As an experienced FullStack Developer with 3 years of hands-on experience, I expertise in establishing robust foundations for product development and leading development teams. My expertise spans both on-premise and cloud-based solutions, with a focus on SaaS Application, AI Integrations Development, Chatbot Development, Mobile Application Development, Ecommerce Development. I drive digital transformation with a strategic approach to technology, ensuring scalable, efficient, and innovative solutions across various domains. Technical Proficiencies Frameworks: Node.js, React, Nest.js, React Native, Vue, Next.js Languages: JavaScript, TypeScript, Python Databases: MongoDB, PostgreSQL, MySQL, Redis, AWS DynamoDB, PineconeDB, ChromaDB Cloud Platforms: AWS (EC2, S3, Lambda), GCP AI/NLP: ChatGPT API, Eleven Labs API, Microsoft APIs DevOps: NGINX, GitHub, GitLab, CI/CD pipelines Payment Systems: Stripe, Razorpay Third-Party Integrations: Google Cloud, Microsoft, Twilio, Cal.com, Pexels, Pixabay, Unsplash APIs Development Focus: 1. Web and Mobile Apps: Building responsive and scalable applications using React and React Native. 2. SaaS Applications: Creating scalable, cloud-based software solutions. 3. AI Applications: Integrating intelligent features and automation, including AI voice agents and chatbots. 4. E-commerce Solutions: Developing robust platforms with advanced features and secure payment processing. 5. Plugin Ecosystems: Designing and implementing extensible platforms. 6. Cloud-based Solutions: Leveraging AWS services for scalable and efficient applications. 7. Data Management: Implementing efficient data storage and retrieval systems using various databases and vector search technologies. Key Projects & Achievements a. Saas Application Development : Plugin Ecosystem and AI Integration 1. Designed and developed scalable, cloud-based software solutions. 2. Implemented multi-tenancy architecture for efficient resource sharing and isolation. 3. Created customizable user interfaces to meet diverse client needs. 4. Developed robust API integrations for third-party service connections. 5. Implemented automated billing and subscription management systems. 6. Ensured data security and compliance with industry standards. 7. Designed and implemented analytics and reporting features for business intelligence. 8. Designed and implemented a plugin ecosystem for extending platform functionality. 9. Developed an AI voice agent using Eleven Labs and Microsoft APIs for high-quality MP3 generation. 10. Created a plugin for AI-generated videos using ChatGPT and other AI libraries. b. AI-Powered Content Generation Platform 1. Developed a web application for AI-generated blog content. 2. Implemented data scraping logic from blog URLs. 3. Integrated ChatGPT API for generating embeddings and content sections. 4. Designed vector search functionality and efficient data chunking using ChromaDB. 5. Created user authentication and blog editing features. 6. Developed a POC demonstrating the generation of personalised dating bios, replies, and social media posts. 7. Utilised ChatGPT to generate contextually relevant and engaging content based on user input. 8. Integrated Stripe payment gateway for secure transactions and subscription management. c. Chatbot Development 1. Developed an MVP chatbot using Twilio services. 2. Integrated calendar services and Cal.com API for real-time bookings. 3. Created an admin panel for booking management. 4. Implemented AWS DynamoDB for data storage and AWS Lambda for serverless computing. 5. Developed long-term support with translations for Arabic language. d. Mobile Application Development 1. Built a cross-platform mobile application using React Native. 2. Developed provider-side logic for profile and service management. 3. Integrated payment gateway and implemented Escrow functionality. 4. Managed cloud deployments, services, and CI/CD pipelines. e. E-commerce Development 1. Developed an advanced admin panel for product and order management with multi-gateway payment support (Stripe & Razorpay). 2. Integrated AWS S3 with pre-signed URLs for secure file uploads and deployed using NGINX for load balancing. 3. Enhanced security through JWT authentication and rigorous compliance standards. Development Approach I focus on creating scalable, efficient, and user-friendly applications. My experience spans from front-end development using modern frameworks to back-end solutions leveraging cloud services and AI technologies. I prioritise code quality, performance optimization, and seamless integration of various technologies to deliver robust and innovative solutions across web, mobile, and cloud platforms.

