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💼𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: Reverse Engineering, Debugging, Unpacking, Data Extraction, Game Automation and Modifications, Malware Analysis, Desktop Apps, Windows Kernel Drivers, Shellcodes, Hooks, Injects, Anti-Cheat Dev 🛠️𝗦𝘁𝗮𝗰𝗸: IDA Pro, Ghidra, WinDbg, x64dbg, x86_64, Windows internals, PE Format, Cheat Engine, Kernel Drivers 💻𝗣𝗿𝗼𝗴 𝗦𝘁𝗮𝗰𝗸: Python, Assembly (FASM), C, C++

🚀 Experienced Ruby on Rails developer 🚀 | 🏎️💛 Yellow Miata driver 💛 If you’re looking for a Ruby on Rails developer who understands SaaS products, a full stack developer Saas who sees the entire system, or a react developer who values real user experience — let’s talk. I’m a Ruby on Rails developer with strong product thinking who helps startups and growing companies build reliable, scalable, and maintainable platforms for long-term success. My background includes building modern web app platforms and scalable web application systems with custom web design, software architecture and design, and scalable API integration practices. As a Ruby on Rails developer, I work closely with founders, CTOs, and product teams to turn business requirements into stable, production-ready solutions. I have extensive experience as an AI Saas developer, focusing not only on backend implementation but also on growth, retention, and monetization. As a web app developer, I design systems around real workflows, combining strong web app design and performance using JavaScript, CSS, HTML5, Bootstrap, and TypeScript. 🧠 Deep product-focused experience With over 9 years of experience, I’ve worked on everything from MVPs to high-traffic systems. I’ve contributed to multiple products as a SaaS developer, including chatbot Saas solutions and platforms powered by ruby on rails openai. My work often involves building scalable web application development systems with strong architecture, RESTAPI, API development, and Database architecture. I’ve also worked on frontend integrations as part of Ruby on Rails React stacks, ensuring smooth UX and consistent web design across products. As a full stack ai saas developer, I bridge frontend, backend, and infrastructure to deliver complete solutions, including saas mobile app integrations where needed using React Native, Next.js, Vue.js, Angular, and Node.js. ⚙️ What I do Ruby on Rails application development from MVP to scale SaaS platform architecture and system design Custom backend logic and API development (REST & GraphQL) Background jobs, queues, and async processing Cloud deployments, CI/CD pipelines, and automation Third-party integrations and advanced workflows Beyond traditional SaaS platforms, I’ve worked on ecommerce systems and custom solutions as a web developer, including Shopify integrations. I’ve also built AI-powered features as part of AI Saas platforms, acting as a full stack saas developer ai agents to deliver intelligent automation, AI Agent Development, Large Language Model integrations, Retrieval Augmented Generation, Vector Database, machine learning, and LLM Prompt Engineering. I also collaborate with teams as a saas designer, contributing to product structure and usability, and can support product presentation through saas demo video creation when needed. ✅ What you get working with me Clean, well-structured code and scalable architecture. As a SaaS developer, I focus on long-term product success. As a web application developer, I deliver solutions aligned with real business needs and support developing and maintaining the application and optimizing performance within an existing Ruby on Rails project. 🔹 Proven real-world impact I helped scale a startup product to nearly 1,000,000 users, shaping my approach to performance and reliability. I’ve also worked on systems requiring high data integrity and integrations across multiple services using PostgreSQL, Redis, MySQL, SQL, Firebase, Heroku, Amazon web services, and DevOps practices. 🏆 9+ years as a Ruby on Rails Developer with 150+ software products delivered 🚀 SaaS Developer | 26+ platforms built & scaled 💻 As a Web Application Developer I helped scale a startup product to nearly 1,000,000 users, shaping my approach to performance and reliability. ⭐️ Top Rated | 100% Job success score | 5-star reviews only 💰 $10K+ earned on Upwork and 5,000+ hours worked on different projects as a Full stack developer 🤖 15+ AI Products Delivered | Agents, RAG & Automation Systems 🔗 110+ Integrations built | Stripe, Shopify, OpenAI, Twilio & more as a React developer 🌍 Clients across 9+ countries | Long-Term Partnerships & Repeat Business 🔒 Production-Ready Solutions | Secure, Scalable & Maintainable Code Experienced as a Rails + React Developer, Ruby on Rails architect, Senior Ruby on Rails Developer, senior Rails Developer, Ruby on Rails engineer, Full-stack web developer, and senior full-stack Ruby on Rails engineer with a strong background in Ruby on Rails. 🤝 Let’s build something solid If you’re looking for a Ruby on Rails developer who understands SaaS products, a full stack developer who sees the entire system, or a react developer who values real user experience - let’s talk.

