Hire the Best Python Numpy Developers
in Ukraine

More than 3,000 reviews on G2
Rating is 4.5 out of 5.
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Fedir O.

Kyiv, Ukraine

$27/hr
5.0
7 jobs

Need a web scraping expert who can also build the backend around your data? I have 5 years of experience solving difficult extraction tasks, browser automation (Selenium, Playwright), session/cookies. I’ve built scrapers and data pipelines for different websites, where scraping is allowed. I always keep terms of service and do ethical scraping. I can deliver results in CSV, Excel, Google Sheets, send to your API, or ship the scraper itself. Just write me! Recent projects: • Scraped 200k car listings for an ML price prediction model using multiprocessing. • Built a content-harvesting backend (pipelines + Google Drive/Sheets) used in production. • Led a Django project that scrapes 100k+ content items (videos, articles, etc.) per week. • Developed an internal Python library for PostgreSQL via asynchronous SQLAlchemy. • Reviewed and fixed a client’s FastAPI project to improve reliability and speed. • Built automation tools for various websites. • Scraped transcripts for YouTube via an official YouTube API. Tech stack: • Python 3.12+, SQL; asyncio and multiprocessing for fast crawling • Scraping: Beautiful Soup, Scrapy, aiohttp, requests; Selenium, Playwright; HTML, CSS, XPath, JSON, • Backend: FastAPI, Django; JWT, OAuth2; PostgreSQL, SQLAlchemy (sync/async), SQLite, Alembic; Redis • Data & automation: Pandas, NumPy; Google Sheets/Drive; Telegram API (Telethon, python-telegram-bot); OpenAI GPT API • Dev & ops: Docker, CI/CD, GitLab, GitHub; pytest If you need parsing, scraping, crawling, data extraction, data mining, or an automation script, just send 1-2 target URLs and a sample of the desired output columns. I’ll propose the best approach, the anti-bot plan, and a quick prototype. I always keep the terms of service. I also handle data cleaning and enrichment with Pandas, plus ETL pipelines, so you get ready to use datasets. As a Python developer who cares about code quality, I write clean, readable code that follows PEP8 and OOP principles, and I cover key parts with tests for long-term stability. Send me a brief description and technical requirements of your project, and I’ll solve your problem!

  • Python
  • API
  • Redis
  • PostgreSQL
  • Web Scraping
  • Data Scraping
  • Database
  • ETL
  • AI Development
  • Microsoft Excel
  • Data Analysis
  • Artificial Intelligence
  • SQLAlchemy
  • FastAPI
  • OpenAI API
Vladyslav V.

