I help SaaS companies, startups, and agencies launch fast, conversion-focused websites and web apps, then make them unmissable with motion and premium brand design. 190+ projects delivered, 100% Job Success, and $200K+ earned on Upwork. Most clients have to hire a developer and a designer separately. I do all to a professional standard, so your product ships cohesive, on-brand, and on-time; one reliable partner instead of multiple handoffs. Web Design & Development (my core) 1. Custom websites & marketing sites - Webflow, WordPress, Shopify, Wix 2. Web apps & SaaS dashboards - React, Next.js, Node.js, Typescript 3. Responsive UI/UX design in Figma 4. High-converting landing pages & design systems Also an expert in: 1. Motion Graphics - brand reveals, explainers, product & social animations 2. Brand Identity - logos, visual systems, marketing collateral, pitch decks 3. Game UI/UX - HUDs, menus, in-game screens & asset kits Why clients choose me: ✔ 190+ projects delivered · 8,000+ hours · 100% Job Success · Top Rated · $200K+ earned ✔ Design and development in one partner - no handoff gaps ✔ Strategy-led work, not just aesthetics ✔ Fast turnaround, clear communication, reliable long-term Industries: SaaS & Technology · AI & Automation · FinTech · E-commerce · Real Estate · Healthcare · Education · iGaming Tell me what you're building - website, web app, animation, brand, or game UI, and I'll tell you exactly how I'd approach it.

I help startups and growing businesses turn ideas into scalable, reliable software that delivers measurable business value. With 14+ years of experience, I've built SaaS platforms, AI-powered applications, enterprise systems, and MVPs for Fortune 500 companies and ambitious startups using React, JavaScript, TypeScript, Node.js, Python, Rust, C#, Kotlin, Java, Swift, Go, AWS, and other modern technologies. My approach goes beyond coding. I take time to understand your business goals, challenge assumptions when needed, and recommend the most effective technical solution before writing a single line of code. Whether you're building a new product, modernizing an existing platform, integrating AI, or scaling your infrastructure, my focus is the same: deliver maintainable software on time, within budget, and ready for growth. I work across such domains as: - Web development - AI integration & implementation - Desktop App Development - Mobile Development - DevO & Architecture - ERP/M Software - Data extraction / ETL Pipeline - Project Management Why work with me: - 170+rojects delivered for 100+ clients across the USA, Canada, the UK, Europe, Australia, Israel, and the Middle East. - Top rated Plus with 100% job success - $90k earned on Upwork - Helped multiple startups launch and grow their products - From architecture and UX to deployment, I can build complex software products from scratch - Comfortable communication Let's discuss your project and find the smartest solution for your business.

100% Job Success Score | Top Rated Plus Hi, This is Julia, CEO of Code Upscale. With a background in engineering from Georgia Tech and UCLA and extensive experience in managing teams at Amazon, I've founded three successful startups, one of which has already been acquired. About Code Upscale, I now leverage my 13+ years of experience by running Code Upscale, a software development firm specializing primarily in delivering top-notch solutions that drive business success. Here's a snapshot of the services we offer: Services Provided: Microsoft Applications: -Power Apps (Canvas Apps, Power Pages, Model Driven Apps) -SharePoint Customization and Integration -Microsoft Power Automate (Cloud & Desktop) -Microsoft Dynamics CRM / Dynamics 365 -Power BI (Data Visualization and Reporting) -.NET Applications -Azure (Data Lakes/Storage/IoT, OpenAI, Kubernetes, etc.) Comprehensive Software Solutions: -Minimum Viable Product (MVP) Development -iOS & Android: React Native, Swift, Java, Ruby, Kotlin -Web Development/CMS Development (WordPress) -Ecommerce (Shopify, WooCommerce) -AR/VR Projects (Unity) -Blockchain Projects (Solidity, Web3, Remix IDE) -Full Stack Development (Node.js, React.js, TypeScript, SQL, MongoDB, Laravel, PHP) -CRM Development / SaaS Platforms -Salesforce Integrations -Data Scraping (Python, Selenium) -API Development (REST, SOAP) -UX Design (Figma) Data Engineering: ️️ -Big Data: ETL Pipelines, PowerBI, MySQL, Python, Splunk -Data