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=========About Me========= AI and Data Engineer with experience designing and deploying end-to-end data and machine learning pipelines on AWS. Skilled in integrating LLMs, building RAG systems, and optimizing AI workflows for real-world analytics. Passionate about scalable architectures, automation, and data-driven decision-making. Focused on delivering reliable, production-ready AI solutions that enhance business intelligence and operational efficiency. =========Services========= I offer specialized support in data science and machine learning tasks, tailored to individual and business needs. My focus is on delivering actionable insights and robust predictive solutions: Data Analysis & Visualization: Exploratory data analysis (EDA), data cleaning, and visual storytelling using Python. I help you understand your data and make informed decisions through clear, compelling visualizations. Machine Learning Modeling: Development and evaluation of supervised and unsupervised learning models, including classification, regression, and clustering. I assist in model selection, training, validation, and performance analysis. Data Preprocessing: Handling missing data, feature engineering, scaling, and encoding to prepare raw data for modeling. I ensure that datasets are clean and optimized for accurate predictions. Sentiment & Text Analysis: Natural Language Processing (NLP) for extracting insights from text data, including sentiment analysis, keyword extraction, and topic modeling using tools like NLTK and Hugging Face Transformers. Data Pipeline Support: Design and implementation of basic ETL pipelines and automation scripts for data collection and transformation, enhancing the efficiency of data workflows. Model Interpretation & Reporting: Use of metrics like accuracy, F1-score, confusion matrix, and SHAP values to explain model outputs. I provide clear, concise reports to communicate findings to both technical and non-technical audiences.

I fix broken pipelines, optimize slow queries, and resolve cloud deployment issues. If your dashboards stopped refreshing, your ETL jobs are failing, or your cloud environment is acting up, I can jump in quickly and help stabilize it. I’m a hands-on Cloud & Data Engineer working across Azure, AWS, GCP, and Snowflake. Most of my work involves troubleshooting production environments, optimizing performance, improving reliability, and helping teams get their data platforms running properly again without unnecessary complexity. My core stack includes: • Power BI, DAX & operational reporting • SQL performance tuning (PostgreSQL, Azure SQL) • Snowflake optimization & architecture • Python & ETL/ELT pipelines (ADF, Synapse, Databricks) • Azure/AWS infrastructure troubleshooting • CI/CD, AKS & Kubernetes deployments I also bring 17 years of experience in cloud architecture and enterprise data engineering. I’ve reduced Azure infrastructure costs by 30%, designed analytics platforms supporting 2,000+ retail locations, and worked with environments processing millions of transactions. I don’t just patch issues temporarily — I focus on scalable, production-ready solutions that remain maintainable long-term. Available for: • Data pipeline troubleshooting & ETL engineering • Power BI fixes & DAX optimization • Snowflake & SQL performance tuning • Azure/AWS deployment support • Cloud cost optimization & infrastructure improvements

I transform fragmented data into automated, high-performance systems. With over 4 years of experience, I specialize in bridging the gap between complex data architecture and user-friendly business tools. All of this in your google workspace enviroment. What I deliver: 1. Custom Business Apps: Building scalable No-Code solutions using Google AppSheet 2. End-to-End Automation: Connecting your ecosystem (WhatsApp, Meta API, Wix) via n8n, google appscripts and AI to eliminate manual tasks. 3. Big Data Infrastructure: Migrating your app to a SQL/BigQuery data storage for high-volume data processing and better app performance. 4. Visual Intelligence: Creating automated Looker Studio dashboards that turn raw numbers into actionable strategy. 5. Chatbot: Designing and deploying WhatsApp Business API bots that integrate directly with your internal apps. ----- Transformo datos fragmentados en sistemas automatizados de alto rendimiento. Con más de 4 años de experiencia, me especializo en cerrar la brecha entre arquitecturas de datos complejas y herramientas empresariales intuitivas; todo esto integrado totalmente en su entorno de Google Workspace. Mis soluciones incluyen: 1 Aplicaciones Empresariales a Medida: Desarrollo de soluciones No-Code escalables utilizando Google AppSheet. 2. Automatización Integral (End-to-End): Conexión de su ecosistema (WhatsApp, Meta API, Wix) mediante n8n, Google Apps Script e IA para eliminar tareas manuales. 3. Infraestructura de Big Data: Migración de aplicaciones a almacenamiento en SQL/BigQuery para el procesamiento de altos volúmenes de datos y la optimización del rendimiento. 4. Inteligencia Visual: Creación de tableros automatizados en Looker Studio que transforman números brutos en estrategias accionables. 5. Chatbots Inteligentes: Diseño y despliegue de bots de WhatsApp Business API que se integran directamente con sus aplicaciones internas.

