I'm a Full-Stack Developer with 10+ years of experience building complete web solutions end to end - frontend, backend, cloud, and now AI - for global companies including P&G, BD, and HCL. 120+ projects delivered. 100% Job Success Score. Top Rated Plus on Upwork, the top ~3% of freelancers on the platform. "Full-stack" isn't a buzzword for me - it means I can take a project from a blank page to a live, working product without handing you off between three different specialists. Frontend, backend, database, deployment, and now AI integration - all one person, one point of contact, one consistent quality bar. WHAT "FULL-STACK" ACTUALLY COVERS Frontend Development React / Angular / TypeScript / JavaScript / responsive UI - interfaces that are fast, clean, and built around how real users actually behave. Backend Development C# / SQL Server / REST APIs / Microservices - the engineering underneath that keeps everything reliable at scale. Web Development & E-Commerce Custom web applications plus Shopify and WooCommerce builds - including theme customization, payment gateways, and ERP/CRM integrations that keep your store and your back office actually talking to each other. Cloud & DevOps Azure / AWS / Docker / CI/CD - infrastructure that scales with your business instead of becoming the bottleneck. AI Integration & Automation This is where I go beyond traditional full-stack work: OpenAI/ChatGPT API integration, intelligent workflow automation, and AI-powered features built directly into your product - not bolted on as an afterthought. HOW I WORK I don't just take a spec and start typing. Before writing a line of code, I make sure I understand what you're actually trying to achieve - the business goal behind the feature request - because the fastest way to waste a budget is building the wrong thing well. Once that's clear, I move fast and build it to last: clean architecture, secure by default, and documented well enough that it isn't a black box six months from now. If you need one person who can own a project end to end - design the system, build the frontend and backend, wire up AI where it actually helps, and deploy it properly - let's talk about what you're building.

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.

Hi, I’m Marcus Green, Ph.D. Your preferred problem-solver and solution provider specializing in marketing analytics, business intelligence, GA4, Google Tag Manager, Power BI, Looker Studio, AI automation, and custom growth systems. I am here to Serve you! Yes, S.I.R. ! SERVICE. INTELLIGENCE. RELATIONSHIPS. Service means I begin with the person, organization, and problem in front of us. I listen and anticipate need. Intelligence means I diagnose carefully, study the data, ask better questions, and build the right solution instead of simply selling another tool. Relationships mean I communicate clearly, teach what we know, take responsibility for the work, and create value that lasts beyond one contract. I built CTLR PLUS SOLUTIONS, it is a growth firm. Clients usually contact me because: • GA4, Google Ads, Meta, their CRM, and revenue reports do not agree. • Google Tag Manager or conversion tracking is broken. • Their Power BI or Looker Studio dashboard does not answer the real business question. • Reporting is manual, slow, or difficult to trust. • Their data is spread across disconnected systems. • They want to use AI automation but do not know what should be built. • They need a dashboard, workflow, internal tool, web application, or MVP made real. • They need a senior problem solver who can connect business goals with technical execution. I want to know: What is the real problem? What is preventing growth? What would a useful solution allow your people to do? CORE SERVICES MARKETING ANALYTICS AND TRACKING • Google Analytics 4 (GA4) • Google Tag Manager (GTM) • Google Ads conversion tracking • Meta Pixel and Conversions API • Lead, form, call, and checkout tracking • Marketing attribution • CRM and revenue measurement • Tracking audits and troubleshooting BUSINESS INTELLIGENCE AND DASHBOARDS • Microsoft Power BI • Looker Studio • Executive dashboards and KPI reporting • Marketing, sales, financial, and operational dashboards • Data modeling and automated reporting • BigQuery, Snowflake, SQL, and ETL workflows • Data integration and BI strategy AI AUTOMATION AND CUSTOM DEVELOPMENT • AI-powered business workflows • Custom AI tools and internal agents • Workflow and CRM automation • Lead routing, qualification, and enrichment • APIs and software integrations • Web scraping, Chrome extensions, and internal applications • Custom MVP and web application development GROWTH STRATEGY AND SOLUTION ARCHITECTURE • Analytics and technology audits • Growth measurement and KPI development • Business requirements and solution design • Technical project leadership • Fractional analytics and BI leadership • Team training and executive decision support HOW I WORK 1. DIAGNOSE THE REAL PROBLEM I understand what is happening, why it matters, what has already been attempted, and what success should look like. 2. FIX THE FOUNDATION If the tracking is wrong, the dashboard will be wrong. If the process is unclear, automation will only create confusion faster. 3. BUILD WHAT IS USEFUL The goal is not more technology. The goal is a practical solution that saves time, improves decisions, reduces waste, increases visibility, or creates new value. 4. TEACH AND EXPLAIN Teaching is part of how I serve. I explain what we are doing, why it matters, how the system works, and what the information means. PROVEN EXPERIENCE • $300K+ earned on Upwork • 100% Job Success Score • Top Rated Plus • 100+ completed Upwork projects • Ph.D. in Educational Psychology and Measurement • More than 20 years of experience in leadership, research, education, analytics, measurement, and organizational problem-solving I lead every engagement personally. When additional capacity is needed, I work with trusted CTLR PLUS SOLUTIONS developers, data engineers, automation specialists, and technical professionals. You receive senior strategy, direct accountability, and the technical support required to complete the work properly. The work carries my name. Growth is not only more revenue. Growth can mean better decisions, stronger systems, more capable people, less wasted time, clearer information, and an organization better prepared for what comes next. We are always in the solution business. NEXT STEP Send me a message describing the problem, what is not working, the tools involved, and what a successful outcome would look like. I will help identify the clearest next step and determine whether I am the right solution provider for the work. Your friend and analyst Marcus A. Green, Ph.D. Founder and Principal Problem-Solution Architect CTLR PLUS SOLUTIONS Service. Intelligence. Relationships. Yes, S.I.R. Thank you for your time reviewing my profile!