Visualization: Tableau, BigQuery, SQL -Data Storage: Snowflake, Azure, AWS Salesforce CRM: -AI Bots & Custom App Development: SOQL, Lightning, Apex, JavaScript, MySQL, VisualForce -Data Scraping & Data Cleansing: Python -Salesforce Sales Cloud API Integrations Artificial Intelligence (AI): -AI Technologies: OpenAI’s GPT-4, Computer Vision, Machine Learning (ML), Large Language Models (LLM), Deep Learning (PyTorch, TensorFlow, Keras) -AI Agents/Chatbots: ChatGPT, Copilot, Claude, Gemini, Perplexity.ai, Jasper, Grok -Neural Network Projects: Vertex.ai, Microsoft Cognitive Toolkit -Custom API Builds: GraphQL Project Management: -Agile methodology: Kanban & Scrum via Jira, Trello, Asana, Monday.com Some Facts About Me: -CEO of Code Upscale -12+ years of software development experience -Founder of three successful startups -M.S. and B.S. in Engineering (cum laude) from Georgia Tech and UCLA -Results and ROI-oriented (Business-minded programmer) -Outstanding ratings and reviews Our primary focus is on delivering value to our clients by understanding their needs and providing tailor-made solutions. We work with established companies (such as banks, logistics companies, and SaaS providers) and entrepreneurs and startups, building everything from Minimum Viable Products (MVPs) to full-on digital transformation enterprise projects. Why Choose Us? Proven Track Record: Successfully delivered 100+ projects for clients worldwide, ranging from small businesses to enterprise-level organizations. Creative Problem Solvers: Thrive on solving complex challenges and implementing innovative solutions that drive results. Attention to Detail: Pay meticulous attention to every detail of the development process, ensuring pixel-perfect designs and flawless functionality. Timely Delivery: Understand the importance of deadlines and strive to deliver projects on time and within budget. Excellent Communication: Belief in transparent and open communication, providing regular updates, and seeking client feedback throughout the project lifecycle. Let's Connect! Ready to take your project to the next level? Whether you need a custom website, a feature-rich mobile app, or ongoing support and maintenance, we're here to help. Let's discuss your project requirements and turn your vision into reality!

👋 Hi, I’m Matt - a senior C/C++ developer and reverse engineer with 15+ years of experience working across Windows internals, low-level systems, and complex software analysis. My core expertise is understanding how software works under the hood. I specialise in reverse engineering applications, analysing Windows internals, debugging complex behaviour, and modifying or extending software at both user-mode and kernel level. Over the years I’ve developed more than 500 desktop applications in C# and C++, built large-scale production systems used by millions of users, and led development teams delivering reliable, robust software for enterprise and financial organisations. I operate comfortably at every layer of the stack - from kernel-mode drivers and memory analysis through to desktop applications, systems development, and backend platforms. 🔒 Windows Systems, C/C++ & Reverse Engineering - Reverse engineering complex applications and software systems - Understanding internal logic and reconstructing application behaviour - Adding or modifying functionality in existing software - Windows kernel driver development (WDM / KMDF) - Static and dynamic analysis (IDA, Ghidra, x64dbg) - Encryption / decryption analysis and algorithm reconstruction - Anti-tampering and protection bypass analysis - Driver debugging, crash dump analysis, BSOD investigation - Syscalls, Windows exceptions, hooks and internal APIs - Virtual / physical memory inspection and manipulation - Assembly, pseudocode and binary analysis - Researching undocumented Windows behaviour - Performance optimisation at system level If it runs on Windows, I can reverse engineer its logic, understand how it processes data, extract or reconstruct functionality, debug system-level issues, and alter behaviour where required - from user-mode applications down to kernel drivers. 