Available for new projects, 100% job success, 5 years on Upwork Technologies I'm skilled at: 🛠 RAG systems, Backend and Cloud development, AWS EC2/RDS/S3/Mongodb 🛠 DevOps and cost optimisation: GoogleCloud, Azure Cloud, AWS; Terraform/Ansible 🛠 HuggingFace LLM/Transformers API/OpenAI/Ollama/TGI/Embeddings/Milvus/PgVector 🛠 MongoDB/ElasticSearch/SQL/Vector DB/Qdrant/Milvus/pgvector/sentence transformers 🛠 Django/Flask/FastAPI/Spring/API development/Docker/Kubernetes 🛠 n8n/LLM deployment open-source/serverless LLMs/batch LLM tasks/llama3/deepseekr1 🛠 Data mining, data science, ETL, PowerBi 🛠 Full scale scrapers (Scrapy/ScrapyRT/Splash/Zyte/Crawlera, browser emulation) 🛠 Bypass Cloudflare/Datadome/PerimeterX/Akamai/reCAPTCHA/hCaptcha/image captcha 🛠 Inference/Fine-tuning/Quantization/text-to-text/image-to-text/spech-to-text 🛠 Elasticsearch/AWS Athena 🛠 TOR relays, .onion websites data extraction, TOR nodes 🛠 pyTesseract OCR, AWS TextTract, open-cv2, LLMs for ETL 🛠 Bots development (Discord, Telegram, Microsoft Teams) 🛠 Python 3, Java, JavaScript, NodeJS, Ruby 🛠 Lua/Shell scripting/Linux admin

I specialize in developing custom Python solutions with a focus on financial APIs, automation, machine learning, and web scraping. With a perfect Job Success Score, I have consistently delivered high-quality code to all completed projects. My expertise lies in creating practical solutions for real-world business problems. I have developed trading bots using IBKR, built and managed data scraping systems, implemented machine learning models, created custom automation tools that save time and increase efficiency. I have successfully developed systems for historical data collection, trading strategy implementation, and real-time market data visualization. Python is my primary language, and I take pride in writing clean, maintainable code that addresses your specific business requirements while being easy to extend and update. Communication is central to my approach. Clients appreciate my responsiveness and ability to translate technical concepts into terms that make sense for their business goals. I focus on understanding your needs thoroughly before starting development, providing regular updates, and being available to discuss project progress. For data-driven projects, I can help you extract meaningful insights through custom Python scripts, data processing pipelines, and visualization systems. Whether you need market data analysis, automated web scraping, or integration with financial APIs, I deliver solutions that provide tangible business value. I approach each project with a problem-solving mindset, working with you to find the most efficient path to achieving your goals. Let's discuss how my Python development expertise can help automate your workflows, analyze your data, or build the custom tools your business needs.

Hello! I'm Vlada Sotnyk, a proficient Python developer with a knack for tackling diverse programming tasks ranging from minor tweaks to substantial script analysis and development. My expertise lies in creating efficient parsers, integrating various libraries, and dissecting old scripts to enhance functionality and performance. Key Skills and Technologies: Web Scraping and Automation: Skilled in extracting data from websites using advanced web scraping techniques. Proficient with tools like Playwright for automation and BeautifulSoup (BS4) for parsing HTML pages, enabling the collection and processing of web data efficiently. Python Libraries: Extensive experience in utilizing a wide range of Python libraries for various tasks, ensuring the best tools are applied for optimal results. Flask Framework: In-depth knowledge of the Flask framework, allowing me to build lightweight and powerful web applications. Whether it's developing new features or debugging and improving existing code, I leverage Flask to deliver clean, maintainable, and efficient web solutions. I thrive on challenges and am always eager to employ my programming skills to solve complex problems. With a detail-oriented approach and a commitment to quality, I aim to deliver projects that exceed expectations. Whether you need a custom web scraper, a dynamic web application, or maintenance on existing projects, I'm here to help bring your ideas to life with professionalism and expertise. Let's connect and discuss how I can contribute to your project's success! (and) Creative desinger with a great desire to work in the field of Web desing and IT services. Have general education skills in Tilda

