-I'm a developer with experience in building Machine Learning Models, Mainly Computer Vision. -I've experience with TensorFlow, Pytorch, and etc....

Are you looking for a motivated and professional developer? You’re on the right page.👌 Hi, my name is Natalia, I'm a skilled and dedicated Back End developer with 5,5 years of experience in Web develoment. My core competencies include working with: 📌Python 📌FastAPI 📌LangChain 📌LlamaIndex 📌AWS I have experience with several popular frameworks, which allows me to choose the best tool for creating a high-quality user interface according to your needs. Moreover, I am good at working in a team and appreciate the exchange of knowledge, but I am also able to independently solve problems and look for new solutions to improve the quality of work. 💪 More about my skills that will help us achieve the best result: ✅ Django, Flask, FastAPI, SQLAlchemy, Alembic, OpenAI Whisper; ✅ PostgreSQL; SQLite, MySQL ✅ NoSQL - MongoDB, Redis, Neo4j; ✅ LangChain, LangGraph, LlamaIndex, AWS Bedrock, AWS Sagemaker, Whisper, ElevenLabs, FasterWhisper, MCP Server Connectors ✅ Git, GitHub, GitLab, BitBucket ✅ Agile, Scrum, Kanban, Waterfall, Pair Programming, Feature Driven; 🔹I am always striving for excellence and am ready to work on projects of any complexity. 🔹I am a fast learner and willing to learn new technologies and frameworks to stay up to date with the latest trends in the industry. 🔹I also appreciate quality communication, so I am ready to offer you timely communication and solutions that will be useful in the long run. 🔹I am sure my experience and skills can be useful for your company and I will gladly participate in your project. If this sounds like a fit for you, I’d love to chat – invite me to interview and grab some time.

Hey, I am a Senior AI/ML & Full-Stack Developer with a proven track record of delivering intelligent, production-ready web applications. I combine advanced Artificial Intelligence expertise with modern Full-Stack engineering to build solutions that are fast, scalable and business-driven. 𝗞𝗲𝘆 𝘀𝘁𝗿𝗲𝗻𝗴𝘁𝗵𝘀 𝘁𝗼 𝗮𝘀𝘀𝘂𝗿𝗲 𝘀𝘂𝗰𝗰𝗲𝘀𝘀: 💪 Outstanding communication skills and a strong sense of ownership for the work delivered. 💪 Comprehensive understanding of business dynamics, from conceptualizing POCs and MVPs to testing hypotheses, to crafting well-tested, maintainable applications that delight customers. 💪 Adaptable and responsive, effectively addressing challenges and adjusting to project requirements as needed. 💪 Committed to continuous learning and staying up-to-date with industry trends, ensuring cutting-edge solutions are employed in every project. ⚡𝗠𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗜𝗻𝗰𝗹𝘂𝗱𝗲: - AI Development & Machine Learning (ML): End-to-end design of Generative AI (GenAI), Retrieval-Augmented Generation (RAG), and predictive models using Python and cutting-edge frameworks. - AI Chatbots & AI Agents: Custom conversational systems powered by OpenAI, LangChain, and vector databases, deployed via FastAPI for real-time, human-like interactions. - AI Automation: Smart workflow automation and API integrations that reduce manual tasks and unlock operational efficiency. - Marketing Automation by using N8N. - Full-Stack Development: High-performance apps using Next.js, Node.js, React.js, and cloud platforms (AWS/Azure) to build scalable SaaS products. 𝐖𝐡𝐞𝐭𝐡𝐞𝐫 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝 𝐚𝐧 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫, 𝐨𝐫 𝐚 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐄𝐱𝐩𝐞𝐫𝐭 𝐭𝐨 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐞 𝐀𝐈 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐢𝐧𝐭𝐨 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐝𝐮𝐜𝐭, 𝐈 𝐜𝐫𝐞𝐚𝐭𝐞 𝐧𝐞𝐱𝐭-𝐠𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐨𝐧 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐭𝐡𝐚𝐭 𝐭𝐡𝐢𝐧𝐤, 𝐥𝐞𝐚𝐫𝐧, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐞

