Hey, happy to meet you on my profile! 😊 My name is Irina, and I’m proud to be a part of PettersonApps - a fast-growing software development company with over 10 years of experience delivering web, mobile, OTT, and custom digital solutions for clients worldwide. Over the years, we’ve partnered with startups, scale-ups, and enterprise companies across different industries, helping them build, improve, and scale their products with reliable development teams and transparent communication. Today, our team includes 150+ specialists covering the full product development cycle - from discovery and UI/UX design to development, QA, release, and ongoing support. Our expertise includes: ✅ Mobile app development (iOS, Android, Flutter, React Native) ✅ Web development (React, Next.js, Node.js, PHP, etc.) ✅ OTT platforms (Roku, tvOS, Android TV, Apple TV) ✅ AI/ML-powered solutions ✅ Unity development (AR/VR experiences & games) ✅ UI/UX design ✅ QA & testing support ✅ Dedicated project management and delivery support Whether you need support at a specific development stage or a full cross-functional team to take care of your project end-to-end, we’d be glad to help. I always aim to build long-term, transparent partnerships and make the collaboration process smooth and comfortable for clients. Feel free to reach out. I’d love to discuss your requests/requirements and answer any questions 📩

Hi, I'm a full-stack developer and mobile app developer shipping React, React Native, and Node.js MVPs for SaaS, wellness, fitness, and social app startups. Top Rated Plus, 100% JSS, 1,800+ Upwork hours, $70K+ earned. Over the last 10 years, I've built and shipped production web and mobile products for funded startups, product teams, and CTOs across the US, EU, and UK. As a full-stack developer, I architect and code the whole pipeline: React and Next.js frontends, Node.js and NestJS backends, React Native mobile apps, and AI integration on top. As a mobile app developer, I deliver iOS and Android apps with React Native, fully integrated with custom Node.js or Java Spring Boot backends. What I Do Best - Full-stack SaaS platforms: React, Next.js, Vue.js, Node.js, NestJS, TypeScript, with production UX in Tailwind CSS and Material UI. - Mobile app development: React Native for iOS and Android, native feel, App Store and Google Play ready, with Stripe, PayPal, and In-App Purchases for monetization. - AI features for web and mobile: OpenAI API, LangChain, RAG pipelines, ElevenLabs voice AI, computer vision, smart chatbots. - MVP development: wireframes to launch in weeks, not months, for funded startups. - Project rescue: rewriting Lovable and no-code MVPs into production React and React Native codebases. - Enterprise modernization: Java Spring Boot backends, Angular.js to Angular migrations, admin dashboards. - REST and GraphQL APIs integrated with Stripe, PayPal, Twilio, Mixmax, Gmail, and Outlook. - Cloud and DevOps on AWS (Lambda, EC2, RDS, S3, Cognito, Amplify), Vercel, Docker, PostgreSQL, MongoDB, MySQL, Firebase, Supabase, with CI/CD. Tech I Use Daily - Frontend: React, Next.js, Vue.js, TypeScript, Tailwind CSS, Material UI, Redux - Backend: Node.js, NestJS, Express, Java, Spring Boot - Mobile: React Native, Flutter - AI/ML: OpenAI API, LangChain, RAG, ElevenLabs, computer vision - Cloud: AWS, Vercel, Docker, CI/CD - Databases: PostgreSQL, MongoDB, MySQL, Firebase, Supabase - APIs: REST, GraphQL, Stripe, PayPal, Twilio, Mixmax Real Project Examples - Gamified Fitness MVP. As lead full-stack developer, delivered a React Native fitness app in 1 month with 3x AI-boosted development speed. Real users in the App Store inside 30 days. - Wellness and Social App. As full-stack developer and mobile app developer, rebuilt a Lovable MVP into a production React Native plus Node.js codebase with real-time feeds and a matching engine. 80% increase in daily engagement. - HR-Tech SaaS with AI Predictions. Gamified HR platform with ML-driven performance predictions. 120% performance gain, 3x faster data processing. - AI Sports Analysis Platform. Computer vision platform for tennis technique review. 80% faster analysis vs. manual review. - EdTech Platform for Norway's Leading Language Provider. React-based learning platform with real-time progress tracking and content management. How I Work - Weekly written updates, so you always know status and next steps. - Direct technical recommendations on Node.js performance, Java backend architecture, and AWS cost from day one. - Backed by Dewais, a 40+ person team, so I can bring in extra engineers when scope grows. - Comfortable joining ongoing projects or building from zero. - Full ownership across React web, React Native mobile, and AWS infrastructure. Ideal Clients Funded startups and product teams building SaaS, wellness, fitness apps, social apps, EdTech, and HR-Tech products. I also support mid-size businesses modernizing legacy Angular frontends and Java Spring Boot backends. Most engagements start as an MVP and grow into multi-year work, 94% long-term client retention. As a full-stack developer and mobile app developer, I deliver React and React Native products, Node.js APIs, AI integrations, and AWS infrastructure for SaaS, wellness, fitness, and social app startups. Send your idea, prototype, or wireframes. I'll reply within a few hours with technical recommendations and a preliminary timeline. Free 30-minute audit call included.

