I'm Reliable Advanced Data Entry & Data Collection Specialist, with solid experience in B2B Lead Generation & Data Researcher, and AI Data annotation & Labeling Expert...
Over the past 2+ years, I helped businesses and built prospect lists across multiple industries, managed data entry and CRM workflows for real estate and e-commerce clients, and worked hands-on with CVAT and Roboflow on AI annotation projects. I move between structured data (spreadsheets, CRM records, product listings) and unstructured data (web research, image labeling, PDF extraction) without losing accuracy or speed.
✅ 𝗠𝘆 𝗦𝗸𝗶𝗹𝗹𝘀 𝗮𝗻𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲:
👉🏼 Data Research & Lead Generation
👉🏼 Data Entry
👉🏼 Data Collection
👉🏼 Data Mining
👉🏼 AI Data Research & Verification
👉🏼 Data Extraction
👉🏼 LinkedIn Lead Research
👉🏼 Prospect List Development
👉🏼 Email & Phone Finding
👉🏼 LinkedIn & Email Outreach
👉🏼 CRM Management (Salesforce, HubSpot, Zoho, Pipedrive, GHL)
👉🏼 Data Annotation & AI/ML Data Prep
👉🏼 Data Annotation
👉🏼 Image Labeling
👉🏼 CVAT
👉🏼 Roboflow
👉🏼 AI/ML Ready Data Preparation
👉🏼 General & Admin Support
👉🏼 Microsoft Office & Excel
👉🏼 PDF Conversion
👉🏼 Web Research
👉🏼 E-commerce Product Listing
👉🏼 Real Estate Data Entry & Property Listings
Let's talk about your project and how I can help. Just send me a message or invite me. I usually respond within minutes.
Cheers,
Muaaz
Data Entry
Data Annotation
B2B Lead Generation
Lead Generation
Data Collection
CVAT
Roboflow
LinkedIn Lead Generation
Prospect List
Data Mining
Data Extraction
CRM Software
Salesforce
Microsoft Excel
PDF Conversion
Market Research
Online Research
Email Outreach
SEO Keyword Research
Vivek M.
Surat, India
$30/hr
5.0
114 jobs
With 7+ years of experience, I'm Expert in Web Scraping, Data Engineer, AI/ML and Full-Stack Developer specializing in large-scale data extraction, automation, and pipeline engineering. I build robust, scalable systems that transform raw data into actionable insights.
💡 Core Expertise
Web Scraping & Automation: Expert in bypassing anti-bot systems (CAPTCHA, rate limits, IP rotation) using Scrapy, BeautifulSoup, Selenium, Playwright, and rotating proxies.
Automation & Workflow Engineering: Airflow, Prefect, Dagster, n8n, Zapier, Make, Power Automate, UiPath, Step Functions, Logic Apps, GCP Workflows, Business Process Automation, RPA, CI/CD, Jenkins, GitHub Actions, GitLab CI/CD, Monitoring & Alerting.
Data Engineering: Designing and building scalable ETL/ELT pipelines for structured, semi-structured, and unstructured data using Apache Airflow, Apache Spark (PySpark), Pandas, Dask, Databricks, Snowflake, Apache Kafka, Apache Hive, Apache Hadoop, Delta Lake, Apache Iceberg, dbt, AWS Glue, Azure Data Factory, Google Cloud Dataflow, Apache NiFi, Trino, Presto, and Apache Beam.
Experienced in data warehousing, data lakes, lakehouse architectures, data modeling, data transformation, data quality, data governance, batch and real-time processing, streaming data pipelines, orchestration, workflow automation, schema design, partitioning, optimization, and performance tuning. Proficient with cloud platforms including AWS, Azure, and GCP, S3, Redshift, EMR, Athena, Lambda, Azure Synapse Analytics, Azure Data Lake Storage, BigQuery, Cloud Storage, and Pub/Sub. Skilled in SQL, Python, data integration, data migration, CDC, metadata management, monitoring, CI/CD, Docker, Kubernetes, and modern data stack technologies.
Backend Development: High-performance APIs and microservices with FastAPI, Django, Flask, and Celery for async task handling.
AI/ML Integration: Leveraging NLP and LLMs (LangChain, Llama, NLTK) for data enrichment, classification, and intelligent automation.
Cloud & DevOps: Deploying scalable scrapers and data workflows on AWS (Lambda, ECS, S3), GCP, Docker, and Kubernetes.