Hi, Thank you for checking out my profile. My name is Sandra, and I am native Spanish speaker with fluency in English. I am an Industrial Engineer with over nine years of experience in Human Resources. However, since 2015, I have been working as a Coworker for two communities. My passion is helping others, and both HR and Volunteering led me to gain experience and skills I could use for a position in a remote job. Working from home is a path that I wish to explore. I am skilled at administrative tasks, I am organized and willing to obtain new knowledge If you feel I have the potential that you are looking in for a candidate, then please do not hesitate to contact me to arrange an interviwe Thank you for taking the time to review my application. My skills: -Reliable -Scheduling -Responsible -Flexible -Quick learner -Familiar with Canva, Zoom If you feel I have the potential that you are looking in for a candidate, then please do not hesitate to contact me to arrange an interview.

🚀 Hello! Welcome to my profile. I'm a dedicated Azure Data Engineer with a robust skill set in Azure Data Factory, Synapse Analytics, Python, and SQL. With 4 years in the industry, I specialize in transforming complex data challenges into streamlined, efficient solutions. 💡 My Expertise: 🔷 Azure Data Factory & Synapse Analytics: I have experience in setting up and automating data workflows using Azure Data Factory, ensuring smoothly data integration and transformation. My proficiency in Synapse Analytics allows me to provide scalable and high-performance data solutions, adapting warehouse design to fit your specific needs. 🔷 Python & SQL Programming: Fluent in both Python and SQL, I'm adept at writing clean, efficient code to manage and analyze data. Whether it's data manipulation, extraction, or complex query writing, my programming skills are at your service. 🔷 Data Engineering Solutions: My focus is on delivering high-quality, scalable data solutions. Whether you're a small business or a large enterprise, I can handle data of any size and complexity, providing insights that drive strategic decisions. 🔷Problem-Solving & Innovation: I bring a problem-solving mindset to every project, always looking for the most innovative and efficient ways to meet your data engineering needs. 🔷Communication & Collaboration: I believe in clear, continuous communication and collaboration to ensure that your project's needs are met precisely and efficiently. Why Choose Me? ✅ Quality and Precision: My commitment to quality and precision in data engineering will ensure that your projects are not just completed, but mastered. ✅ Timely Delivery: I understand the importance of deadlines and strive to deliver all projects on time without compromising quality. ✅ Client Satisfaction: Your satisfaction is my top priority. I'm here to provide solutions, offer advice, and work with you every step of the way.. Let's turn your data into your most valuable asset. I'm excited to work with you and bring your data projects to life!

★ Top-Rated ★ Google Certified I bring 5+ years of experience in technical analytics — including 4 years working inside a global media agency and a large multinational corporation, plus 2 years as a Top-Rated freelancer on Upwork supporting international clients. Technical Analytics & Tracking Specialist Tech stack: GA4 · GTM (Web & Server-side) · Firebase · BigQuery · Looker · Looker Studio Services: Web & App Tracking · Ecommerce Tracking · Debugging · Attribution Fixes · Server-side Tracking · Training · Documentation · Developer Guides I specialize in building scalable measurement frameworks and fixing complex tracking ecosystems involving paid media, ecommerce, CRMs, and data warehouses. My expertise includes GA4 architecture, Google Tag Manager (web + server-side), ecommerce tracking, UA to GA4 migrations, BigQuery validation, and advanced Looker Studio reporting. I’m particularly strong at diagnosing discrepancies, cleaning legacy implementations, and restoring trust in conversion data. I’ve supported teams across Banking, Real Estate, Retail, Education, SaaS, and Ecommerce environments — collaborating with marketers, developers, and leadership teams. Beyond implementation, I train teams in GA4 and Firebase, create structured documentation, and develop developer-ready tracking guides to ensure long-term scalability. If you need clean tracking, reliable data, and a scalable analytics foundation — let’s build it properly.