🎮 Game Reverse Engineering, Cheats & Anti-Cheat Research I have extensive experience reverse engineering games and building internal and external cheats, mods, and tooling. - Internal and external game cheat development - Reverse engineering game engines and client logic - Working with major anti-cheat systems and protections - Bypassing anti-tamper and protection mechanisms - Game modding and functionality extensions - Memory inspection, injection and runtime analysis This experience requires deep understanding of low-level systems, memory, and complex software protections. ⚙️ Systems Development, Emulation & Embedded Work Alongside Windows systems work, I also work with lower-level system development and emulation. - Systems-level C/C++ development - Emulator and virtualised environment development - Hardware and device communication - Embedded systems development - DSP and signal processing related software - Performance-critical low-level systems 🖥 High-Performance Desktop Applications - High-performance Windows applications in C# and C++ - Real-time data processing systems - Custom internal tooling and automation platforms - Enterprise-grade desktop software supporting large user bases Having built hundreds of desktop systems and applications - from simple console tools to enterprise-grade platforms supporting millions of users - I understand performance, optimisation, maintainability, and long-term stability. 🏗 Backend Systems & Platform Architecture - Scalable backend systems and APIs - Client/server architecture and communication pipelines - Authentication, licensing and secure system design - Database architecture and performance optimisation - Refactoring and stabilising legacy systems I design systems for long-term stability and scale - not fragile MVPs. 👥 Technical Leadership & End-to-End Ownership - Led and managed teams of 3–20 engineers - Architecture ownership from concept to release - Code reviews, mentoring and engineering standards - Direct stakeholder and founder collaboration - Delivery planning and execution I don’t just write code - I take ownership of the outcome. Having worked with major financial institutions and enterprise organisations, I understand what works at scale, how to communicate complex technical decisions clearly, and how to deliver reliable, production-ready systems that stand up to scrutiny. 💡 Commercial & Technical Experience Combined I bring both deep low-level technical expertise and real commercial product experience. I’ve built profitable software businesses, worked with enterprise organisations, and understand the balance between engineering excellence and practical delivery. 🤝 Let’s Connect If you need help reverse engineering an application, analysing complex Windows behaviour, developing C/C++ systems, debugging difficult problems, or extending existing software - I would love to hear from you. I’m always happy to chat through ideas, provide honest technical advice, or take ownership of a project and see it through properly. Hopefully speak soon. Matt

With over 20 years of extensive experience in software development, a strong foundation in a variety of programming languages, and a proven track record in delivering efficient and scalable software solutions, I am confident in my ability to contribute effectively to your team. I specialize in full stack development, data engineering, database design, cloud migration, API integrations, and enterprise application modernization. My main technical strengths include .NET, C#, React, Angular, SQL Server, PostgreSQL, AWS, Azure, ETL, SSIS, Power BI, Tableau, Docker, Kubernetes, and microservices. Throughout my career, I have worked with healthcare, fintech, government, aviation, and enterprise clients. I have built web applications from the ground up, optimized slow systems, designed data warehouses, created ETL pipelines, developed reporting dashboards, migrated legacy systems to modern cloud platforms, and led development teams through full project lifecycles. I can help with: • Full stack web application development • NET / C# backend development • React / Angular frontend development • SQL Server / PostgreSQL database design • ETL, SSIS, data warehouse, and reporting • AWS / Azure cloud deployment and migration • API integrations and microservices • Power BI, Tableau, and Grafana dashboards • Legacy system modernization and performance optimization I am comfortable working independently or as part of a team, and I can take a project from requirements gathering and architecture through development, testing, deployment, and ongoing support. My goal is always to build solutions that are secure, scalable, reliable, and easy to maintain.

