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Most BI projects fail for the same reasons — dashboards no one opens, reports built by hand every Monday, and data spread across five tools that don't talk to each other. I help teams fix that. I build dashboards people actually use, automate the reports that eat your week, and turn scattered data into something you can decide on. WHAT I CAN HELP WITH → A Power BI or QuickSight dashboard that loads fast and answers the questions your team is actually asking → Moving messy Excel reporting into something automated and trustworthy → Building a clean SQL data model behind your dashboards so numbers stop disagreeing → Product and conversion analytics setup (Mixpanel, GA4) so you finally see where users drop off → A second pair of eyes on an A/B test, funnel, or KPI structure that doesn't feel right → Migrating legacy Tableau or Excel dashboards into Power BI or Amazon QuickSight WHAT I DO → Dashboard development → Power BI, Amazon QuickSight, Tableau, Looker Studio → Data modeling → DAX, Power Query (M), star schema, calculated measures → SQL Queries → PostgreSQL, Amazon Redshift, AWS Athena, Oracle, SQL Server, MySQL, BigQuery → Product analytics → Mixpanel, event tracking, funnel analysis → Reporting automation & Data Analysis → Python (Pandas, NumPy, Matplotlib), Power Automate, Make, Zapier, Excel → Executive reporting → KPI scorecards, drill-downs, mobile-ready layouts → Data cleaning & ETL → multi-source integration, validation, refresh schedules INDUSTRIES I WORK WITH Banking, fintech, telecom, digital products, e-commerce, and SaaS. If your data lives in AWS, a SQL database, an ad platform, or a spreadsheet someone refuses to give up, I can probably work with it. HOW I WORK Short discovery call or chat to understand what decisions the dashboard needs to support. A working draft within the first week so we iterate on something real instead of a spec. Documentation and a short handover so your team isn't dependent on me to keep using it. TOOLS Power BI • Amazon QuickSight • Tableau • Looker Studio • SQL (PostgreSQL, Redshift, Athena, Oracle, SQL Server, BigQuery, MySQL, ) • DAX • Power Query (M) • Python (Pandas, NumPy) • Mixpanel • GA4 • Power Automate • Make • Zapier • Excel • Google Sheets Send me a message and tell me what you're trying to solve. Happy to take a look and tell you honestly if I'm the right fit.

Your dashboards look fine. The numbers don't match. CRM exports say one thing. Finance reports say another. Operational or marketing reports show something slightly different. Eventually, teams stop trusting the data, decisions slow down, and reporting becomes harder to rely on. That's usually when I get involved. I work with data coming from CRMs, reports, exports, APIs, and financial systems to trace where metrics come from, reconcile discrepancies across sources, and rebuild the reporting logic so KPIs actually align. This is not just dashboard work. It is the layer underneath: structuring fragmented reporting flows, standardizing definitions, and making sure the numbers used across teams are consistent and explainable. Common situations I help fix: * Different dashboards showing different totals for the same KPI * CRM metrics that don't match finance or billing reports * KPI definitions that changed over time and broke comparisons * Operational data too messy to analyze without structure * Teams spending more time debating numbers than using them Selected outcomes: * Reduced manual reporting time by ~80% by replacing repetitive CRM exports with an API-connected R/Shiny dashboard * Reconciled operational, clinical, and billing data for a multi-location healthcare CRM environment * Structured fragmented transaction records into a workflow where operational and accounting numbers aligned * Turned raw survey data into validated customer segments for strategic targeting I typically work with CRM platforms, financial and payment systems, transactional datasets, APIs, and internal operational reporting. Core tools: R, SQL, and Shiny. I'm usually a strong fit when a company already has reports and dashboards, but the logic behind the metrics no longer holds across systems.