Kharkiv, Ukraine

$35/hr
5.0
73 jobs

I’m a Senior Python Engineer and Full Stack Developer with 8+ years of experience building web scraping infrastructure, automation platforms, backend systems, and scalable data engineering solutions for startups, SaaS products, trading companies, and data-driven businesses. Clients usually contact me for projects related to Python development, Full Stack development, backend development, backend APIs, web scraping, data extraction, browser automation, Playwright automation, Selenium automation, Scrapy development, ETL pipelines, workflow automation, automation systems, API integrations, real-time data processing, AI automation, OpenAI integrations, scalable backend systems, sportsbook software, betting systems, odds aggregation, analytics platforms, SaaS products, and high-load real-time data systems. Why clients work with me ✔ 8+ years of Python engineering experience ✔ 6+ years of Full-Stack engineering experience ✔ $400K+ earned on Upwork ✔ Top Rated Plus freelancer ✔ Production-grade scalable architectures ✔ Strong communication and reliable delivery ✔ Experience with high-load real-time systems ✔ Long-term technical partnership mindset My main stack includes: Python • FastAPI • Django • Flask • AsyncIO • REST APIs • GraphQL • Playwright • Selenium • Scrapy • WebSockets • Microservices • Celery • SQLAlchemy • Backend Architecture - Web Scraping & Data Engineering Playwright • Selenium • Scrapy • BeautifulSoup • Requests • Browser Automation • Data Extraction • Web Scraping • Data Mining • ETL Pipelines • Proxy Management • Pandas • NumPy • Dask • Scikit-learn • TensorFlow • PyTorch • XGBoost • OpenCV - Advanced Scraping Infrastructure Cloudflare • DataDome • Akamai Bot Manager • PerimeterX • reCAPTCHA • hCaptcha • Residential & Mobile Proxies • Session Management • Authentication Workflows • Browser Fingerprinting - Full Stack Development React • Next.js • TypeScript • JavaScript • HTML5 • CSS3 • Tailwind CSS • Admin Dashboards • SaaS Applications • Analytics Dashboards - Cloud, DevOps & Infrastructure Docker • Kubernetes • AWS • Google Cloud • Azure • GitHub Actions • GitLab CI/CD • Terraform • Ansible • Nginx • Linux AI & LLM Development OpenAI API • GPT-4 • Claude • Llama • AI Agents • RAG • Prompt Engineering • AI Automation • LLM Integrations • As a Full Stack Developer and backend developer, I build backend systems, APIs, automation platforms, web applications, analytics dashboards, browser automation workflows, admin panels, and scalable real-time data products designed for production environments. Web Scraping & Automation As a Python developer specializing in web scraping and automation systems, I build scalable scraping infrastructure for dynamic websites, protected platforms, APIs, marketplaces, SaaS products, and analytics systems. Scraping and automation projects include: • Large-scale web scraping systems • Data extraction pipelines • Browser automation with Playwright and Selenium • Scrapy-based scraping infrastructure • API reverse engineering and API integrations • Proxy management and anti-bot workflows • Marketplace and e-commerce data collection Backend Development & Automation Systems As a Full Stack Developer and backend developer, I also build scalable backend systems, backend APIs, automation infrastructure, workflow automation platforms, web applications, and real-time backend services. Typical backend and automation projects include: • Backend API development • Workflow automation systems • Real-time automation platforms • Monitoring and reporting systems • Data synchronization systems • Web applications and admin dashboards • Cloud-based backend infrastructure Clients hire me as a Python developer and Full Stack Developer when they need scalable backend systems, automation workflows, real-time data processing, or production-grade infrastructure that can support long-term product growth. Sportsbook & Betting Systems I have strong hands-on experience building sportsbook software, betting systems, odds aggregation platforms, sportsbook data systems, and real-time betting infrastructure running in production environments. • Real-time sportsbook odds aggregation systems • Arbitrage and positive EV analytics platforms • Betting automation and execution systems • Historical odds databases and backtesting engines • Sports analytics dashboards and reporting systems • Odds monitoring and alerting systems AI Automation & Data Infrastructure • AI data collection pipelines • OpenAI API integrations • AI automation workflows • RAG and knowledge base infrastructure • AI enrichment and structured data processing If you need a Python developer, Full Stack Developer, backend developer, or automation developer who can build scalable backend systems, automation infrastructure, web applications, sportsbook systems, or real-time data products, feel free to reach out.

  • Python
  • Web Scraping
  • Data Extraction
  • Automation
  • API Integration
  • API Development
  • Data Mining
  • Web Crawling
  • Scrapy
  • FastAPI
  • REST API
  • Database Development
  • Selenium
  • Browser Automation
  • ETL
  • Docker
  • AI Agent Development
  • Data Engineering
  • Back-End Development
  • Full-Stack Development
Nataliia M.