🏆 Top Rated Plus mobile & AI app developer 🚀 15+ years building iOS, Android, Flutter, and React Native apps 🤖 Specialist in AI integrations, LLM agents, and automation 💼 CTO-level experience leading mobile and SaaS product builds Hi, I'm Aleksandr Vdovichenko, a senior mobile app developer and AI engineer who helps startups, scale-ups, and product teams ship reliable iOS and Android apps and AI-powered SaaS products. I work across native iOS development with Swift and SwiftUI, native Android development with Kotlin, and cross-platform mobile development with Flutter and React Native (Expo). On top of that, I integrate modern AI stacks: OpenAI, Claude, Anthropic API, Hugging Face, LLM agents, RAG, and Whisper, so your app does more than display data, it reasons, automates, and adapts. 📱 Mobile App Development I Deliver Native iOS apps with Swift and SwiftUI for iPhone, iPad, and Mac Native Android apps with Kotlin for phones and tablets Cross-platform Flutter and React Native apps for iOS and Android MVP development for startups, from idea to App Store and Google Play release App refactors, performance optimization, and stability reviews Push notifications, deep links, in-app purchases, subscriptions, payments Bluetooth, Apple Health, HealthKit, Google Fit, camera, AR, and offline-first features API integration, GraphQL and REST, Firebase, Supabase, and custom backends 🤖 AI & Automation Services LLM-powered apps with OpenAI, Claude, and Anthropic API Autonomous AI agents and multi-step reasoning workflows (not just chatbots) Claude Code development for production AI logic and backend orchestration AI integrations into existing iOS, Android, and SaaS products Whisper-based voice features, OCR, computer vision, and pose estimation AI automation pipelines with n8n, Make, and custom serverless workflows RAG, embeddings, vector databases, and intelligent search AI-driven features for fitness, health, fintech, and social apps ⚡ No-Code & Low-Code Speed For founders who need to validate fast, I combine native skills with modern no-code and low-code stacks: Bubble for full SaaS platforms FlutterFlow for cross-platform mobile MVPs Lovable, Replit, Bolt.new, v0 for rapid prototyping Webflow for marketing sites and scalable web apps Adalo, Glide, Airtable for lightweight no-code products Capacitor and Expo for hybrid app deployment Supabase, Firebase, and Vercel for backend and hosting 🎯 Industries I Work With SaaS platforms, fintech and trading apps, health and fitness apps, mental wellness, telemedicine, social and dating apps, e-commerce and marketplaces, food delivery, education, and AI-first products. ✅ How I Work Clear architecture and tech stack recommendations from day one Predictable delivery with regular demos and progress reports Clean, maintainable code your future team can pick up Focus on App Store and Google Play compliance, performance, and stability Long-term partnership, ongoing maintenance, and scaling support If you're planning a new mobile app, an AI-powered SaaS, an MVP, or scaling an existing product, let's discuss your goals and define the right approach. 💌 Send a message and let's build something that ships and scales.

