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AI / AWS Engineer | Bedrock, RAG, Serverless, and Cloud Solutions I help businesses build practical AI and cloud solutions on AWS. My expertise includes Amazon Bedrock, RAG systems, AI agents, OpenSearch vector search, Lambda, API Gateway, DynamoDB, S3, and serverless architecture. I can support projects such as AI chatbots, document search systems, automation tools, cloud backend development, and AWS architecture improvements. I hold all AWS certifications and have hands-on experience with generative AI, machine learning, IoT systems, computer vision, and cloud-native application development. I focus on creating solutions that are reliable, scalable, and easy to maintain. Whether you need an AI prototype, an AWS serverless backend, or technical guidance for your cloud architecture, I can help you move from idea to implementation.

Data & AI Solutions Engineer | Lead Generation & Web Data I build data pipelines and AI-powered tools that turn messy public web data into clean, decision-ready assets — and when it makes sense, into RAG-powered agents that answer questions from that data. What I solve: • Lead Generation at Scale — prospect databases with verified contacts (names, emails, phones, LinkedIn), enriched and deduplicated, ready for your sales team. • Market & Competitive Intelligence — pricing monitoring, product catalogs, review mining, market research. • Document Intelligence — parsing complex PDFs (tables, formulas, mixed-language) into structured Excel/CSV, and into chunked, embeddable formats for RAG. • AI Agents & RAG Pipelines — knowledge-base Q&A agents (WhatsApp, web, internal tools) on vector databases; document ingestion → chunking → embeddings → retrieval → LLM answer, with moderation and audit layers. • Anti-Bot & Hard Targets — Cloudflare, AWS-WAF, aggressive rate limiting: I know when to engineer around it and when to tell you it's not worth it. How I work: • Feasibility-first: I tell you what's realistic before you commit — including when the answer is "don't do this." • Accuracy over volume: every record is verified or clearly flagged. No fabricated data, ever. • Documented & reusable: scripts, schemas, pipelines you can run again without me. • AI done right: generated content is moderated and human-reviewed — I don't ship hallucination-prone outputs. Selected outcomes: • Built a 50,000+ record physician directory from publicly available health registries, deduplicated and URL-verified — delivered as a structured database for client's internal use. • Processed 60,000+ facility records (clinics, hospitals, labs) from an open government registry, with ~85% phone and ~75% email completeness — cleaned, normalized, and export-ready. • Extracted 15,000+ product reviews from a Cloudflare-protected e-commerce site in 3 days with dual-pass validation. • Delivered a 5,000+ record Google Maps enrichment pipeline (phone/website/email matching, 23-28% verified-match rate). • Processed formula-heavy, bilingual PDFs into structured Excel — eliminating days of manual re-entry. Skills: lead generation, prospect list, B2B data, list building, contact enrichment, data scraping, web scraping, Python, Playwright, Selenium, API integration, RAG, vector databases, PDF parsing, data cleaning, data mining, market research Languages: Fluent English & Chinese. Message me with your use case. I'll reply within 24 hours with a feasibility assessment and a realistic plan — including what I can't do, so you never waste budget on false promises.

I am a CAD/Revit Technician with a worldwide experience. My main field of work is the transition from point cloud data to CAD/BIM(as-built measurements). I have huge potential and inspiration, I am open to share my knowledge and experience as a Freelancer, bringing the BEST result on the market. I do always increase my skills, exploring new techniques and approaches.

I'm a Senior Data Engineer with 4.5+ years of experience building scalable, cloud-native data platforms that turn raw data into reliable, business-ready insights. I've delivered enterprise solutions across banking (NAB), healthcare (Molina), and CPG (PepsiCo), specializing in end-to-end pipeline architecture, data modeling, and cloud migrations. What I bring to your project: 🔹 Cloud Data Engineering – Deep expertise in Azure (Databricks, Data Factory, Synapse) and AWS (EMR, Glue, S3, RedShift), with hands-on migration experience from on-prem and Teradata to cloud. 🔹 Pipeline Architecture & ETL – I design and build robust ingestion frameworks handling batch, incremental, and real-time data (Event Hub, Kafka) across formats like JSON, CSV, Parquet, and fixed-width files. 🔹 Data Modeling & Warehousing – Skilled in dimensional modeling, Data Vault, star/snowflake schemas, and silver/gold layer design. I've modeled 50+ tables across Oracle Fusion, SAP S/4, and healthcare domains. 🔹 Transformation & Orchestration – I translate complex business rules into DBT models, orchestrate workflows with Apache Airflow or AutoSys, and automate CI/CD via Jenkins and Azure DevOps. 🔹 Performance & Governance – I tune PostgreSQL and Spark jobs, implement data quality checks, reconciliation frameworks, and ensure compliance with data governance standards. 🔹 Generative AI & MLOps – Databricks-certified in Generative AI, with experience integrating MLflow for experiment tracking and building LLM-based automation using OpenAI and LangChain. Tech Stack: Python | SQL | Scala | Apache Spark | DBT | PostgreSQL | Snowflake | Airflow | Databricks | Azure | AWS | Git | Jenkins | MLflow | Power BI Certifications: Databricks Certified Data Engineer Professional | Azure Data Engineer (DP-203) | Snowflake SnowPro Core | Fabric Analytics Engineer (DP-600) | Generative AI Engineer Associate Whether you need a production-grade pipeline, a cloud migration, or a well-modeled data warehouse, I deliver clean, documented, and scalable solutions — on time and with clear communication. Let's discuss your project!