Top-Rated Plus Freelancer | Senior .NET Engineer | API Integrations | Legacy Modernization | AI-Assisted Automation I am a Senior Software Engineer with over 20 years of professional experience helping companies modernize legacy systems, build reliable APIs, and integrate complex business platforms. I started my career working with Visual FoxPro and desktop-based enterprise applications, and later transitioned to the .NET ecosystem, where I have spent many years building scalable backend systems using C#, ASP.NET, and SQL Server. This background allows me to work comfortably with both legacy and modern technologies, acting as a bridge between old systems and new architectures. In recent years, I have also incorporated AI-assisted tools and platforms into my workflow to improve automation, data analysis, and development efficiency, including experience with Abacus.AI for AI-driven insights and process optimization. What I specialize in Legacy system modernization (Visual FoxPro, Delphi → .NET / ASP.NET Core) API development and system integrations (REST & SOAP) ERP and HR system integrations (Epicor, ADP, Workday, SAP) Database-driven applications (SQL Server, Oracle, MySQL) Automation and productivity solutions (AutoIT) AI-assisted automation and data analysis How AI adds value to my work AI-assisted development for faster debugging, refactoring, and optimization Using AI tools to improve reporting, data interpretation, and business insights Supporting automation workflows with AI-driven analysis Enhancing legacy systems with modern, intelligent components Recent work highlights Migrated legacy Visual FoxPro applications to C# and ASP.NET with SQL Server backends Integrated payroll and HR platforms (ADP, Workday) with custom ERP systems Designed and implemented RESTful APIs for multi-system environments Applied automation and AI-assisted tools to reduce manual processes Led small development teams on long-term enterprise projects Technical Skills Languages & Frameworks: C# (.NET, ASP.NET, ASP.NET Core, WinForms, WPF), Visual FoxPro, Delphi, Angular, AutoIT, Java Databases: SQL Server (T-SQL), Oracle (PL/SQL), MySQL APIs & Integrations: REST, SOAP, third-party and internal systems Reporting: SSRS, Crystal Reports ERP & Business Systems: Epicor, SAP, ADP, Workday AI & Automation: Abacus.AI, AI-assisted development, automation workflows Tools: SSIS, Inno Setup, InstallShield I am a reliable, detail-oriented professional who values clean code, clear communication, and long-term collaboration. If you need help modernizing a legacy system, integrating APIs, or enhancing your applications with automation and AI-assisted solutions, I’d be glad to work with you.