Hi! I'm a full-stack developer who ended up specializing in a weirdly specific niche: taking things that almost work – a rough AI idea, a half-finished MVP, someone's vibe-coded weekend project – and turning them into something a real business can actually run on. I take on projects at any stage – from a blank page and an idea, to an existing codebase that needs new hands on it. I've been building software professionally for years, and the work that gets me genuinely excited right now is at the intersection of AI and practical business systems: agents that quietly take hours of manual work off someone's plate, dashboards that finally show a founder what's actually happening in their business, and MVPs that go from "idea on a whiteboard" to "thing customers are using" faster than most teams think is possible. ☑️A bit about how I got here I started out doing classic full-stack work – websites, web apps, the usual. Somewhere along the way I noticed a pattern: the most interesting projects weren't "build me a website," they were "we have this process that's eating 10 hours a week, can you make it disappear" or "we tried to build this ourselves with AI tools and it's held together with tape, can you fix it." That's where I've stayed ever since. ☑️What I actually do → AI agents & automation – I build agents that handle real work: customer support triage, report generation, data entry, internal admin. Not chatbot demos – things that replace hours of someone's week, every week. → Custom business systems – CRMs, internal dashboards, workflow tools built around how your team actually works, not around a template you have to bend your process to fit. → SaaS MVPs – if you have an idea and need to see it as a real, clickable product fast, this is probably my favorite type of project. Weeks, not months. → Rescuing stuck projects – this might be the thing I'm most known for at this point. Half-finished builds, AI-generated ("vibe-coded") apps that worked in a demo and fell apart with real users, code from a developer who disappeared mid-project. I go in, figure out what's actually salvageable, and get it to a stable, shippable state – almost always without needing a full rebuild. → Web & mobile development – still very much in my toolkit when that's what the project actually needs. ☑️How I work I don't start typing code the moment a job is posted. I ask questions first – sometimes annoyingly many of them – because building the wrong thing fast is worse than spending an extra hour making sure we're building the right thing. Once we're aligned, I move quickly, communicate proactively (you'll hear from me before you have to ask "any update?"), and I'm honest early if something in the original plan doesn't make sense anymore. If you're not sure exactly what you need – just a business problem and no spec – that's a completely normal place to start a conversation with me from. ☑️A few results from recent projects ·Rebuilt a client's internal CRM around their actual workflow → 35% increase in operational capacity ·Automated order syncing for a manufacturing client → 8–12 hours saved per week ·Took over a 500-page Figma design that needed real engineering behind it → delivered a working, production-ready MVP on schedule ·Picked up a stalled, partially AI-generated MVP that broke under real traffic → stabilized it into a product the client could confidently launch ☑️When it makes sense to reach out · You have a manual process eating your team's time and suspect AI could kill it · You need a CRM, dashboard, or internal tool that fits your actual workflow, not a generic template · You started building something yourself (with AI tools or otherwise) and it's not quite production-ready · You have an idea and want to see a real MVP fast, not a six-month roadmap · You just want a second opinion before committing budget to a build – happy to do a quick, honest audit first Send me a message with what you're working on. Even if it's half-formed, that's a fine place to start.

I'm a Full Stack Developer with over 15 years of hands-on experience delivering robust and scalable web applications. My core expertise lies in .NET (ASP.NET Core, Web API, Entity Framework) and modern JavaScript frameworks like React, Angular, and Node.js. I’ve worked across industries including healthcare, fintech, retail, etc, building everything from HIPAA-compliant telehealth solutions to high-performance audit and data systems. Main expertise: ✔ C#.NET ✔ Angular/React/Vue/Node ✔ HTML, CSS, JavaScript ✔ MS SQL/PostgreSQL/MySQL ✔ Azure/AWS/IIS ✔ WCF Services ✔ SOAP, REST ✔ ASP.NET, ASP.NET MVC, ASP.NET Core, WebAPI ✔ WPF, ClickOnce ✔ WinServices ✔ ElasticSearch ✔ Solr ✔ Lucene Areas of interest: ✔ Web Development ✔ Desktop Development for Windows ✔ Mobile Development for iOS / Android / Cross-platform ✔ VR & AR Development using Unreal Engine / Unity 3D ✔ Machine Learning Let’s build something solid.

