Helping people to make sense of data is my personal mission, which involves advocating a data-driven culture. As a Data Scientist, I have nearly 10 years of experience in extracting, cleansing/wrangling data, conducting Exploratory Data Analysis (EDA), building Machine Learning and Deep Learning models, and presenting insights to stakeholders through effective data visualization. Completed projects include building Machine Learning models to predict housing prices, detect financial criminal activity, assign sentiment scores in financial report and perform customer segmentation.

"In addition to his technical prowess, Hector is a brilliant person who thoroughly impressed me with his creative thinking/problem solving skills. I'd give him 100 stars if Upwork would let me, and I will definitely hire him again when an opportunity arises."- Luciano P. Hi! My name is Hector and I'm a specialist in everything data-related. I'll design pipelines for you that will: * Get you data from anywhere * Clean and process raw, unstructured data (whether it's image/audio/text/excel/SQL db) * Analyze your data and extract powerful insights from it (statistical analysis and stunning visualizations included) * Build predicting models or recommendation systems with AI and modern Machine Learning tools * Deliver you data products in the form of reports, dashboards, or web apps for your regular, day to day needs Lets take it to the next level! [*A discount is offered for extended work].

⚡ Data pipelines breaking, slow, or too expensive? That’s exactly what I fix. I help companies turn messy, unreliable data systems into scalable, high-performance pipelines — so teams can actually trust their data and move faster. Over the past few years, I’ve built and optimized data platforms handling 50GB/day streams to 500GB+ processing workloads, across ecommerce, fintech, real estate, and SaaS. 🔑 What I Deliver (Real Outcomes, Not Just Tools) 🔹 Robust ETL/ELT Pipelines: Built on AWS Glue, Azure Data Factory, Databricks, Airflow → Designed for zero-failure execution & recovery-safe architecture 🔹 Cloud Data Warehousing: Redshift, Snowflake, BigQuery, Azure Synapse → Structured for fast queries, low cost, and scalable analytics 🔹 Real-Time & Batch Processing: PySpark, Kafka, Delta Lake → Handling millions of records daily with optimized latency 🔹 AI-Ready Data Foundations: → Clean, structured pipelines ready for ML models, LLMs, and BI tools. 🔹 Performance Optimization: → Reduced processing time by 50% on production workloads → Optimized queries & pipelines saving compute cost + runtime 🔹 Business Intelligence Layer: Power BI, Looker Studio → Dashboards that leadership teams actually use for decisions. 📦 Proven at Scale:- 🏪 Ecommerce Data Platform (1M+ stores | 500K customers): Built end-to-end ETL pipelines using AWS Glue Implemented incremental (delta) processing across multiple data sources Designed Redshift warehouse for high-volume analytics Delivered Power BI dashboards for business insights ✅ Enabled AI-driven personalization for 100K+ active users ✅ Reduced manual data dependency across teams 💳 FinTech / Freight Billing AI Platform: Designed data infrastructure for AP/AR automation Integrated ERP + TMS systems via APIs Built real-time dashboards + audit tracking ✅ Improved financial visibility & reconciliation accuracy ✅ Enabled automated decision-making for cash flow optimization 🏠 Real Estate Data Intelligence Platform: Built pipelines ingesting: Zillow Realtor HUD Census Crime datasets Centralized into PostgreSQL + Azure Data Warehouse ✅ Computed ROI, NOI, Cap Rate, Cash Flow at scale ✅ Enabled investment decision analytics 📊 Retail Location Intelligence (Databricks / Snowflake): Processed ~500GB mobile location data Built anomaly detection using moving averages ✅ Automated detection of: data drops duplicates false entries 🔧 Logistics Optimization (Azure): Replaced upsert with SQL MERGE ✅ Reduced processing time by 50% ✅ Achieved zero data loss in production pipelines 📡 Wellness Data Platform: Consolidated fragmented APIs into unified pipelines ✅ Fixed data failures on 250MB+ tables (~1GB compute load) ✅ Improved data consistency and pipeline reliability

