Hire the Best Regular Expressions Developers in Lahore, PK

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Inzamam F.

Lahore, Pakistan

$22/hr
5.0
40 jobs

I build custom web scraping systems, data extraction pipelines, and ETL workflows in Python. Messy, scattered, or hard-to-reach data goes in. Clean, structured, ready-to-use datasets come out. 6+ years doing this for teams like PepsiCo, GP, and Storfund, moving them off manual data pulls and onto pipelines that run on their own. WHAT I BUILD → Custom scrapers for dynamic and JavaScript-heavy sites: logins, pagination, infinite scroll, AJAX, anti-bot protections. Built with Scrapy, Selenium, Playwright, and Puppeteer. → Large-scale crawlers for e-commerce, real estate, marketplaces, directories, and financial data, with proxy rotation and CAPTCHA handling (Bright Data, Smartproxy, Oxylabs, 2Captcha) → Data extraction from PDFs, Excel, APIs, JSON, XML, and databases, cleaned, deduplicated, validated, and normalized into a format your team can actually use → ETL pipelines that extract, transform, and load data into your warehouse on a schedule, using Airflow, AWS Glue, and custom Python jobs. Built with error handling and monitoring, not scripts that quietly break. → Python automation replacing manual, repetitive data work: data entry, reporting, cross-system syncing Data lands in PostgreSQL, MySQL, MongoDB, BigQuery, or Snowflake, however your stack is set up. HOW I WORK Most scraping jobs fail for one of two reasons: the site changes and the script breaks silently, or the data comes back messy, and someone has to clean it by hand anyway. I build for both. Resilient selectors, monitoring and alerts, and validation baked into the pipeline, so what lands in your database is usable the day it arrives, not the day after someone fixes it. I also do lead generation and enrichment work (Clay, Apollo, Lusha, SalesQL, BuiltWith, LinkedIn Sales Navigator) and lightweight data analysis and dashboards in Python, Pandas, Power BI, and Looker Studio, when that's part of the same pipeline. TOOLS Python, Scrapy, BeautifulSoup, Selenium, Playwright, Requests/HTTPX, XPath, Pandas, NumPy, SQL, PostgreSQL, MySQL, MongoDB, BigQuery, Snowflake, Apache Airflow, AWS Lambda, S3, Glue, Docker, Git, REST/GraphQL APIs, n8n, Octoparse If you've got a data source that's messy, blocked, or breaking your current scraper, tell me what it is and I'll tell you how I'd approach it.

  • Web Scraping
  • Data Engineering
  • Data Extraction
  • Data Processing
  • Data Cleaning
  • Lead Generation
  • Scrapy
  • Selenium
  • Beautiful Soup
  • API Integration
  • ETL Pipeline
  • Data Mining
  • Python
  • Web Crawling
  • SQL
  • PostgreSQL
  • Big Data
  • Data Scraping
  • Automation
  • Data Migration
Shehroz A.

Lahore, Pakistan

$7/hr
5.0
21 jobs

I'm an AI and full-stack developer specializing in AI-powered mobile apps and web platforms and RAG Applications. Over the last 7+ years, I've shipped production React Native apps and Next.js SaaS products with GPT-4, Whisper, and OpenAI API integrations, including AI MVPs with real-time audio processing, Supabase backends, and Stripe subscription billing. If you're a founder building an AI product, SaaS platform, or startup MVP, you've probably discovered the expensive gap between separate web and mobile teams. I eliminate that friction: one developer, one unified codebase strategy, both platforms, web and mobile, built end-to-end. You get faster development cycles, perfect consistency across platforms, and a single point of accountability. Recent AI & full stack work includes: - An AI-powered MVP integrating GPT + Whisper for audio processing, with Supabase auth/database and Stripe subscription billing - A ChatGPT-style conversational chat experience in React (streaming responses, polished UX) - An AI-integrated React Native mobile app for iOS and Android - A cross-platform social media app with wallet integration (5-star, "committed to quality" client endorsement) - Multi-tenant SaaS platforms with role-based access control and Stripe Connect payouts Real-time GPS tracking mobile apps and AI-powered internal operations dashboards What I can build for you: - AI-Powered Apps: chatbots, AI agents, LLM integrations (OpenAI, Claude), voice/audio AI, RAG pipelines - End-to-End Startup MVPs (web + mobile from a single architecture) - High-Performance React Native Apps (iOS & Android, 60fps native feel) - Multi-Tenant SaaS Platforms with subscriptions and billing - Real-Time & Offline-First Applications - Marketplaces & Booking Systems My engineering standards: - Premium UI/UX: clean, minimalist, high-contrast interfaces inspired by Linear and Stripe - Uncompromising performance: hardware-accelerated animations, native-feeling mobile experiences - Resilient architecture: local-first and offline-first patterns so your app stays stable on any network Core stack: Frontend: Next.js, React, TypeScript, Tailwind CSS Mobile: React Native, Expo Backend & DB: Node.js, NestJS, Supabase, PostgreSQL, MongoDB AI & Integrations: OpenAI API (GPT-4, Whisper), Claude API, Stripe & Stripe Connect, Web3 Authentication RAG, LangChain, Knowledge Graph. Clients keep working with me because I focus on business outcomes, scalable architecture, and long-term product success, not just closing tickets. You won't get missed deadlines or unmaintainable code; you'll get a dedicated technical partner who treats your product like his own. Reach out to me with your product vision. I'll reply with a concrete technical plan for how we launch it.