✅ 100% Client Recommendation ✅ Top Embedded and Firmware developer ✅ Top Hardware designer ✅ Top Software design ✅ Top Mechanical design and industrial design ✅ Top Enclosure design Services: 1) Hardware/Electronics design (Power, Analog, Digital/High-speed and RF electronics design) 2) Precertification testing (EMI, ESD, EMC, FCC, CE, UL) 3) Firmware design С/C++ (Bare metal MCU/MPU, FreeRTOS, Zephyr RTOS, Embedded Linux, Wireless protocols, Security, Interfaces, etc) 4) Industrial and Mechanical design (Enclosure design, 3D printing, IP standards, Prepare all for injection molding, etc) 5) UX/UI design (Embedded devices with displays, Mobile and Desktop applications) 6) Software design (Android, IOS, Linux kernel and user space development) 7) Embedded Quality Assurance(QA) and testing 8) Manual verification/testing PCB/FPC, functional and unit testing of the Firmware/Software, stress testing, temperature range testing Service->Hardware design service: - Power electronics design: (PFC, Solar charging controller, chargers, high voltage control, Motor controllers DC/AC/BLDC ) - Analog electronics design: High-accuracy analog measurements, Noise filtration, Digital to analog conversion, Amplifying signal - Digital and high-speed electronics design: - Memories DDRx/LPDDRx, SDRAM, Camera and display interfaces (MIPI-DSI, MIPI-CSI, DisplayPort, etc), Data communication interfaces (QSpi, SPI, UART, I2C, FMC, I2S, USB 2/3.x, etc), ( - RF Designs: ( 50-60 GHz (Radars), 1-6 GHz (UWB, Wifi, BLE, ZigBee, GPS, NB-IoT, LTE-M/LTE, Z-Wave, etc), 13,6 MHz, 128 kHz (NFC, RFID, etc), 433 MHz (Custom protocols) Service->Industrial and Mechanical design - Industrial design of the sketch - it includes a few sketch designs, depending on the physical sizes of the device, specific of industry and user experience - Mechnical CAD design with deep PCB integration - it includes full mechanical draw based on the industrial design with detailed sizes, materials and manufacturing specific. - Thermal calculation and simulation - it includes simulation of the heating device inside enclosure, with theoretical cooling calculation - 3D printing and verification - we use 3D printer hp jet fusion 5210, with a very nice quality of printing, that helps us to make a good verification of parts with PCBs - Injection molding - the last step, which includes manufacturing optimization and making pres forms, preparing documentation for the manufacturing Service->Firmware design С/C++: - Languages: C/C++, Assembler - Diagrams: Block, UML, Workflow, APIs - Interfaces: I2S, SAI, MIPI-DSI, MIPI-CSI, USB 2/3.x, LTDC, DDR3/DDR4/LPDDR4, I2C, SPI/QSPI, UART, CAN, Ethernet - Wireless: NB-IoT, LTE M, GPRS, GPS, LTE, UWB, WiFi, BLE, ZigBee, Z-Wave, LoRa, Thread, 6LoWPAN, Sub 1GHz, NFC (13,6 MHz), RFID 433 MHZ and 128 kHz - Protocols : MQTT, HTTP, FTP, Modbus TCP/RTU, SNMP, TCP/IP, UDP/IP, DLMS, custom protocols - Security: AES, SSL/TLS, custom algorithms - Libs and frameworks: TouchGFX (GUI lib for MCU), emWin (GUI lib for MCU), LVGL (GUI lib for MCU), WolfSSL (SSL/TLS), Mbed TLS(SSL/TLS), osxMotionFX (Sensors fusion algorithm based on the Kalman theory), FatFS, lwIP (TCP/IP stack), WICED (Wifi stack), aws/amazon-freertos, Paho MQTT, TensorFlow - Embedded OS: FreeRTOS, TI-RTOS, ZephyrOs, Embedded Linux, Yocto, ROS - MCUs: NXP (i.MX RT1064, LPC1100, LPC4000), Nordic (NRF52xx/NRF53xx/NRF91xx), TI (CC3220/CC26xx/CC1100/CC3200, MSP430), Espressif (esp32, esp8266), ST(STM32H7/F7/F4/L4/F0/L0/WB/WL/G0 and STM8), Atmel/Microchip(SAM D20/D21/L21/R21/V70/V71, SAMA5/SAM4/SAMD4), Silicon Labs(EFR32, ZGM130S), Cypress (PSoC 3/PSoC 4), Kinetis (Family MK81FN256VDC15), Holtek (HT68xx) - MPUs: Analog Devices (ADSP-2156x SHARC), Qualcomm (Snapdragon 625/425/610/845), Allwinner (A64, A33, H3, H6 series), NXP (I.MX6/I.MX7/I.M8) , ST(STM32MP1) - SOMs: NVIDIA Jetson nano, NVIDIA Jetson Orin Nano, NVIDIA Jetson AGX Orin, Toradex (Colibri iMX6, IMX7, IMX8), Raspberry pi (CM3, CM4 modules), Inforce (Qualcomm Snapdragon 410, 820, 845 SOM), 8devices (Mango on Qualcomm IPQ6000/IPQ6010 Soc), Sensiedge(SensiBle 1 and 2, SensiLora) Service->Software: - Languages: Java, Kotlin, C#, C/C++, Python, Java Script - Diagrams: Block, UML, Workflow, APIs - Interfaces: USB, Ethernet - Protocols : MQTT, HTTP, FTP, Modbus TCP/RTU, SNMP, TCP/IP, UDP/IP, DLMS, custom protocols - Wireless: BLE, WiFi, UWB - Security: AES, SSL/TLS - Libs and frameworks: GStreamer, Paho MQTT, WolfSSL (SSL/TLS), Mbed TLS(SSL/TLS), QT framework, Xamarin Forms and Maui, ASP .NET Core and web development, React (web UI development), SQLite DB, FireBase DB, Mong DB, InfuxDB DB, Room, TensorFlow, Node.js - OS: Android, IOS, Linux, Windows