🚀 With over 8 years of experience as a senior software and data engineer, I’ve honed my expertise in crafting innovative solutions in software development and data engineering. 📊 My journey began with a bachelor’s degree in software engineering and a master’s degree. 🎓 Currently, I’m pursuing a PhD in computer science to fuel my passion for technology and innovation further. 💡 🐍 Throughout my career, I’ve been deeply involved in diverse Python projects, crafting efficient and scalable solutions to meet various needs. 🌐 My proficiency in Python empowers me to tackle complex challenges and deliver high-quality software solutions. 🛠️ My core skills include: • Python 🐍 • Django 🌐 • Flask 🍶 • FastAPI 🚀 • AWS ☁️ • Software Architecture 🏛️ • PostgreSQL 🐘 • Data Engineering 📊 • Databricks 🔥 • Pandas 🐼 📚 I’m a firm believer in continuous learning and constantly strive to enhance my skills to produce top-notch code and data solutions. ✨ Beyond coding, I’m an avid sports enthusiast 🏃‍♂️ and regularly engage in various sports activities to stay energized and focused. 🏋️‍♂️

I repair, build, and scale high-concurrency data pipelines. When standard web scrapers fail against advanced bot detection, TLS fingerprinting, or complex login workflows, I engineer the systems that get your data flowing again. With over 7 years of experience in backend development and enterprise automation, I specialize in extracting reliable data from heavily protected targets. I currently manage concurrent extraction architectures across more than 200 complex websites, navigating advanced anti-bot measures and network resets seamlessly. My Core Capabilities: - Anti-Bot & Security Bypass: Defeating Cloudflare, DataDome, and TLS fingerprinting using advanced browser automation tools like Playwright, DrissionPage, and Camoufox. - High-Concurrency Extraction: Architecting highly concurrent, lightning-fast extraction engines in Golang and Python to handle massive daily volumes (2M+ daily requests) without dropping requests or burning proxies. - Enterprise Cloud Infrastructure: Deploying scalable, serverless data pipelines and backend services using AWS (Lambda, SQS, DynamoDB). Reliable Delivery: Clean, automated exports to PostgreSQL, MySQL, JSON, or custom REST APIs (Django/FastAPI). I do not just write fragile scripts; I build robust extraction pipelines with built-in monitoring, retry logic, and error handling so we can adapt quickly when a target site updates. Before we start, I am happy to review your target URL and tell you exactly which security layer (TLS, JS challenge, behavioral) is blocking your current setup. If your current data pipeline is broken, or you need to extract data from a highly protected source, let's discuss how to unblock your workflow.

I'm a self-taught Python developer with 3 years of hands-on experience. My main areas of focus are web scraping, web automation, API integration, and backend development using Django. I also build Telegram bots and create automation workflows with tools like Make. Here are some projects I’ve enjoyed working on: ✅ Automating workflows on Google Cloud ✅ Scraping websites to help businesses generate leads ✅ Writing custom scripts for various Python automation tasks ✅ Building browser automation tools for repetitive processes ✅ Developing Telegram bots that simplify business workflows ✅ Integrating third-party APIs with CRM systems to meet specific client needs ✅Creating scalable backend systems for websites I’m committed to delivering solutions that make a real impact, and enjoy finding creative ways to solve challenges. Let’s chat if you think I can help with your project!

Overview I build AI-powered web apps, SaaS platforms, internal tools, and automation systems that help businesses save time, organize data, and run workflows more efficiently. A good AI product needs more than a nice interface. It needs a reliable backend, clean data flow, secure APIs, stable integrations, and AI features that actually fit the business process. I can help you build or improve your product from idea to deployment. What I can help with • Full-stack SaaS and internal business apps • AI-powered web apps and business tools • LLM integrations with OpenAI, Claude, Ollama, LangChain, RAG, embeddings, and vector search • Backend APIs using Python, FastAPI, Django, Flask, or Node.js • Frontend dashboards using React, Next.js, TypeScript, Streamlit, and admin panels • Databases using PostgreSQL, PGVector, SQL, Redis, SQLite, and Supabase • API integrations with CRMs, Google APIs, OAuth, webhooks, payments, calendars, and third-party platforms • Workflow automation, background jobs, scheduled tasks, and data pipelines • Browser automation using Playwright for business workflows and data collection • Document automation with OCR, PDFs, invoices, reports, scanned files, and AI parsing • Cloud deployment using Docker, Linux, Nginx, AWS, Google Cloud, VPS, and GitHub Actions Systems I build • AI agents and LLM-powered business tools • SaaS dashboards and admin panels • CRM and lead management automation • Document processing and OCR pipelines • Data extraction and reporting systems • API-first backend platforms • Internal workflow automation tools • Cloud-hosted web applications Why work with me My background is in electronic engineering, software development, automation, AI tools, and backend systems. I focus on building practical products that solve real business problems — not just small scripts. I can understand your workflow, design the right system, build the backend and frontend, connect APIs, add AI where it makes sense, deploy the app, and explain everything clearly. If you need a full-stack AI developer to build or improve an AI product, SaaS platform, internal tool, automation system, or backend application, I can help.