Mobile app developer with 14+ years of mobile app development, 80+ apps shipped, and a Flutter app past 2M+ users. ⭐ Top Rated on Upwork since 2018 · 5.0 on Clutch · 4.93 on GoodFirms If you're starting a Flutter app from scratch, I take it from concept to the App Store. If your iOS or Android app has stalled, I get it shipping again. If a previous mobile app developer missed what you actually needed, that's where I usually come in. 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂 𝗴𝗲𝘁 ✔️ As a Flutter developer I ship one codebase to iOS and Android at once, up to 40% cheaper than two native builds. ✔️ The mobile app design and the mobile app development come from the same person. No handoffs, no two contractors blaming each other. ✔️ Healthcare apps that pass HIPAA and GDPR. Logistics apps that keep working when the signal drops. ✔️ Hire the wrong mobile app developer and the scope gaps surface at the first build. I flag them earlier, and clients have brought me in to redo exactly that. ✔️ 80+ apps in, I have already hit the problems your build will run into. One app I built passed 2M+ users. Send me what you're building and I'll reply with a scope estimate and the first technical decision I'd settle. Clients come back a year in after hiring the wrong mobile app developer first; early hires save months. 𝗥𝗲𝗮𝗱𝘆 𝘄𝗵𝗲𝗻 𝘆𝗼𝘂 𝗮𝗿𝗲 Best, Stan ————— Selected work and skills: HEALTHCARE APP DEVELOPMENT, 25+ projects - Healthcare App Developer, Secure Care UK medical transport: 5,000+ secure patient transfers a year across a 25+ vehicle fleet and a 24/7 control room. - HIPAA Developer, secure PHI handling for 5,000+ patient records - HL7 FHIR syncing records across 3 hospital systems - GDPR compliance on 100% of builds - Healthcare Apps prompting status updates every 30 minutes across 4 job levels - Healthcare SaaS development, Secure Care UK: replaced a third-party subscriber platform, cutting running costs $3,000+ a month. - Full Stack Developer Healthcare, Secure Care UK across web and mobile: 5,000+ transfers coordinated from one system. - Flutter developer, Patient Gateway UK medical transport: Firebase sync and real-time driver tracking with dispatch updates under 5 seconds. - Flutter Developer, Rheo health wearable: 5 vital-sign categories streamed over LTE in real time, secure PHI handling tested across iOS, Android, and web. - Mobile App Developer, fertility health app: bug-free rate raised 85% to 96% in a two-week retest, delivered in 3 months against a 4-month estimate. LOGISTICS APP DEVELOPMENT, 20+ projects - Logistics App Developer, last-mile delivery app: satisfaction raised 35% to 85%, wait times cut 34% in low-signal areas, 12 partners signed in 3 months. MOBILE APP DEVELOPMENT, 80+ apps - Flutter developer, mobile app development: 30+ Flutter projects, build cycles cut 50% and costs 40% versus native through Flutter development. - Flutter App Developer, Ziroop: 2 app stores from one Flutter codebase, 50,000+ installs in year one. - Mobile App Developer, Quran learning app: 2M+ users, rebuilt in 4 months. - Flutter Developer, government train ticketing app: shipped in 6 months against a 7-month deadline, NFC storing 5 tickets offline across 20 screens. - iOS Developer and Swift iOS Developer: native iOS apps shipped since 2012 in Swift, one rebuilt to full feature parity in 8 weeks. - Android App Developer: rebuilt an unstable Android app, crashes cut 90% and store rating lifted to 4.7. - Mobile app developer, Android Developer and Mobile Developer: native and cross-platform mobile development across 80+ apps. FULL STACK - Full Stack Developer: 150+ products shipped end to end, frontend, backend, and database. - Full Stack Mobile Developer: frontend plus backend on 30+ products, delivered end to