When you hire me, you’re working with a Senior full stack developer who delivers production-ready full stack applications built with React, Next.js, and Node.js. My clients consistently receive SEO-optimized, scalable, and maintainable full stack web applications, including: - SaaS platforms built with React, Next.js, and Node.js - User dashboards and admin panels using React developer best practices - Custom CRM and CMS platforms with backend Node.js - E-commerce marketplaces powered by React Node architecture - AI agents and AI modules integrated into MERN stack systems - 3D configurators using React, Three.js, and React Node - High-impact animated marketing websites built with React NextJS - Web3 applications with React, Node.js, and blockchain integration Every project is engineered as a full stack development solution, frontend React, backend Node.js, and scalable database architecture. 👨‍💻 ABOUT ME — SENIOR FULL STACK MERN DEVELOPER I’m a Senior Full Stack Developer with 7+ years of professional experience specializing in the MERN Stack, React, Next.js, Node.js, and modern backend systems. As a MERN stack developer, I build architecturally complex, server-side rendered full stack web applications that prioritize speed, SEO, scalability, and clean UI/UX. My daily work revolves around: - React development for dynamic, interactive interfaces - React NextJS and Next.js for SEO-driven frontend performance - Backend Node.js APIs for scalable application logic - End-to-end full stack development using the MERN stack I don’t just code, I deeply understand business goals, user experience, and long-term scalability. As a React developer and Node.js backend engineer, I translate ideas into reliable full stack web solutions. ✅ WHY CLIENTS TRUST ME AS THEIR MERN STACK DEVELOPER - ✅ 7+ years of full stack development experience - ✅ 50+ complex MERN stack projects delivered from scratch - ✅ Strong background in React, Next.js, and Node.js - ✅ Master’s Degree in Computer Science - ✅ A long-term full stack partner, not a one-off freelancer As a React developer, I care deeply about UI/UX. As a Node.js developer, I build secure, scalable backends. As a MERN stack developer, I connect everything into one seamless system. 🚀 WORKING WITH ME, YOU WILL 1. Eliminate technical stress with a reliable full stack developer 2. Get clear, transparent communication throughout your React Node project 3. Receive accurate estimates and zero surprise costs 4. Enjoy on-time delivery across full stack web development 5. Benefit from lightning-fast load times using React NextJS 6. Use proven MERN stack strategies trusted by top SaaS founders Your product will be built using React, Node.js, and modern full stack development standards — not shortcuts. 🛠️ TECHNICAL EXPERTISE (REACT • NODE • MERN • FULL STACK) I specialize in Full Stack NextJS and backend NodeJS development with a strong focus on performance, scalability, and UI/UX. Frontend (React Developer Focus): - React developer workflows - UI/UX React interfaces - Next.js - Full Stack NextJS - React TypeScript - Tailwind CSS, ShadCN, Radix, GSAP - React Native Backend (Node.js & MERN Stack): - Backend NodeJS - React Node architecture - Express.js, Nest.js - MongoDB, PostgreSQL - Next.js Supabase - Prisma ORM, Drizzle ORM - WebSockets, APIs, authentication Advanced MERN Stack: - MERN stack development - Mern stack developer workflows - React Node integrations - AI modules (OpenAI, ClaudeAI) - Headless CMS systems - Three.js, React Three Fiber Every solution I build is a full stack web application powered by React, Node.js, and the MERN stack. 💬 LET’S CONNECT If you’re looking for a Senior MERN stack developer, React developer, or full stack developer who truly understands React Node architecture and backend NodeJS, I’m ready to help. Send a message with your idea or challenge, I’ll respond quickly with a clear technical plan and roadmap. 📞 Available for calls to discuss your full stack development, React NextJS, or Node.js backend needs.