🚀 I build end-to-end systems.From scraping the data to building the app that runs it. I am not just a scriptwriter,I am a Python Systems Engineer with a diverse toolkit. Whether you need to scrape complex websites, architect a high-speed data pipeline, or build a custom web application, I deliver clean, modular, and scalable code. My goal is simple: I automate your headaches and build your assets. 🛡️ 1. Automated Data Acquisition & Intelligence Forget simple scripts that break in a week. I engineer robust ETL pipelines designed for 99.9% availability. ▸ Anti-Bot Bypass: I specialize in handling Cloudflare, Captchas, and dynamic content to ensure uninterrupted data flow. ▸ Reverse Engineering: Whenever possible, I reverse-engineer internal APIs to extract data faster and cleaner than standard browser automation (Selenium/Playwright). ▸ The Result: Structured, validated data delivered directly into your warehouse (PostgreSQL, Snowflake) or via a custom API. ⚙️ 2. High-Performance Systems Architecture I build engines that handle heavy loads without lagging. ▸ Modular Pipelines: I recently architected a real-time pipeline integrating 45+ sources with <100ms latency. ▸ Scoring Engines: I build custom algorithms (using Pandas & NumPy) to rank and match entities, such as CV matching systems or Stock Confluence engines. ▸ Speed: Utilizing AsyncIO and Multiprocessing, I ensure your system can process thousands of tasks in seconds, not hours. 💻 3. Full-Stack Web Development (Django/FastAPI) Your data needs a home. I build the dashboard that controls it. ▸ Secure Backends: I develop robust backends using Django and FastAPI to manage your logic and users. ▸ API Development: I design RESTful APIs to serve your processed data to front-ends or mobile apps efficiently. ▸ Deployment: I handle the full life cycle setting up Linux/Ubuntu servers and deploying your app so it is live and stable. 🧠 Why Partner With Me? ✔ The Bridge Developer: I bridge the gap between "Data Scientist" and "Software Engineer." I can analyze the data and build the system that serves it. ✔ Clear Communication: I explain complex tech in plain English. You will always know exactly where your project stands. ✔ Reliability: I write modular, object-oriented code that is easy to maintain and doesn't break when you scale. 📩 Got a complex problem? Let’s chat. I’m ready to build..

Your data has answers. The problem is that most analysts stop at the surface, they describe what happened, hand you a chart, and call it done but I go further. I am an AI-powered Data Analyst and ML Engineer with 3+ years of experience turning raw, patchy business data into predictions, automated dashboards, and decisions that actually move numbers. I help founders like you and small teams bring everything into one place. I build simple KPI tracking systems and financial reports in Google Sheets and Excel, with clear weekly and monthly views of revenue, churn, cash flow, and growth. I work with Python, Pandas, SQL, Power BI, and machine learning models. Here is what that looks like in practice: ✦ Built a SaaS metrics system tracking MRR, ARR, churn, LTV, and burn rate — giving a founder real-time visibility into their business for the first time ✦ Helped a retail chain boost revenue by 23% using KPI dashboards that showed exactly where marketing spend was wasted. ✦ Enabled an eCommerce brand to catch underperforming SKUs before revenue dropped ✦ Built predictive models in Python and deployed them using FastAPI and Streamlit — not just notebooks but actual working tools. My technical toolkit: Python (Pandas, NumPy, Scikit-learn), SQL, Power BI, Google Sheets, Excel (Pivot Tables, Power Query, Macros), Jupyter Notebook, FastAPI, Docker, Streamlit, Business Intelligence, Data Pipeline Development. I work best with founders, SaaS companies, and data teams who need someone who can think like a data scientist and communicate like a business partner. I do not just run the analysis, I tell you what it means and what to do next. My previous clients have attested that I deliver before the deadline. Let's talk about what your data is actually trying to tell you. Looking forward to working with you!

Based in Argentina (UTC - 3), competitive price points (low COL). Significant discounts for big projects (more than 30 hours/week). SR data engineer and data architect. Team lead at Vordentech. Personal skills •Analytical and quality-oriented. I am interested in researching best practices and creating solutions that are resilient and work in general contexts. In the long term, 5-stars systems pay off the extra effort. • Communicative. I don't like waiting for 3 days to receive a reply, so I don't do that to others. You can expect fast feedback from me, at the very least a "I'll get back to you ASAP". Also, If I think you’re wrong in you're requirements, I’ll tell you and suggest alternative solutions :) Besides, I consider myself a friendly person and approachable person, who loves to help my colleagues whenever I can! Technical skills —— Data Engineering • Expertise in Python: I ranked in the top 15% out of 1.3 million people on the LinkedIn Python assessment (see portfolio). • SQL • ETL/ELT with Python, Databricks (Pyspark), DBT, Dagster, Airbyte and a lot of AWS services. • Python Google Style Guide. • Agile, Extreme Programming (XP) & Clean Code (and Google Python Style Guide) —— Cloud/DevOps • AWS: Batch, Step Functions, Glue, Athena, Boto3, Lambda, S3, EC2, IAM, KMS, SQS, etc. • Bash. Docker + ECS. CI/CD - Github actions. Terraform, SAM, CodePipeline.

