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Hey! I will help you customize and automate your reports. They will be informative, understandable, and compact. Dashboards allow you to easily identify relationships between different metrics, spot trends and prevent potential issues. With my dashboards, you can: 📌 very quickly find answers to business questions (where, when, why) 📌 see all important data on one page 📌 integrate data from different sources 📌 update data in real-time 📌 filter by the desired criterion (date, type, segment, category, etc.) 📌 compare data with previous periods 📌 check the data from the point of view of any department 📌 use from phone/tablet 📌 save time and money Your work will be done quickly and efficiently. I am attentive to details. I adhere precisely to your wishes for work. I am completing a data analytics course. I am well-versed in Excel. I have experience in Power BI and Tableau. ✉️ Feel free to contact me with any questions. I analyzed early: sales (profit, loss, expenses in the context of different categories with an answer why exactly), questionnaires, transport data, company personnel (fired, hired, recruitment funnel, growth of new/laid-off employees, wages, staff structure, ranking of departments). Updates: 08.05.2024

𝗚𝗜𝗩𝗜𝗡𝗚 𝗙𝗢𝗥𝗠 𝗔𝗡𝗗 𝗩𝗢𝗜𝗖𝗘 𝗧𝗢 𝗬𝗢𝗨𝗥 𝗗𝗔𝗧𝗔 Need a microsoft power bi rebuild, a looker dashboard your team will actually open, or a power bi developer and power bi expert who turns 40 tabs into one screen? I'm a top rated data analyst and power bi developer who builds reporting that people keep using. Before analytics I worked as a senior visualization artist, so data visualization is where I am strongest: what the eye reads first on a page, and where the number that matters has to sit. 2,200+ hours on Upwork across 130+ projects at a 5.0 rating, and a business intelligence process that cuts manual data entry by up to 90%: one dataset, one definition per metric, a refresh that beats the meeting. As your data analyst and power bi developer I write the sql that feeds power bi and google looker studio. 🏆 Why my data solutions stand out: ☑︎ a data analyst whose data analytics and data analysis sit on strong visual work ☑︎ sql tuning and a star schema that typically shave 50-70% off refresh time ☑︎ google looker studio, data studio and legacy systems pulled into one layer ☑︎ microsoft power bi data visualization built by a power bi developer around how an executive reads a page ☑︎ one power bi developer instead of three contractors: modeling, sql and design in one head, ~30% less overhead ☑︎ excel power bi migrations from your data analyst: a messy 20-tab workbook becomes a 1-click model ☑︎ searched power bi expert or power bi certified? this is the profile you wanted 📌 Power bi developer work: reporting and visualization ▪︎ microsoft excel modeling, a google sheets dashboard, or full power bi developer work, all pixel perfect ▪︎ power query turning raw exports into an excel dashboard, a power bi model or a google data studio portal ▪︎ custom logic in data analysis expressions (DAX) and row level security ▪︎ migrations into google looker studio or wider looker environments, live in 5 to 7 days ▪︎ a ga4 looker connection: google analytics into a google looker studio (looker data studio) dashboard, refreshed every 15 min ▪︎ dashboards embedded into your wordpress site, with light javascript for custom visuals 📌 Analytics and infrastructure ▪︎ the data analyst between your goals and the tech team, so your data engineer keeps 100% on architecture while I own reporting ▪︎ 10M+ row datasets in google bigquery, queried with sql that returns in seconds ▪︎ microsoft sql server and microsoft azure, plus etl on sql server integration services ▪︎ clean documented architecture, no full time sql server dba needed 📌 Advanced insight and craft ▪︎ enough data science method to speak your data scientist's language ▪︎ able to read and adjust python and R scripts when tools run out ▪︎ basic machine learning to sanity check predictive trends ▪︎ a figma layout before any visual is placed, plus assets in adobe illustrator and adobe ⚙️ Workflow 𝗗𝗜𝗦𝗖𝗢𝗩𝗘𝗥𝗬 (1 to 2 days): no tool opens before the kpis are agreed. We lock 5 to 8 core metrics, then pick between tableau, google looker studio and power bi, documented in notion so the team stays aligned. 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 (1 to 2 weeks): 70% of power bi developer work is inside the model, before the first visual. I ship in tickets you approve one by one, ending as an excel overview, a power bi interface or a google looker studio portal. 𝗧𝗘𝗦𝗧𝗜𝗡𝗚 (2 to 3 days): every number is reconciled to your source at a 100% match target, checked by me as your data analyst and by whoever on your side knows the data best. 𝗢𝗣𝗧𝗜𝗠𝗜𝗭𝗔𝗧𝗜𝗢𝗡 (ongoing): from a standalone google studio report to data literacy company wide, with 2 free tweak rounds in the first 30 days. 💡 What changes after the rebuild ✅ up to 40% less time in status meetings: one number per metric ends the source argument ✅ refresh down from 20+ minutes to under 2 once the model is optimized ✅ 80% fewer manual excel exports, because the answer is already on the page ✅ 100% of the team on the same numbers: a power bi workspace for licensed users, a google looker studio link for everyone else 🚀 Send me your worst reporting bottleneck. You get a data analyst who diagnoses it and a power bi developer who fixes it, with a scoped plan back in 24 hours. 🟢 Message me directly. 🟢 Invite me to your job.