Hello! I’m Alihan, a Power BI Developer, Data Visualization specialist, and Data Analyst focused on turning complex business data into clear dashboards, automated reports, and actionable insights. I help businesses replace fragmented spreadsheets, repetitive reporting tasks, and disconnected data sources with reliable Power BI dashboards and structured reporting systems. My work covers the complete business intelligence lifecycle, including data extraction, data cleaning, transformation, data modeling, DAX development, dashboard design, KPI definition, publishing, performance optimization, and ongoing reporting support. As a Power BI Developer, I build interactive dashboards for sales, finance, marketing, operations, customer performance, executive reporting, and internal business processes. I create Power BI reports that are visually clear, technically reliable, and easy for teams to use in daily decision-making. As a Data Analyst, I work with raw business data to identify trends, performance gaps, operational patterns, and growth opportunities. I use Power BI, SQL, Excel, Power Query, DAX, and Data Visualization techniques to transform disconnected datasets into structured insights and decision-ready reports. My Power BI and Data Visualization work includes Power BI dashboard development, interactive KPI dashboards, executive and management reporting, sales performance dashboards, financial reporting, marketing analytics, operational reporting, customer and product analysis, data cleaning, Power Query development, DAX measures, calculated columns, data modeling, SQL analysis, Excel reporting, ETL, automated data refreshes, Row-Level Security, API connections, database integrations, and dashboard performance optimization. I build dashboards around practical business questions. Instead of displaying data without context, I structure each Power BI report around the KPIs, comparisons, targets, filters, and trends that decision-makers need to understand performance and take action. My Data Visualization approach focuses on clarity, hierarchy, and usability. I select the right charts, layouts, drill-down paths, filters, tooltips, and visual interactions to help users understand performance quickly. I also keep reporting consistent across executive, departmental, and operational levels. As a Power BI Developer, I connect and model data from Excel and CSV files, SQL databases, PostgreSQL, MySQL, CRM systems, ERP systems, marketing platforms, advertising tools, cloud data sources, APIs, and multiple reporting files. I combine these sources into clear data models that support reliable dashboards and scalable reporting. I use Power Query to clean, merge, structure, and transform data before building the reporting model. I use DAX to create calculated measures, time intelligence, year-over-year comparisons, targets, ratios, rolling metrics, variance analysis, and business-specific KPIs. I also improve existing Power BI dashboards by fixing data model issues, rewriting DAX measures, simplifying report logic, improving refresh and load times, reorganizing visuals, correcting filters, and making the overall reporting experience easier to understand and maintain. Clients work with me when they need a Power BI Developer who can build a dashboard from raw data, a Data Analyst who can turn business data into actionable insights, or a Data Visualization specialist who can make complex reporting easier to understand. I also support DAX development, Power Query transformation, KPI dashboard design, SQL and Excel analysis, API and database integration, reporting automation, existing dashboard redesign, data model optimization, performance improvements, and structured reporting documentation. I work closely with stakeholders to understand what they need to measure, where their data comes from, and how the final dashboard will support decisions. I then organize the data, define the reporting logic, build and test the Power BI dashboard, validate the outputs, and document the system for future use. My goal is not simply to create attractive charts. I build Power BI dashboards and Data Visualization systems that help teams understand their business, reduce recurring reporting work, and make faster, more confident decisions. If you need a Power BI Developer, Data Visualization specialist, or Data Analyst for dashboards, reporting automation, DAX, Power Query, SQL analysis, Excel reporting, or business intelligence, feel free to invite me to your project.