Solo dev. 9+ years in mobile and web, and I've been writing code for the web since 2012. React Native has been my main stack for the last 6 years - TypeScript, JavaScript, the usual. I picked up Flutter in 2020 and now I split my time between the two. Flutter gives me fewer headaches, but I'm not religious about it: if you already have a codebase, I work in whatever it's written in. If you're starting from zero, I'll tell you which one actually fits your case instead of pushing my favourite. Before mobile I was a front-end developer. Android from 2015, and a year later I bought my first MacBook to write native iOS. Objective-C. I remember it. How I work: I take projects from idea to store release, and I stick around after. Most of my clients come back with the next thing. I write tests and set up CI/CD, so shipping isn't a manual ritual every time. I ask questions early instead of guessing and rebuilding later. If something in your spec is a bad idea, I'll say so before I build it. Mobile: React Native, TypeScript Flutter, Dart Swift, Kotlin - I can write native components when RN or Flutter doesn't have what you need FlutterFlow (since 2023) RevenueCat, branch io, Sentry GitHub Actions, Fastlane, CircleCI for CI/CD Tests: Jest, Mocha, Jasmine Web: Next.js, Node.js, React.js, Redux, GraphQL AWS, DigitalOcean, Heroku, Retool Supabase Firebase, the whole set: Firestore, Realtime Database, Cloud Functions, Auth, Cloud Messaging, Remote Config, Hosting, Cloud Storage, ML, Dynamic Links Web3: Blockchain development, DApps, DeFi, LayerZero Crypto wallet integrations (MetaMask, AlphaWallet), Tokenscript Token launches Casino game mechanics (spinner, coinflip, lottery, splash) ChatGPT / OpenAI and other AI integrations Infrastructure & keeping sites alive: This is the other half of what I do, and it's usually urgent when someone contacts me about it: DDoS protection. Getting a site back up when it's under attack, then making sure it stays up — Cloudflare, WAF rules, rate limiting, hardening the origin so it isn't reachable directly. Highload fixes on PHP projects. Most often WordPress + WooCommerce shops that die under real traffic. Slow queries, missing indexes, no caching layer, cron running wild, twenty plugins doing the same thing. I find what's actually eating the server instead of just throwing more RAM at it. Monitoring for small infrastructure. Uptime, alerts, dashboards — so you hear about a problem from me, not from your customers. This works as an ongoing monthly arrangement; message me and we'll size it to what you have. If you're not sure whether your project fits, just send me a message and I'll give you an honest answer.

AI Developer and Senior Full-stack Developer Top-rated Plus (Upwork Top 1%) AI Agents, AI SaaS, Generative AI & Full Stack Development I help companies as AI Developer design, validate, and ship AI products fast, with a strong focus on AI Agents, Generative AI, and proAI Developer (Upwork Top 1%) AI Agents, Generative AI & Full Stack Development 8+ Years in AI & Machine Learning — production systems, not prototypes 50+ AI Products Delivered — from MVP to enterprise scale Top 1% AI Developer on Upwork AI MVPs shipped in 4–8 weeks — structured delivery, no overengineering HIPAA / SOC2 / GDPR-ready AI systems Full-cycle delivery — architecture, development, deployment, and optimization Trusted by teams in Healthcare, FinTech, Logistics, Real Estate, and E-commerce As a Senior AI Developer and Full Stack Software Engineer, I build production-ready Generative AI applications, custom AI Agents, and scalable machine learning systems. With 8+ years in Machine Learning and software architecture, I work as an AI Developer, AI Engineer, and Full Stack Developer. Together with Indeema, a full-cycle AI and custom software company, I lead teams that turn AI strategy into deployed systems, from data pipelines and LLM orchestration to scalable backend architecture and enterprise integrations. Proven track record with a 100% Job Success Score Consistently earning 5★ client feedback 8+ years building production-ready AI systems Clean, scalable, and enterprise-grade