✅ 𝗠𝘂𝗹𝘁𝗶𝗽𝗹𝗲 𝟳-𝟴 𝗳𝗶𝗴𝘂𝗿𝗲 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀 & 𝗦𝗮𝗮𝗦 𝗰𝗹𝗶𝗲𝗻𝘁𝘀/𝗮𝗽𝗽𝘀 𝗮𝗰𝗾𝘂𝗶𝗿𝗲𝗱. ✅ 𝟳𝟱+ 𝗮𝗽𝗽𝘀 𝗯𝘂𝗶𝗹𝘁. 𝟭𝟭+ 𝘆𝗲𝗮𝗿𝘀 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. ✅ 𝗔𝗰𝗰𝘂𝗿𝗮𝘁𝗲 & 𝗴𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲𝗱 𝗾𝘂𝗼𝘁𝗲𝘀 𝘄𝗶𝘁𝗵 𝟯𝟬-𝟰𝟬% 𝗹𝗼𝘄𝗲𝗿 𝗰𝗼𝘀𝘁𝘀 𝗮𝗻𝗱 𝗱𝗲𝘃 𝘁𝗶𝗺𝗲𝘀 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗽𝗿𝗼𝗽𝗿𝗶𝗲𝘁𝗮𝗿𝘆 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸 𝘂𝘀𝗲(prebuilt-SaaS code). ✅ 𝗣𝗵𝗲𝗻𝗼𝗺𝗲𝗻𝗮𝗹 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝘀𝗸𝗶𝗹𝗹𝘀. 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗱𝗲𝘃 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝗳𝗼𝗹𝗹𝗼𝘄𝗲𝗱 𝗯𝘂𝗶𝗹𝘁 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗼𝘁𝗵𝗲𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗲𝘀. ✅ 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀, 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲-𝗿𝗲𝗮𝗱𝘆 𝗳𝗿𝗼𝗺 𝗹𝗮𝘂𝗻𝗰𝗵. ✅ 𝗨𝗦 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝘁𝘆. Hi, I’m Andrew! I specialize in delivering polished SaaS apps consistently focused on earning revenue. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗮𝗻𝗱 𝗶𝗳 𝘁𝗵𝗲𝗿𝗲’𝘀 𝗮 𝗹𝗶𝗸𝗲𝗹𝗶𝗵𝗼𝗼𝗱 𝗼𝗳 𝗮 𝗴𝗼𝗼𝗱 𝗳𝗶𝘁 𝘁𝗼 𝘄𝗼𝗿𝗸 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿, 𝗜’𝗹𝗹 𝗶𝗻𝘃𝗶𝘁𝗲 𝘆𝗼𝘂 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮 𝗰𝗼𝗺𝗽𝗹𝗶𝗺𝗲𝗻𝘁𝗮𝗿𝘆 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 🗣 𝗝𝗼𝗵𝗻 𝗠𝘂𝗹𝗹𝗲𝗻𝗵𝗼𝗹𝘇 - 𝗛𝗲𝗮𝗱 𝗼𝗳 𝗦𝗮𝗹𝗲𝘀, 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 - 𝗨𝗯𝗲𝗿 𝗘𝗮𝘁𝘀 ❝ Andrew is the most skilled freelancer and developer I have ever worked with, and I have worked with a lot. He was able to take very broad ideas and turn them into actionable insights and plans in a way I could never imagine was possible. Andrew is the best possible thing to happen to our business and the definition of a true professional. I could not recommend him enough. Anyone who has the opportunity to work with Andrew should consider themselves extremely lucky. ❞ I excel at expertly guiding the app dev process to max out your revenue-earning potential in contrast to your costs, and to steer you away from common SaaS app pitfalls. Client Outcome Examples: ⚡ amzalert.com (8-Figure Acquisition - Rebuilt In 4 Months) ⚡ launchcontrol.us (8-Figure Annual Recurring Revenue - ARR) ⚡ GuestBan.com (Concept-To-Live in 5 Months - 1M+ Monthly App Checkins) My support is based on hard-won successes built through more than a decade of SaaS app obsession. Most of my clients are: ☑️ Existing Businesses - Post-revenue ☑️ Solopreneurs & Small Teams - Wanting to build an MVP app ☑️ Funded Startups - Focused on turning funding into MRR ☑️ Existing Early Stage SaaS - Want to rebuild and scale up I’m the founder of a small, hand-picked team of talented humans. I’m personally involved in all projects, and we only employ senior developers and native English speakers from the US for project management and communication. My team and I are able to consistently reduce dev costs by about 30-40% by leveraging pre-built development frameworks for common app experiences like the user login or checkout, for example, while reserving valuable dev hours for truly custom functionality. Every project we build delivers: 📱Cross Device Compatibility - Desktop - Mobile - Tablet 📈 App Speed Optimization 🧩 Scaleable - Cost-Effective Feature Addition Potential 🛡️ Security 📊 User Analytics & Internal Dashboards 🌐 Multi-Language Localization 🤖 Quality Assurance - QA 📜 Paid User Subscription, Billing & Renewal Management Thanks for taking the time to learn more about me. Invite me to your project or send me a direct message if you’re interested in working together. Talk soon! Andrew Mace - Founder - Lean Engineering Highlights of the work I have extensive experience in includes: SaaS MVP • AI Automation • No-Code/Low-Code • Process Automation • RPA • .NET 8 • Python • AWS • Azure • Docker • Serverless • OpenAI / ChatGPT • Generative AI • Zapier • Make.com • UiPath • Power Automate • n8n • Bubble • Airtable • Stripe • PayPal • Twilio • Slack • Teams • REST APIs • Webhooks • SQL • PostgreSQL • Redis • Power BI • KPI Dashboards • ETL • Airflow • Real-Time Chat • Push Notifications • Subscription Billing • CRM Integration • Lead Generation Bots • Data Analytics • Digital Transformation • Workflow Automation • Rapid Prototyping