🏆 TOP RATED PLUS | 100% Job Success | 9+ Years Building Web Products 👋 Welcome! If you found my profile, you're looking for someone who can turn an idea into a polished, scalable, revenue-generating product and ship it without drama. You're in the right place. I'm a Top Rated Plus full-stack engineer in the top 1% of Upwork talent, with 9+ years of professional web development, 6 years on Upwork, and a 100% Job Success Score. I specialize in React, NextJS, NodeJS, NestJS and TypeScript, plus everything needed to build fast, modern, reliable applications. 📊 BY THE NUMBERS • 🏆 Top Rated Plus, top 1% of Upwork freelancers • ✅ 100% Job Success Score • ⭐ 6 years on Upwork • 💻 9+ years of successful web development • 🚀 7+ years of full-stack delivery • 🔁 Long-term clients & high repeat-hire rate • 🗣 Fluent English, clear and proactive communication 🔥 WHAT I BRING • Senior-level architecture and system design • Clean, documented, modular, scalable code • On-time delivery, even under tight deadlines • Full ownership: concept → architecture → development → release • Proactive collaboration with founders, PMs and designers 🛠 CORE EXPERTISE (years of hands-on experience) ▸ FRONTEND JavaScript 9+ yrs · React 9+ yrs · HTML5/CSS3 9+ yrs · TypeScript 7+ yrs · NextJS 6+ yrs · Redux 7+ yrs · Zustand 3+ yrs · SCSS/SASS/LESS 8+ yrs · Tailwind 4+ yrs · Material UI 6+ yrs · Ant Design 4+ yrs · styled-components 5+ yrs · Storybook 4+ yrs · TanStack Query 4+ yrs · Vite/Webpack 6+ yrs · ChartJS, Recharts, ApexCharts, Highcharts, D3 5+ yrs ▸ BACKEND NodeJS 8+ yrs · Express 8+ yrs · NestJS 5+ yrs · REST API 8+ yrs · GraphQL 5+ yrs · WebSockets/Socket IO 5+ yrs · Microservices 5+ yrs · Prisma/Drizzle/TypeORM 5+ yrs ▸ DATABASES PostgreSQL 7+ yrs · MongoDB 7+ yrs · MySQL 6 yrs · Redis 4+ yrs · Firebase 5+ yrs · Supabase 3+ yrs · Neo4j 2+ yrs · Pinecone 2+ yrs ▸ CLOUD & DEVOPS AWS (EC2, Lambda, S3, RDS, Cognito, CloudWatch, API Gateway, Amplify) 6+ yrs · Docker 6+ yrs · CI/CD (GitHub Actions, GitLab) 5+ yrs · Vercel/Netlify/Nginx 5+ yrs ▸ AI & AUTOMATION Claude Code (daily driver since its 2025 launch) · AI integration: OpenAI, Anthropic, LangChain, RAG 3+ yrs · Vector DBs & semantic search 2+ yrs · n8n 2+ yrs ▸ INTEGRATIONS & TOOLS Stripe 6+ yrs · Twilio · SendGrid · Algolia · Elasticsearch · RabbitMQ · Auth0/OAuth/JWT/Cognito · Jest, Mocha, Cypress, Playwright · Agile/Scrum, Jira, Git 👥 MY TEAM I work with the INCODE Group, a team of senior engineers and designers covering web, mobile (Flutter, React Native), UI/UX, backend and DevOps. From MVPs to complex multi-service platforms, we handle projects of any scope. 🌟 WHY CLIENTS HIRE ME ♟ Strategic problem solving: more than "just a developer." I refine requirements and suggest smarter solutions. 🤝 Full ownership: one accountable person driving the entire flow. 