In the company of containerization and orchestration with Docker (and Kubernetes when needed), I deliver robust, production-ready systems across data engineering, backend, frontend, and Web3. I extract, process and persist large datasets from diverse web sources, apply both NoSQL and SQL solutions, and deploy resilient services on AWS and GCP. I also design and run automated media pipelines that integrate LLMs and visual models for programmatic video generation. I build reliable scraping and ingestion systems for a wide range of sites and data types: E-commerce platforms (including hardened scraping strategies for bot-resilient sites) - Real estate portals - Academic and journal metadata / abstract extraction - Public/state resources (property registries, professional lists, parliamentary records) - Cryptocurrency rates, NFT collections, and real-time blockchain feeds - Flight records, news sources, YouTube (API v3), legal/public records, and other periodicals Technical highlights Languages & tooling: Python (Scrapy, BeautifulSoup, Pandas), Node.js (Puppeteer, Playwright), TypeScript, React. Backend & APIs: Django, Flask, Express; experienced building containerized microservices and WebSocket-driven architectures for live data streams. Data & BI: ETL, data modeling, dashboards (Power BI, Tableau, Metabase). Media & LLMs: End-to-end automated video systems using MoviePy, Manim, OpenCV + LLM integration (ChatGPT and similar); agentic architectures for sequential and hierarchical media/text generation. Systems & design: Software architecture, UML, developer-ready design docs, production deployment pipelines (Docker, CI/CD). Resiliency & scraping ops: Anti-bot–aware scraping strategies, compliant challenge handling with Playwright, adaptive throttling, and production-grade scheduling and error handling. Web3 & smart-contract experience: Designed, tested and deployed Solidity smart contracts (development and iteration in Remix); implemented end-to-end approval/commit workflows and event/log handling for on-chain state. Worked with ZkSync L2. Built a Vite + React frontend that integrates wallet/connect flows, submits transactions, waits for confirmations, and updates UI from on-chain events; implemented secure read/write flows, gas-aware UX, and multi-step transaction handling. Practical experience with testnet deployment, transaction lifecycle management, contract ABI handling, and frontend-to-contract integration patterns (wallet signing, transaction receipts, log parsing). Has experience both in hardhat and foundry Focus on maintainable, auditable smart contract structure and careful UX around asynchronous on-chain state. Other Telegram API integrations, legal/NLP tooling (court document parsers), experience with both ad-hoc scripts and scalable production services. Strong emphasis on observability, testing, and security practices — from unit & integration tests to sensible error reporting and monitoring. Architecturally, a big fan of TDD (test driven development) and when relevant, CDD (contract driven development) I am also fully Claude and Codex CLI literate.

Hi! I’m Elena - I build automation systems, scraping pipelines, and backend services that work under real-world conditions, high load, anti-bot protection, and unstable data sources. Including high-load Telegram bot systems used for real-time data processing and distribution. With 3 years of experience in automation engineering, I don't just write scripts; I build stable, self-healing systems that handle thousands of requests and save hundreds of manual hours. 💡 Recent Track Record: • Built a phishing analysis engine for Microsoft Sentinel used in a production security workflow • Built a Telegram bot ecosystem serving 9,000+ users with stable performance under load • Developed scraping systems bypassing Cloudflare and anti-bot protections • Delivered 30+ automation projects: from simple bots to full backend systems with APIs and databases What I bring to your project: • I design systems that keep working when websites change or add protection • I reduce scraping costs and increase success rates under heavy traffic • I build automation that scales, not scripts that break after a week Core Stack: ✔️ Bots: Aiogram 3, Telethon, Pyrogram (High-load architecture) ✔️ Scraping: SeleniumBase (UC Mode), Playwright, Scrapy ✔️ Backend: FastAPI, Flask, MongoDB, PostgreSQL ✔️ Infra: Docker, Linux (VPS/Systemd), Git ✔️ Async Systems: asyncio, high-concurrency pipelines I focus on results: stable automation, higher success rates, and systems that don’t require constant fixing. Let’s turn your manual routine into a fully autonomous system.

