My professional career has been running on purely oracle based. I’m engaged with Desktop/Online Application development with oracle forms 6i,10g & 11g with Oracle Database version 9i, 10g, 11g,12c & 19c Since year 2006. I started working with Oracle Apex since version 4. End-user support is built-in from the beginning. I have excellent troubleshooting & debugging skills developed over the years. I am a patient, thorough person with high attention to detail. I can provide consulting, software development, SQL, PL/SQL scripts, testing/debugging and other services ranging from short one-hour jobs, to full-time every day works, to long-term cooperation and support. You can check my oracle forum profile, community.oracle.com/people/HamidHelal Thank you for visiting my profile and I look forward to hearing from you.

I am a highly skilled Data Engineer and Data Analysis & Visualization Expert with 12+ years of experience designing, developing, and optimizing data-centric solutions, dashboards, and automated workflows. My core expertise lies in building robust data pipelines, automating data processes, and transforming raw data into actionable insights through intuitive visualizations. I’ve developed and deployed interactive dashboards using tools like Google Data Studio, Oracle APEX, Mode Analytics, Klipfolio, and Chartio—integrating data from diverse sources such as Google BigQuery, PostgreSQL, SQL Server, MySQL, and MongoDB. In parallel, I’ve built scalable data pipelines, RESTful APIs, and end-to-end automation systems using Python (Flask, FastAPI), enabling real-time data processing and analytics. Key Expertise: ✔ Data Engineering & Automation (ETL/ELT, Airflow, Python, Pandas, NumPy) ✔ Data Analysis & Visualization (Google Data Studio, Power BI, Tableau, Oracle APEX) ✔ Web Scraping & Workflow Automation (Python, BeautifulSoup, Selenium, Scrapy) ✔ Database Development & Optimization (SQL, PL/SQL, MySQL, PostgreSQL, BigQuery) ✔ API Development & Integration (Flask, FastAPI, RESTful Services) ✔ Cloud & Infrastructure (Google Cloud Platform, AWS, Linux Server Administration) ✔ Scalable System Design & Performance Optimization With a strong foundation in data architecture and automation, I focus on delivering solutions that are scalable, maintainable, and aligned with business objectives. Let’s connect to explore how I can help streamline your data operations and empower data-driven decision-making. 🚀

