Trusted by startups and enterprises, including a #1 Finance App Store product, a $6.8M-funded fintech wallet, and a SaaS platform with 5M+ monthly visits. 7+ years of extensive experience. 100% Job Success. Senior Full Stack Developer and Tech Lead. Experienced in delivering scalable, full-stack web and mobile products across React, React Native, Node.js, and cloud infrastructure: AWS, K8s, Azure. 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐈'𝐦 𝐩𝐫𝐨𝐮𝐝 𝐨𝐟: 𝐑𝐞𝐚𝐥 𝐞𝐬𝐭𝐚𝐭𝐞 𝐦𝐚𝐫𝐤𝐞𝐭𝐢𝐧𝐠 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 - helps agents and brokers generate more listings through personalized, trackable direct mail campaigns. Built full-stack on Next.js, Node.js, PostgreSQL, and AWS. 𝐅𝐢𝐧𝐓𝐞𝐜𝐡 - Cryptocurrency trading platform for the Icelandic market serving 20,000+ users, ranked #1 in Finance on the App Store. Built Profit & Loss tracking from scratch using transaction history and historical exchange rates, integrated multi-currency trading, and delivered both web and mobile experiences. Stack: React, React Native, Node.js, MongoDB. 𝐀𝐈 + 𝐀𝐮𝐭𝐨𝐦𝐨𝐭𝐢𝐯𝐞 - AI-powered car shopping platform that helps users find the best offers. Engineered SEO-friendly static HTML generation using AWS Lambda and S3, achieving strong SEO performance without SSR, and integrated a third-party dealer-matching API for verified sellers. 𝐒𝐚𝐚𝐒 - Project management SaaS with a Gantt chart, task dependencies, real-time collaboration via WebSockets, multilingual/timezone support, and Stripe/PayPal subscription billing. Stack: Next.js, Nest.js, MongoDB. 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 - Online furniture store with AI product assistant, AI-powered recommendations, custom CMS and CRM, Stripe-style checkout flow, and SEO optimization. Serving 100,000+ monthly users. Features include product variation, complex discount logic, category/subcategory navigation, wishlist, and efficient catalog filtering. Stack: React, Node.js. 𝐓𝐞𝐜𝐡 𝐬𝐭𝐚𝐜𝐤: ⚡ Frontend: React, Next.js, TypeScript, Redux, TanStack, Tailwind CSS ⚡ Backend: Node.js, Express, NestJS, Fastify, GraphQL ⚡ Databases: PostgreSQL, MongoDB, DynamoDB, Supabase ⚡ AWS: Lambda, S3, EC2, CloudFront, API Gateway, RDS ⚡ DevOps: Docker, Kubernetes, GitHub Actions, CircleCI, CI/CD ⚡ Mobile: React Native, Expo 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐫𝐢𝐧𝐠: Full-stack ownership: I handle architecture, backend APIs, databases, frontend, and AWS deployment. AWS infrastructure: Serverless architectures with Lambda and S3, scalable deployments, CI/CD pipelines, cost-optimized setups. SaaS platforms: Multi-tenant architecture, subscription billing (Stripe/PayPal), admin dashboards, real-time collaboration via WebSockets. FinTech & compliance: Secure transaction flows, KYC/AML-ready architecture, regulatory compliance from day one. AI integrations: LLM-powered features, intelligent chatbots, and workflow automation. 𝐖𝐡𝐚𝐭 𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐦𝐞 𝐥𝐨𝐨𝐤𝐬 𝐥𝐢𝐤𝐞: ✓ Strategic input at the architecture stage ✓ Clear, proactive communication and honest timelines ✓ Code your team can actually maintain and scale ✓ Security and compliance thought through from the start ✓ 30% faster delivery using AI-powered development tools ✓ Available across US/EU time zones, fluent English Great software starts with the right technical partner. Message me, and we'll set up a quick call to discuss your project.