Hi, I’m Full Stack Game Developer, SaaS Architect and the founder of ZedStack, a consulting and development company focused on building production-grade digital products. I work hands-on with clients to design, build, stabilize, and scale complex systems — whether that’s an AI-driven product, a SaaS platform, a game, or a web/mobile application. I don’t just write code; I help turn ideas into reliable, real-world products that users can actually depend on. What I Do AI & Conversational Avatars • End-to-end AI systems and conversational avatars • Real-time communication and low-latency experiences • Backend logic, AI integrations, and interactive frontends SaaS Product Development • Full SaaS architecture and implementation • Authentication, user/org data isolation • Stabilizing prototype-grade systems for production use Games & Interactive Experiences (Unity) • Game development across multiple genres and platforms • Gameplay systems, UI, and performance optimization • Backend and live-feature integrations when required Web & Mobile Applications • Full-stack web and mobile app development • Modern frontend frameworks and scalable backends • Clean, maintainable, and testable codebases How I Work • I take ownership of the technical side so you don’t need to micro-manage • I’m comfortable working in existing codebases and repositories • I focus on stability, performance, and clarity — not quick hacks • I communicate clearly and flag risks early • I think in terms of systems, not just tasks Why Clients Choose Me • Principal-level engineering mindset • Strong balance of frontend, backend, and system design • Experience across AI, SaaS, games, and applications • Calm, focused execution during critical sprints • Long-term thinking, even for short-term work Experience Snapshot • 7+ years of professional development experience • 50+ completed projects • 4,000+ hours worked on Upwork • Extensive experience with direct, long-term clients Who I’m a Good Fit For • Founders building or stabilizing a product • Startups moving from MVP to production • Teams needing senior-level technical execution • Companies looking for a reliable long-term partner If you’re looking for a confident, technically solid engineer who can handle complex systems end-to-end, feel free to message me. I’m happy to review your project and suggest a clear, practical next step.

🚀 Building the Future, One Scalable Service at a Time In a world where milliseconds define user experience, I engineer backend and frontend systems that don’t just perform—they anticipate demand and scale effortlessly. Using cloud-native architectures and container orchestration, I transform complex challenges into seamless, resilient applications. 🌐 Core Technical Expertise ✅ Frontend & Backend Mastery: Advanced proficiency in React and Next.js for crafting dynamic, SEO-optimized, and highly responsive user interfaces. Deep experience with Node.js and Express.js to build scalable, secure, and maintainable RESTful APIs and server-side applications. ✅ Cloud-Native Architecture: Designing and deploying microservices on AWS, ensuring modularity, fault tolerance, and seamless scalability. Expert in AWS services including EC2, Lambda, S3, RDS, CloudFormation, API Gateway, and more to build resilient, cost-effective cloud infrastructure. ✅ Containerization & Orchestration: Proficient in Docker for containerizing applications, enabling consistent environments across development, testing, and production. Skilled in Kubernetes (K8s) for orchestrating containerized workloads, managing deployments, auto-scaling, and ensuring high availability. ✅ Search & Analytics: Implementing Elasticsearch to deliver lightning-fast, full-text search and real-time analytics, enhancing data accessibility and user engagement. 🔧 Advanced Technical Highlights ✅ Microservices Design: Architecting loosely coupled, independently deployable services using domain-driven design and event-driven patterns to optimize communication and data consistency. ✅ Cloud Infrastructure Automation: Utilizing Infrastructure as Code (IaC) tools like Terraform and AWS CloudFormation for repeatable, version-controlled infrastructure deployments. Building robust CI/CD pipelines with Jenkins, GitHub Actions, or AWS CodePipeline to automate testing, integration, and deployment. ✅ Performance & Scalability: Designing systems capable of handling millions of requests daily with low latency and high throughput. Employing caching strategies (Redis, CDN), load balancing, and auto-scaling to maintain seamless user experiences under heavy load. ✅ Security & Compliance: Enforcing best practices for authentication and authorization using OAuth, JWT, and AWS IAM policies. Ensuring data protection and compliance through encryption, secure API gateways, and continuous monitoring. ☁️ AWS Expertise — High-Level Overview ✅ Elastic Compute & Serverless: Using EC2 for customizable compute resources and AWS Lambda for event-driven, serverless functions that minimize operational overhead and scale automatically. ✅ Storage & Databases: Utilizing S3 for durable, scalable object storage and RDS/DynamoDB for managed relational and NoSQL databases optimized for performance and cost-efficiency. ✅ Networking & Security: Configuring VPCs, Security Groups, AWS WAF, and other services to create secure, isolated network environments and protect applications from external threats. ✅ Monitoring & Analytics: Implementing CloudWatch, X-Ray, and Elasticsearch Service for real-time monitoring, logging, and tracing to maintain system health and proactively troubleshoot issues. 💡 Why Choose Me? - Proven track record delivering end-to-end SaaS and MVP solutions that are scalable, maintainable, and aligned with business objectives. - Strong advocate of DevOps culture, enabling faster delivery cycles and higher quality through automation and collaboration. - Passionate about leveraging cutting-edge cloud technologies and modern frameworks to build future-proof, resilient applications. 📞 Let’s Build the Future Together! If you’re seeking a Senior Web Developer who can architect and deliver sophisticated, cloud-native web applications with a focus on scalability, performance, and innovation, I’m ready to collaborate and bring your vision to life. 🔖 Keywords #React #Nextjs #Nodejs #Expressjs #AWS #Docker #Kubernetes #Microservices #Elasticsearch #MVP #SaaS #CloudNative #Serverless #CI/CD #Terraform #CloudFormation #DevOps #OAuth #JWT #Redis #LoadBalancing #AutoScaling #API #REST #GraphQL #CloudWatch #Lambda #S3 #EC2 #RDS #DynamoDB #Security #Monitoring #Performance #Scalability

