Hire the Best Regular Expressions Developers
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UPWORK TOP RATED & EXPERT VETTED Experienced and versatile Python developer. Former IT Project Manager at IBM and GlaxoSmithKline. Specialist areas of interest include: * Web scraping and HTML parsing with Python, Selenium, SeleniumWire, Scrapy, BeautifulSoup, Requests, Niquests, LXML, Parsel etc. * AI Prompt Engineering, fine tuning, integration and and automation using LangChain, EmbedChain, Chainlit, Autogen and Semantic Kernel. * AI/Machine Learning using OpenAI, Coreweave, Huggingface, Forefront, Bing Chat, Copilot, Bard etc. * Vector databases including MongoDB vector, Chroma, Pinecone, Weaviate, and Facebook AI Similarity Search (FAISS). * Large Language Models (LLMs): LLaMa, GPT-3, GPT-3J, GPT3.5, and GPT-4 etc. * Rapid development of Web Apps using Bottle, Flask, Streamlit, Flutter/Flet, and Anvil.works. * Data Wrangling to and from HTML, Google Sheets/Docs, Excel, Word, PowerPoint, PDF, CSV, JSON, XML and more. * ETL (Extract, Transform, Load) tasks and pipeline processing including Apache Airflow, monads and function chaining. * NLP (Natural Language Processing) using NTLK, SpaCy, Fuzzy Search, and regular expressions (Regex). * IPython/Jupyter notebooks for data science hosted on Deepnote, Gradio, and Google Colaboratory. * Data analysis and visualisation mainly with Pandas, Bokeh, Matplotlib, Plotly, Google Maps, and Folium. * Writing and using APIs with batch processing and concurrency e.g. with Asyncio, Multiprocessing, Threading. * YouTube/Video automation, video editing/processing, subtitles, speech-to-text and text-to-speech. Three decades of experience finding creative solutions to business and IT problems. Author of several open sources projects including: Log2d, CleverDict, CleverText, and EasyPyPI... downloadable from Github and the Python Package Index. Now taking on small, short to medium term coding projects on a flexible/part-time basis.

My educational background is mathematics and finance. I hold a bachelors degree in mathematics and a masters degree in finance. As a freelancer I specialise in solving thorny technical real world problems. I can help you with any problems involving: Data processing and analysis Web scraping Mathematics Statistics Quant Finance Optimisation Linux system administration (including online cloud platforms) SQL database administration Scripting in VBA, python, bash, php and anything else that is similar Automation of repetitive administrative tasks (dovetails nicely with aforementioned tools) Any other technical problems in a variety of fields which don't neatly fit into this list Programming languages I use range from low to high level: Assembly C C++ Python Lua R VBA Bash PHP Google script Other tools at my disposal: Google Cloud Virtual machines Windows servers Linux servers I look forward to discussing your projects with you. Alex.

I am a experienced freelance software developer with over ten years experience providing web scraping and data extraction services using Python and Perl. I write custom code to crawl and extract different types of data from numerous sources including e.g. real-time data, websites requiring authentication, business listings, real-estate, and sports results websites. My expertise lies in automated web scraping of extremely hard to get data, websites with little or no structure and difficult to parse, large scale websites, websites using obfuscated protocols and authentication, including those using 'scraping protection' services e.g. glassdoor, distil, captcha, and sites that simply put - no-one else can scrape. I use a variety of methods of getting the data and aim to obtain the data as quickly, accurately and efficiently as possible. I work most effectively given well-defined specifications including website urls, keywords, search terms, preferred output format and update frequency. Data output usually is in CSV or SQL format and includes further post-processing of crawled data according to bespoke requirements. My source code is mainly written in Python and Perl, using version control Git and following agile and TDD software design techniques to ensure code cleanness, longevity, reliability and robustness. I also use other websites and tools such as Selenium, import.io and external libraries to further increase my productivity. I have experience in other languages Matlab, R, C++ for machine learning projects, in statistical analysis as well as databases SQL, MongoDB, and experience in Linux administration and many web API's including Dropbox, Twitter, Twilio (SMS) and Sendgrid (email). I also have completed and delivered a number of related projects using Python and Perl including fields such as deep learning, machine learning, multi-threaded applications, log file filtering, web app monitoring, notification systems and web apps. Please contact me if you have any available work. Thanks!