  • AI App Development
  • AI Chatbot
  • ChatGPT API Integration
  • Mobile App Development
  • Full-Stack Development
  • Web Application
  • Supabase
  • TypeScript
  • SaaS Development
  • API Integration
  • iOS Development
  • Node.js
  • JavaScript
  • Python
  • Artificial Intelligence
  • Machine Learning
  • LangChain
  • Retrieval Augmented Generation
  • Knowledge Graph
Umair A.

Lahore, Pakistan

$20/hr
5.0
12 jobs

I am a Full Stack Engineer. I have experience in building applications and web platforms equipped with essential AI features. 𝗪𝗵𝗮𝘁 𝗜 𝗪𝗶𝗹𝗹 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗕𝘂𝗶𝗹𝗱: - Cross-platform mobile applications with React Native and Expo - Web applications with React and Next.js - Scalable backend APIs using Node.js and Express - Artificial Intelligence-powered applications using OpenAI and Gemini API - Secure user systems with authentication and role-based access control - Payment gateway integrations like Stripe and PayPal - Real-time chat and notification features - Admin dashboards and business management systems 𝗥𝗲𝗰𝗲𝗻𝘁 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀: 𝟭. 𝗧𝗼𝘂𝗿𝗶𝘀𝗺 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻: I developed a tourism app that can track locations in time. It also has a content management system and an admin dashboard. 𝟮. 𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺: I built an education platform where users can create Artificial Intelligence chatbots. They can also interact with Artificial Intelligence avatar teachers. 𝟯. 𝗥𝗲𝗰𝗶𝗽𝗲 𝗥𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱𝗮𝘁𝗶𝗼𝗻 𝗔𝗽𝗽: I created a React application that recommends recipes. It also has authentication and cloud-based data management. 𝟰. 𝗦𝘁𝗿𝗲𝗮𝗺𝗶𝗻𝗴 𝗪𝗲𝗯𝘀𝗶𝘁𝗲 𝗜𝗻𝘁𝗲𝗿𝗳𝗮𝗰𝗲: I developed a streaming platform using React and Tailwind CSS. It has light and dark mode support and optimized performance. 𝟱. 𝗙𝗮𝗰𝗲 𝗗𝗲𝘁𝗲𝗰𝘁𝗶𝗼𝗻 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽: I built a React app that can detect faces in real time. It uses the camera and Artificial Intelligence-based processing. 6.𝗖𝗮𝗿𝗲𝗲𝗿 𝗮𝗻𝗱 𝗥𝗲𝗰𝗿𝘂𝗶𝘁𝗺𝗲𝗻𝘁 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺: I developed a job platform, with Artificial Intelligence-powered interviews. It also has automated interview report generation and payment integration. 𝗔𝗿𝗲𝗮𝘀 𝗼𝗳 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: - Cross-Platform App Development: Flutter (Dart), React Native - Frontend Development: React JS, Next JS, Angular, HTML5, CSS3 - Backend Development: Node JS, Nest JS, Laravel, PHP, Express - API Development & Integrations: REST APIs, AWS Lambda, API Gateway - Databases & Cloud Storage: MySQL, MongoDB, Firebase, DynamoDB - Real-Time App Features: Socket IO, Firebase Real Time Database, Twilio - Payment Gateway Integration: Stripe, Razorpay, PayPal, Braintree - Maps & Location Services: Google Maps, Apple Map Kit, GPS Tracking - Version Control & Collaboration: GitHub, Bitbucket, GitLab 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? 𝗘𝗻𝗱-𝘁𝗼-𝗘𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: I take care of database design and backend architecture and frontend development and deployment. 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀: I make applications that're easy to maintain and ready to grow with your business. 𝗣𝗿𝗼𝗯𝗹𝗲𝗺-𝗦𝗼𝗹𝘃𝗶𝗻𝗴 𝗠𝗶𝗻𝗱𝘀𝗲𝘁: I focus on understanding what you want to achieve with Work With Me. I deliver practical solutions. I will help you build your project. I will build a viable product or a full-scale mobile app. I will also build a web platform or an Artificial Intelligence-powered solution. Feel free to send me a message to discuss your project requirements. Let’s Build Something Great.