You know your industry. You can see the product that should exist. You just need Someone who can build it and lead the build, not wait around for instructions. That's what I do. I'm a full-stack developer who helps non-technical founders in real estate and fintech turn their industry knowledge into a real, finished product. You know the business. I handle the tech decisions and the building. I lead, I move fast, and you don't have to manage me. Top Rated Plus, 100% Job Success, with live products and 5-star reviews. What I've built, start to finish: - A private real-estate lending platform, with exact, traceable money calculations and many investors tracked in one loan. - A live property-transparency platform (5-star) with map search and a document-scanning pipeline. - A tool (5-star, in real use) that pulls company data from the web, scores it with AI, and makes it searchable. - A health-assessment app (5-star) with a scoring system that the admin can adjust. - Real-estate data pipelines (Zillow, LoopNet, Redfin) that cut scraping costs by about 75%. Why I'm a partner, not just a coder: - I take the lead. I turn what your business needs into a clear plan and a shipped product, and I tell you what I'd build and why. - I get the numbers exactly right when money is involved. - I build web scraping and data pipelines that keep working when others break. - I run local AI models (Phi-3, Qwen) in production, not just API calls, to save cost and protect your data. Stack: Python/FastAPI, Next.js/React, PostgreSQL, Celery/Redis, Playwright/Zyte, Stripe, Supabase, OpenAI + local LLMs, deployed on AWS/Vercel/Render. How I work: I lead the build, show you a working demo every week, and explain things in plain language, no jargon. Most MVPs ship in about 4 weeks. If you're a founder who knows your industry and wants a partner to build and ship The product, tell me what you're building and I'll tell you how I'd approach it.