Tired of juggling spreadsheets, manual reports, and disconnected systems? Managing your business shouldn’t feel like solving a puzzle every day. Whether you run a factory, retail shop, or service company, you deserve a system that keeps everything organized, accurate, and connected. I help business owners, manufacturers, and retailers build powerful Microsoft Access solutions that automate workflows, improve accuracy, and save hours of manual work. 🔍 Why most businesses struggle: Data scattered across Excel sheets and departments. No link between production, sales, HR, and accounting. Reports take hours to prepare — and still miss key insights. Stock or payroll errors cause big financial losses. 💡 Here’s how I solve it: I design and develop complete Microsoft Access systems tailored to your business workflow: ERP Systems: full control from raw materials → production → packaging → delivery → invoicing. Point of Sale (POS): sales, inventory, customers, suppliers, and real-time profit tracking. HR Systems: attendance, payroll, vacations, performance, and employee records. Maintenance Management: machine alerts with barcode or touchscreen input. Accounting Modules: journal entries, tax calculation, and financial statements. 🧠 My focus is on simplicity and reliability — every form, report, and query is designed for speed and accuracy. I also integrate Access with Excel, barcode readers, and SQL Server for maximum flexibility. 👨‍💻 About Me: With 25+ years of experience in Microsoft Access programming, I’ve built end-to-end systems for textile factories, production companies, shops, and service providers. I handle everything — from database structure and VBA automation to reporting and interface design. 🚀 My goal is simple: To turn your daily operations into a smooth, automated system that saves time, reduces errors, and keeps your business fully under control. Let’s discuss your project — together, we’ll transform your data chaos into a smart, powerful Access solution.

I have multiple publications in machine learning (neural networks, fuzzy logic) where applications have been created and tested in languages such as python and sql. Professional experiences involve a variety of data manipulations and reporting in sql, python and vba (excel). My professional passion lies in mathematics, data science, machine learning and AI, but I also enjoy routine data manipulation and transformation. I would encourage you to review my previous jobs here on Upwork for more details on my capabilities.

Lead specialist data engineering, data science, cloud, and AI team at Agility.AI Act as lead architect on every engagement — direct technical ownership, not delegated oversight Vetted delivery team executes behind the architecture; no large-consultancy overhead, no solo-generalist risk 100% Job Success Score | Top Rated 200+ data engineering projects | 200+ AI/ML implementations | 80+ cloud migrations delivered ⭐ DATA ENGINEERING Pipeline architecture, ELT, real-time streaming — Snowflake, Databricks, dbt, Apache Kafka, Apache Spark Warehouse/lakehouse design — Snowflake, BigQuery, Redshift, Synapse — 60-80% query runtime reduction ERP/CRM integration — SAP, Oracle, Dynamics, Salesforce — with master data management and full lineage 500TB+ processed daily | 99.9% uptime | 6-10 weeks kickoff to production ⭐ DATA SCIENCE & MACHINE LEARNING Predictive analytics — time-series forecasting, demand modeling, churn prediction (scikit-learn, XGBoost, custom neural networks) Deep learning, NLP (classification, entity extraction, sentiment analysis), computer vision (object detection, OCR, quality inspection) MLOps — model monitoring, automated retraining, drift detection (SageMaker, Azure ML, Vertex AI) 85% average model accuracy across 50+ production ML models | ROI within 8-12 weeks ⭐ CLOUD & INFRASTRUCTURE MIGRATION On-prem to cloud (AWS, Azure, GCP) and cloud-to-on-prem repatriation — same team, either direction Database, ETL, warehouse, storage, and application migration — zero data loss, phased cutover, parallel-run validation Terraform IaC, Kubernetes, CI/CD — reproducible, auditable environments 80+ migrations | zero data loss | 40-60% infrastructure cost reduction | 99.9% post-cutover uptime ⭐ AGENTIC AI & LLM SYSTEMS Production multi-agent systems — LangChain, LangGraph, CrewAI, AWS Bedrock RAG pipelines with hallucination prevention and enterprise compliance checkpoints 50K+ daily queries at sub-300ms latency — measured in production ⭐ ENTERPRISE BI & POWER PLATFORM Governed Power BI ecosystems — RLS, Fabric Lakehouse, DirectLake Board-level reporting accuracy standards ⭐ PROVEN RESULTS Manufacturing: 88% forecast accuracy | 40% safety stock reduction | SAP/Siemens MES/Oracle SCM integration Healthcare: 95%+ diagnostic ML accuracy | 85% cardiac risk prediction (30-day advance) | 78% incident reduction across 40+ EMR systems FMCG: Full on-prem to Azure migration | 200+ stored procedures | 1,000+ SSRS to Power BI | 40% cost reduction | zero data loss Insurance: 500+ daily statements automated | 95% manual entry reduction | 70% claims latency reduction Pharmaceuticals: 70% cost reduction | 100% pipeline automation | 15+ global clients Retail: 20% sales uplift | 25% stockout reduction ⭐ WHO WE WORK WITH Organizations with legacy infrastructure outgrowing its current platform — cloud-bound or repatriating Organizations with data fragmented across systems AI initiatives funded but stuck in prototype Migration, model, or compliance requirements needing an accountable architect, not just a spec-writer ⭐ NEXT STEP 30-minute scoping call Fast start once fit is confirmed

