a scope; ✅ You acquire a massive amount of proven solutions, practices, and processes, which would boost your productiveness and efficiency. Whether you are a new startup or an established enterprise, our team is here to help. Please get in contact, and I provide an assessment of what your project needs to be successful. Keywords that you can use to find me: Custom software, software development, web development, web app development, application development, UI development, development expert, platform development, software development, guidelines, continuous development, desktop, iPhone, application, usability, website, responsive, adaptive, long term, effective, productive, experienced, React,React.js, ReactJS, Strapi CMS, Stripe API, CMS, Vue.js, HTML5, CSS3, HTML, CSS, javascript, typescript, Node.js, Node, MongoDB, GitHub, GitLab, BitBucket, agile, scrum, kanban, Jira, Asana, Trello, Pug, Blade, EJS, SASS, SCSS, LESS, Stylus, Redux-thunk, webpack, Gulp, RxJS, SQLite, PostgreSQL, Kubernetes, K8s, Docker, Docker Swarm, Ansible, Github, CI/CD, Continous integration, Continous delivery, terraform, infrastructure, Portainer, Grafana.

Being top rated plus isn’t just a badge, it's the payoff for years of shipping quality code, solving real problems, and helping startups scale (some even raised millions 💸) If you're looking for someone who can take your idea from a paper sketch to a polished product, be it for web or mobile, write clean, scalable code, deliver on time and within budget, and not ghost you mid sprint, you're in the right place. I am an AI driven Full Stack Expert, who specializes in building fast, reliable, and beautiful apps across web and mobile. Whether it's a quick MVP or a full-scale product launch, I've got you. Tech I vibe with: React.js, Next.js, Node.js, Nest.js, Angular.js, Vue.js Django, Ruby on Rails, Flutter, React Native GraphQL, MongoDB, MySQL, Firebase, Restful APIs Tailwind, SASS, Redux, React Query Communication/Management tools that I use: JIRA, Trello, Figma, Github, Clickup, Teams, Monday.com I’ve also been long playing with and working on the cutting edge tools like ChatGPT, GPT4, Dall-E, Voice AI, AI Agents, DeepSeek, Grok AI, Claude AI, Azure AI, OCR, NLP, TTS and STT (Text to Speech and Speech to Text), so if you’re building something futuristic (or want to), let’s talk 🤖 Let’s turn your vision into something people actually love using. Ping me whenever you're ready and we'll get the game on!🧐

I'm a dedicated full stack AI Mobile App and Web Developer with over 10+ years of hands-on experience turning ideas into reliable, scalable, and user-focused digital platforms. I specialize in building end-to-end solutions that not only meet business goals but are also intuitive and efficient for end users. Here is what I bring to the table: **Mobile App Development** From concept to deployment, I’ve delivered high-performance mobile apps across multiple industries. My experience covers but not limited to: -On-demand food delivery platforms -Virtual healthcare and telemedicine apps -Ride-hailing and mobility services -Bidding and auction-based systems -Social discovery and dating platforms -Online marketplaces and retail apps Technology stack I am proficient in: -React Native -Flutter -Swift -Kotlin **Web Development** I create fast, responsive, and purpose-driven websites and web apps tailored to your industry and customer needs. Whether you're a startup or an established brand, I build solutions that drive results. Expertise Includes: -Custom-built applications using Node.js, React.js, Nestjs, Nuxtjs, Python, and PHP -WordPress development with fully custom themes and plugins -E-commerce platforms such as Shopify, WooCommerce or custom solutions What Sets Me Apart -Full-time availability 40+ hours and long-term commitment -A balanced focus on clean code, clear UX, and performance -Full-cycle development from strategy and design to backend and launch -Clear, consistent communication and timely delivery every step of the way If you’re looking for a reliable tech partner who values quality and long-term collaboration, let’s connect. I’d love to learn more about your project and how I can help bring it to life.