Kyiv, Ukraine

$45/hr
4.8
130 jobs

🎓 With 100+ completed projects and over 3,000 hours of successful work delivered, I bring dedication, consistency, and proven results to every collaboration. I combine technical expertise with a results-driven mindset. As a seasoned Python Developer with a Master’s in Computer Science and 10+ years of experience, I also work as a Python developer to help businesses transform raw data into actionable insights that drive smarter decisions and measurable success. By specializing in data mining, web scraping, OCR, and machine learning solutions, I deliver tailored, efficient systems that streamline data processes and empower you to achieve your goals faster. 💼 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗢𝗳𝗳𝗲𝗿: • Data Mining & Web Scraping: Expertise in scraping data from dynamic websites, PDFs, images, and captcha solving, with delivery in formats like CSV, JSON, XML, or SQL DB. • Machine Learning | AI | Data Science: Proficient in building predictive models and data analysis using libraries like Pandas, Scikit-learn, TensorFlow, and PyTorch. • OCR & Image Processing: Skilled in extracting text from images and solving captchas using Tesseract OCR, EasyOCR, and Google Cloud Vision. Over the years, as a Python developer, I've developed many cross-platform scraping tools for popular websites like Amazon, Booking, eBay, Craigslist, and other social networks and e-commerce sites. I'm well-versed in handling complex and well-protected sites using techniques such as user-agent changing, IP-rotation, headless browsers, captcha solving engines, and custom captcha solving solutions. In addition to my data mining and extraction skills, as a Python developer, I'm also proficient in data analysis and machine learning. I can help you build predictive models that will enable you to make informed decisions based on your data. I have worked on various projects that required analyzing large datasets and presenting insights in a clear and concise manner. Furthermore, as a Python developer, I pride myself on being a problem solver and a team player. I enjoy collaborating with clients to understand their needs and providing tailored solutions that meet their requirements. As a Python developer, my algorithm for providing these services is as easy as ETL (Extract, Transform, Load), which makes it simple for you to get the data you need. I'm excited to collaborate with you and deliver high-quality results. Let's work together soon! 💻 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗧𝗼𝗼𝗹𝘀: ✓ Web Scraping, Data Mining, Web Crawling, Email Scraping (Python + Beautiful Soup, Scrapy, lxml / HTTPX, aiohttp / asyncio, Selenium Webdriver / Playwright , PhantomJS, and other Frameworks, Scraping Hub, Crawlera, Google Cloud/DigitalOcean/Azure or AWS deployment) ✓ Data Analysis and Visualisation (NumPy, SciPy, Pandas, scikit-learn, Matplotlib / Seaborn, Jupyter Notebook, Tensorflow) ✓ AI, Prompt Engineering & Model Optimization (ChatGPT, OpenAI API, LLama) ✓ Image Processing & OCR (OpenCV, Tesseract OCR, EasyOCR, TrOCR, PIL, Image Magick, Google Cloud Vision) ✓ Image/Text/CAPTCHA Recognition (Tesseract OCR, Antigate API, reCaptcha, DeathByCaptcha) ✓ PDF Mining (QPDF, XPDF, PyPDF, pdfminer, pdfplumber, PyMuPDF, Tabula) ✓ Desktop Applications Development (PyQT, wxPython) ✓ Database Systems (SQL, MS SQL Server (T-SQL), PostgreSQL, MongoDB, MySQL, MS Access, SQLite, Firebird) ✓ API Integration (Rest API, Twitter API, Facebook API, Instagram API, Google API, Youtube API, Bing API, eBay API) 📝 𝗥𝗲𝘃𝗶𝗲𝘄𝘀: ✓ "Top notch developer!" ✓ "Excellent work is done by Nataliia. She exceeded my expectations!" ✓ "Extremely thorough and quick!" ✓ "She does excellent work on long tasks, and is highly recommended." Does that suit you? 🕙 If you’re looking for a reliable Python developer, feel free to contact me anytime, and let's discuss the details of your task during the interview. I'll be glad to help you to reach your goals!

  • Python
  • Data Scraping
  • Data Mining
  • Selenium
  • SQL
  • Machine Learning
  • Data Science
  • ETL
  • Deep Learning
  • Web Crawling
  • Automation
  • Computer Vision
  • TensorFlow
  • JavaScript
  • AI App Development
  • Artificial Intelligence
  • ChatGPT
  • AI Data Analytics
  • Data Analytics
  • AI Development
Stas H.