architecture From idea to deployed MVP in 4–8 weeks My structured delivery approach takes products from idea to working MVP in 4–8 weeks. AI Agent Consulting & Delivery I consult and implement agentic AI systems that observe, reason, and act across business workflows: AI Agents & Autonomous Workflows LLM-powered Products and Copilots RAG Systems and Knowledge AI AI Orchestration Architectures AI Integration into existing platforms AI MVP validation and architecture design My approach combines strategy, architecture, and delivery helping companies avoid costly overengineering and ship production-ready AI faster. What I Deliver AI Agent for Document Management AI Agent for Real Estate AI Agent for Inventory Management AI Agent for Fintech and Financial Management AI Agent for Medical Clinics and Image Analysis AI System for Advanced Analytics Agentic AI System Design Generative AI Development Machine Learning and Predictive Analytics AI App Development and Automation NLP, Computer Vision, and Data Science Enterprise AI Integration and Modernization I work across Healthcare, FinTech, Logistics, Real Estate, and E-commerce, building systems that improve operations, reduce manual work, and unlock new revenue streams. AI MVPs in 4–8 weeks using a structured delivery methodology HIPAA / SOC2 / GDPR-ready solutions AI integration with ERP, CRM, and legacy systems Dedicated AI teams and fractional CTO leadership ⚙️ Technologies Python, TensorFlow, PyTorch, LangChain, LLM APIs (OpenAI, Claude, Gemini), AWS SageMaker, Vertex AI, Docker, Kubernetes, MLOps pipelines, vector databases, real-time AI systems. If you’re looking for a partner who can design the right AI solution and actually ship it, let’s talk.

I am a Node.js developer with over 15 years of Full-Stack development experience. I've built 220+ web projects. I have 10+ years in Node.js development. Besides, I specialize in SaaS, Dashboards, Healthcare, Marketplaces, MarTech, FinTech, Real Estate, mobile apps, and enterprise software. 🏆 112k+ billed Full-Stack Development 💎 $4m+ earned in Full Stack Development 🥇 Senior full stack developer in React.js Node.js AWS Next.js Nest.js JavaScript Developer 📢 Our client, Eventbrite company, boasting $580M in revenue, said about working with us: "𝗧𝗵𝗲 𝗖𝗹𝗼𝗰𝗸𝘄𝗶𝘀𝗲 𝘁𝗲𝗮𝗺 𝘄𝗮𝘀 𝗲𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝘁. 𝗪𝗲 𝗮𝗿𝗲 𝘁𝗵𝗿𝗶𝗹𝗹𝗲𝗱 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲 𝗳𝗶𝗻𝗮𝗹 𝗽𝗿𝗼𝗱𝘂𝗰𝘁". As a skilled Node.js Developer, I’m proficient in AWS, Serverless, and Microservices, leveraging NestJS and ReactJS to craft scalable systems, and I specialize in building reliable solutions as a Node.js Developer using Vue.js Node.js, NestJS, and React.js. With Nest.js, I build strong server-side apps that have a smart structure and fast API routing. As a Node.js developer, I rely on TypeScript and Nest.js’s detailed docs to write code that’s easy to read and maintain. I also plug in extra Nest.js modules to simplify linking up with databases and outside services, making development quicker and more organized. I'm a skilled Node.js backend JavaScript developer with a focus on Node.js, crafting scalable and efficient server-side solutions. I harness MongoDB alongside Node.js to deliver versatile NoSQL database systems and possess deep knowledge of SQL for overseeing relational databases, ensuring data remains consistent and reliable. ➤ 𝗖𝗹𝗼𝗰𝗸𝘄𝗶𝘀𝗲 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗧𝗲𝗮𝗺 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 💯 100% Top Rated Plus - 🎯 Top 3% of companies 📢 50% of our clients work with us for over 3 years 💎 84% of our clients strongly recommend our Node.js expertise 🥇 Awarded 'Best Upwork Agency in Dnipro' by Upwork 4 years running 🏆 Named 'Top Ukraine Development Company' by Clutch 3 years in a row 📱💻 310+ successfully completed projects over 10 years with a 4.9🏆 3rd-party rating 👉 𝗪𝗵𝘆 𝗬𝗼𝘂 𝗦𝗵𝗼𝘂𝗹𝗱 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 𝗔𝘀 𝗬𝗼𝘂𝗿 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 ☑️ Latest Technologies: As a Node.js Developer, I harness Node.js, NodeJS, React, Vue.js, MongoDB, and Angular