With over 18 years of unwavering expertise in system development and database management, I am a seasoned Application and SQL Developer ready to bring my wealth of knowledge to your projects. My skill sets encompass a dynamic range of technologies, including the .Net Framework, VB.NET, C#, MSSQL, WinForms, WPF, .Net MAUI, Python, VBA, Crystal Report, and Syncfusion. Throughout my career, I have demonstrated an exceptional ability to craft efficient and robust solutions tailored to unique business requirements. Proficient in utilizing the .Net ecosystem, I have developed and maintained applications that seamlessly integrate intricate backend functionalities with intuitive user interfaces. My mastery of SQL empowers me to design and optimize complex database structures, ensuring data integrity and swift retrieval. Additionally, my proficiency extends to diverse domains, from creating responsive desktop applications using WinForms and WPF, to embracing the latest trends such as .Net MAUI for cross-platform development. Furthermore, my familiarity with Python and VBA enables me to implement versatile and automated solutions, while my experience with Crystal Reports and Syncfusion ensures comprehensive reporting and data visualization capabilities. I am not just a developer, but a problem solver who thrives in collaborative environments and is dedicated to delivering excellence. My track record of successful project implementations, coupled with my deep understanding of software lifecycles, positions me as a valuable asset in transforming ideas into reliable, high-quality applications. I am excited to contribute my expertise to your team and create solutions that drive innovation and success.

I am a Top Rated Plus freelancer on Upwork and ranked in the top 3% of all freelancers world-wide in my ability to develop reliable Power BI dashboards, Microsoft Fabric data platforms, and automated reporting systems that leadership can trust. I have provided support services to 90+ clients, made $500K+ on Upwork, and received 50+ five-star ratings for helping businesses to turn messy, disconnected and complex data into clear dashboards, scalable data models and reporting environments that are ready for decision-making. I have more than 14 years of experience in Business Intelligence, Data Analytics, SQL, and Microsoft technologies, and specialize in Power BI and Microsoft Fabric solutions that are not limited to just a visualization. My interests are in establishing the solid groundwork for the reporting system: clean data models, optimized SQL layers, reliable pipelines, solid DAX logic, row-level security, and dashboards providing answers to real business questions. When people want me to assist them, they typically ask me questions such as: Why are our Power BI reports slow, unreliable or difficult to maintain? How to make our reporting model scalable? How to transition to a structured Power BI or Fabric reporting system? How can we tie systems such as NetSuite, QuickBooks, Dayforce, Shopify, Klaviyo and Dynamics 365 together in a single report layer? How to provide leadership with accurate KPIs without manual copy/paste each week? How do we get the reporting, alerts, approvals and data refreshes automated throughout the business? Being a Power BI and Fabric expert, I lead organisations to create reporting systems that are fast, structured and scalable, and not just report dashboards that will impress the first day of use. Core Expertise: ✔️ Power BI & DAX Executive dashboards, KPI reports, financial reporting, operational analytics, HR dashboards, sales reporting, complex DAX measures, row-level security, star schema design, report optimization, and semantic model cleanup. Bulkier data sets and reporting structures have been reimagined to make dashboards faster, lighter and easier to maintain. ✔️ Microsoft Fabric & SQL Warehouse Data pipelines (end to end), SQL warehouse, stored procedures, fact and dimension tables, reporting layer, dataflows, data structures in Lakehouse or Warehouse and company-wide datasets. Establish organized structures to facilitate reporting uniformity among teams, departments, and locations. Optimize the data structure and its performance for the application.Optimize the data structure and application performance. Fresh star schemas, optimized SQL queries, repeatable reporting layers, better refresh performance, smaller dataset size, and enhanced data governance. My mission is to ease your reporting environment to scale, audit and maintain. ✔️ Power Automate Automating workflows, notifications in Teams, Adaptive Cards, scheduling jobs, approval flows, API calls, email notifications, and report automation. If you still manually have to move data between systems, I can usually get this automated for you. ✔️ Power Apps Inside apps to enter, approve, inspect, monitor operations, and replace paper or manual spreadsheets. Develop apps that interface with SQL, SharePoint, Dataverse, and other business systems. ✔️ Integrations & APIs Experience seamless integration of data from NetSuite, QuickBooks, Dayforce, Klaviyo, Shopify, Dynamics 365, REST APIs, Excel, SharePoint, SQL databases and more. I can normally import that data into your reporting system if it's available via an API, connector, database, or export. Industries I have worked across include energy, oil & gas, banking, pharma, manufacturing, e-commerce, medical devices, HR analytics and operational reporting amongst others. 💬 Client Feedback ⭐⭐⭐⭐⭐ I have to say “Paulo has been an essential partner in developing our Power BI reports. His technical skills and deep understanding of data visualization allowed us to turn complex data into clear, insightful, and user-friendly dashboards. He was responsive to feedback, quick to implement changes, and often went above and beyond to suggest improvements that added real value to the final product.” I'm in Brazil (GMT-3) and overlap with US business time. I have the opportunity to work with American and international clients on a daily basis and, as such, I do not ever have to worry about communication, documentation, or business context. Your situation is too complex to deal with on your own, so if you're looking for a Power BI, Microsoft Fabric, or reporting automation partner who can help, reach out to me and give me a quick description of your situation. I will be honest about what I'm not good at and what is the next best steps.