Kyiv, Ukraine

$25/hr
4.7
27 jobs

Hi! I’m a Fullstack Developer with 6+ years of experience building web applications, APIs, integrations, and scalable backend systems. I work with both backend and frontend development, helping startups and businesses quickly build MVPs, improve existing products, fix production issues, and launch new features. Main stack: • Python, Django, Django REST Framework, FastAPI • React, Next.js, JavaScript, TypeScript • PostgreSQL, Redis • Docker, CI/CD, Linux, Nginx • REST APIs, Webhooks, Third-party integrations • AI-assisted development workflows What I can help with: • Fullstack web application development • Backend APIs and frontend integrations • React/Next.js dashboards and admin panels • Payment systems and crypto integrations • Bug fixing and performance optimization • Docker deployments and server setup • MVP development for startups • Refactoring and improving existing codebases I have experience working with: • Crypto & payment platforms • Web3 integrations • Telegram bots • Admin dashboards • SaaS products • Automation systems How I work: • Fast communication • Clear updates • Reliable delivery • Focus on practical business results If you need a developer who can quickly understand your project and help move it forward — feel free to reach out.

  • Python
  • NumPy
  • Django
  • Flask
  • Docker
  • Web Development
  • RESTful API
  • Data Scraping
  • Data Science
  • Selenium
  • Celery
  • Browser Automation
  • Web Scraping
  • Data Mining
Mykyta K.

Kiev, Ukraine

$50/hr
4.9
201 jobs

I build high-performance data extraction systems, web scraping infrastructure, and automation pipelines that transform raw data into structured, reliable datasets ready for reporting, analytics, and business decisions. My focus is on delivering production-grade data systems - not just scripts, but scalable solutions that run on a daily basis, handle edge cases, and integrate seamlessly into your workflows. I work with startups, agencies, and data-driven businesses that need reliable data collection, automation, and structured outputs at scale. 🔹 Data Extraction & Web Scraping I develop robust web scraping systems capable of handling complex, large-scale data extraction tasks: • Web scraping from dynamic websites (JavaScript, pagination, auth) • Data extraction from directories, marketplaces, SaaS platforms • Scraping at scale with anti-bot handling & optimization • Structured data parsing and normalization • Long-running scraping infrastructure My solutions are built to be stable, maintainable, and scalable, even with frequently changing websites. 🔹 API Integration & Data Automation I build API-driven automation workflows that connect multiple systems into one clean data flow: • REST API integration (JSON / XML) • API automation and data synchronization • Multi-source data aggregation • Scheduled data collection pipelines • Error handling, retries, logging 🔹 Data Pipelines & ETL Systems I design complete ETL pipelines (Extract → Transform → Load): • Data cleaning and transformation • Merging multiple data sources • Structuring datasets for analytics • Automated pipelines (daily / hourly execution) • Scalable data processing workflows 🔹 Automation Systems & Bots I build custom automation systems and bots that eliminate manual work: • Data collection and monitoring bots 🤖 • Web automation & browser bots • API-driven automation workflows • Reporting automation pipelines • Task scheduling and orchestration 🔹 Data Delivery & Outputs Your data - clean, structured, and ready to use: • Google Sheets automation 📊 • CSV / Excel exports • Databases (PostgreSQL, MySQL, SQLite) • Custom API endpoints • Reporting-ready datasets 🔹 AI & LLM Integration I integrate language models into automation workflows - not chatbots, but production pipelines that use LLMs for real work: • OpenAI API integration into data pipelines • RAG systems for document retrieval and Q&A over your own data • LLM-based classification, extraction, and enrichment • Intelligent processing layered on top of scraping/ETL 🔹 Working with US & EU clients - flexible data hosting I work with clients worldwide. For European clients who need it, we can host data within the EU 🇪🇺(Germany) and handle it in line with GDPR. 🛠 Core Technologies Python Scrapy, Selenium, Playwright, BeautifulSoup Pandas, NumPy REST APIs, JSON, XML PostgreSQL, MySQL, SQLite Automation & scheduling systems Git / GitHub 💡 How I Work I don’t just write code - I help design reliable data systems. Clients involve me in: • Architecture decisions • Data pipeline design • Automation strategy • Long-term scalability planning ✅ What You Get ✔️ Clean, structured dataset ready for reporting ✔️ Stable, automated pipeline (daily execution) ✔️ Scalable and maintainable system ✔️ Clear documentation & version-controlled code ✔️ Optional monitoring, logging & alerts ✅ Results in numbers: - 132 finished projects - 100% JSS - Top Rated Plus - Working on Upwork 6+ years - 50% of long-term clients - 20+ years in IT industry 🔑 Keywords (Upwork SEO) Web Scraping, Data Extraction, Python Developer, Data Mining, Automation, API Integration, API Automation, ETL, Data Pipeline, Data Engineering, Scrapy, Selenium, Playwright, BeautifulSoup, Data Processing, Data Cleaning, Google Sheets API, CSV Automation, Database Integration, Web Automation, Bots, Data Collection 💬 If you need reliable data pipelines or web scraping systems - let’s talk.