end. MOBILE APP DESIGN, 40+ designs - Mobile app designer, mobile app design: 70+ wireframes and 40+ mobile app designs, engagement up 40%. - Mobile UI UX Design: consistent UI across both platforms on 40+ screens, task completion up 30%. - Mobile App UI UX Design in Figma: Figma App Design and Figma Mobile App Designer work across 35+ flows. REACT NATIVE - React Native Developer and React Native Development: 10+ React Native apps on the App Store and Google Play as a React Native Developer Expo, React Native App Developer, and React Native Expert, spanning React Native Expo, React Native iOS, React Native Firebase, and React Native UI UX, with 12-19% better repeat usage. MORE - AI App Developer and AI Mobile App Developer: AI Mobile App Development adding on-device intelligence that cut manual work 60%. FlutterFlow developer prototypes built 3x faster in FlutterFlow. Full Stack App Developer with Python and Wordpress backends, React Native, and mobile React apps across 30+ products. SKILLS: iOS Development, Android App Development, Swift, Node.js, PHP, JavaScript, Java, Desktop Application, Web Design.

I specialize in 2D Motion Graphics, creating custom Logo Animations, Lottie (.json), and UI/Web animations. I create custom, unique, and engaging logo animations, deliver them in any format, aspect ratio, and frame rate you need, and provide the project file upon request once the contract is completed. I also know exactly how to navigate the strict technical limitations of the Lottie format. My workflow ensures that your logos, icons, and any other animated elements of your website or app are not only visually stunning and clean but also perfectly optimized, lightweight, and ready for seamless integration on any platform (iOS, Android, or Web). 📌 My Expertise Includes: ▫️2D After Effects Animation; ▫️Advanced Lottie (.json) creation and optimization; ▫️Custom Logo Animation & YouTube Intros; ▫️Animated UI/Web elements; ▫️Workflow Automation (JSX scripting for After Effects); ▫️Premiere Pro Video Editing; ▫️MOGRTs for Premiere Pro. ✅ Why choose my services? I guarantee a highly individualized approach, strict adherence to technical constraints, and a final product that integrates seamlessly into your platform. Feel free to invite me to your job or send a direct message. Let's create something amazing together! 🤝

🤝 I can improve your thoughts and create for you expert advisors (EAs, bots), indicators and scripts for the MetaTrader 4, MetaTrader 5 using MQL4, MQL5. Automating your strategies, for more convenient trading, and for testing your trading strategies. Developing automated trading systems, custom technical indicators, and trading scripts for trading and analyzing Forex, and various financial markets. This saves you time and allows you to make your trade more profitable. Using my experience in trading and programming (since 2014), I help other traders implement and test their trading ideas. Also, I have experience trading Forex since 2011, which allows me to better understand the needs of traders and provide a better service. Customer services I offer: - MQL4 & MQL5 Programming; - source code providing; - clean coding (self-explanatory); - reliable programming; - quick turnaround; - long support; - if required, I will sign NDA. Thanks to my knowledge and experience, as well as the fact that I like doing what I do – you can entrust me with your projects and I will always complete your project perfectly and on time! If you have any questions – help and support your product in the future. Together we will make your trade profitable. I work and help people who are just starting trading, beginners and professional traders, investment advisors, and portfolio managers. 🤝 I am always glad to have long-term partnerships.