🦾 Quality & scalability: clean, modular code ready to scale with your user base. 💼 Proven results: I help clients ship faster, increase revenue and improve engagement. ❓ Tell me about your idea and I'll help shape it into something users love. 📩 Send me a message anytime. Specialization: full stack developer, full stack web developer, react developer, nextjs developer, nodejs developer, nestjs developer, typescript developer, javascript developer, frontend developer, backend developer, backend engineer, web developer, saas developer, ai saas developer, ai integration developer, openai developer, langchain developer, rag developer, chatbot developer, dashboard developer, crm developer, marketplace developer, e-commerce developer, fintech developer, real-time app developer, websocket developer, graphql developer, rest api developer, microservices, postgresql, mysql, mongodb, supabase, firebase, redis, prisma, aws developer, aws devops, aws lambda, serverless developer, docker developer, ci/cd, stripe integration, twilio, headless cms, strapi, sanity, tailwind developer, react native, mvp development, web design, top rated plus developer, ai-native, ai-first, claude code, chatGPT, OpenAI

Hey 👋 I’m Anastasiia, a Senior Software Engineer specializing in cross-platform React Native app development for operations platforms, SaaS products, and real estate / field-service teams, from MVP to production-ready apps on iOS and Android. I help teams turn product ideas into stable, scalable mobile systems that users actually rely on daily. 🚀 What I Build with React Native Cross-platform mobile apps (iOS + Android) with a mobile-first UX Offline-first workflows with reliable data sync Push notifications (real-time updates, alerts, user engagement) Payments & subscriptions (in-app purchases, Stripe, Apple/Google Pay) Maps, geolocation & route-based features BLE / device integrations when hardware is involved Secure API integrations (often with .NET / REST / GraphQL backends) Admin dashboards (web companion panels for operations teams) 🧠 How I Work Discovery → clarify product goals, users, and edge cases Architecture → define scalable mobile structure (state, data flow, API design) Milestone delivery → iterative builds with clear scope per stage Weekly demos → working builds you can test continuously Store release → full App Store / Google Play preparation and deployment 💡 Why this approach works You get a production-ready architecture early, not just UI screens The app is designed to scale from MVP → full platform without rewrites Mobile performance, reliability, and UX are treated as core requirements, not afterthoughts You always know what’s being built and why, at every step If you already have an app idea, a prototype, or even an existing codebase, share it with me. I’ll map out the fastest and cleanest path to get it into production.