I help companies modernize, automate, and scale their .NET & Azure environments. My focus: stable infrastructure, fast deployments, reduced cloud costs, and clean, reliable code. If you need someone who can jump into an existing system, fix issues quickly, modernize your architecture, or build new cloud automations — I can help. 🔧 What I Can Do for You Azure Architecture & Cloud Infrastructure CI/CD Pipelines (Azure DevOps, GitHub Actions) Automation with PowerShell, Terraform, and pipelines .NET Development (API, MVC, WebForms, Backend Services) Azure App Services, Functions, SQL, Storage, VNETs Migrations, refactoring, optimization Cloud cost optimization & performance improvements Kubernetes / Containerized Deployments (where needed) 🏆 Why Clients Work With Me Deep hands-on experience with Azure + .NET + DevOps Ability to fix complex issues quickly and clearly Strong communication + proactive updates Clean, scalable, well-documented work Certified in Azure Fundamentals (AZ-900) Focus on delivering measurable improvements (speed, cost, stability) 📌 Sample Results I Deliver Reduced deployment times by 70% through optimized pipelines Improved API performance by 2–4x using caching + cloud tuning Cut Azure cost by 30–50% with resource optimization & automation Migrated legacy .NET apps to Azure with zero downtime 💬 Let’s Work Together I am available for: ✔ Long-term support ✔ Part-time engagements ✔ Architecture consulting ✔ One-off fixes and urgent issues ✔ Complete cloud modernization projects ➡️ Send me a message and I will provide a quick assessment or a free 15-minute consultation. Looking forward to helping you improve and scale your cloud environment!

An experienced Oracle Apex expert with industry experience over a decade; proficient in SQL, PL/SQL, APEX (Oracle Web Application), Apex Forms / Reports and Analytics. A Certified Oracle APEX Professional, specializing in developing Logistic Management Systems and HR Management applications for Public sector and other Enterprise clients. Automation of projects demanding a thorough understanding of hundreds of processes. My Experties involves automating these processes, fostering collaboration, and leveraging data generated by automation to support decision-making and future forecasting. CERTIFICATIONS: ✅Oracle Data Management Associate ✅Oracle Autonomous Database and AI Machine Learning Associate ✅ORACLE Enterprise Analytics Professional ✅ORACLE APEX Cloud Developer Professional ✅ORACLE Cloud Data Science Professional Professional services include, following: ✅Oracle APEX Certified Professional ✅Full Stack Development ✅Back End Developer ✅Oracle Database / Performance Tuning ✅E-Business Suite ✅Techno Functional Expert ✅Senior OAF Developer ✅XML Publisher / PLSQL Functions/ ✅Database Database config Expertise with 11g 19c and seamless data integration ✅Oracle Apex database ORDS with tomcat SSL and Jasper Apex Office Print