Hello! 👋 I am a full-stack developer with more than five years of experience in web and mobile development, now also focused on AI-powered software development, Claude Code workflows, RAG systems, and practical AI automation for real business tasks. My core background is still strong engineering with .NET, Blazor, .NET MAUI, C#, Web API, Azure, DevOps, SQL databases, MongoDB, DigitalOcean, NGINX, IIS, and modern web technologies. On top of that, I help clients integrate AI into existing products, build internal AI tools, design AI workflows, and use tools like Claude Code to speed up development, improve code quality, and automate complex technical tasks. 🔧 Key Skills: - AI Development & AI Workflow Design - Claude Code setup, usage, and project workflows - RAG systems / Retrieval-Augmented Generation - LLM integration into web and business applications - AI assistants, internal copilots, and knowledge-base chatbots - Vector search, embeddings, document processing, and semantic search - Prompt engineering and AI workflow automation - .NET Core and .NET Framework - Blazor - .NET MAUI - Web API - SignalR - Mapbox - Android SDK - OpenGL - Azure Cloud - Azure DevOps CI/CD Pipelines - DigitalOcean - NGINX, IIS - SQL & Database Management: MS SQL Server, PostgreSQL, SQLite, MongoDB, Azure Storage - Entity Framework, Dapper - Web Technologies: HTML, CSS, JavaScript, TypeScript 🚀 Professional Experience: - Successfully designed and implemented numerous web, mobile, and backend applications, leveraging the power of the .NET ecosystem to deliver efficient and reliable solutions. - Built and designed AI-powered workflows, including RAG-based systems, document search, knowledge-base assistants, and automation tools for real business processes. - Experienced in working with Claude Code and AI coding workflows to analyze existing codebases, plan features, improve productivity, and support faster software delivery. - Skilled in integrating LLMs into applications, connecting AI models with databases, APIs, documents, and internal business data. - Managed and mentored development teams, fostering a collaborative and innovative work environment. - Skilled in overseeing all phases of the software development lifecycle, from initial requirements gathering to deployment and maintenance. - Proficient in various .NET technologies, with a strong understanding of front-end, back-end, cloud, and mobile development. - Skilled at identifying and resolving complex technical issues, optimizing performance, and ensuring application stability. 🤝 Let's Connect! Let’s connect and explore how I can help you build reliable software, improve your existing product, or bring AI-powered features into your business workflow. 🌟

❗️Bairro raised $6M after we helped take the product from 0 to 1 with Mobile App Development and Web Development. With 200k+ downloads, this is a strong case of how the right digital product strategy converts into measurable business traction. 📌 57+ Successfully Delivered Projects across 35+ industries centered around Mobile App Development 💪 6+ years building systems designed for scalable Mobile App Development ✅ 100% Job Success | Rated 5.0 by 20+ Clients ⭐️ 👋 Hey there! White Digital is a company fully dedicated to Mobile App Development and Web Development. App Development defines our structure and long-term strategy. As a trusted App Developer partner, we turn ideas into scalable products. 🙌 Our expertise spans Flutter mobile app development acros multiple industries. Every Mobile App Developer follows quality benchmarks, and our Mobile App Developer leadership ensures clarity. We have delivered Mobile App Development flutterflow solutions for Fitness App platforms, Wellness App products, Health App systems, Restaurant App solutions, and Marketplace Platform ecosystems. 🍎We also do ios mobile app development. Our iOS App standards follow guidelines for a wow UX. Every iOS App project starts with deep discovery, and iOS App architecture aligns with scalability. iOS App performance optimization and iOS App testing guarantee stability. Our ios app development methodology covers the full lifecycle, and ios app developer expertise ensures pixel-perfect execution. Thoughtful ios app design drives conversion, while ios app icon creation follows platform best practices. iOS App delivery remains a top priority backed by a product-oriented iOS App strategy. Each iOS App is a unique challenge, and iOS App refinement continues post-launch. iOS App review catches edge cases, iOS App analytics supports iteration. Advanced iOS App architecture handles complex features, iOS App security follows best practices. iOS App milestones are tracked against KPIs, iOS App scalability is built into every sprint. iOS App CI/CD pipelines accelerate releases, iOS App accessibility ensures inclusive design. Every iOS App update goes through rigorous QA, iOS App feedback informs our iOS App roadmap. iOS App remains central to our iOS & Android delivery, ensuring iOS App consistency across touchpoints. iOS App excellence drives everything we ship. Reliable iOS App infrastructure and iOS App monitoring complete the picture. 🤖 Android Developer expertise is equally critical. Every Android Developer brings deep platform knowledge, and Android Developer decisions shape product quality. Android Developer standards align with Google best practices, Android Developer code reviews ensure maintainability. Android Developer testing automation speeds releases, Android Developer profiling guarantees smooth UX. An experienced Android Developer handles integrations while a senior Android Developer mentors the team. Android Developer architecture follows clean patterns, Android Developer CI/CD streamlines deployments. Each Android Developer sprint delivers progress, Android Developer documentation supports handoff. Our android developer kotlin expertise enables native solutions. Android Developer scalability ensures future-proof products, Android Developer security protects user data. We bring android game developer experience to engagement-driven platforms. Android Developer analytics track behavior, Android Full stack Developer accessibility is non-negotiable. Android Developer milestones validate against business goals, Android Developer collaboration ensure UI consistency. Android Developer QA catches regressions, Android Developer releases follow strict protocols. Every Android Developer is a product thinker, and Android Developer vision shapes outcomes. Android Developer feedback accelerates iteration, Android Developer mentorship builds strength. Our app developer ios android approach ensures quality. Android Developer ownership extends beyond code. Android Developer standards define our native delivery. A strong Android Developer culture drives Android Developer results. 🎯 AI mobile app development plays a central role in our roadmap. We delivered AI App products that improved hiring confidence by 35% and cut trip planning time by 80%. Scalable AI mobile app development strengthens intelligence. 🔗 React Native is a key direction. Our React Native Developer team ensures consistency, and strategic react native implementation reduces time-to-market. 📱 Every mobile developer works product-first. We built products integrating BLE Wearable technology, Booking System platforms, and Social Media features across 10,000+ user ecosystems. 🎨 A professional designer is involved at every stage, building intuitive interfaces. We also have flutter developers, ios developers, and web developers. Don;t do shopify development. I am the BM and Product Manager at White Digital ✅ 📩 If you're looking for a strategic partner - write me!