🚀 I help tech startups and growing businesses build custom Full Stack solutions - from custom SaaS platforms and enterprise apps (CRM/ERP/HRM) to AI-powered tools and automation pipelines that deliver real business results. I’m Oleksandr, CEO at Dinamicka Development – a leading Full Stack development agency. From MVPs to enterprise platforms, we provide end-to-end Full Stack development services, combining deep engineering expertise with modern AI-driven coding approaches to build products faster, more cost-effectively, and in alignment with your business goals. With 10+ years in software development and system architecture, my team has delivered 200+ projects across SaaS, logistics, real estate, fintech, edtech, and e-commerce – now enhanced with AI-driven engineering. 📈 𝗞𝗘𝗬 𝗠𝗘𝗧𝗥𝗜𝗖𝗦 & 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘 ✅ 10+ years in full stack software development ✅ 200+ projects delivered worldwide ✅ Proven success with SaaS startups and enterprise apps (CRM/ERP/Analytics Dashboards) ✅ 100% satisfaction rate across industries ✅ 85% clients retain long-term partnerships 🤖 𝗔𝗜-𝗗𝗥𝗜𝗩𝗘𝗡 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 – 𝗪𝗛𝗔𝗧 𝗪𝗘 𝗕𝗨𝗜𝗟𝗗 🚩 AI Agents & Autonomous Workflows (LangChain, LangGraph, CrewAI, MCP) 🚩 Custom AI Chatbots for SaaS & enterprise platforms (OpenAI GPT, Claude/Anthropic) 🚩 RAG Systems — private knowledge bases with vector DBs (Pinecone, Milvus, Weaviate) 🚩 AI Automation Pipelines (n8n, Make) with API & Webhook orchestration 🚩 AI-powered document processing & structured data extraction 🚩 Third-party AI integrations into CRM, ERP, and internal tools 🚩 AI-accelerated Full Stack development — faster delivery, same quality 🛠 𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞 – 𝗪𝗛𝗔𝗧 𝗪𝗘 𝗕𝗨𝗜𝗟𝗗 🚩 Enterprise Web Apps, SaaS, CRM, Dashboards, ERP, HRM, DMS 🚩 Mobile & Web Apps, Admin Panels & Analytics Dashboards 🚩 E-commerce Solutions, Marketplaces, Websites & Landing Pages 🚩 Data Visualization, Analytics & Reporting 🚩 IoT solutions, Chrome Extensions, Figma Plugins With us, you don't just hire a developer – you get a solution – clear project management, fast UI/UX design, expert frontend & backend engineering (React, Node.js & Python), AI-driven testing, DevOps services, and marketing support. We follow Agile (Scrum & Kanban), so you'll always have full visibility and a product that grows with your business. ⚙️𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 𝗪𝗘 𝗦𝗘𝗥𝗩𝗘 ✅ Logistics & Supply Chain ✅ Automotive & Fleet Management ✅ Healthcare & Sports ✅ Real Estate & PropTech ✅ Fintech & Banking ✅ E-commerce & Retail ✅ Big Data & AI-Driven Platforms ✅ Food Delivery & Restaurant Tech ✅ Education & EdTech ✅ IoT & Smart Solutions ✅ SaaS & B2B Platforms 🖥 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗬 𝗦𝗧𝗔𝗖𝗞 ➕ AI & Agents: OpenAI (GPT-4o/GPT-5), Anthropic Claude, LangChain, LangGraph, CrewAI, MCP ➕ RAG & Data: RAG Pipelines, Pinecone, Milvus, Weaviate, Structured Data Extraction ➕ Automation: n8n, Make, Zapier, Vapi, Retell AI, ElevenLabs, Voiceflow, Twilio ➕ Front-end: React, Next.js, Vue.js, Nuxt.js, Angular, TypeScript, WebGL, Three.js ➕ Back-end: Node.js, Nest.js, Python, FastAPI, Django, Flask, PHP, Laravel, .NET, GraphQL ➕ Databases & Cloud: PostgreSQL, MongoDB, MySQL, AWS, Azure, Google Cloud, Supabase ➕ Mobile: React Native, Flutter ➕ CRM & Ecosystems: HubSpot, Salesforce, GoHighLevel, Pipedream, Custom Webhooks ➕ E-commerce & CMS: WordPress, WooCommerce, Shopify, Strapi, BuilderIO ➕ DevOps & Security: CI/CD, Docker, GitHub Actions, QA, penetration testing 🤝 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗨𝗦 Whether you need a classic Full Stack team or a developer who uses AI tools to ship faster and smarter, we adapt to your workflow. ✔ AI-accelerated development: faster delivery, better quality, lower cost ✔ Clear communication, structured requirements, no "black box" ✔ On-time delivery with Agile sprints and full transparency ✔ End-to-end: from architecture and UI/UX to deployment and scaling 📩 𝙇𝙚𝙩'𝙨 𝘽𝙪𝙞𝙡𝙙 𝙎𝙤𝙢𝙚𝙩𝙝𝙞𝙣𝙜 𝙂𝙧𝙚𝙖𝙩 𝙏𝙤𝙜𝙚𝙩𝙝𝙚𝙧! Whether you're launching a SaaS product, integrating AI agents into your platform, automating operations with n8n, or scaling an enterprise app — message me and let's map out your technical roadmap.