🥇Top 1% Data Engineer and Analytics Specialist 🎓 Master’s in Data Science | University of Coventry, UK 🎯 Trusted by clients like Microsoft and Windsor.ai, I help businesses build scalable data pipelines and analytics that empower smarter decisions. As a Senior Data Architect, I have 5+ years of experience in developing ETL pipelines, large-scale data engineering infrastructures, data mining, and warehousing projects. Further, I have managed and successfully deployed multiple data analytics projects, followed by expert MLOps services for maintaining the integrity and performance of various models in production. ✔️ ETL and Warehousing Services • I have developed and deployed complex data mining architectures involving hundreds of websites and millions of records, coupled with scraping solutions addressing JS, login/authentication, CAPTCHA, ReCAPTCHA, IP blacklisting, User-Agent Rotation, etc. • I'm highly skilled in Python, Scrapy, Beautiful Soup, Selenium, Splash, Regular expressions, XPath, JS, and AJAX. ✔️ Data Engineering Services • I have developed robust data pipelines, capable of continuous and extensible data processing. • I have implemented end-to-end solutions catering to diverse data sources, deployed on cloud/servers via cron jobs/automated services. ✔️ Data Science and Analytics Services • I offer expert data analysis for extracting key insights and complex correlations. Further, I can help identify key metrics for performance optimization across various niche. • I provide real-time BI services based on crafty yet simplistic visualizations across various platforms such as Google Data Studio, PowerBI, Tableau. • I have deployed multiple data science solutions in production based on complex statistical models and ingenious feature engineering, which provide insightful forecasting and predictive analytics. • I offer expert MLOps services for developing and optimizing in-production ML pipelines, impervious to data drift/leakage. I build optimal solutions for my valued clients across a diverse array of SMEs, following the best Software Engineering practices based on smart Requirement Analysis and industrious Quality Assurance. Keywords: Python, Google Data Studio, Google Analytics, Google Tag Manager, Tableau, MLflow, TensorFlow, R, Data Pipelines, ETL, Data Engineering, Data Extraction, Data Mining & Warehousing, Scrapy, Selenium, BeautifulSoup, Automation, Scrapers, NumPy, Pandas, NLP, Data Analytics, Forecasting.

I’m a Tech Lead with over 14 years of in-depth experience in vehicle tracking, fleet management, and IoT integrations. My core expertise lies in designing, building, and leading the delivery of robust, scalable solutions that support thousands of vehicles in real time. I’ve worked with a wide range of telematics and sensor hardware including Teltonika, Ruptela, Queclink, Jimi IoT devices, and BLE sensors for humidity, temperature, axle load, and movement detection. As the technical lead, I’ve successfully led a team of 5 developers, guiding architecture, development, and deployment efforts for custom vehicle tracking platforms that support 27,000+ vehicles. I ensure projects are delivered on time and meet real-world performance expectations for fleet operators. 🔧 Tech Stack & Experience Includes: Backend: .NET Core, EF Core, Web APIs Frontend: React, Angular, JavaScript, TypeScript, jQuery Messaging & Scalability: RabbitMQ, distributed processing Database: SQL Server with a focus on backups, indexing, and performance optimization Mobile Apps: Android development with Ionic and Xamarin IoT Integration: Deep experience interfacing with GPS tracking devices and BLE sensors I bring a strategic mindset and hands-on technical leadership to every project—balancing clean architecture with practical business needs. Whether you're looking to integrate IoT hardware, optimize fleet operations, or build a full-fledged SaaS tracking solution, I can lead your product to success.

✅ 6000+ Jobs completed ✅12+ Years ✅90% Repeat Rate ✅100% Completion Rate I'm experienced Python developer specializing in web scraping, data automation, and eCommerce integration. Over the past decade I’ve built and delivered robust pipelines and automation systems for retailers, marketplaces, and B2B data teams with a focus on real-time product price/stock synchronization, clean data exports, and production-ready integrations. What I do for clients (typical outcomes) 💡 Real-time price & stock sync: reduce manual updates and oversells by automating supplier-to-store feeds. 💡 Reliable scrapers and crawlers: resilient Playwright/Selenium/Requests scripts with proxy rotation, fingerprinting and captcha handling. 💡 Data pipelines & storage: clean, validated output (CSV/JSON), PostgreSQL/Supabase integration and monitoring dashboards. 💡 Competitor tracking & market intelligence: scheduled scraping + enrichment for pricing, availability and competitive analysis. 💡 Lead generation & enrichment: high-quality prospect lists with verification and enrichment for outreach campaigns. Deliverables you’ll get ⭐ Production-grade Python scraper(s) with logging and error handling ⭐ Scheduled deployment (cron / serverless) and proxy config ⭐ Data schema & cleaned dataset (CSV/JSON/Postgres) ⭐ Integration with your store (Shopify API / Admin upload) or your DB (Supabase/Postgres) ⭐ Documentation, runbook, and 14–30 days of support after delivery Industries I serve (most traction) 🔸 Retail & eCommerce (product catalogs, multivendor sync) 🔸 Industrial & Parts suppliers (Kramp, Granit, Trilanco type catalogs) 🔸 Marketplaces & classified platforms 🔸 Lead gen & B2B data enrichment projects Why clients hire me 🔸Deep technical experience: production scraping at scale with anti-bot strategies. 🔸Business-minded delivery: I focus on reliable automations that reduce operational costs. 🔸End-to-end service: from scraping to DB integration, scheduling, and monitoring. Keywords: Python, web scraping, playwright, selenium, requests, beautifulsoup, scrapy, shopify, woocommerce, magento, data extraction, data engineering, api integration, proxy rotation, captcha solving, data enrichment, ecommerce automation, price monitoring, inventory sync, supabase, postgresql, aws, serverless, cron jobs