Are you looking for a Flutter developer who can turn your idea into a fast, scalable, and user-friendly mobile app for Android and iOS? You’re in the right place. I’m a Flutter Mobile App Developer with 6+ years of experience building cross-platform mobile applications focused on performance, clean architecture, and excellent user experience. I help startups and businesses launch reliable mobile apps with modern features such as AI integration, Firebase backend, and REST APIs. I can help you: ✅ Build MVPs and full-scale Flutter mobile apps ✅ Integrate Firebase, APIs, and third-party services ✅ Add AI-powered features and chatbots ✅ Improve performance and fix bugs ✅ Publish apps on Google Play Store & Apple App Store 🛠️ Flutter Development Expertise 📱 Flutter & Mobile App Development 🔹 Flutter & Dart 🔹Android & iOS cross-platform apps 🔹State Management: Provider, Bloc, Riverpod, GetX 🔹Clean Architecture & MVVM 🔹Responsive UI & custom animations 🔥 Backend & Integrations 🔹Firebase (Auth, Firestore, Storage, Notifications) 🔹RESTful APIs & backend integration 🔹Google Maps & location-based apps 🔹Payment gateways & in-app purchases Push & local notifications 🤖 AI Features 🔹AI chatbots & automation 🔹OpenAI / GPT API integration 🔹Smart app logic & personalization ⭐ Why Clients Work With Me ✅ 100% Job Success Score & Top Rated on Upwork ✅ Clean, scalable, and maintainable code ✅ Clear communication & daily progress updates ✅ On-time delivery ✅ Long-term support & maintenance I don’t just write code — I help you build a product that users enjoy and businesses can grow with. 🚀 Industries I’ve Worked With AI Apps | Healthcare | Education | E-commerce | Social Media | Sports | News | Utility & Custom Apps If you’re planning to build a Flutter mobile app or improve your existing one, let’s talk. 📩 Send me a message and let’s build your app step by step.

Hi, I am a highly skilled senior developer with 7+ years of experience in the IT industry. I specialize in mobile development (Flutter, FlutterFlow, React Native, iOS, Android). I strive to create applications with seamless and intuitive user experiences. I've successfully deployed more than 70 projects in the market. 🏅TOP RATED PLUS💎 🏅7+ years of experience💎 🏅Certified Experts in Flutter/FlutterFlow 💎 🏅 Recognised as the most active member on the FlutterFlow platform in 2023 and 2025💎 🛠 Technical Expertise: 📱 Mobile Development: Flutter, FlutterFlow, Dart, React Native, Swift, iOS, Android 🌐 Web Development: Next.js, React.js, Vue.js, Node.js, Express, Redux Toolkit, Context API 🔥 Firebase: Real-time Database, Firestore, Authentication ☁️ Cloud Services: AWS, GoogleCloud, Azure, Docker 🗂 Database Management: MySQL, MongoDB, PostgreSQL 🛠 DevOps Tools: Git, Docker, Jenkins ✨ Key Skills: 🎨 Front-End Development: Pixel-perfect design and responsive interfaces. 🌍 Cross-Platform Development: Expertise in developing apps for both iOS and Android. 🔗 API Integration: Seamless communication between front-end and back-end. 🚀 Deployment: Managing app and website deployment on various cloud platforms. Industry Experience: 🛒 eCommerce 💻 EdTech 🩺 Health Care (Teleconsultation) 🏦 FinTech 🛵 On-Demand (Food Delivery, Grocery Delivery) 🔋 Electric Vehicle (EV Charge Booking, eScooter Sharing) It is my business to develop your business. Let's work together to bring your vision to life or take your project to the next level! Thank You

### Top Rated Plus Mobile App Architect for AI-Ready, Scalable Products I help founders and product teams build **well-engineered MVPs and scalable mobile applications** — designed to validate ideas quickly *and* evolve smoothly as the product grows. As a **Top Rated Plus** mobile app architect with **12+ years of experience**, I’ve delivered complex iOS, Android, and cross-platform apps involving **AI, HealthKit, AR, real-time features, and secure backend integrations** on large, long-term engagements. My focus is on building the **right foundation early**, so your MVP doesn’t need a painful rewrite once traction arrives. ## How I Add Value Clients typically work with me when they want to: * Build an MVP that’s **lean, clean, and future-ready** * Add **AI features** thoughtfully (not as bolt-ons) * Implement HealthKit, AR, or real-time functionality correctly * Scale their app with confidence after validation ## Core Expertise ### AI-Enhanced Mobile Apps * GPT-powered chat, AI search, and content generation * Whisper voice transcription & voice-driven UX * Vision API, CoreML, TensorFlow Lite * Personalization & recommendation systems ### Native & Cross-Platform Development * **iOS:** Swift, SwiftUI, HealthKit, ARKit * **Android:** Kotlin, Java, ARCore * **Cross-platform:** React Native & Flutter ### MVP → Scale Architecture * Modular, maintainable, and extensible app design * Clean codebases that support iteration and growth * App Store & Play Store–compliant builds ### Real-Time & Advanced Features * Live chat, GPS tracking, geo-fencing * Push notifications, video, Firebase * Stripe payments, REST & GraphQL APIs ## Why Clients Choose Me * **Architect-Level Thinking** I design MVPs and products with long-term evolution in mind. * **Hands-On Execution** I stay involved from design decisions to production code. * **Product Awareness** I help teams balance speed, quality, and business goals. * **Proven Trust** Backed by **Top Rated Plus status**, 5-star reviews, and high-value projects. ## Selected Project Highlights * AI-powered HealthTech app using **CoreML + GPT + Apple HealthKit** * AR kitchen planning app from Figma to development-ready architecture * Voice-activated iOS productivity app using **Whisper API** * Scalable eCommerce mobile app with **Stripe & custom CMS** ## Tech Stack Swift | Kotlin | Java | Dart | TypeScript React Native | Flutter | Firebase | CoreML | TensorFlow Lite OpenAI APIs | HealthKit | ARKit | REST | GraphQL MVVM | Clean Architecture | Modular App Design ## Who I’m a Good Fit For ✅ Founders validating ideas through MVPs ✅ Startups preparing to scale ✅ Teams that value clean architecture and reliability If you’re looking for a **Top Rated Plus mobile architect** who can help you **build an MVP the right way and scale it confidently**, let’s connect. — **Sid**