🛠️ Tech Stack
Data & Scraping:
▸ Scrapy | Selenium | Playwright | Proxies (BrightData, ScraperAPI, etc)
▸ Pandas | PySpark | Apache Airflow | PostgreSQL | MongoDB | Redis
Backend & Cloud:
▸ Python (FastAPI, Django, Flask) | Celery | RabbitMQ
▸ AWS (Lambda, ECS, RDS, S3) | GCP | Docker | Kubernetes
AI/ML:
▸ NLP (NLTK, spaCy) | LLMs (LangChain, OpenAI, Llama) | Data Annotation
Let's turn your data challenges into reliable, scalable solutions. Send me a message to discuss your project!
Python
Data Scraping
Data Mining
Scrapy
Selenium
Scripting
Web Crawling
Data Extraction
JavaScript
AWS Lambda
Node.js
Web Scraping
Data Engineering
Flask
Django
Hwei Geok N.
Duesseldorf, Germany
$150/hr
5.0
21 jobs
I'm an Upwork Expert-Vetted Data Scientist who covers what usually takes two specialists: classic ML and modern LLM systems, shipped to production.
Nobody understands your business like you do, and you know exactly the bottleneck you want gone. You want someone who can see it just as clearly, bring it to life the way you imagined, and build it to last. That has been my track record.
Imagine handing off your idea, and what comes back makes you say, "This is exactly what I had in mind!" That is the feedback I hear most from my clients.
Here's what working together looks like: You explain the vision. I turn it into a clear plan, build the system end-to-end, and ship something your team can actually run and trust.
Whether it's an LLM or RAG application, an AI agent, or a forecasting or anomaly-detection engine, it is handed over to you already deployed in production, documented, and yours to keep building on.
What my clients say:
→ "She took our vision as her own and brought it to life."
→ "When she says she'll handle something, it's done."
→ "Hwei is the proverbial needle in a haystack. She gets it. She gets it done."
Recent projects:
• A US women's health startup: I led the AI intelligence layer behind their production multi-agent chatbot, live ahead of their fundraise.
• A Fortune 500 consumer brand: I built a shelf-life forecasting platform that turned weeks of manual modeling into 30-second predictions.
• An Italian telecom firm: I built an LLM document validation pipeline that cut compliance review from days to minutes, with zero false approvals against their own 99.7% precision target.
• A Dutch water consortium: I built an anomaly-detection system that caught real contamination with zero false alarms, then grew it into a 12.3M-measurement data platform that their own team can run without a developer.
→ Expert-Vetted · Top 1% on Upwork · 100% Job Success
→ ML and AI since 2018 · 8 published papers · Trained at Fraunhofer SCAI and the University of Hamburg
Tell me what you're trying to build, and I'll reply with a clear path forward, built around your goals.
==================
Tools and capabilities:
• Generative AI and LLMs: large language models, RAG (Retrieval Augmented Generation), AI agents and multi-agent systems, chatbots, prompt engineering, LLM evaluation, vector databases, LangChain, Pydantic AI
• Machine learning: predictive modeling, anomaly detection, time series forecasting, predictive maintenance, statistical analysis, deep learning, computer vision, natural language processing (NLP)
• Engineering and delivery: Python, FastAPI, Docker, cloud deployment (AWS, Azure, Render), data analysis, data pipelines, interactive dashboards (R Shiny, Streamlit, Gradio), data visualization
• Model APIs: OpenAI, Anthropic Claude, Google Gemini, Hugging Face
• Consulting: artificial intelligence (AI) strategy, AI implementation, AI consulting, code audits, knowledge transfer
Large Language Model
Retrieval Augmented Generation
AI Agent Development
Generative AI
Prompt Engineering
Machine Learning
Artificial Intelligence
Anomaly Detection
Time Series Forecasting
Predictive Analytics
Data Engineering
LangChain
Computer Vision
Statistical Analysis
Chatbot Development
Data Visualization
Python
Data Science
AI Consulting
AI Implementation
Saram A.