Most clients come to me after struggling with slow development cycles, messy codebases, and APIs that break under scale - usually because the project was built without the right architecture from day one. I'm a Senior .NET Developer with 8+ years of experience building fast, scalable, production-ready backend systems using C#, ASP.NET Core, Web API, and Microsoft Azure. I also use AI-assisted tools like Cursor, Claude, and GitHub Copilot to move faster without cutting corners on quality. WHAT I BUILD REST APIs and scalable Web APIs using .NET 6 / .NET 8 Clean Architecture, CQRS, Domain-Driven Design, and SOLID principles Full-stack applications - backend in ASP.NET Core, frontend in React.js or Angular Microservices using Docker, Kubernetes, and Azure Service Bus Database design with Entity Framework Core, SQL Server, PostgreSQL, and Azure SQL Third-party integrations - Stripe, PayPal, Twilio, Plaid Background jobs, queues, schedulers, and event-driven processing AI-ASSISTED DEVELOPMENT I treat AI as a real productivity tool, not a buzzword. With Cursor, Claude, and Copilot in my workflow, I write APIs faster with less boilerplate, catch issues earlier through AI-assisted code review, and debug complex systems more efficiently - while I stay fully responsible for architecture, security, and final quality. You get the output of an optimized development process, at the same high engineering standard. WHAT YOU GET Secure APIs - JWT authentication, OAuth2, Azure AD integration Scalable, cloud-ready systems built for Azure Clean, well-documented code (Swagger/OpenAPI included by default) Tested code - unit and integration tests with xUnit / NUnit Long-term maintainability - versioned, structured for future scaling PROJECT EXPERIENCE -Built a HIPAA-compliant healthcare platform using .NET Core, ASP.NET Core Web API, and React.js, improving performance and data security -Developed microservices-based systems on ASP.NET Core and Azure, improving scalability and reliability -Integrated third-party APIs (Stripe, PayPal, Twilio, Plaid) to automate business workflows -Migrated legacy applications to modern .NET Core architecture on Azure, reducing infrastructure cost -Built enterprise platforms - CRM, LMS, SaaS, POS - using C#, ASP.NET MVC, and Entity Framework CORE TECHNOLOGIES Backend: C#, .NET Core, ASP.NET Core, ASP.NET MVC, Web API, Entity Framework Core Cloud & DevOps: Azure App Services, Azure Functions, Azure Service Bus, Docker, Kubernetes (AKS), Azure DevOps CI/CD Database: SQL Server, PostgreSQL, Azure SQL Frontend Integration: React.js, Angular, SignalR (real-time apps) AI Tools: Cursor, Claude, GitHub Copilot Testing & Auth: xUnit, NUnit, JWT, OAuth2, Azure AD If you need a .NET developer who understands both business requirements and solid backend architecture, send me your project details - I'll help you figure out the right approach and get it built right the first time.

Do you have complex business workflows, enterprise data challenges, or a need for custom Oracle applications that meet strict regulatory requirements? I am a Senior Oracle Solutions Architect with over 15 years of experience building scalable, secure, and high-performance enterprise systems. I specialize in bridging the gap between business logistics and technical execution, ensuring that your software isn't just functional—it’s audit-ready and built to last. My Core Expertise: Oracle APEX Development: Modern, responsive, and data-driven web applications designed for complex business logic. ERP & EBS Integration: Deep experience integrating Oracle E-Business Suite with custom solutions, ensuring data integrity across financial and supply chain modules. Enterprise Logistics & Warehousing: Proven track record in developing systems for bonded warehousing, inventory management, and import/export logistics. Compliance-Focused Architecture: I design with compliance in mind. Whether you are dealing with CQC, financial data, or sensitive enterprise information, I bake security and auditability directly into the system architecture from day one. Why work with me? I don’t just write code; I architect solutions. I understand the "big picture" of your business operations—from financial capitalization to multi-tenant user security. My goal is to provide you with a robust system that simplifies your operations and scales with your growth. Let’s discuss your project. If you need an expert to untangle a complex database challenge, modernize a legacy system, or build a secure, mission-critical application from the ground up, let's connect. I am ready to bring my 15 years of Oracle experience to your next project.