  • JavaScript
  • PHP
  • Database
  • React
  • React Native
  • Android SDK
  • App Development
  • Laravel
  • Expo.io
  • Firebase
  • Supabase
  • Website
  • Web API
  • iOS Development
  • AI Chatbot
Manzar B.

Lahore, Pakistan

$30/hr
5.0
7 jobs

Experienced Python Developer certified by Credly, with proven expertise in Machine Learning, Deep Learning, Django, Flask, Docker, Nginx, AWS, Apache Kafka, and NumPy. I’m Manzar, a dedicated developer with 5 years of hands-on experience delivering scalable, reliable, and production-ready solutions. ✨ Professional Summary I specialize in building high-performance applications using Python and modern frameworks. I’ve contributed to numerous projects across different industries, focusing on clean architecture, robust backend systems, API development, and data-driven solutions. I always aim to exceed expectations and deliver work that creates long-term value. ⚙️ Technology Stack • Languages: Python • Databases: Redshift, PostgreSQL, MySQL, MongoDB, and others • Frameworks: Django, Flask, FastAPI • Version Control: Git, GitHub, GitLab, Bitbucket • CI/CD: Jenkins, CircleCI, and similar tools • Testing: Postman, Unit Testing, Pytest • Backend & Cloud: REST APIs, AWS Services, Docker, Nginx • Messaging & Processing: Apache Kafka 🧠 Working Style I focus on understanding client goals deeply and delivering well-structured, maintainable solutions. I adapt quickly to new technologies and thrive in problem-solving environments. My aim is always to build trust through consistent performance and quality work. 🤝 Let’s Connect If you have any questions or want to discuss your project, feel free to reach out. I’m always open to new opportunities and collaborations. Skills & Tools: Python (#Python, #Django, #Django REST Framework, #Celery, #Pytest, #UnitTest, #Selenium, #Flask, #FastAPI) Frontend (#HTML5, #CSS3, #SASS) Data Science (#ScikitLearn, #Numpy, #Pandas, #ApacheSpark) Databases & Caching (#MySQL, #MongoDB, #Redis) DevOps (Docker, #EC2, #S3, #Ubuntu, #CentOS, #Nginx) Project Tools (#Git, #Gitflow, #Trello, #JIRA, #Slack)

  • Python
  • FastAPI
  • Flask
  • Django
  • React
  • RESTful API
  • Deep Learning
Inaam I.

Lahore, Pakistan

$25/hr
5.0
15 jobs

I've spent 7+ years building Python systems as a developer before going full-time on Upwork last year. I focus on two kinds of work: turning unstructured data into something an LLM can actually reason over, or extracting data from the web at scale. What I build: - RAG pipelines that make docs, PDFs, and internal knowledge searchable through a chat interface - AI agents that chain LLM calls with tool use to automate tasks that used to need a human in the loop - Large-scale scrapers for targets behind Cloudflare, anti-bot fingerprinting, or heavy JS rendering - ETL pipelines that clean extracted data into structured JSON or SQL for downstream use - FastAPI backends and dashboards for AI and data workflows Recent projects: - AI platform that converts any website into a production-ready HubSpot theme — cut setup from 3-4 days to under an hour, live in production for a HubSpot agency - Parts aggregation system pulling 50M+ records from 3 supplier sites, with a monitoring dashboard for extraction health - Court records lead system for a legal advocacy firm — extracts filings from 3 US court websites into a searchable dashboard used daily Core stack: - Languages: Python, SQL - AI/LLM: LangChain, OpenAI API, Anthropic API, Llama, Tensorflow, Pytorch - Vector DBs: Pinecone, Qdrant, pgvector - Scraping: Playwright, Scrapy, BeautifulSoup, Selenium - Backend: FastAPI, PostgreSQL, Celery, Redis, Flask, Django - Infrastructure: Docker, AWS - Deployments: Runpod, Heroku, any Windows/Ubuntu Servers How I work: - I flag spec problems early instead of building the wrong thing - I ship code that runs in your environment, not just on my machine - I stay reachable after delivery so you can actually use what I built If you're considering me, send a short message describing the problem you want solved. I'll reply with whether I think I can help and how I'd approach it.