Python Full Stack Developer who steps in where products stall - fixing broken ownership, tightening architecture, and turning messy delivery into a system that actually ships 10+ years in web product development, I now lead UASOFTDEV as CTO & Co-Founder, building and scaling teams of senior Ukrainian engineers who can integrate fast and take real technical responsibility from day one. If your product is slowed down by handoff gaps, weak architecture, or fragmented ownership, I help turn it into a clear delivery process with strong technical control My strongest core role is a python developer for backend-heavy products, with additional experience in C# .NET when projects require enterprise-grade backend logic. When the scope expands, I work as a full stack developer with end-to-end ownership, or as a web developer focused on scalable execution. 📌 What I typically cover Web and Mobile Development backed by 10+ years of product work, supported by a python full stack developer approach when APIs and UI must evolve together Full-Stack Development aligned into 1 clear delivery flow, shaped through python full stack thinking for faster releases and fewer handoff gaps E-commerce Web Development across 3 core layers - business logic, integrations, and user flows - delivered with full stack python experience API development and Integration for internal platforms and 3rd-party systems, handled in a full stack developer python role when architecture must stay practical ⚙️ My current capability set covers React with JavaScript, Next.js, Nest.js and TypeScript, plus Vue.js and Angular. On the backend, I work with Node.js, laravel, python, Django, Flask, .NET, C++, Go, Ruby on Rails and Java. Mobile and cloud delivery includes iOS, Android, flutter, React Native, AWS, Azure, GCP, Docker, Kubernetes, and openstack. I also support CMS and platform work through wordpress, Drupal, Symfony, Magento and Shopify. 🛠️ Delivery across product layers Lean API products often benefit from a python full stack developer flask setup User-facing systems need a full stack web developer mindset when flow affects adoption Interface-heavy platforms grow faster with a full stack developer react profile Cross-layer execution works well in a full stack developer react python environment System reliability improves early with a backend python developer focus 🤖 I build AI features for real workflows, not for demo value alone. In that context, I work as a python ai developer on assistants, automation and internal tools. My python ai work is strongest where adoption matters, and clients also bring me in as an ai developer or ai software developer when implementation must connect product, backend, and rollout. 🧠 AI, frontend, and product execution ✔️Practical ai machine learning features tied to support, search, and operations ✔️Applied machine learning developer work when smart functionality must fit an existing product ✔️Business-facing machine learning integrations designed for measurable value ✔️Custom chatbot systems built with react python flows and fastapi services ✔️Scalable UI delivery as a react developer with clean html front end execution and thoughtful app design ☁️ I stay close to architecture because strong delivery depends on clear ownership. That is why I regularly handle back end development, step in as a backend developer when technical decisions affect release quality, and support python devops workflows across cloud and deployment planning. 🔧 Collaboration and adjacent exposure In a startup, delivery often means working beside a data scientist, then translating that work with a product manager into usable features. Release quality improves when a qa analyst joins early, especially in products shaped by compliance. Some founders also involve me as a startup consultant before code begins. ✔️Broader platform exposure includes sharepoint workflows, material ui dashboards, payment gateway implementation ✔️Cross-team delivery has also touched full stack java environments and adjacent java devops processes. ✔️Finance-related work has included trading python flows, algorithmic trading logic, binance integrations, and tools built for a trader. ✔️Adjacent product contexts have involved data entry operations, support for a journalist workflow, technical resume writing solutions, selected dall-e use cases, prototype work around crypto bot ideas, and tools requested by gaming developers. ✔️Growth-focused engagements may also involve a seo specialist, a practical it consultant, or teams building in marketing saas. 🌍 My domain expertise includes AI Startups, Data Analytics, Healthcare, Fintech, E-commerce agencies, IT Consulting/Softdev companies, Real Estate, Non-Profit, Blockchain and Gambling 🤝 If you need senior technical ownership Python Full Stack Developer, fast ramp-up and delivery that stays aligned with business goals, let’s talk."