With over 15 years of experience, I partner with ambitious founders and businesses to transform complex ideas into high-performance web applications, SaaS platforms, and AI-integrated systems. As a full-service technical partner, I provide both strategic leadership and hands-on development, bridging the gap between your vision and successful execution. My expertise spans modern web technologies, AI/LLM integration, and cloud infrastructure, delivering solutions that drive tangible business growth. Why Partner with Me? 🛠️ End-to-End Technical Expertise: From strategic planning and Fractional CTO services to hands-on custom software development, I leverage deep experience across 15+ languages and frameworks (React, Svelte, SvelteKit, FastAPI, Node.js, Python, TypeScript, SQL, and more) to choose and build the optimal solution for your specific needs. 🤖 Cutting-Edge AI Development: Turn the latest AI innovations into business value. I specialize in AI-first development using tools like Claude Code, Gemini CLI, bolt.new, and v0. With experience teaching advanced AI development to hundreds of engineers, I create production-ready LLM agents, RAG systems, AI auto-triage solutions, and seamless OpenAI API integrations. 🌐 Modern Full-Stack Solutions: Expert in React, Svelte, SvelteKit, Electron, and React Native development. I also build Chrome extensions, implement advanced website scraping with anti-bot detection, and create cross-platform applications that work seamlessly across all devices. ⚡ IoT & Real-Time Systems: Design and implement complete IoT platforms using FastAPI, MQTT, and PostgreSQL, including firmware development with C++ and Arduino for hardware integration. 📈 Scalable & Resilient Architecture: Build a strong foundation for growth. Whether it's an MVP, microservices architecture, or high-performance systems using MongoDB, Redis, and RabbitMQ, I design solutions built to scale reliably. 🧩 Complex Problem Solving & Project Rescue: Drawing on doctoral-level research experience in Big Geospatial Data Management and extensive full-stack capabilities, I excel at tackling difficult technical challenges and turning around struggling projects. 🤝 Collaborative Partnership: Consider me your dedicated tech partner. Using agile methodologies, I work closely with you and your team, ensuring clear communication, alignment with business objectives, and successful project delivery. Recent Specializations: - AI-First Development with modern tools and frameworks - Live transcription systems and real-time data processing - Advanced web scraping with Puppeteer and BeautifulSoup - Cross-platform mobile development with React Native - Chrome extension development for enhanced web experiences - Teaching and mentoring engineers in advanced AI development My Process: 🔍 Discovery: Deep understanding of your business objectives and technical requirements. 🗺️ Strategy & Design: Collaborative planning and architecture design tailored to your goals. 💻 Agile Development: Iterative building with regular demos and feedback loops. ✅ Quality Assurance: Comprehensive testing and performance optimization. 🎉 Launch & Handoff: Smooth deployment and thorough knowledge transfer. Ready to build something great? Let's discuss how I can help bring your vision to life. Message me today to schedule a free 30-minute consultation and see if we're the right fit for your project.