  • Python
  • Data Science
  • Computer Vision
  • Machine Learning
  • Natural Language Processing
  • Deep Learning
  • Deep Neural Network
  • Data Extraction
  • Automation
  • Python Script
  • Data Scraping
  • MongoDB
  • AI Builder
  • OCR Software
  • Web Scraping
Aqsa E.

Lahore, Pakistan

$12/hr
5.0
7 jobs

I specialize in Web Scraping, OCR, Reverse Engineering, Data Extraction, and Data Mining helping businesses transform messy, unstructured data into accurate and actionable insights. By combining automation, AI, and smart data workflows, I enable faster decision making while eliminating repetitive manual work. Backed by an MS in Computing and Data Science, I bring a strong foundation in research and applied data solutions across the full data pipeline from raw extraction to clean, analysis ready output. 𝗪𝗵𝗮𝘁 𝗜 𝗛𝗮𝘃𝗲 𝗕𝘂𝗶𝗹𝘁 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & 𝗔𝗻𝘁𝗶 𝗕𝗼𝘁 𝗕𝘆𝗽𝗮𝘀𝘀 - Scraped restaurant data using a browser based API to bypass captcha and anti-bot protection, delivering structured Excel outputs across multiple regions - Reverse engineered GraphQL and Next.js endpoints to extract full dispensary inventory including product variants, store lists, and categories bypassing Cloudflare with cloudscraper - Built a Playwright based scraper for real estate listings, capturing price, beds, baths, taxes, agent contact info, and more into clean CSV outputs - Collected 13,600 commodity news articles across 286 pages, overcoming Cloudflare protection with human like browsing simulation for financial sentiment analysis - Scraped and cleaned structured product data from a global fashion e-commerce store, parsing both stitched and unstitched product lines into analysis-ready datasets - Built a Google Maps crawler to collect restaurant details across major U.S. cities including ratings, cuisine, hours, and service options 𝗚𝗜𝗦 & 𝗚𝗲𝗼𝘀𝗽𝗮𝘁𝗶𝗮𝗹 𝗗𝗮𝘁𝗮 - Decoded binary encoded ArcGIS layers from a city GIS portal, extracting 25 spatial and non-spatial layers including hospitals, zoning, drainage, and street addresses - Converted Web Mercator coordinates (EPSG:3857) to WGS84 (EPSG:4326) using PyProj, producing clean GeoJSON and CSV outputs ready for SaaS integration 𝗣𝗗𝗙 & 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁 𝗘𝘅𝘁𝗿𝗮𝗰𝘁𝗶𝗼𝗻 - Built a Python ETL pipeline using PyMuPDF and Regex to extract recipe titles, calories, macros, ingredients, and instructions from nutrition PDFs into structured datasets - Developed a glycemic index crawler that scraped and categorized hundreds of ingredients by GI value, glycemic load, and macros for use in health and diet applications 𝗙𝗶𝗻𝗮𝗻𝗰𝗶𝗮𝗹 𝗗𝗮𝘁𝗮 & 𝗔𝗜 𝗔𝗻𝗻𝗼𝘁𝗮𝘁𝗶𝗼𝗻 - Collected three years of hourly WTI crude oil candlestick data (OHLCV) by bypassing Cloudflare and using a chunk based request strategy with rotating user agents - Built a LangChain agent powered by GPT-3.5 to automatically extract major geopolitical events from financial news and annotate their directional impact on crude oil prices 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿 - AI powered automation to eliminate repetitive manual workflows - Custom NLP pipelines for text processing and sentiment analysis - Web scraping systems for any source static, dynamic, or heavily protected - ETL workflows delivering clean, integrated, and database-ready data - Structured extraction from PDFs and images into CSV or database formats - Interactive dashboards in Power BI and Tableau for real time reporting 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 - Clear timelines and consistent progress updates - Scalable, maintainable, and well documented solutions - Transparent communication from kickoff to handover - Results that are built to last, not just to deliver once If you are looking for a reliable, results driven partner for your data, automation, or AI projects, let's talk. I will turn your data into a competitive advantage, not a burden.

  • Web Scraping
  • Web Crawling
  • Lead Generation
  • Data Extraction
  • Python
  • API Integration
  • Data Preprocessing
  • Data Engineering
  • Data Mining
  • Automation
  • Puppeteer
  • Scrapy
  • Selenium
  • Beautiful Soup
  • Exploratory Data Analysis

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