Rawalpindi, Pakistan
$14/hr
5.0
1 jobs
𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝗱𝗼𝗻'𝘁 𝗻𝗲𝗲𝗱 𝗺𝗼𝗿𝗲 𝗔𝗜 𝘁𝗼𝗼𝗹𝘀. 𝗧𝗵𝗲𝘆 𝗻𝗲𝗲𝗱 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗵𝗮𝘁 𝗿𝗲𝗱𝘂𝗰𝗲 𝗺𝗮𝗻𝘂𝗮𝗹 𝘄𝗼𝗿𝗸, 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 𝘁𝗵𝗲𝗶𝗿 𝘄𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀, 𝗮𝗻𝗱 𝗵𝗲𝗹𝗽 𝘁𝗲𝗮𝗺𝘀 𝗱𝗼 𝗺𝗼𝗿𝗲 𝘄𝗶𝘁𝗵𝗼𝘂𝘁 𝗵𝗶𝗿𝗶𝗻𝗴 𝗺𝗼𝗿𝗲 𝗽𝗲𝗼𝗽𝗹𝗲.
I'm an AI Systems Architect and OpenClaw Specialist with 3+ years of experience building AI agents, business automation systems, RAG solutions, and full-stack AI applications that run reliably in production.
𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘄𝗶𝘁𝗵:
- AI Agents and Task Automation
- Business Workflow Automation
- OpenClaw Setup and Custom Development
- RAG and Internal Knowledge Systems
- Full-Stack AI Applications
- API Integrations and System Connectivity
- Internal Tools and Operational Dashboards
- MCP Servers and Custom Tool Integrations
𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵:
- E-commerce and SaaS my main focus
- Also work with agencies, logistics, real estate, and more
𝗪𝗵𝗮𝘁 𝗺𝗮𝗸𝗲𝘀 𝗺𝗲 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁:
- I focus on solving real business problems, not adding unnecessary complexity
- I take projects from planning all the way to deployment
- I build things that teams can actually use every day
- I hold relevant certifications in AI and cloud technologies
- You can see my work in action live demos available on request
𝗥𝗲𝗰𝗲𝗻𝘁 𝘄𝗼𝗿𝗸 𝗶𝗻𝗰𝗹𝘂𝗱𝗲𝘀:
- Built AI agents that helped teams handle the workload of 3-5 extra people without expanding the team
- Developed OpenClaw assistants that use tools, remember context, and complete tasks across workflows
- Created internal document and knowledge search systems
- Built full AI applications from planning and design to live deployment
- Connected AI systems with APIs, databases, and existing business software
𝗖𝗼𝗿𝗲 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀:
OpenClaw • Python • FastAPI • LangChain • LangGraph • RAG • PostgreSQL • React • Next.js • Node.js • TypeScript • Docker • OpenAI • Claude • MCP
𝗟𝗲𝘁'𝘀 𝗧𝗮𝗹𝗸:
If you want to automate your operations, reduce manual work, or build an AI-powered system , send me a message and let's get it built.
Claude
AI Agent Development
Business Process Automation
LangChain
Retrieval Augmented Generation
FastAPI
Next.js
REST API
CI/CD
Node.js
TypeScript
Docker
AI App Development
Software Architecture & Design
Software Architecture
OpenAPI
Full-Stack Development
UI/UX Prototyping
App Design
Prototype
Farwa H.
Vihari, Pakistan
$11/hr
5.0
19 jobs
Need accurate data from complex websites, automated web research, enriched lead lists, or clean datasets without wasting time fixing errors? I can help.
I’m a Top Rated Web Scraping and Lead Enrichment Specialist with 10+ years of experience helping SaaS companies, agencies, sales teams, and growing businesses collect, organize, verify, and enrich large volumes of data.
I specialize in Web Scraping, Playwright Automation, Scrapy, Custom Parsers, Web Crawlers, Data Mining, Lead Enrichment, B2B Lead Generation, and Data Cleaning. My focus is not just collecting data. I deliver clean, structured, accurate, and ready-to-use files that fit your workflow.
I have researched and processed more than 10M B2B leads across 70+ industries and delivered over 1M influencer profiles for marketing and outreach campaigns.