🚀 Senior Python & AI Engineer | AI Automation | LLM Applications | SaaS Development I help startups and businesses turn ideas into production-ready AI applications, automation systems, and scalable SaaS platforms. With 8+ years of experience in Python and full-stack development, I combine strong software engineering with practical experience in LLMs, AI automation, APIs, cloud infrastructure, and modern web applications. Whether you need an AI-powered SaaS product, an LLM application, an intelligent automation workflow, or a scalable backend, I can help take it from idea to production. ━━━━━━━━━━━━━━━━━━ 🤖 AI & LLM APPLICATIONS ━━━━━━━━━━━━━━━━━━ • LLM-powered applications • AI assistants and chatbots • Retrieval-Augmented Generation RAG systems • AI-powered document and knowledge systems • AI agents and workflow automation • Prompt engineering and structured AI outputs • AI content and business process automation • OpenAI, Claude, Gemini, and other AI model integrations ━━━━━━━━━━━━━━━━━━ 🔄 AI AUTOMATION & INTEGRATIONS ━━━━━━━━━━━━━━━━━━ I build automation systems that reduce repetitive manual work and connect AI with existing business processes. • AI workflow automation • AI-powered data processing • API integrations • CRM and lead automation • Email and customer support automation • Webhooks and event-driven workflows • OAuth and third-party integrations • Background processing and scheduled workflows Tools include: n8n • Zapier • Make • OpenAI • Anthropic Claude • Twilio • Stripe ━━━━━━━━━━━━━━━━━━ 💻 PYTHON & FULL-STACK DEVELOPMENT ━━━━━━━━━━━━━━━━━━ Backend: • Python • FastAPI • Django • Django REST Framework • PostgreSQL • Redis • Celery • Elasticsearch • REST APIs • Background processing Frontend: • React • JavaScript • TypeScript • HTML/CSS • Tailwind CSS ━━━━━━━━━━━━━━━━━━ ☁️ CLOUD & PRODUCTION SYSTEMS ━━━━━━━━━━━━━━━━━━ • AWS and GCP • Docker • CI/CD pipelines • Scalable cloud deployments • Background workers and API infrastructure AWS Certified Cloud Practitioner ━━━━━━━━━━━━━━━━━━ 📊 DATA PROCESSING ━━━━━━━━━━━━━━━━━━ • Pandas and NumPy • Data transformation • CSV and Excel processing • API data ingestion • Elasticsearch • Data pipelines and automation ━━━━━━━━━━━━━━━━━━ 🌟 WHY WORK WITH ME? ━━━━━━━━━━━━━━━━━━ I bring strong production software engineering experience to AI development. I don't just build AI demos or connect an API to a chatbot. I focus on building systems that are: • Scalable • Maintainable • Secure • Well-structured • Production-ready • Designed for long-term growth My experience spans backend architecture, APIs, asynchronous processing, databases, cloud deployment, and full-stack development. This allows me to build the infrastructure around AI features, not just the AI integration itself. ━━━━━━━━━━━━━━━━━━ 💡 I CAN HELP YOU BUILD ━━━━━━━━━━━━━━━━━━ • AI-powered SaaS platforms • LLM applications • RAG and knowledge-base systems • AI agents and automation systems • AI document-processing systems • AI chatbots and assistants • Python, FastAPI, and Django backends • API and third-party integrations • Data processing pipelines • Existing application maintenance and scaling If you're looking for an engineer who can combine AI, automation, Python, backend architecture, and full-stack development to build a real production system, I'd be happy to discuss your project. 📩 Send me an invitation, and let's build something useful together.

I’m a Python Full Stack Developer with 7+ years of experience building web applications, automation solutions, data-driven systems, and AI-powered applications. **Core Expertise:** • Python Development (Django, Flask, FastAPI, REST APIs) • Full Stack Development (React, JavaScript, HTML, CSS) • Web Scraping & Automation (Selenium, Scrapy, BeautifulSoup, Playwright) • API Development & Third-party Integrations • Machine Learning & Data Analysis • WordPress Development (Custom Themes, Plugins, WooCommerce, APIs) • Cloud & Server Deployment (AWS, Google Cloud, Linux) I help businesses develop scalable web platforms, automate repetitive processes, extract and process data, and integrate intelligent solutions. From backend systems to complete web applications, I deliver reliable and efficient solutions tailored to project needs.