⭐ 𝙏𝙧𝙪𝙨𝙩𝙚𝙙 𝙗𝙮 𝙜𝙡𝙤𝙗𝙖𝙡 𝙗𝙧𝙖𝙣𝙙𝙨 𝙞𝙣𝙘𝙡𝙪𝙙𝙞𝙣𝙜 𝙇'𝙊𝙧é𝙖𝙡, 𝙌𝙪𝙖𝙣𝙩𝘽𝙤𝙭, 𝙖𝙣𝙙 𝘿𝙞𝙜𝙞𝙢𝙞𝙣𝙙, 𝙙𝙚𝙡𝙞𝙫𝙚𝙧𝙞𝙣𝙜 𝙙𝙖𝙩𝙖-𝙙𝙧𝙞𝙫𝙚𝙣 𝙨𝙤𝙡𝙪𝙩𝙞𝙤𝙣𝙨 𝙩𝙝𝙖𝙩 𝙞𝙢𝙥𝙧𝙤𝙫𝙚 𝙧𝙚𝙥𝙤𝙧𝙩𝙞𝙣𝙜, 𝙛𝙤𝙧𝙚𝙘𝙖𝙨𝙩𝙞𝙣𝙜, 𝙖𝙣𝙙 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨 𝙙𝙚𝙘𝙞𝙨𝙞𝙤𝙣-𝙢𝙖𝙠𝙞𝙣𝙜. 🐍 Senior Data Scientist | Python Developer | Data Analyst | Machine Learning Engineer 📊 Power BI | Tableau | Looker Studio | Dashboard Development | Business Intelligence 🥇 Microsoft Certified Power BI Data Analyst (PL-300) With 6+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, I help businesses transform raw data into actionable insights through 𝐢𝐧𝐭𝐞𝐫𝐚𝐜𝐭𝐢𝐯𝐞 𝐝𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬, 𝐩𝐫𝐞𝐝𝐢𝐜𝐭𝐢𝐯𝐞 𝐚𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬, 𝐦𝐚𝐜𝐡𝐢𝐧𝐞 𝐥𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐦𝐨𝐝𝐞𝐥𝐬, 𝐚𝐧𝐝 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐞𝐝 𝐝𝐚𝐭𝐚 𝐩𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬. I've successfully delivered solutions for global organizations including 𝐋'𝐎𝐫é𝐚𝐥, 𝐃𝐢𝐠𝐢𝐦𝐢𝐧𝐝, 𝐚𝐧𝐝 𝐐𝐮𝐚𝐧𝐭𝐁𝐨𝐱, helping stakeholders make faster, data-driven decisions. 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐰𝐢𝐭𝐡: ✅ 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞 & 𝐃𝐚𝐭𝐚 𝐕𝐢𝐬𝐮𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧 ➠Power BI Dashboards ➠Tableau Dashboards ➠Looker Studio Dashboards ➠Executive & KPI Dashboards ➠Interactive Reports ➠DAX & Power Query ➠Data Storytelling ✅ 𝐃𝐚𝐭𝐚 𝐒𝐜𝐢𝐞𝐧𝐜𝐞 & 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 ➠Python (Pandas, NumPy, Scikit-learn) ➠Predictive Analytics ➠Forecasting & Time Series Analysis ➠XGBoost & Machine Learning Models ➠Customer Segmentation ➠Clustering & Classification ➠Feature Engineering ✅ 𝐃𝐚𝐭𝐚 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 & 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 ➠SQL (SQL Server, MySQL, PostgreSQL) ➠ETL Pipeline Development ➠Data Cleaning & Data Wrangling ➠Data Modeling ➠Data Warehousing ➠BigQuery ➠Snowflake ➠Azure Databricks ✅ 𝐌𝐚𝐫𝐤𝐞𝐭𝐢𝐧𝐠 & 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 ➠Google Analytics ➠Marketing Performance Dashboards ➠Sales Analytics ➠Financial Reporting ➠Customer Analytics ➠Business Performance Reporting ➠Automated Reporting Solutions 𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐦𝐞: ✔ Build scalable dashboards that executives actually use. ✔ Automate manual reporting to save hours every week. ✔ Develop accurate forecasting and machine learning models for smarter business planning. ✔ Transform messy, complex datasets into clean, reliable, and actionable insights. ✔ Deliver clean, well-documented code, clear communication, and on-time project completion. Whether you need a 𝑷𝒐𝒘𝒆𝒓 𝑩𝑰 𝑫𝒂𝒔𝒉𝒃𝒐𝒂𝒓𝒅, 𝑻𝒂𝒃𝒍𝒆𝒂𝒖 𝑫𝒂𝒔𝒉𝒃𝒐𝒂𝒓𝒅, 𝑷𝒚𝒕𝒉𝒐𝒏 𝒅𝒂𝒕𝒂 𝒂𝒏𝒂𝒍𝒚𝒔𝒊𝒔, 𝑺𝑸𝑳 𝒅𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕, 𝒎𝒂𝒄𝒉𝒊𝒏𝒆 𝒍𝒆𝒂𝒓𝒏𝒊𝒏𝒈 𝒔𝒐𝒍𝒖𝒕𝒊𝒐𝒏, 𝑬𝑻𝑳 𝒑𝒊𝒑𝒆𝒍𝒊𝒏𝒆, 𝑺𝒏𝒐𝒘𝒇𝒍𝒂𝒌𝒆, 𝑨𝒛𝒖𝒓𝒆 𝑫𝒂𝒕𝒂𝒃𝒓𝒊𝒄𝒌𝒔, 𝑩𝒊𝒈𝑸𝒖𝒆𝒓𝒚, or an end-to-end analytics solution, I can help turn your data into measurable business value. 𝐋𝐞𝐭'𝐬 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐚𝐧𝐝 𝐛𝐮𝐢𝐥𝐝 𝐚 𝐝𝐚𝐭𝐚 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧 𝐭𝐡𝐚𝐭 𝐝𝐫𝐢𝐯𝐞𝐬 𝐫𝐞𝐬𝐮𝐥𝐭𝐬.