💼 SERVICES I OFFER
🌐 Web Scraping and Data Extraction
🔹 Web scraping from directories, listings, marketplaces, and business websites
🔹 Data extraction from dynamic and JavaScript-based websites
🔹 Playwright browser automation
🔹 Scrapy spider and crawler development
🔹 Selenium and BeautifulSoup scraping
🔹 Custom parsers for structured and unstructured data
🔹 Pagination, filtering, login, and form automation
🔹 Large-scale data collection and export
🔹 CSV, Excel, JSON, and Google Sheets delivery
🕷 Web Crawlers and Automation
🔹 Custom web crawler development
🔹 Automated data collection workflows
🔹 Multi-page and multi-category crawling
🔹 Duplicate detection and data validation
🔹 Error handling and progress-saving systems
🔹 Scheduled and repeatable scraping workflows
🔹 Browser automation for repetitive research tasks
🔹 Data extraction from complex website structures
🔍 B2B Lead Generation and Research
🔹 Targeted B2B lead generation
🔹 Founder, CEO, executive, and decision-maker research
🔹 Company and contact list building
🔹 LinkedIn Sales Navigator research
🔹 Apollo prospecting and list building
🔹 Industry, location, company size, and job-title targeting
🔹 Competitor, market, and company research
🔹 Influencer research across YouTube, Instagram, and TikTok
🧩 Lead Enrichment and Verification
🔹 Contact and company data enrichment
🔹 Business email research and verification
🔹 Job title, company size, industry, location, and revenue enrichment
🔹 Website, LinkedIn, phone, and social profile research
🔹 Email validation using ZeroBounce and NeverBounce
🔹 Missing-field completion
🔹 Existing database enhancement
🔹 CRM-ready lead preparation
📊 Data Cleaning and Data Mining
🔹 Data mining and online data collection
🔹 Duplicate email and company removal
🔹 Spreadsheet cleaning and formatting
🔹 Data normalization and categorization
🔹 Invalid record identification
🔹 Website and domain validation
🔹 Large CSV and Excel file processing
🔹 Dataset splitting, merging, filtering, and restructuring
🔹 Quality checks before final delivery
🛠 TOOLS AND TECHNOLOGIES
🔹 Playwright, Scrapy, Python, Selenium, BeautifulSoup
🔹 APIs, custom parsers, web crawlers, and automation scripts
🔹 Apollo, LinkedIn Sales Navigator, ZoomInfo, Hunter, Lusha, and Snov
🔹 ZeroBounce and NeverBounce
🔹 Microsoft Excel, Google Sheets, CSV, and JSON
🔹 HubSpot, Salesforce, and Pipedrive
🎯 INDUSTRIES I HAVE WORKED WITH
SaaS, Healthcare, Medical Practices, E-commerce, Real Estate, Finance, Marketing, Advertising, Beauty, Wellness, Retail, Education, Legal Services, Travel, Hospitality, and Professional Services.
✅ WHY CLIENTS CHOOSE ME
🔹 Top Rated freelancer with a 100% Job Success Score
🔹 10+ years of research and data experience
🔹 More than 10M B2B leads researched and processed
🔹 More than 1M influencer profiles delivered
🔹 Strong attention to accuracy, duplicates, and missing information
🔹 Experience handling both small and large datasets
🔹 Clear communication and organized delivery
🔹 Clean, structured, and ready-to-use final files
Before beginning a project, I carefully review your target websites, ideal customer profile, required fields, data volume, output format, and quality standards. I then choose the most reliable research, scraping, or enrichment method for your requirements.
Click “Invite to Job” or send me your project scope through Upwork. Please include your target sources, required fields, estimated volume, and preferred output format so I can recommend the most practical approach.
Lead Generation
Sales Lead Lists
Social Media Lead Generation
Influencer Marketing
Data Entry
List Building
Academic Research
Research Methods
Lead Capture
B2B Lead Generation
Lead Nurturing
Web Scraping
Scrapy
Data Scraping
Screen Scraping
Email List
TikTok Marketing
Instagram
YouTube
Web Crawler
Carlos A.
San Luis Potosi, Mexico
$40/hr
5.0
47 jobs
If a website fights back - enterprise anti-bot, hidden APIs, protected platforms - that's exactly what I've specialized in for 9+ years. Data extraction at scale from sources that don't want to give it up: real estate portals, marketplaces, retail, court and government platforms. When standard scraping tools and AI scrapers hit a wall, that's where my work starts.
Real estate and property data, marketplace and price monitoring, court and public records, B2B lead generation - different sources, same problem: getting clean data out reliably, and keeping the pipeline alive long after the demo.
Whatever the source, you get working infrastructure that runs daily - not a zip file with a script in it.
20+ years in technology, with a network security background. I turn extraction into systems clients run their businesses on: deal sourcing, lead generation, price monitoring, market intelligence.