🌟 Passionate about automation and innovative technologies, I specialize in creating high-performance, customized solutions. With strong expertise in Python development and workflow automation, I am dedicated to transforming technical challenges into efficient, real-world results that save time and boost productivity. 🧩 Key Skills: ✔️ Python Automation: Building smart automation systems to streamline recurring tasks and business workflows ✔️ Discord & Telegram Bot Development: Creating powerful interactive bots for automation, notifications, and user engagement ✔️ Web Scraping & Data Extraction: Extracting structured and unstructured data from websites, APIs, login-protected platforms, and complex dynamic pages ✔️ ETL & Data Processing: Cleaning, transforming, and organizing data for analytics, dashboards, and reporting pipelines ✔️ API Integration & Backend Scripts: Connecting tools and services using REST APIs and Python-based automation scripts ✔️ Database Handling: Efficient data storage and retrieval using MongoDB, Firebase, MySQL, and PostgreSQL ✔️ Web Development: Experience with React.js and Node.js for building modern and responsive interfaces when needed

I specialize in crafting cutting-edge, AI-powered solutions that redefine possibilities. With expertise in building scalable web applications, REST APIs, no-code tools, and AI solutions, I deliver work that drives success. My passion lies in leveraging Python, cloud platforms, and advanced AI technologies to solve complex challenges and exceed business goals. --- 🚀 How I Deliver Value Every project begins with a discovery phase to understand your business goals and technical challenges. I focus on clear communication, timely execution, and delivering scalable, AI-driven solutions that drive measurable results. --- Common Client Challenges & My Solutions: 1. Need AI-powered chatbots and automation? I develop RAG-based AI chatbots using LangChain, ChatGPT API, Pinecone, and ChromaDB to provide intelligent and context-aware interactions. 2. Struggling with slow and unscalable web applications? I build high-performance web applications using Python/Django, FastAPI, and ReactJS, ensuring seamless scalability and efficiency. 3. Finding it difficult to develop and manage SaaS platforms? I design and develop scalable SaaS solutions with Stripe integration, JWT authentication, and cloud hosting to ensure security and flexibility. 4. Need better data management and automation? I implement AI-powered automation, web scraping with Selenium and BeautifulSoup, and big data processing using PySpark and Databricks. 5. Looking to launch an MVP quickly? I use No-Code & Low-Code platforms like WeWeb, Xano, and Supabase to rapidly build and validate ideas with minimal development time. --- Technical Snapshot - Programming Languages: Python, JavaScript, PHP. - Frameworks: Flask, Django, FastAPI, Django Rest Framework, ReactJS, Angular, Next.js - AI Technologies: LangChain, LangGraph, LlamaIndex, ChatGPT, GPT-4, LLaMA, Mistral AI, NLP, CV, ML,OpenAI, CursorAI. - Databases: PostgreSQL, MySQL, MongoDB, Elasticsearch, Pinecone, ChromaDB, Xano, Supabase - DevOps & Cloud: AWS (Lambda, S3, Bebrock), Ubuntu, Docker, CI/CD, MinIO, DigitalOcean - CMS & E-Commerce: Magento, Shopify, BigCommerce, WordPress. - Collaboration Tools: Jitsi, BigBlueButton. ----- 💡 Ready to build scalable, AI-powered, and impactful solutions? Let’s innovate together! 📩 Contact me today to start your project.

Web scraping shouldn’t slow down your project. I build reliable systems that collect the data you need clean, structured, and ready to use. I’m a Python developer with 6+ years of experience, specializing in web scraping, automation, and data extraction systems. I help businesses, researchers, and AI teams collect large datasets from websites, directories, and online platforms. I have worked on many scraping projects both on and off Upwork, building scripts and crawlers that extract, clean, and structure data efficiently. What I Can Do For You 🔹 Build custom web scraping bots for any website 🔹 Extract large datasets for AI training, research, or analytics 🔹 Scrape dynamic JavaScript websites 🔹 Automate data collection workflows 🔹 Clean and structure scraped data into CSV, JSON, Excel, or databases 🔹 Maintain or fix existing scraping scripts 🔹 Build scheduled crawlers for continuous monitoring Typical Use Cases I Work On ✔ Lead generation & business directories ✔ Product and price monitoring ✔ Market research datasets ✔ AI training datasets ✔ News & content aggregation ✔ Research and academic data collection My Web Scraping Tech Stack 🐍 Python 🕷 Scrapy 🌐 Selenium 🍲 BeautifulSoup (bs4) ⚡ Requests / HTTPX Supporting tools & libraries: Pandas • NumPy • Streamlit • OpenCV • Matplotlib • Flask • SQLite I can deliver scraped data in CSV, Excel, JSON, API endpoints, or databases depending on your workflow. Selected Projects • Google Maps Banking Data Scraper & Lead Dataset (18K+ Records) • Amazon Review Scraper (1000+ Reviews, Anti-Bot & Login Handling) • Large-Scale Image Dataset Scraper from baidu (480K+ Images, 4800 Keywords) • Kalodata Product Scraper & Image Dataset (100+ Products Daily & Login Handling) • App Store Review Intelligence Scraper (40K+ Reviews) • Multiple web scraping and automation projects My Work Process 1️⃣ Requirement discussion 2️⃣ Research & feasibility check 3️⃣ Prototype or scraping test 4️⃣ Development of the scraper or automation system 5️⃣ Data validation and improvements 6️⃣ Final delivery with documentation Why Clients Work With Me ✔ 6+ years of Python development experience ✔ Reliable and maintainable scraping scripts ✔ Clean, structured, and usable data ✔ Strong communication and on-time delivery ✔ Always improving and learning new tools If you need data from the web quickly and reliably, I can help you build the right scraping solution. Let’s discuss your project.