🚀 Scalable Solutions with React & Full Stack Development 🚀 📅 20+ years of experience & Master’s in Computer Science 👥 Leading a dedicated team of 25 software developers 📦 70+ completed production-ready projects 💰 $25M+ value generated through high-level architectural solutions With 20+ years of experience, I am a Full Stack Developer, Web Developer, and Mobile App Developer delivering scalable SaaS platforms, enterprise systems, and modern web development solutions for fintech, healthcare, marketplaces, logistics, and real estate industries. As the founder of a 25+ engineer software company, I lead teams building production-ready applications with clean architecture, high availability, and long-term scalability. Our team has successfully delivered 70+ production-ready projects supporting large user bases and helping businesses improve operational efficiency, scalability, and product delivery speed. We specialize in enterprise-grade SaaS platforms, React applications, backend systems, and cross-platform mobile app development. Every Full Stack Developer, React Native Developer, and Web Developer on my team is experienced in scalable frontend and backend architecture. We build robust React Node applications, business dashboards, APIs, marketplaces, and SaaS systems with clean, maintainable code. 💻 Core Technologies & Database Architecture Our core stack includes React.js, Next.js, Node.js, React Native, Flutter, PHP, Laravel, Python, TypeScript, Supabase, Firebase, PostgreSQL, MongoDB, and MySQL. As a React Native Developer and Mobile App Developer team, we create high-performance cross-platform mobile applications for iOS and Android with modern UI/UX and scalable backend infrastructure. As a Web Developer and Full Stack Developer, I design scalable database systems using MySQL, PostgreSQL, MongoDB, and Supabase with optimized schemas, secure APIs, and realtime functionality. We frequently deploy solutions on AWS, Google Cloud, and Vercel while ensuring scalability, security, and performance. We also provide complete web development services including frontend implementation, backend engineering, API integrations, cloud deployment, and DevOps workflows. Our experience includes enterprise SaaS systems, marketplaces, dashboards, PWAs, and mobile platforms. ⚡ AI Integration & Scalable Systems We specialize in AI-powered Full Stack solutions integrating OpenAI, ChatGPT, RAG systems, automation workflows, and AI APIs into modern web and mobile applications. As a Python Developer and AI-focused engineering team, we build intelligent backend services, AI assistants, automation systems, and scalable SaaS platforms. Whether modernizing legacy PHP systems, building React Native applications, or developing modern React Node SaaS products, we focus on scalable architecture and measurable business results. 👥 Delivering applications with 120K+ active users Our experience includes: • SaaS platforms & marketplaces • Enterprise dashboards & admin systems • AI-powered applications • Mobile app development • React Native development • Custom APIs & backend systems • Web development & frontend engineering • Realtime systems & cloud infrastructure • WordPress developer services for CMS-driven projects ⚙️ Additional Expertise React.js, Next.js, Vue.js, Svelte Node.js, PHP, Laravel, Python React Native Developer & Mobile App Developer solutions Flutter mobile applications Supabase, Firebase, PostgreSQL, MySQL, MongoDB AWS, Google Cloud, Vercel AI integrations & automation workflows MERN stack architecture API integrations & scalable backend systems 🤝 Why Work With Me ✔ 70+ completed production-ready projects ✔ Experienced Full Stack Developer & Web Developer team ✔ Strong React Native Developer and Mobile App Developer expertise ✔ Deep experience with scalable SaaS architecture ✔ Focus on performance, scalability, and clean code ✔ Long-term product development and technical leadership If you need a Full Stack Developer, Web Developer, Mobile App Developer, React Native Developer, Python Developer, or scalable SaaS engineering team — let’s connect. 👉 Click “Invite” or “Hire” and let’s discuss your project.