Clients usually come to me when:
- An existing extraction process keeps breaking and the data it feeds can't be trusted anymore
- The data lives behind protected sites, anti-bot, or a hidden API no off-the-shelf tool reaches
- Prices, catalogs or listings need tracking across marketplaces and competitors at a cadence no manual process can hold
- The work spans many sites, counties or platforms and needs one system, not one-offs per source
- Public records need turning into lead generation and skip-tracing workflows
- The data has to stay current - ongoing monitoring, not a one-time export
Where I'm genuinely hard to replace:
Protected sites and hidden APIs. Akamai, Cloudflare, DataDome, PerimeterX, reCaptcha, device fingerprinting. Mobile and web reverse engineering to reach hidden APIs when the protocol allows it - direct platform connections over headless browsers. And if a target is technically or legally not viable, I'll tell you that too, before you spend money.
Court and government platforms. Tyler Odyssey, Socrata, Granicus, Laserfiche, CivicPlus, ArcGIS and a few dozen more I've already mapped. Here's the thing most people miss: what looks like hundreds of different government websites is usually a handful of underlying platforms. On a recent project, 250+ government sites came down to 10 integrations. Build the adapter once and the same system covers an entire state. Your project starts further ahead because of every project before it.
Pipelines that stay alive. Monitoring, alerting, retries, data quality checks, AI-assisted classification where it makes sense. I've taken over plenty of projects where the previous solution worked great in the demo and died three weeks later.
Getting the data out is half the job. I also wire it into the systems your team already runs - CRM, database, sheets, scheduled reports (HubSpot, Postgres and the like) - so the pipeline ends where you actually work, not in a raw file.
Selected work:
- 150,000+ grocery products monitored every 2-5 hours across major UK retailers
- 125,000+ automotive parts synchronized daily from marketplaces behind enterprise anti-bot
- Court records pipeline detecting ownership distress signals across 225+ counties, feeding real estate acquisition workflows
- 100,000+ real estate listings deduplicated and merged with ownership, tax and valuation data for AVM workflows
- 96,000+ business entities extracted from government registries, classified by industry with LLMs, enriched with contact data
- 5,000+ municipal meetings scraped and analyzed with AI keyword intelligence across five government platforms; adding a new jurisdiction requires zero code changes
Not sure if your target is even extractable? Every project starts with a short feasibility check: I map the source, the protection layer and the realistic effort, so you know what is viable before committing to a build. If it cannot be done reliably (or legally), I tell you upfront and you spend nothing chasing it.
---
web scraping, data extraction, price monitoring, product data, catalog data, marketplace data, ecommerce data, competitor intelligence, real estate data, property data, real estate leads, mls data, foreclosure data, court records monitoring, government data, municipal data, foia, lead generation, b2b data, skip tracing, anti-bot bypass, bot detection, cloudflare, akamai, datadome, perimeterx, captcha solving, device fingerprinting, reverse engineering, hidden api, headless browser, proxy rotation, browser automation, data pipeline, scheduled extraction, data orchestration, etl pipeline, python, scrapy, playwright, postgresql, supabase, api integration, data normalization, data enrichment, data validation, document extraction, llm integration, demandstar, tyler odyssey, tyler energov, granicus, primegov, legistar, civicplus, laserfiche, accela, socrata, arcgis hub, ckan, opengov, clerk of courts, property appraisers.
Web Scraping
Data Extraction
Python
API Integration
ETL Pipeline
Browser Automation
Data Engineering
PostgreSQL
Real Estate
Lead Generation
Reverse Engineering
Scrapy
Real Estate Lead Generation
Web Crawling
Data Mining
Artificial Intelligence
Data Scraping
Automation
Selenium
Ecommerce
How it works
Post a job for freePost a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
KD
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
DM
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
KK
Katja Krohn
Summa Linguae
How do I hire a Haystack Specialist on Upwork?
You can hire a Haystack Specialist on Upwork in four simple steps:
Create a job post tailored to your Haystack Specialist project scope. We’ll walk you through the process step by step.
Browse top Haystack Specialist talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top Haystack Specialist profiles and interview.
Hire the right Haystack Specialist for your project from Upwork, the world’s largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Haystack Specialist?
Rates charged by Haystack Specialists on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Haystack Specialist on Upwork?
As the world’s work marketplace, we connect highly-skilled freelance Haystack Specialists and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Haystack Specialist team you need to succeed.
Can I hire a Haystack Specialist within 24 hours on Upwork?
Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Haystack Specialist proposals within 24 hours of posting a job description.