I help businesses automate repetitive work by building reliable scraping systems, data pipelines, and workflow automation tools. Over the last 15+ years, I’ve worked on projects involving large-scale web scraping, Excel/VBA automation, API integrations, eCommerce product pipelines, reporting systems, and structured data processing. Most of my recent work focuses on: • Web scraping and browser automation • Data extraction from marketplaces, directories, and dynamic websites • Backend automation workflows • Scheduled scraping pipelines • Data cleaning, normalization, and deduplication • Excel, Google Sheets, and database integrations I’ve worked on systems involving: • Ticketmaster inventory/event pipelines • WooCommerce vendor-feed automation • Marketplace monitoring and pricing workflows • Product catalog processing • Public-record and structured dataset extraction • Large CSV/database processing systems Tools I commonly work with: Python, Playwright, Selenium, Requests, BeautifulSoup, VBA, APIs, PostgreSQL, MySQL, SQL Server, Google Sheets, Excel automation. I focus on building automation systems that are stable, maintainable, and actually useful long-term — not just quick scripts that break after a few weeks. I’m comfortable working on: • One-time extraction projects • Ongoing scraping/monitoring systems • Data cleanup and processing workflows • Backend automation support • Long-term maintenance projects If you need reliable automation and clean structured data, I’d be happy to discuss your project.

I help businesses automate processes, optimize workflows, and build powerful custom systems that save time and boost efficiency. With 5+ years of experience in Python development, I’ve delivered 50+ successful projects for clients worldwide — from startups to enterprise-level companies. What I Can Do for You: - CRM & ERP Systems – Design, development, and integration - Business Process Automation – Reduce manual work with intelligent scripts, bots, and API integrations - AI Solutions – Implement LLMs, chatbots, NLP, and computer vision into your workflows - API Development – Fast and secure REST/GraphQL APIs - Data Collection – Web scrapers, parsers, and data pipelines Tech Stack: Languages: Python Frameworks: FastAPI, Django, Flask Databases: PostgreSQL, MySQL Queues & Servers: Celery, Redis, Nginx Cloud: AWS, DigitalOcean AI/ML: NLP, CV, OpenAI, HuggingFace Why Clients Choose Me: Clear and proactive communication On-time delivery, no missed deadlines Business-oriented approach — not just coding, but solving problems Let’s build something great together! 📩 Message me to discuss your project today.