⭐ Expert-Vetted Top 1% AI Expert on Upwork ⭐ (Not associated with any agency, Individual Freelancer) Seasoned professional with +7 years of expertise in AI & Machine Learning, web development, data scraping, and engineering. Helped businesses around the globe to integrate AI in their companies achieving high accuracy automation systems. Built full stack apps using most recent web technologies. Developed scrapers for high volume, distributed and fault-tolerant. EXPERIENCE: 🤖 Artificial Intelligence/Machine Learning: - LLMs, Chatbots, Fine-tuning Models, LangChain, LlamaIndex, RAG, Vector Databases, Prompt Engineering, GPTs, Claude, Stability, Chain of Thought, Agentic Systems. 🌐 Web Development: - Python APIs, JS, Next.js, System Administration 🕸️ Data Scraping: - Golang, Proxies, Captchas, Large Scale Scraping, Web Debugging I provide a complimentary 30-minute consultation to discuss your project and determine if we're the right match to collaborate. During our conversation, we will cover: - An overview estimate (a preliminary evaluation of your project's scope and limitations) - The most suitable tools for your particular needs - Potential challenges and their solutions - A timeline and key milestones aligned with your objectives Let’s connect! By getting in touch, you'll receive valuable insights with just a small time commitment.

Within the realm of back-end development, automatic deployment, database management and software engineering, I'll make systems that work. Core stack: Python + FastAPI async SQLAlchemy Pydantic v2 pytest + httpx GitHub Actions Docker Render deploy SQLite (dev) / PostgreSQL (prod) (I go by Arvin Nick, and I will highly appreciate it if you can call me that)

Leveraging over four years of hands-on experience, I am a results-driven Full Stack web Developer with a new passion for Generative AI. My expertise spans various domains, including Python, Django, LLMs, LangChain, React, Next.js, Vue.js, AWS, GCP, and Web Scraping. Key Skills: * Python Development * Django & Django Rest Framework (DRF) * React & Vue (Frontend) * AI Chatbot Development * Language Models (LLM) * AWS & GCP * Web Scraping & Selenium * Backend Development WHY CHOOSE ME? Working with me, you will get: - Scaling Excellence: Code that effortlessly scales 10x, without rewriting. 📈 - Communication Mastery: Track-proven positive feedback on top-notch communication. 💬 - Budget Brilliance: 90% on-time, on-budget project success. 💰 - Straightforward Realism: No beating around the bush; honest guidance every time. 🚀 - Risk-Free Guarantee: 100% refund if expectations aren't met. ⚠️ - Product-First approach: Data-driven decisions for impactful results. 🎯 - Rapid Response: Lightning-fast, <30 minutes response time whenever you reach out to me. ⚡

I build AI agents and automations n8n, Make, Zapier, RAG, custom LLM workflows that cut hours of manual work a day, plus Shopify tracking setups (GA4, GTM, Meta CAPI) that fix your ad data. Recent results: • Automated order processing for a Shopify store that saved [20+ hours/week] • Built a multi-agent RAG support bot that resolves [70%] of tickets without a human 🔹 AI Agents & LLM Engineering ✅ Custom AI agents that run real business processes end-to-end ✅ Multi-agent orchestration (manager/worker, research agents, agentic RAG) ✅ AI chatbots for support, lead qualification, and product recommendations WhatsApp, Instagram, Messenger, web ✅ Model fine-tuning and prompt/pipeline optimization when off-the-shelf isn't enough 🔹 Workflow Automation ✅ Make expert — advanced scenarios, data stores, API integrations ✅ n8n — custom nodes, multi-step workflows, external APIs ✅ Zapier business automations ✅ Custom backend glue when no-code hits its limits (Python, Node.js, FastAPI) 🔹 Shopify & E-commerce ✅ Conversion tracking: GA4 + Google Tag Manager, Meta Pixel + Conversions API (CAPI), server-side tracking, event deduplication ✅ Automated order flows, fulfillment logic, upsell pipelines ✅ HubSpot / ClickFunnels integrations — lead routing, order sync, email flows ✅ Dashboards for leads, orders, and analytics ⭐ How I work ✅ Production-ready systems with error handling, monitoring, and documentation ✅ Real backend engineering experience — not just no-code connectors ✅ Fast communication (I reply within a few hours) and clear scoping before we start Tell me what you're doing manually today, and I'll tell you exactly how I'd automate it. Send me a message, I'll respond with a concrete plan, not a copy-paste pitch.