🙌Hi everyone and welcome to my Upwork profile! I'm Victoriya, a Full-Stack developer with 5 years of experience in the planning, developing, maintaining, and optimizing both large and small-scale websites and web applications. Through many projects, I have mastered problem-solving skills and just fell in love with what I'm doing. I have a strong background in front-end, back-end development and API integration. I can work with existing projects and develop new ones from scratch. I'd be happy to assist you with your projects. 🔹My skills: 🌀React.js, Next.js, Redux; 🌀Typescript, JavaScript; 🌀Express.js, Node.js, Strapi; 🌀HTML5/CSS3; 🌀Semantic UI, Bootstrap, MUI, Tailwind; 🌀GraphQL; 🌀MongoDB, PostgreSQL, Firebase; 🌀Sequelize; 🌀leaflet, OpenStreetMap; 🌀charts.js; 🌀lodash, day.js, moment; 🌀API integrations; 🌀Stripe; 🌀Git; 🌀Firebase hosting, Vercel, Heroku. Communication is key for me. I love solving complex problems and am not afraid to ask questions when something is unclear. Feel free to nudge me - I'm open to new opportunities, so you can send me an invitation any time! You'll be rewarded once we work together😊

$400M+ in transactions processed across platforms we built. 100,000+ tickets sold on a product shipped from zero. 20+ countries reached by an EdTech app delivered end-to-end. I'm not listing what's possible — I'm listing what's already running in production. I'm a full stack developer and software architect based in Israel, and the CEO of a 40+ engineer development agency. When you work with me, you get a senior technical partner who understands the code and the product — and a full team behind delivery when scope requires it. 🔹 Full Stack & SaaS Development Scalable multi-tenant architectures, B2B dashboards, internal tools, and AI-integrated SaaS. Core stack: React, Next.js, Vue.js, TypeScript, JavaScript, Python, Node.js, Laravel — full stack web developer depth from database schema to UI. 🔹 Fintech & Banking This is where I'm different from most full stack developers on this platform. We've built card issuing systems, treasury management platforms, AML/KYC pipelines, cross-border payment rails, and crypto-to-fiat flows. Live integrations: BlackRock, DocuSign, Salesforce, Rail API, Kraken, SEPA Instant. Production experience, not theoretical. 🔹 Mobile App Development Native iOS (Swift) and Android (Kotlin) for security-critical applications. React Native for cross-platform. My mobile portfolio includes a hardware-encrypted messenger with a built-in crypto wallet, a DeFi app, and a React Native aviation booking system — real-world apps built for real stakes. 🔹 Web3 & Blockchain EVM smart contract UIs, DeFi protocols, hardware-encrypted crypto wallets, seed-to-sale blockchain tracking, multi-chain no-code contract execution, tokenization platforms. 🔹 AI Integration LLM integrations, OpenAI API, RAG pipelines, multi-agent workflow automation, Fathom AI analytics, ClickHouse data infrastructure. I build AI as a functional product layer, not a feature checkbox. When you hire me as your full stack developer, you're not getting a solo freelancer bottleneck. You're getting a senior technical lead with backend, frontend, mobile, and DevOps teams — all behind one point of contact, one contract. Tech: Python · Django · FastAPI · React · Next.js · Vue.js · TypeScript · JavaScript · Node.js · Swift · Kotlin · React Native · PostgreSQL · MySQL · Redis · ClickHouse · AWS · GCP · Docker · Kubernetes · Solidity · Web3.js Send me a direct message to get 30-minute session to map your architecture, align on tech stack, or define your MVP roadmap before development begins.