Hello everyone, I’m a passionate and reliable software engineer with over 8 years of professional experience, specializing in backend web development and data-driven solutions. My core strength lies in building robust, scalable, and maintainable applications using Django and Python. Whether it’s a custom SaaS dashboard, a dynamic e-commerce backend, or an admin tool for managing large datasets. I can architect and deliver high-performance solutions. ✔ Web Scraping & Data Automation: I've deep expertise in web scraping and data automation, using tools like: - Selenium (for dynamic content and JavaScript-heavy pages) - Beautiful Soup & Requests (for fast, efficient HTML parsing) - Scrapy (for large-scale, structured crawling) - Integration of scraped data into databases, dashboards, or APIs I've built scraping tools for price tracking, lead generation, news monitoring, job listing aggregation, and competitor research all with speed, reliability, and error handling in mind. - Data Analysis & Visualization: I regularly work with: - Pandas for data cleaning, manipulation, and transformation - Data visualization tools to present insights clearly - Building interactive dashboards and reports for real-time business decisions From raw data to meaningful charts, I'll help clients uncover patterns, trends, and actionable insights. ✔E-Commerce & Custom Platforms I’ve built and maintained backend systems for e-commerce platforms, including: - Product catalogs & inventory management - Secure checkout processes - Order tracking, payment gateway integration (Stripe, PayPal, etc.) - Admin dashboards and customer portals I’m also experienced in integrating third-party APIs, handling user authentication, and deploying to cloud platforms like AWS and Heroku. ✅ Why Work With Me? - 8+ years of proven software development experience - Focus on clean, well-documented, and scalable code - Quick response times and clear communication Always on time and results-driven: Familiar with full project lifecycle: from planning to deployment & QA Whether you're a startup building an MVP, a business needing automation, or a team looking for a skilled Django backend developer. I'm here to help! Just ping me and I'm at your service! Best, Saad

𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 | $𝟭𝟬𝟬𝗞+ 𝗘𝗮𝗿𝗻𝗲𝗱 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 I help businesses turn messy data and manual workflows into clean, automated, AI-powered systems. With 7+ years of engineering experience focused on Claude AI, document intelligence, and production-grade data pipelines, I build infrastructure that lets companies scale without scaling headcount. 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱 𝗖𝗹𝗮𝘂𝗱𝗲 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 - Anthropic Claude API integrations - Multi-step AI agents & agentic workflows - RAG systems with LangChain & vector databases - Prompt engineering, tool use, function calling 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲 - OCR + LLM extraction from contracts, forms, receipts, scanned PDFs - Document classification & hierarchical taxonomies - Layout analysis & structured data extraction - On-premise RAG over PDF collections 𝗗𝗮𝘁𝗮 𝗣𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀 & 𝗘𝗧𝗟 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀 - Apache Airflow orchestration at 350+ scraper scale - Spark, PySpark, Kafka for streaming & batch - Snowflake, Databricks, AWS Glue, dbt - Multi-tenant ETL with 95%+ success rates 𝗣𝗿𝗼𝗰𝗲𝘀𝘀 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 - n8n, Make, Zapier for end-to-end workflow automation - LLM-powered chatbots (Shopify, Amazon SP-API, HubSpot) - Webhook orchestration & REST API integration - Custom Python automation for repetitive operations 𝗖𝗹𝗼𝘂𝗱 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 - AWS Lambda, S3, Glue, EC2, Bedrock, Step Functions, ECS - CI/CD pipelines with automated testing & rollback - Docker & Kubernetes for containerized services - HIPAA, SOC 2, GDPR-compliant deployments 𝗥𝗲𝗰𝗲𝗻𝘁 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 - $1.2M+ business impact through AI-driven automation - 350+ daily scrapers via Apache Airflow with 95%+ success rate - 24/7 automated Shopify + Amazon refund chatbot via n8n + LLM - 80% reduction in manual calls via NLP voice agent - 95%+ data accuracy across HIPAA-compliant healthcare pipelines 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 Clear communication, realistic timelines, clean code, and finished products that work in production. Most clients come back; many become long-term partners. Got a slow workflow, a pile of documents that needs structure, or an AI idea you want shipped? Send a quick message and I'll respond within a few hours. Let's connect.