  • Python
  • Python Script
  • Data Extraction
  • Automation
  • API Integration
  • Data Mining
  • Web Crawling
  • Scrapy
  • Selenium
  • Web Scraping
  • Bot Development
  • API Development
  • REST API
  • Database Development
  • FastAPI
  • Natural Language Processing
Artem S.

Lviv, Ukraine

$40/hr
5.0
9 jobs

I build AI-powered systems that automate workflows, improve decision-making, and turn data into business value. Python Developer and AI Engineer with 8+ years of experience building LLM applications, automation systems, and data-driven tools. I specialize in chatbots, RAG pipelines, and AI features that integrate directly into existing products and workflows — helping startups and businesses cut manual work and ship AI faster. Verified review from my recent cleint: "Artem was a pleasure to work with. He approached the project with professionalism, delivered high-quality results, and maintained clear and prompt communication. His technical expertise and reliability exceeded expectations. Highly recommended to anyone looking for a skilled and dependable freelancer." CORE EXPERTISE Python Development Clean, scalable codebases (Flask, FastAPI, Django). Custom REST & GraphQL APIs. Automation scripts and bots (data scraping, ETL, process automation). Integrations with Stripe, Twilio, OpenAI, Google APIs. Async systems for real-time data and chat processing. AI & Machine Learning ChatGPT/OpenAI/LangChain integrations for assistants and content generation. NLP for sentiment analysis, summarization, and keyword extraction. Recommendation engines, classification models, predictive analytics. Custom workflows with TensorFlow, PyTorch, scikit-learn. LLM fine-tuning for domain-specific tasks. Data Science & Automation Web scraping with BeautifulSoup, Selenium, Playwright. Data cleaning, transformation, and visualization with Pandas, NumPy, Matplotlib, Plotly. Business dashboards and analytics pipelines. Process automation with Zapier, Airtable, Notion API, Google Sheets API. TECH STACK Languages: Python, JavaScript, TypeScript, SQL, Bash. Frameworks: Flask, FastAPI, Django, Node.js, Next.js. AI/ML: OpenAI API, LangChain, TensorFlow, PyTorch, Hugging Face. Databases: PostgreSQL, MongoDB, Redis, SQLite. Cloud & DevOps: AWS, Google Cloud, Docker, DigitalOcean, Vercel. Automation: Selenium, BeautifulSoup, Zapier, Pandas, Streamlit, Power BI. AI-POWERED SOLUTIONS I BUILD • ChatGPT-based customer support bots integrated into web apps • Data dashboards powered by live analytics • Custom content generation systems for blogs, eCommerce, and SaaS • AI recommendation systems for products, content, or learning platforms • Automation connecting CRMs, Google Sheets, or social media • AI search & knowledge bases using embeddings and vector databases • Conversational interfaces powered by NLP and custom-trained models I handle architecture, backend, AI integration, and deployment end-to-end — a fully working system, not just code snippets — with clear updates throughout. Message me with what you're building and I'll tell you straight whether it's a good fit. Python Developer | AI Developer | Machine Learning Engineer | ChatGPT Developer | OpenAI Integration | LangChain Developer | NLP Engineer | Flask Developer | Django Developer | FastAPI Developer | Data Science | Web Scraping | Process Automation | AI Chatbot | API Integration Updated July 12 2026

  • Python
  • Web Application
  • HTML
  • HTML5
  • Node.js
  • Website Redesign
  • React Bootstrap
  • React
  • ChatGPT
  • OpenAI Codex
  • Shopify
  • CSS Framework
  • NodeJS Framework
  • Shopify Plus
  • Shopify Apps

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