✅ Claude Certified Developer ✅ AI developer with 15+ years of experience ✅ Delivered products that generated $1.6M+ in income for clients Still scrolling through a long list of AI developers? Don’t waste your time - just message me 😉 💡 How I work Every project starts with the business goal and ends with a maintainable, production-ready system: • define the AI use case and success metrics • choose the right approach: LLM, RAG, machine learning, classifiers, automation, or hybrid systems • build a clean pipeline: ingestion → validation → storage → retrieval • implement guardrails: safety, formatting, validation, fallback logic • ship with monitoring, iteration, and cost control 🔧 Tech Stack • AI / LLMs: OpenAI API, Claude Code, Lovable, Cursor, LangGraph, LangChain, embeddings, vector search, RAG, AI agents • Machine Learning / Data Work: model pipelines, classification, enrichment, data processing, evaluation workflows • Backend: Node.js, NestJS, Express.js, .NET, Python • Frontend: React, Next.js, Angular • Data: PostgreSQL, MySQL, MongoDB • Automation: n8n, Playwright • Cloud & DevOps: AWS, Azure, Docker, GitHub Actions • Product Integrations: Stripe, Supabase, Firebase, Twilio, QuickBooks, Google Maps, Puppeteer, and more I build backend systems, data processing, automation, and AI workflows. As a web developer, I build the product layer around the AI so the whole system works smoothly for actual users. And with a data scientist perspective, I pay close attention to data quality, model behavior, and decision logic, because weak inputs create weak AI. Recent successful AI-powered projects: 1️⃣ Lead Data Management Tool Large-scale extraction and enrichment pipeline with automated cleaning and classification • Uploading 50× faster • 184M+ records processed • Performance improved by 38% 2️⃣ AI-Powered Investment Mobile App AI-driven insights and personalization for faster decision-making • 70% less time spent managing investments • 3× more successful outcomes 3️⃣ Real Estate AI Assistant NLP-powered recommendations for faster matching and better engagement • Shortlisting 69% faster • Engagement increased by 184% 🧲 Industries I’ve delivered AI for: SaaS, FinTech, Healthcare, Construction, Logistics, Telecommunications, Oil & Gas, Real Estate, MarTech, and other operations-heavy businesses. 👉 If you need an AI developer, AI consulting services, web developer, or someone with solid machine learning and data scientist thinking who can ship stable, production-safe AI features, let’s build it.

🤝 We believe in quality, professionalism, and good long-term business relationships. 🤝 🏆 Certified Shopify Developer | Shopify Plus Expert | Certified Prestashop Partner | Ecommerce Expert Hi. My name is Pavlo Opanasiuk. I am an eCommerce expert (13+ years) and lead the certified Shopify and PrestaShop experts team - Polyany s.r.o. Polyany facts and figures: 📌 We are an Ukrainian 🇺🇦 / Czech 🇨🇿 / American 🇺🇸 eCommerce web and mobile development company 📌 We are certified Shopify Partners and PrestaShop Experts 📌 Over 570 projects delivered to customers 📌 Our specialists have 13+ years of experience in eCommerce 📌 9 out of 10 clients recommend us 📌 4.9/5 Clutch Review Rating 📌 100% Job Success — Top Rated Plus agency on Upwork 🎯 Our clients reach their eCommerce potential based on transformations where online and digital are essential parts of a successful business. We create simple and complex B2C/B2B solutions, including powerful eCommerce sites, marketplaces, applications, etc, from A to Z. We provide long-term ongoing support of a product at our client's request. 📈 Some of our clients have seen their online revenue grow 3-6x in 2024 compared to past years. We are professional web (JavaScript, Node.js, React.js, Vue.js, Next.js, Remix, PHP, Laravel, Symfony, PostgreSQL, MySQL, etc.), and mobile (Flutter, Dart) developers, UI/UX designers, QA specialists, etc. 🧩 Our company specializes in custom product configurator development that enhances the online shopping experience. This solution is designed to integrate seamlessly into the eCommerce platform, allowing your customers to modify products directly on your website. From Printing to Jewelry, our configurators streamline the customization process, helping companies improve customer engagement, reduce order processing times, and increase overall sales. Also, my team and I, as Shopify Developer or PrestaShop Developer, provide a wide range of other services to our clients: ✓ Creating B2C or B2B online stores and marketplaces from scratch (for furniture, automotive, fashion, jewelry, babies, food, computer hardware, sport, animals' and pets' goods, etc.); ✓ Developing web products (applications, plugins, extensions) for e-commerce business; ✓ Developing web cross-platform products (applications, plugins, extensions) based on Shopify, Prestashop, Magento 1, Magento 2, WP/WooCommerce, etc. for product companies; ✓ Developing mobile cross-platform applications (iOS and Android); ✓ Making a complex eCommerce site audit; ✓ Making a store’s performance optimization; ✓ Performing search engine optimization (SEO); ✓ Building and realising a marketing strategy focusing on a separate market and target audience; ✓ Providing ongoing support for websites, web, and mobile applications We provide full-services support for our clients on their eCommerce sites when they need to convert design layouts in Figma to a custom store’s theme; upgrade a site's CMS version; resolve issues/errors in a store’s configuration and functionality; configure servers (Ubuntu-PHP-Apache-MySQL, etc); configure primary and additional store features (like payment gateways, price calculation, multistore, etc); manage/import/export customers, products, and order catalogs, etc. 