As a freelance developer, I am a specialist in Microsoft Office applications with over 25 years of experience including macro coding with VBA (Visual Basic for Applications). I am also skilled in database design and development with Microsoft Access or SQL Server, and I have very recent experience with Google sheets data management and scripting with Apps Script. Working independently or with your team, I can help you with tasks such as Access database design and development or maintenance, Microsoft Office and Google scripting and automation, creating or modifying spreadsheets with formulas and formatting, and Microsoft Word document organization, formatting and scripting. I can perform conversions such as PDF to Excel with Python and web scraping using Python and libraries such as Beautiful Soup. I am a skilled technical writer and will fully document the work I do, including user instructions, when required. My project portfolio below includes three Access database projects, a Google Sheets project with scripting, two projects with automation for both Excel and Word, two additional Excel and another Word automation project, an Excel design project, an XML conversion project, and a web scraping project. My extensive IT experience includes .NET software development for Windows servers and desktops and SQL databases. In my most recent full time position, I designed and developed an application using OCR to locate key information such as party names on printed real estate and other legal documents handled by city and county clerks. Now in use by many customers, the application facilitates automatic verification of the names submitted electronically with the documents or keyed by a data entry person. The development language was C# and the database is SQL Server running as a service under Windows. The code reads XML output from an OCR process and uses extensive regular expression coding to locate information and format it for database storage. A project in my portfolio below includes automation with Excel of the regression testing for this application. I have developed WPF/XAML desktop applications with C# and with WinForms using C# and VB. I also have developed web applications using JavaScript, AJAX, HTML and CSS with backend database access to SQL server coded using C#. I developed one application with React, a copy of the popular Wordle game, using an external API. Throughout my career I have leaned and applied skills such as software architecture, object oriented design and development, database design, technical writing, and problem solving. If you hire me for your project, I promise that I will always pay close attention to the details and accuracy to make sure that the result meets your requirements. Before starting a project, I will listen or read carefully to make sure I understand those requirements, and my written and spoken communication with you will be in clear and precise English. My hourly rate quoted in this profile is negotiable. If my skills are a match for your needs please send me an invitation and I will respond right away.

If you’re looking for a specialist who can build end-to-end data solutions—from ingestion to dashboards to AI/ML insights—you’re in the right place. I’m a Senior Data Engineering & BI Expert with 12+ years of experience delivering scalable data systems, modern ETL pipelines, cloud architectures, and business-ready dashboards for global clients. I combine engineering + analytics + AI/ML to deliver solutions that are fast, reliable, and cost-efficient. What I Can Do for You 1. Data Engineering (Azure & AWS) Build scalable data pipelines (ADF, Glue, Lambda, EC2, S3, Snowflake, Redshift) Design modern data lake / data warehouse architectures Create optimized SQL models, DWH schemas, data marts Setup cost-efficient & governed data systems 2. ETL Development (Pentaho PDI Specialist) Complex ETL workflows (Pentaho Jobs + Transformations) API integrations, database migrations, automation scripts Error handling, logging framework, performance tuning 3. Business Intelligence Dashboards Power BI dashboards with row-level security & DAX optimization Tableau stories for executives KPI frameworks, forecasting dashboards, data modeling 4. AI/ML-Enabled Analytics Data preprocessing & feature engineering Predictive models (classification, forecasting, clustering) Integration of ML outputs into BI dashboards End-to-end automated ML pipelines 💼 Industries I’ve Worked With Hospitality • Retail • Healthcare • SaaS • Finance • Startups • Manufacturing 🧩 Why Clients Like Working With Me ✔️ End-to-end owner: From requirement → architecture → development → deployment ✔️ Fast delivery with clean, scalable, future-ready designs ✔️ Business-focused, not over-engineered or overpriced ✔️ Strong communication + documentation ✔️ Cost-optimized cloud solutions (save 30–60% cloud cost) 🛠️ Tech Stack Cloud: Azure, AWS, EC2, Lambda, Glue, ADF, Snowflake, Redshift ETL: Pentaho PDI, Python ETL, Azure Data Factory Databases: SQL Server, MySQL, Oracle, PostgreSQL Dashboards: Power BI, Tableau AI/ML: Python, Scikit-Learn, Pandas, NumPy Others: Git, Linux, Automation Frameworks 📩 Let’s Work Together Whether you need a data warehouse, ETL revamp, cloud migration, dashboard development, or AI/ML solution, I can help you deliver it fast, clean, and professionally. Send me a message—happy to discuss your project and propose a solution.

I'm a data analytics professional with deep expertise in building dynamic, visually compelling dashboards using Power BI. I specialize in transforming data from multiple Excel sources, automating refreshes, and designing time-based KPIs that offer clear insights across weekly, monthly, quarterly, and yearly periods. I’ve delivered impactful data solutions for global organizations such as Nestlé and Mars, helping them visualize critical metrics and streamline performance tracking. Proficient in DAX, Power Query, and SQL, I create scalable, user-friendly reports that empower decision-making and align with strategic business goals. With a strong foundation in supply chain analytics, I deliver actionable insights and drive continuous performance improvements across complex functions.