🟢 100+ successful projects | Top Rated Plus | 10+ years of experience 🟢
I help businesses collect reliable data, automate workflows, integrate APIs, and build AI-powered systems that reduce manual work and turn messy processes into clean, scalable, production-ready solutions.
I’m Sergii, Senior Automation & AI Engineer at DataOx. For 10+ years, we’ve helped startups, small businesses, and growing teams build custom data extraction systems, workflow automation tools, API integrations, backend platforms, data pipelines, and practical AI automation solutions.
What I can help you with:
• Web scraping & data extraction
Custom scraping systems for websites, marketplaces, directories, eCommerce platforms, real estate platforms, job boards, online portals, social networks, and other public or structured data sources.
• Data processing & data pipelines
Cleaning, structuring, normalizing, transforming, and preparing data for reporting, analytics, dashboards, CRMs, databases, Google Sheets, Airtable, internal tools, or AI systems.
• Workflow automation & browser automation
Automation systems that replace repetitive manual work, connect tools, handle business logic, run scheduled processes, and reduce operational workload over time.
• API integration & backend systems
REST API integrations, third-party API connections, custom API development, backend logic, database workflows, admin panels, internal platforms, and scalable business systems.
• AI automation & AI-powered tools
AI agents, ChatGPT / OpenAI API integration, Claude, Gemini, AI-driven workflows, document processing, natural language interfaces, AI-generated reports, classification, extraction, and decision-making support systems.
• Existing system improvement
Bug fixing, refactoring, stabilization, performance improvements, error handling, documentation, feature enhancements, and long-term support for existing automation, scraping, backend, or AI systems.
Typical projects we build:
• Web scraping and data extraction platforms
• Price monitoring and competitor monitoring tools
• Lead generation and contact data collection systems
• Workflow automation and process automation tools
• API integrations between CRMs, databases, SaaS tools, and internal systems
• AI-powered assistants, AI agents, and business automation tools
• Document parsing, classification, and reporting systems
• Data pipelines, ETL processes, and structured datasets
• Dashboards, admin panels, and backend web applications
• Google Sheets, Airtable, Telegram bot, and email automation workflows
Why clients work with us:
• Strong experience with similar projects
• Clear understanding of technical requirements and business goals
• Reliable communication and structured project delivery
• Clean, maintainable, and scalable architecture
• Strong problem-solving approach
• Ability to handle changing requirements and real-world edge cases
• Production-ready solutions with error handling and clear documentation
• Long-term support after the first version is delivered
Tech stack and tools:
Python, Java, FastAPI, Django, Spring Boot, PostgreSQL, MySQL, MongoDB, REST APIs, Selenium, Playwright, Scrapy, BeautifulSoup, Pandas, ETL pipelines, cloud services, OpenAI API, ChatGPT, Claude, Gemini, Google Sheets API, Airtable API, CRM APIs, payment APIs, and custom backend systems.
I work best with clients who need more than just a quick script. If you need an experienced developer or technical partner who can understand the goal, clarify the scope, build a reliable solution, and support it over time, I can help.
Send me a message with your project details, data sources, tools, API requirements, or current workflow, and I’ll help you define the best technical approach.
Data Extraction
Python
API
API Integration
Automation
Artificial Intelligence
Web Development
Data Mining
Machine Learning
API Development
PostgreSQL
SQL
Web Crawling
Natural Language Processing
Bot Development
Java
Selenium
ETL Pipeline
Data Scraping
JavaScript
Vlada S.
Warsaw, Poland
$60/hr
4.4
15 jobs
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
Web Scraping
UX & UI
Web Design
Figma
Prototype Design
Web UI
Python
Flask
Data Scraping
Data Mining
Anton V.
Warsaw, Poland
$35/hr
5.0
12 jobs
Web scraping expert. End-to-end data solutions.
I develop bots, complex integrations, and automations to optimize time and resources.
My passion is to streamline work processes and enhance efficiency through innovative solutions, including the use of AI libraries.
Web Scraping
Python
Artificial Intelligence
Machine Learning
Data Scraping
Selenium
Node.js
Puppeteer
Data Science
JavaScript
Receipt Parsing
API
Automation Anywhere
Bot Development
Browser Automation
Przemysław J.
Krakow, Poland
$75/hr
4.9
112 jobs
⭐⭐ Top Freelancer with 5/5 rating ⭐⭐
Hello! I am an experienced Python developer ✅ and author of a proven quality web scraping tool. ✅ If you’re searching for fast, efficient and automatic web data extraction, I am here to support you.
---- HOW DO I WORK? ----
I deliver ready-to-use data for analysis. Over the years I’ve developed my own framework for web crawling. It’s based on requests library for fast and reliable connection establishment, as well as Beautiful soup module for flawless data extraction. I deliver the data in almost any format on request (JSON, Excel, XML, CSV, HTML, or YAML).