As a recent graduate with a Master's degree in Data Science and a Bachelor's degree in Mathematics, I bring a solid foundation in analytical skills and scientific reasoning. I have experience in data analysis and a keen interest in transforming complex data into actionable insights. My background in mathematics has equipped me with strong problem-solving abilities, and I have also tutored high school students, enhancing my communication and teaching skills. I thrive on challenges and am driven to leverage my academic knowledge to provide meaningful solutions. If you're looking for someone who can analyze data effectively and translate that analysis into practical outcomes, I am eager to collaborate. Let's turn your data into a powerful asset for your business.

Experienced project manager: SAP, SALESFORCE, Business Intelligence Universidad Politécnica de Madrid. 2003

I help businesses transform complex, fragmented data into scalable, executive-ready Power BI ecosystems that drive high-level decision-making. With a unique background as a Commercial Strategy Director and a Physics/Chemistry Educator, I don't just "build dashboards"—I architect robust data foundations and translate technical complexity into clear business value. What I bring to your project: - Scalability: Experience architecting data systems for 900+ locations. I build solutions that grow with your business. - Business Intelligence: Former Director-level experience, meaning I understand your P&L, KPIs, and operational challenges from the inside. - Pedagogical Clarity: As a former science teacher, I excel at explaining complex data trends to stakeholders, ensuring your team actually knows how to use the tools I build. Core Expertise: ✅ Advanced Data Architecture: ETL processes, relational modeling, and SQL/Python integration. ✅ Strategic Dashboards: Financial (P&L), Sales Performance, and Operational KPIs. ✅ System Optimization: Auditing and fixing existing "spaghetti" sheets or broken Power BI models. Tech Stack: Power BI (DAX/Power Query), SQL, Python, Excel/Google Sheets, and integration with tools like Xero, Mews, and Cloudbeds. If you are looking for senior-level reliability, architectural precision, and strategic insights, let’s discuss how I can help your business thrive.

⚡️Top 1% on Upwork (Expert-Vetted) ⚡️ 100% Job Success Score ⚡️ Enhanced +100 companies 🌟 Accomplished Business Intelligence expert with robust expertise in data analytics and advanced data solutions. 📊 Proficient in developing engaging Power BI dashboards and excels at integrating complex data sources, including APIs, Microsoft Fabric, and Data Lakes. 🛠 Skilled in orchestrating extensive Data Analytics projects across diverse sectors such as IT, Retail, Construction, Energy, Pharmaceuticals, and E-commerce. 💻 Technically adept with DAX, Power Query, SQL, Snowflake, Databricks, Python, Spark jobs, and SaaS APIs to engineer tailored solutions for distinct project requirements. 📈 Demonstrated success in deploying data-driven strategies that bolster customer retention, revenue growth, and operational efficiencies. CLIENT CASES 🔍 Data-driven Decision Making: Advanced data analytics facilitated a pharmaceutical company in pinpointing crucial customer segments. Developed comprehensive Power BI dashboards by integrating diverse data sources such as sales, web traffic, and social media via APIs, enhancing customer retention by 20% and revenue by 15%. 📦 Streamlined Inventory Management: Directed a sophisticated data analytics initiative for a construction firm utilizing DAX, Power Query, and Snowflake coupled with data pipelines to monitor resources effectively, cutting inventory costs by 30% and boosting project delivery. 🛒 E-commerce Sales Optimization: Implemented Python scripts and leveraged SaaS APIs to dissect e-commerce sales data. Crafted dynamic pricing models that escalated online sales by 25% and improved customer satisfaction. TESTIMONIALS ⭐⭐⭐⭐⭐ "Firat gave us excellent guidance at the start, so we approached the project the right way. He delivered his work timely, was always available when we needed him and communicated well." ⭐⭐⭐⭐⭐ "Firat has done an amazing job again on something that needed a quick turn-around! It's great working with someone who can understand the business case and help inform the requirements." ⭐⭐⭐⭐⭐ "Firat was incredibly helpful, articulate, and prompt with my Power Query request. He provided details about his work and documentation on how to utilize it. His query was designed in a way that I could utilize it for other RESTful API requests in the future. If I have any other projects with the Power Platform, I'll be reaching out to him." Available to provide a detailed portfolio of reference projects upon request.