to build modern, scalable web applications. My expertise in NodeJS ensures your business stays competitive. ☑️ End-to-End Product Development: With comprehensive skills in Node.js for back-end and front-end technologies, I deliver fully integrated solutions as a Node.js Developer. Using NodeJS, I ensure cohesive user experiences and robust performance for faster project delivery. ☑️ Expertise Across Multiple Industries: As a Node.js Developer, I’ve completed projects in MarTech, Real Estate, Logistics, Healthcare, Travel and Hospitality, and FinTech using Node.js. My adaptability with NodeJS tailors strategies to your market. 𝗡𝗼𝘁𝗮𝗯𝗹𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 ✔ Customized AI chatbot SaaS built with Node.js and OpenAI ✔ Multi-tenant fleet management software powered by NodeJS React Developer ✔ Logistic using Node.js ✔ Fintech solutions with a strong UX focus, developed as a Node.js JavaScript Developer 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗗𝗼 𝗙𝗼𝗿 𝗬𝗼𝘂 𝗔𝘀 𝗮 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 ✔ Develop web apps and websites from scratch using Node.js ✔ Handle client-side and server-side development with NodeJS Backend Developer ✔ AI Chatbot Development | AI Chatbot Developer ✔ Design application architecture tailored to your needs using Node.js ✔ Integrate third-party services (payment systems, Google services, social networks) with NodeJS Full Stack Developer ✔ Optimize high-load apps for speed, scalability, reliability, and security as a Node.js Developer ✔ Write comprehensive unit tests with Node.js for optimal user experiences As a passionate full stack developer Node.js Developer, I embrace new challenges and technologies. If your project requires unfamiliar tools, I’ll master them with Node.JS to deliver results. Have an idea needing skilled implementation? 𝗟𝗲𝘁’𝘀 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝗵𝗼𝘄 𝗺𝘆 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗰𝗮𝗻 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝘃𝗶𝘀𝗶𝗼𝗻 𝘁𝗼 𝗹𝗶𝗳𝗲! 👌

❤️CLIENT-oriented React Developer available for LONG-TERM projects | 🔥 116 jobs on Upwork and 0 negative feedback | 💸 Remote full stack developer with full integration in your team that makes a profit | 🚫 No small fixes ❗️ No small fixed price work | To hear me and more about my soft skills, take a look at my video introduction and the video testimonials from my previous clients (attached to the portfolio) ABOUT ME I have more than 8 years of experience building high‑traffic react nextjs applications. I help teams turn complex ideas into profitable React Node.web and React Narive mobile apps, shipping MVPs up to 3x faster using AI. With excellent communication skills and a flexible working attitude, I have successfully collaborated with clients from 23 countries, consistently implementing a “can-do” approach MY KEY ACHIEVEMENTS ✔ As a React Frontend Developer I developed a React SaaS product that simplified construction estimations, reaching 98% accuracy and reducing project estimation timelines from weeks to minutes. ✔ As a Senior React Developer I led Frontend React Nextjs Project of a global $100M+ enterprise, leveraging React Nextjs frontend Typescript , and Redux ✔ As a Frontend React Developer I worked together with Python Developer to build a high-performance marketplace, handling 500K+ monthly users. I also ensured seamless API integrations, real-time updates, and secure transactions ✔ As a React Developer I worked on Frontend react nextjs of the real-time analytics dashboard also using Redux and D3.js, allowing businesses to track KPIs in real-time and increase operational efficiency by 35% ✔ While working as a React native app developer , I also created a React Native mobile app for real-time event invitations, handling 100K+ active users with 99.8% uptime ✔ Working in the HealthTech industry as a Senior Frontend React Developer JS , I delivered a HIPAA-compliant patient portal on React that cut virtual-visit check-in times from 25 minutes to 8 minutes, serving 40 K weekly sessions ✔ As a React Nextjs Frontend Developer I created a booking system