🗣️ What do our clients say about my team and me as a Shopify Developer or PrestaShop Developer? "For several years, I've been working with Pavlo and his agency, Polyany. Their availability and cost-to-quality relation have been impressive. Very professional and reliable, have a fast response time, do excellent work and are very solution-oriented. I can absolutely recommend Pavlo and his Team!" - René Eisenhut, Switzerland 🇨🇭 ❗We are proud that our clients stay with us for the long term and recommend us to others. If you need a Shopify Developer, Shopify Plus Expert, or PrestaShop Developer (from 1.4 to 8.2.1 versions), don't hesitate to ask us for support. We would be happy to be useful to you. If you need to see examples of my teamwork, please visit our portfolio to take a look at the work we have recently completed. If you have any questions, please feel free to ask me. I will be glad to answer any questions you have. E-commerce web development is my professional life. I work 5-6 days a week 8-10 hours a day.

I help startups turn ideas into fast, scalable mobile apps — from MVP to production-ready products. I’m a Mobile App Developer experienced in building iOS and Android applications for startups, SaaS platforms, and growing businesses. My focus is on delivering apps that are not just functional, but stable, high-performing, and ready for real users. Whether you need to launch an MVP quickly or improve an existing app, I can help you build a reliable, polished mobile product that scales. Develop cross-platform mobile applications using Flutter for iOS and Android. Build MVPs for startups and SaaS products with a focus on scalability and performance. Integrate REST APIs, authentication systems, payments, and third-party services. Create responsive, user-friendly interfaces with clean and maintainable code. Optimize application performance, stability, and user experience across devices. Manage the full development lifecycle from planning and implementation to deployment and maintenance. Collaborate with founders and teams to turn ideas into production-ready mobile products. 📱 WHAT I CAN BUILD iOS & Android mobile applications Cross-platform apps (Flutter / React Native) MVPs for startups UI/UX-driven mobile apps API integrations & backend connectivity App optimization & performance improvements App Store & Google Play deployment ⚙️ TECH STACK Flutter / Dart React Native Swift (iOS) Kotlin / Java (Android) REST API / Firebase Push Notifications Payment integrations Analytics (Firebase, Mixpanel) 🚀 WHY CLIENTS HIRE ME ✔ Clean, scalable code ✔ Focus on performance & UX ✔ Fast communication ✔ Experience with real production apps ✔ Ability to deliver MVP → Scale 🔍 SKILLS Mobile App Development iOS Development Android Development Flutter React Native Firebase API Integration Mobile UI/UX App Performance Optimization Update 25.06.2026

Hello, I am a top rated expert on the global platform Upwork, a dedicated high-level freelancer who integrates modern AI with core WordPress development. I have over 15 years of experience building dynamic and functional e-commerce solutions. My experience is highlighted by the completion of over 200 projects and over 22,000 hours of work at Upwork. To make the most of the combination of AI, API development, and WooCommerce in modern WordPress, I am increasingly focusing on integrating generative models directly into the e-commerce workflow.. Core Skill Set: - AI Integration: Connecting WordPress sites to AI services like OpenAI or Claude via API to build chatbots or automated content generators. - Advanced PHP & API: Building custom REST API endpoints to connect WooCommerce with external CRMs or logistics platforms. - WooCommerce Customization: Modifying checkout flows, pricing rules, and payment gateways beyond standard settings. - Theme & Plugin Architecture: Designing scalable, high-performance systems from scratch rather than using "off-the-shelf" templates. My ability to troubleshoot and resolve complex technical challenges, coupled with my clear communication and project management skills, ensures the delivery of high-quality, user-friendly web solutions that improve user experiences and e-commerce performance. Let's get in touch and discuss your project in detail. Kindly message so as to get started. Kind regards, Alexander Y.