--- MY BIGGEST WEB SCRAPING PROJECTS ----
◼️ Web crawler scraping car details from over 30 websites like cars.com, edmunds.com, or ford.com. It’s been effectively scraping tens of millions of records daily for over a year.
◼️ Scraper of domain prices from ~90 domain-registrar websites. It scrapes over 50 000 records daily, generates CSV reports and sends it to my clients dropbox.
◼️ Extracting data from share-now and free2move Android applications. I was able to find API endpoints these apps use and based on that information, create a scraper that fetches car locations.
◼️ Scraping big business directories like yellowpages.com, whitepages.com.au or yelp.com.au.
◼️ Tools monitoring prices on the given webshops, and ETL tools for e-commerce.
◼️ One-time scraping for oddsportal.com for machine learning algorithm, which resulted in a huge database of almost 1 billion of event odds in total.
And more! I'm capable of scraping websites with captcha protection or websites with loads of javascript code.
---- HOW CAN I HELP YOU? ----
If you're in need of for webscraping services, scraping bots or big data for your e-commerce business or marketing analysis, I'm the right person to be approached. Feel free to contact me and share the details of your project - I will be happy to help you.
Best regards,
Przemek
Web Scraping
Web Scraping Framework
Data Entry
Data Scraping
Python
Data Mining
Machine Learning
PHP
Web Crawling
Michal P.
Jaworzno, Poland
$10/hr
5.0
2 jobs
Hey! I'm Michal, a developer who's actively building my skills and looking for my first freelance opportunities.
I work with Python, JavaScript/TypeScript, and SQL — I'm not an expert, but I'm capable, I pick things up quickly, and I put a lot of care into the work I do.
I'm looking for smaller projects where I can be genuinely useful, deliver something clean, and build a track record. I'd rather take on something I can do well than promise things I can't deliver.
If you have a smaller task or project and need someone reliable who'll communicate honestly and work hard — I'd love to hear from you.
Web Scraping
Python
JavaScript
TypeScript
SQL
Node.js
Data Analysis
PostgreSQL
HTML
CSS
Data Entry
Data Scraping
Microsoft Excel
Microsoft Word
Kanstantsin K.
Warsaw, Poland
$45/hr
5.0
50 jobs
I am a Senior Full-Stack .NET Developer with 10+ years of experience building scalable SaaS platforms, enterprise applications, cloud-native backends, and AI-powered solutions.
I specialize in modern Microsoft technologies including .NET 10, .NET 9, ASP.NET Core, Minimal APIs, Clean Architecture, CQRS, SignalR, Hangfire, OpenTelemetry, and distributed backend systems using MassTransit.
I help startups and enterprise clients build high-performance applications from architecture and backend APIs to modern front-end interfaces and cloud deployment pipelines.
Core Expertise
Backend & Cloud Development
- .NET 10 / .NET 9 / ASP.NET Core
- REST APIs & Minimal APIs
- Clean Architecture & CQRS
- SignalR real-time applications
- Background processing with Hangfire
- Distributed systems & event-driven architecture
- OpenTelemetry observability
- MassTransit messaging
- Authentication & authorization systems
- Multi-tenant SaaS architecture
Front-End Development
- React
- Angular (2+ through latest versions)
- TypeScript
- Material UI
- Responsive web applications
Cloud & DevOps
- Azure
- Docker
- Azure DevOps
- GitHub Actions
- Nginx
- CI/CD pipeline automation
Databases & Infrastructure
- PostgreSQL
- Redis
- Elasticsearch
- CosmosDB
- SQL Server
AI & Automation
- AI Agents
- AI workflow automation
- Semantic Kernel
- AI-assisted business applications
- Process automation solutions
Integrations
I have extensive experience integrating third-party APIs and business platforms including:
- Stripe
- Twilio
- Google APIs
- Cloudflare
- Slack
- Facebook APIs
- CallTrackingMetrics
- Yelp
- Yext
Additional Expertise
- SaaS platforms
- CRM/ERP systems
- Ecommerce applications
- Healthcare platforms
Browser automation
- CAPTCHA solving
- Advanced web scraping and data extraction systems
I can work on both long-term product development and short-term high-priority projects. I focus on clean architecture, maintainable code, performance, and fast communication throughout the development process.
If you need a senior engineer who can quickly understand business requirements and deliver production-ready solutions, feel free to contact me.
Microsoft SQL Server
ASP.NET MVC
C#
Angular
Knockout.js
JavaScript
AngularJS
jQuery
Microsoft SQL Server Programming
nopCommerce
.NET Core
ASP.NET Core
React
API Development
Full-Stack Development
AI Agent Development
SignalR
Microsoft Azure
Docker
PostgreSQL
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