💸 100% money back gurantee if you don't like my work. ⚡ An Energetic Lead/Sr. Microsoft Certified Software Engineer having 9+ years of experience developing robust code for high-volume business applications and debuging complex logics using technologies i.e., ✔ C#, Vb.Net, Asp.net Core, MVC, Asp.net Webforms, WebApi, MicroServices, Jquery, Javascript, HTML, CSS, Bootstrap, SQL, T-SQL, Pl/SQL Oracle, Devexpress controls, SignalR, Azure, CosmosDb etc. ✔ AWS, Microsoft Azure, Google Cloud services, Docker, Hub Notifications, Azure Functions ✔ Familiar with AngularJS, ReactJs and VueJs ✔ Sendgrid, Twillio ✔ Payment Gateways, Stripe, Tipalti, Plaid Strong team builder, a leader having a high level of personal morals and integrity, results-oriented, self-motivated, and committed to the project's successful outcome. Ability to work under pressure and have worked with a professional Team

Senior Software Engineer with 12+ years of experience in microservice applications using Java, Spring Boot, Spring WebFlux, cloud native application with AWS and Azure. Strong problem-solving and analytical skills, overseeing the full software development lifecycle from design to deployment worked on Transportation, E-Commerce, and Banking domain.

I turn messy data into clear, decision-ready dashboards. From raw data to executive reporting, I build complete Business Intelligence solutions companies rely on daily. If you need dashboards that actually drive decisions, you’re in the right place. With 8+ years of experience in Power BI, SQL and enterprise data platforms, I help organizations design and implement end-to-end analytics solutions from data extraction and modeling to dashboards and cloud analytics. I work with startups, SMEs and enterprise teams to transform scattered data into reliable reporting systems that scale. What I can help you with: 📊 Power BI dashboard development Interactive dashboards and executive reporting Advanced DAX calculations and KPI design Financial, operational and performance analytics 🧠 Business intelligence and data modeling Star schema and scalable data models Data warehousing concepts and best practices Transforming Excel-based reporting into modern BI ☁️ Cloud and modern data stack Azure and Databricks analytics environments Data pipelines and ETL workflows Connecting multiple systems into one reporting layer 🗄️ Databases and SQL Efficient SQL queries and data transformation Data integration across multiple sources Performance-aware data extraction 📈 Data analysis and automation Python (Pandas) for data processing and automation Advanced Excel modeling and reporting KPI tracking and business performance monitoring 📊 Visualization tools Power BI, Tableau and Looker Studio Clear storytelling and executive-ready dashboards Certifications: Microsoft Power BI Data Analyst (PL-300) Databricks Certified Data Engineer Associate DAMA Certified Data Management Professional (CDMP) Microsoft Azure Fundamentals (AZ-900) Oracle Cloud Infrastructure Foundations How I work: Understand your business and data landscape Design the right data model and architecture Build reliable dashboards and reports Deliver documentation and knowledge transfer Let’s build dashboards your team actually uses!

I am a database / software engineer with 25 years of experience in SQL databases. I have extensive experience in designing and developing large databases from ground up, and I also have experience in remodeling and optimizing existing databases. I gained my experience working with nationwide databases. The system I am most proud of is the processing of healthcare records, which I designed and developed in 1998. It is still running on the same principals, consisting of 12.000+ million records, growing ~42 million monthly. In the last 25 years it was migrated from Oracle 7.3 to 8i, 10g, 11g and 12c, which provided a significant experience in migration. I gained additional experience in remodeling and optimizing while working again on healthcare data in 2014. On this project the record count is much smaller, ~400.000 monthly, but the algorithm is based on a 1200+ pages legislation. During the project I was able to reduce response time from minutes to seconds, often reaching a 60-fold reduction (e.g. 40 minutes down to 40 seconds). I also have 20+ years of experience with MySQL databases in a mission-critical production environment. I designed, developed and operated a PHP/MySQL based system in 5 different locations on Linux servers for 15 years. Lately I am working on Machine Learning projects using Python, Pandas, Numpy, Scikit-learn, OpenAI, Mistral.AI. etc. Looking forward to work together, from tutoring to full system development.