Over 10 years of experience developing Business Intelligence, data analytics, and reporting solutions using SQL Server BI Stack, Power BI, Tableau, Microsoft Fabric, Azure Data Factory, Databricks, Azure SQL Database, Azure Data Lake, BigQuery, Firebase, and Google Data Studio. Experience with Microsoft Fabric orchestration and ETL development, including Fabric Pipelines, Lakehouse, Dataflow Gen2, Notebooks, Warehouse, OneLake, medallion architecture, and Bronze/Silver/Gold data processing for analytics and Power BI reporting. Experience migrating SQL databases and on-premise data sources to Azure Data Lake using Azure Data Factory, Azure SQL Database, Azure SQL Data Warehouse, Azure Data Lake Analytics, Databricks, and modern cloud data integration patterns. Experience in database design and Business Intelligence development using SQL Server 2019, SQL Server Analysis Services, DAX, MDX, OLAP Cubes, SSAS Tabular Models, Star Schema, and Snowflake Schema. Experience managing database security, controlling access, granting permissions, and supporting data governance across SQL Server, Azure SQL, Fabric workspaces, and reporting environments. Experience with Microsoft Power Apps, including integration with SQL Server tables as a data source and storage layer for business applications. Generated ad hoc reports using Excel Power Pivot, Power Query, and Power BI to support critical business decisions and stakeholder reporting. Experience with Microsoft Reporting Services, Power BI dashboards, Crystal Reports, SSRS, SQL Server on-premise reporting, and SSAS Tabular models using DAX and MDX. Proficient in building complex SSIS packages for data transformation and transferring data from multiple sources into data warehouses based on business logic. Utilized Power BI and Tableau to create analytical dashboards for tracking Sales KPIs, operational metrics, and executive-level reporting, including slicers and self-service reporting features for business users. Implemented Power BI Gateway connections to multiple data sources to support scheduled refresh, semantic modeling, Power Pivot, and Power View reporting. Performed Tableau data preparation and type conversion functions when connected to relational data sources such as Microsoft SQL Server and GitHub. Developed storytelling dashboards in Power BI Desktop and Tableau Desktop and published them to Power BI Service, Power BI Report Server, and Tableau Server for end-user consumption.

Focusing on Database Administration, Network & System Administration, Programming, and Networking with a flare for integration using various technologies. MS SQL Query Tuning/Optimization, jQuery, JavaScript, AWS Billing Optimization and infrrastructure setup including EC2 Instances, PowerShell scripts, and Cold Fusion. I am a well-rounded senior-level IT consultant with very diverse skills & experiences in many industries and countries. I have a get-it-done attitude, and I look for creative ways to achieve a solution that means fewer headaches for the client. My experience starts from the days when DOS was all we had. This knowledge means I know what is really behind the window versus those that only see the window itself; the façade. Many people know how to drag and drop a button onto a form in the studio, but can they write the code to make it work on the backend without a WYSIWYG interface? I usually can. I once challenged a .Net programmer to create code, and I would write classic ASP with C# (on the backend), and it was faster to code and just as efficient and scalable. Back in the dBase days, I wrote an Indexing routine that was faster than the one built-in to the software. These days I prefer to have SQL Server on the backend. Excel, Access VBA are no problem. The 3 J's: JavaScript, jQuery, JSON are also no problem. I prefer to do remote consultations since I travel all over the world.

Seasoned technology professional with 20+ years of comprehensive expertise in Linux systems, SQL databases, Perl programming, and data transformation and analysis. Proven ability to write, optimize and troubleshoot complex SQL queries.