My specialization is data extraction, transformation, loading (ETL), data cleaning and preprocessing, data visualization, creating interactive dashboards, writing comprehensive and meaningful reports, statistical analysis. I turn raw data into clear and meaningful insights, which help to increase revenue, optimize operations and drive business decisions🚀 Here is how I can help you: ✅ Extract your data from other sources, transform it and load ✅ Clean from duplicates, outliers and blank rows, anomaly detection ✅ Improving the accuracy of data ✅ Aggregate data into clear and meaningful Pivot Tables ✅ Prepare reports in Google Sheets / Excel ✅ Analyze and interpret complex datasets ✅ Find patterns ✅ Prepare clear and meaningful analytical reports ✅ Ad-hoc reports ✅ Develop interactive dashboards in Looker Studio, Tableau, Power BI, and support them ✅ Write efficient SQL queries for data extraction & manipulation ✅ Calculate and analyze User Metrics like CPC, CPM, DAU, MAU, WAU, CAC, LTV, ARPU, ARPPU, Churned users, MRR, Contraction/Expansion MRR ✅ KPI definition and tracking through real-time dashboards in Looker Studio, Tableau and Power BI ✅ Perform and analyze A/B testing experiments using Python My Technical Skills include: ✔ Excel & Google Sheets (Pivot Tables, Multi-level sorting, IF, VLOOKUP, HLOOKUP etc.) ✔ SQL (PostgreSQL) & BigQuery (multistructural tables transformation) ✔ Python, big data manipulation libraries (Pandas, NumPy, SciPy, Matplotlib, Seaborn) ✔ Data visualization in Looker Studio | Tableau | Power BI ✔ DAX language (formulas repairment, formulas building) Stages of Work: 1. Technical task & Consultation. You describe your prefernces for the project execution and provide data sets to work with. If you have any samples of dashboards or colour prefernces, it would be perfect. If not, I will advice you some samples so you could choose the best fit ✔ To ensure you will get exactly what you need in short time and good quality ✔ To set deadlines and timeframes ✔ To set preffered design features 2. Data Analysis & Visualization. After finalizing the details, I create a test table/chart for you to ensure suitability. Once test table/chart is approved we proceed with the project ✔ Accuracy and precision ✔ Detail-oriented approach 3. Validation & Final adjustments. I send you finished project for review and await any adjustments you may have. The project is ready when you are satisfied with final results ✔ Be updated with the process of the work ✔ Make adjustments to ensure you recieve a perfect result With a keen eye for detail and a passion for problem-solving, I ensure my clients get accurate, insightful, and actionable reports to make informed decisions. Let’s collaborate and turn your data into a powerful business asset! 🚀 📩 Contact me today to discuss your project needs! 🔍 Click the «Invite» button on the top right of this page to start our discussion. Best regards, Mariia KEYWORDS: Data Analytics, Data cleaning, Product Analytics, Report Writing, Unit Economics, User Metrics, Pivot Table, Data Aggregation, Writing Analytical Reports, Data Accuracy, Data Validation, Excel, Google Sheets, Google tables, Google Data Studio, Looker Studio, KPI metrics, Data Visualization, interactive dashboard, Tableau, Power BI, Microsoft Power BI, purchase funnel, DAX, formulas building, SQL, PostgreSQL, BigQuery, Ad-hoc reports, ETL, Python, Pandas, NumPy, SciPy, Seaborn, Matplotlib, Multi-level sorting, IF, VLOOKUP, HLOOKUP, Tableau Dashboard, Looker Studio Dashboard, Google Data Studio dashboard, data extraction, complex interactive reports, diplicates removal, statistical analysis, A/B testing, results interpretation, incremental analysis, statistical tests analysis, experiments analysis