Are you struggling to collect reliable data from websites that block scrapers or constantly change? I build production-grade Python scraping and AI data extraction pipelines that bypass Cloudflare, DataDome, and PerimeterX protections, handle CAPTCHAs and rotating proxies, and deliver clean, structured data to your database or dashboard automatically — every day, without any manual work on your end. With 5+ years of experience, 2,000+ Upwork hours, and 100+ successful projects, I don't just hand you a script — I build a complete data solution. WHAT I BUILD FOR YOU ✔ AI-powered web scraping — LLM-based parsing, self-healing selectors, and RAG-ready structured datasets ✔ Bypassing Cloudflare, DataDome, PerimeterX, and Akamai bot protection ✔ Playwright and Scrapy for JavaScript-heavy, dynamic websites ✔ API and GraphQL reverse engineering and data extraction ✔ Rotating residential proxies and CAPTCHA solving (2Captcha, CapSolver) ✔ Selenium for legacy sites and complex login flows ✔ Mobile app data extraction via API interception DATA STORAGE AND DELIVERY ▪ PostgreSQL and MongoDB database backends ▪ Google Sheets API — live, auto-updating sheets ▪ Clean CSV, JSON, Excel exports ▪ Streamlit dashboards so you can monitor your data anytime AUTOMATION AND SCHEDULING ✦ Automated data pipelines — daily, weekly, or monthly schedules ✦ AI integration with your existing scraping tools and workflows (OpenAI, Claude, custom APIs) ✦ Auto-alerts when data changes or the scraper breaks ✦ Fully documented scripts you can reuse anytime I offer 3 service levels: 1. One-time scrape and data delivery 2. Automated pipeline with database backend 3. Fully managed monthly data service Message me with your target website, and I will tell you exactly how I would approach it — usually within 1 hour.

I am a Topographic Engineer with over 14 years of experience in surveying, LiDAR, photogrammetry, AutoCAD drafting, point cloud processing and converting into accurate and clean 2D plans. I specialize in transforming raw geospatial data into accurate, structured, and ready-to-use engineering deliverables. Whether the data comes from point clouds (LAZ, LAS, E57, RCP, RCS, PTS, PTX, PLY), drone imagery, or laser scans, I process and convert it into clean, precise, and professional CAD drawings. My services include: ✔ Topographic plans from point clouds (LiDAR / laser scanning) ✔ Point cloud to DWG / DXF conversion ✔ Point cloud classification, cleaning, and segmentation ✔ PDF to DWG / DWG to PDF conversion ✔ CAD drafting from orthophotos and survey data ✔ Sections, cross-sections, and elevation drawings ✔ Processing of drone data (Pix4Dmatic / Metashape) ✔ Generation of orthophotos, DSM/DTM, and dense point clouds With strong experience in large infrastructure and construction projects, I understand the importance of precision, clarity, and reliability. I deliver well-structured drawings that are easy to use for engineering, design, and construction execution. 🔹 Tools: • AutoCAD (Advanced drafting & CAD production) • CloudWorx (Point Cloud to CAD extraction) • Leica Cyclone & Register 360 (registration, cleaning, classification, inspection) • Trimble RealWorks (point cloud processing & classification) • Pix4Dmatic & Agisoft Metashape (image processing, 3D reconstruction, orthophotos, DSM/DTM) • QGIS (data conversion, SHP/KML/DXF handling, GIS workflows) • Covadis (topographic design, profiles, and survey calculations) 🔹 Why clients choose me: ✔ 14+ years of real field experience ✔ High precision and clean drawings ✔ Strict deadline adherence ✔ Clear communication and regular updates I am committed to delivering accurate, clean, and reliable results for every project. Let’s work together to turn your data into high-quality engineering drawings.