🚀 Build scalable data infrastructure 🛠 Automate data workflows 📊 Deliver actionable analytics I’m a certified data consultant specializing in Microsoft Fabric, Azure Databricks, SQL, Python, and Power BI. I help companies, from SaaS startups to global enterprises, turn complex, fragmented data into reliable, analytics-ready datasets that drive faster decisions and product growth. My work spans the full data lifecycle: designing architecture, building ETL pipelines, managing data lakes, and delivering secure reporting layers. I’ve delivered 20+ successful remote projects across logistics, maritime, energy, and real estate - from setting up 5+ Microsoft Fabric environments from scratch to managing infrastructure for Verizon AI’s 80M+ company dataset. Core Skills 📶 Data Engineering & Analytics: Microsoft Fabric, Azure Databricks, SQL Server, T-SQL, Python, PySpark, DAX, M ☁️ Cloud & Orchestration: Azure Data Factory, ADLS Gen2, Medallion Architecture, CI/CD, Git 🔌 Integrations: REST APIs, CRMs (Salesforce, HubSpot), ERPs (SAP, QuickBooks), IoT data 📊 Data Visualization: Power BI (Embedded), Apache Superset Example Use Cases End-to-end SaaS data infrastructure for lead-generation platforms ETL pipelines consolidating CRM, ERP, and IoT data into analytics-ready datasets Embedded analytics portals for client KPI tracking Role-based reporting for operations, finance, and product teams Microsoft Certified PL-300 – Power BI Data Analyst Associate DP-700 – Fabric Data Engineer Associate DP-500 – Azure Enterprise Data Analyst Associate Clients choose me because I: 🔸 Deliver on time and to spec 🔸 Take ownership of the whole solution, from ingestion to analytics 🔸 Communicate clearly with both technical and non-technical teams 🔸 Bring both enterprise-scale engineering and startup agility to projects If you’re looking for a technical data consultant who can architect, build, and optimize your data infrastructure - let’s connect.

Are you looking for a reliable, Azure-certified .NET developer who builds modern, scalable, and secure applications using the latest technologies? With 8+ years of professional experience, I specialize in full-stack .NET development — from robust Web APIs and .NET MVC applications to cloud-native systems and data-driven platforms. What I Can Do for You: 🚀 Full-Stack .NET Development • ASP.NET Core (latest LTS), .NET 6/7/8 • .NET MVC with modern Razor patterns • Blazor Server & WebAssembly 🔗 Web API & Integrations • RESTful API design & development • API versioning, Swagger / OpenAPI • Secure APIs with JWT, OAuth2, Entra ID • High-performance, scalable endpoints ☁️ Cloud & DevOps • Azure App Services, Functions, Container Apps • CI/CD pipelines (Azure DevOps, GitHub Actions) • Key Vault, App Insights, monitoring & logging 🔐 Identity & Security • Microsoft Entra ID / Azure AD B2C • External logins (Google, Microsoft) • OAuth2 & OpenID Connect 💳 Payments & FinTech • Adyen integrations: Drop-in, Express Checkout, Apple Pay, Google Pay, 3DS, recurring billing 🗄 Databases & Data Layer • SQL Server – stored procedures, indexing, tuning • MongoDB – scalable NoSQL design • Azure Cosmos DB and blob Storage– partitioning, performance optimization • Entity Framework Core & LINQ 📨 Messaging & Background Jobs • RabbitMQ, Quartz.NET • Event-driven & async processing 🎨 Frontend & JavaScript • Modern JavaScript (ES6+) • Bootstrap, HTML5, CSS3 • Dynamic UI with Blazor and MudBlazor 🧪 Testing & Quality • xUnit, Moq, unit & integration testing • SOLID principles, clean code, TDD practices 🧩 CMS Solutions • Umbraco & Optimizely custom development Certifications: • Microsoft Azure Associate Developer (AZ-204) • Power Platform Fundamentals (PL-900) • RPA Developer Foundation Training Why Clients Choose Me ✔ Top-Rated on Upwork with proven delivery ✔ 8+ years of real-world .NET experience ✔ Clear communication & agile delivery ✔ Strong problem-solving mindset ✔ Long-term, client-focused partnership Let us collaborate to modernize your legacy applications or develop high-performance solutions that will propel your business forward. Contact me today to begin!

I am very experienced developer using Excel, VBA and SQL, MS Power Platform, BI, Flows, PowerApps, MS Access. I have been developing applications for small businesses for over 20 years. I have saved thousands of hours of manual work for small companies and businesses. I have excellent understanding of business needs and requirements interpretation skills because I have worked on both sides- business and IT. I have an extensive experience developing applications for small businesses and business units withing larger organizations, designing reports, automations, ETL, data workflow and analysis, data quality assurance, etc. I am adept at gathering necessary requirements from stakeholders and translating into actual code, conducting deep analysis of large data sets. I am results oriented and a motivated self-starter with a strong sense of urgency, quick learner, able and willing to work in challenging situations with aggressive timelines. Excellent communication skills.