for a company in the hospitality industry, integrating Stripe, Twilio SMS, and calendar syncing, resulting in 95% fewer missed appointments ✔ While working on a LogisticsTech SaaS , I contributed to a Frontend React Development of live shipment tracking system using WebSockets (it works across 4 continents) ✔ In the EdTech sector as a React Nextjs Frontend Developer I developed an interactive React-based learning platform with gamified features, increasing course completion rates by 38% and supporting over 200K concurrent learners ✔ As a Full Stack Developer React Node for a Travel platform, I implemented a dynamic search and booking flow that decreased booking abandonment by 42% and processed $15M+ in monthly reservations ✔ In the Real Estate sector, I developed an interactive 3D model viewer in React, allowing users to explore spaces and products in real time, increasing engagement and conversion rates by 40% ✔ As a Frontend React Developer for a PropTech startup project, I built a property management dashboard that automated 85% of tenant requests, cutting operational costs by $500K annually ✔ In a Media & Entertainment project I worked as Full Stack Developer AI and built and deployed a real-time recommendation engine using deep learning, personalizing video content for 250K+ daily users ✔ For a RetailTech platform, as a full stack developer react node , I developed a customer rewards portal that drove a 60% increase in repeat purchases ✔ Working in InsurTech, python full stack developer and I engineered a policy comparison tool with real-time data feeds, reducing policy selection time from 40 minutes to under 5 minutes for 100K+ users monthly ✔ In the AgriTech industry I worked as Full Stack Developer react node and created a react nextjs frontend dashboard for IoT sensor data, enabling farmers to optimize irrigation schedules and reduce water consumption by 25% across more than 1,500 farms As a Senior React Developer firebase , I not only have extensive experience with various JavaScript frameworks ( I have over 8 years of experience in frontend react development and back-end development, and 5 years in mobile app development ) but also hold Bachelor's degree in Engineering Software. I have built and optimized scalable, high-performance web apps using React.js and have developed React Native mobile applications with lightning-fast performance Need to launch fast? As a Full Stack Developer AI , I can take your MVP from zero to live in 4 weeks, leveraging AI to streamline workflows, cut engineering overhead by 30%, and accelerate your path to seed funding as I have already done it before With me, your next release ships on schedule, scales to hundreds of thousands of users, and lets you focus on growth Let's begin the collaboration with TOP RATED PLUS Full stack Developer React by clicking "Invite" or "Hire" on the top right ↗️ 07.04.26

For 15+ years, I’ve built web and mobile apps that run reliably in production — not just demos. Clients come to me when systems need to stay stable under load and behave predictably. I focus on architecture and delivery that actually work in real conditions. I’ve delivered 100+ projects, including high-load systems with millions of users. My experience covers VPN & cybersecurity solutions, banking software, AI tools, real-time tracking systems, and scalable mobile/web platforms with complex functionality — along with other non-trivial systems. Tech: • Swift (UIKit / SwiftUI), Kotlin (Jetpack, Coroutines) • React (Next.js), Vue • Node.js (NestJS / Express), PHP (Laravel / Yii2) • WebSockets, TCP/UDP • REST / GraphQL APIs • Stripe / PayPal • Firebase, Amplitude, AppsFlyer, RevenueCat • OpenAI, Gemini, Claude, vector DBs • JWT, OAuth2, encryption, secure storage I handle architecture and key decisions myself. If needed, I involve additional developers — always transparently. Process is straightforward: define scope → plan → build → test → release → support. No overengineering, no surprises. If you need help with a new project or improving an existing one — send a short description, and I’ll quickly outline the best way to approach it.