I build native iOS and Android applications that work in the real world, in the field, offline, in complex physical environments where most mobile solutions fall apart. My focus is on technically demanding work: augmented reality and spatial computing, LiDAR-based 3D reconstruction and site scanning, RoomPlan-based room and space capture, GIS and GNSS field data collection, BLE and IoT device integration, and AI/ML features that actually ship. Not demos, production systems. I'm the founder of Quality Wolves, a senior-only engineering team. Everyone on the team has owned full project cycles and made architectural decisions. We take ownership of the technical scope, surface what matters, and keep things moving. You stay focused on your product, we handle the build. What I build: Native Mobile: Swift, SwiftUI, Kotlin, full-cycle iOS & Android development, App Store and Google Play delivery AR / Spatial Computing: ARKit, ARCore, RealityKit, RoomPlan, LiDAR scanning, point cloud processing, 3D reconstruction, Apple Vision Pro. GIS & Field Data: GNSS/RTK integration, offline-first architecture, geospatial data pipelines, custom map layers, QGIS compatibility AI & ML: LLM integration, computer vision, NLP, on-device inference with Core ML and TensorFlow Lite, OpenAI and custom model pipelines, TTS/STT Connectivity: BLE pairing flows, LoRa, IoT sensor integration, background sync, beacon tracking Our senior engineers use AI tools deliberately, not as a substitute for judgment, which means faster delivery without trading speed for technical debt. Good fit if you: Need someone who operates independently without hand-holding Are building something with real operational complexity Have been burned by teams that shipped demos and called it done Describe the problem you're trying to solve, send a message, and let's talk specifics.

Flutter & React Native developer with 42+ completed projects and 1,271+ hours on Upwork — helping startups go from concept to App Store without the typical delays, miscommunication, or technical debt. My Focus: cross-platform mobile apps (iOS & Android) built with Flutter or React Native, backed by clean Node.js/Firebase architecture. Whether you're validating an MVP in 4 weeks or scaling a SaaS product to 10,000+ users, I deliver production-ready code that ships. What I specialize in: → Startup MVPs built fast without cutting corners (SaaS, on-demand, consumer apps) → Flutter apps with Firebase, Supabase, PostgreSQL backends → React Native apps with full API integrations (Stripe, OpenAI, Google Maps, Twilio) → Lovable.dev + AI-powered product prototyping and rapid UI generation → App Store + Google Play deployment, end-to-end → Rescue projects — I've rebuilt and fixed broken apps from other developers AI & Modern Tools I work with: → OpenAI GPT / Assistants API → Gemini AI / Claude AI integrations → Lovable.dev for AI product prototyping → Cursor AI & AI-assisted development workflows → Firebase AI features & Supabase AI stack → Whisper AI, text-to-speech, voice assistants → AI chatbots, recommendation systems & automation flows Recent results: → Delivered BookBound mobile app (iOS/Android + back office) — 260 hours, 5-star review → Built Eurologica cross-platform solution over 6+ months — 5-star, "amazing mobile app developer" → Delivered iOS Low-Code App Transformation ($1,630 fixed price, 5-star) Message me your biggest technical concern about this project. I'll respond within 4 hours with a straight answer.