I don't build fragile prompt wrappers. I engineer production-grade AI platforms, deterministic agent loops, and high-performance full-stack SaaS architectures designed to survive real-world data loads. I am an AWS Certified Generative AI Developer – Professional and Senior Systems Architect with over 6 years of experience shipping enterprise-grade applications. If your existing AI pipeline is hallucinating, your API handoffs are failing, or you need a complex multi-agent system built securely from scratch, I step in to design the architecture and execute immediately. Core Specializations & Technical Outcomes: - Autonomous Multi-Agent Architectures: I design resilient, state-controlled agentic workflows using LangGraph, CrewAI, and rigid Pydantic validation gates. I specialize in building autonomous agents capable of multi-step business orchestration, secure tool-calling, and CRM routing. - Advanced Production RAG: I engineer secure Retrieval-Augmented Generation engines over dense unstructured enterprise data, relational databases, and vector infrastructure (Pinecone, pgvector, AWS OpenSearch) with strict privacy boundaries. - Voice AI & Omnichannel Automation: Production experience deploying real-time conversational voice agents (Retell AI, Vapi) natively paired with asynchronous webhooks across Meta WhatsApp API, Twilio, and n8n/Make automation tracks. - Cloud-Native Full-Stack Engineering: Building high-concurrency, zero-latency backends (Python FastAPI, Flask, Node.js) and clean, responsive interfaces (Next.js, TypeScript, Tailwind CSS) deployed inside isolated Docker containers on AWS. The Production Stack: - AI & Orchestration: Model Context Protocol (MCP), LangGraph, LangChain, LlamaIndex, Claude 3.5 Sonnet, GPT-4o, AWS Bedrock - Backend & Databases: Python (FastAPI, Django), Node.js, PostgreSQL, MySQL, Redis, Supabase - Vector & Cloud: Pinecone, pgvector, AWS OpenSearch, Docker, ECS, Lambda, S3 - Frontend: Next.js, React, TypeScript, Tailwind CSS Client Feedback: "Strong technical expertise, reliable, and delivers high-quality work on time." "Very professional and easy to work with. Delivered exactly as expected." I work as a strategic technical partner, not a blind task-taker. I will actively audit your technical requirements, flag potential architectural bottlenecks before they manifest, and deliver clean, modular code that your engineering team can easily manage long-term. Send over an invite, and let's hop on a 10-minute technical sync to map out your system architecture.

A working demo and a system that survives production are two very different things. I build the second kind. Over a decade of backend engineering and 70+ completed projects on Upwork. I run Datum Brain, a software and AI engineering company, so you get one senior engineer accountable end to end, with a team behind him when the work needs it. We ship Go microservices, data pipelines, and LLM systems for FinTech, SaaS, EdTech, and AdTech clients. Recent work: 🛡 Real-time ad fraud detection (TrueAudience) High-concurrency Go backend that scores ad traffic to catch bots before advertisers pay. 80M+ events, under 20ms decisions. Go, TimescaleDB, real-time pipelines. 🏦 Go microservices for an EMI and payments platform (Zolvat) Ledger logic, payment flows, and service orchestration for an installment payments platform. Go, microservices, PostgreSQL. 🎥 WebRTC proctoring infrastructure (Meazure / Examity) Real-time media and session orchestration for thousands of concurrent exam sessions at one of the largest US proctoring providers. Go, WebRTC, LiveKit, NATS. 📊 Big data pipeline optimization (Nike) Cut processing time and compute cost on large PySpark workloads. PySpark, AWS. 📄 Document intelligence platform (Centrum AI) OCR and RAG pipeline that turns unstructured documents into structured, queryable data with human review. Python, FastAPI, LangChain, RAG. What I work with: Backend: Go, Python, FastAPI, gRPC, REST, PostgreSQL, TimescaleDB, Redis, NATS, Kafka Data: PySpark, ETL pipelines, data quality frameworks, AWS, GCP Real-time: WebRTC, LiveKit, event streaming, high-concurrency systems AI and LLM: LangChain, LangGraph, RAG, multi-agent systems, OpenAI, Claude, evals Infra: Docker, Kubernetes, CI/CD, nginx How I work: I scope before I quote, so you know what you are getting and when. I flag risks early instead of at the deadline. Production-ready means tested, documented, monitored, and handed over properly. Good fit if you need something that runs in production and not a proof of concept, you want one senior engineer accountable end to end, and you value clear communication and honest scoping. Not a fit if you are shopping purely on hourly rate, or the spec changes daily and nobody owns decisions. If your backend needs to handle real load, or your data or AI work needs to go from demo to product, send me a message.

Hi! I’m a Full-Stack Web Developer with solid experience building scalable and efficient web applications using Python/Django, Node.js, and Next.js. With a strong foundation in backend development and hands-on expertise in front-end technologies, I can handle projects from idea to deployment. Before becoming a developer, I worked for 5 years as a product manager - this gives me a unique perspective on both business goals and technical execution. I understand how to turn ideas into fully functional and maintainable solutions, always focusing on quality, performance, and user experience. ✅ Core Technologies: • Python, Django, Django REST Framework • Node.js, Express.js, Nest.js • PostgreSQL, MongoDB, MySQL • Redis, Celery, Docker, Git • REST & GraphQL APIs • Stripe, Twilio, AWS, Firebase ✅ What I bring to your project: • Clean and maintainable code • Proactive communication and daily updates • Attention to detail and long-term scalability • Strong understanding of business processes If you’re looking for a developer who not only writes code but also thinks strategically — let’s talk!