Optimize Operational Data Models (Power BI)

@ShafirR

Hello, I can help optimize your Power BI operational data model so refresh times improve, calculations remain accurate, and the model becomes easier to maintain. I am a database and data engineering specialist with over 10 years of experience working with SQL Server, ETL pipelines, and Power BI reporting environments. I have optimized several large operational Power BI datasets by redesigning the data model into efficient star schemas and improving DAX and Power Query performance. For your project I will: • Audit the existing PBIX model to identify performance bottlenecks • Refactor tables into a clean star schema for better query performance • Optimize DAX measures and remove expensive calculated columns where possible • Simplify and parameterize Power Query (M) steps for reliability • Implement incremental refresh strategies to reduce dataset refresh time • Adjust underlying SQL views or stored procedures if needed for better performance • Configure deployment to Power BI Service with gateway setup and role-based security Deliverables will include a redesigned PBIX, documented data model and measures, optimized Power Query transformations, and a short report explaining the improvements and performance gains. My focus is on creating scalable, maintainable Power BI models that support fast refresh and accurate reporting. I can start immediately and aim to complete the work within your two-week timeline. Best regards, Shafir

@ShaikhAneesa

Hello, I have thoroughly reviewed the project requirements for optimizing operational data models in Power BI. The focus is on redesigning and streamlining existing data models to enhance refresh speeds, ensure accuracy in calculations, and simplify maintenance. Let's chat and discuss it further. To handle your project, I will start with auditing the PBIX in Power BI Desktop, transitioning tables into a clean star schema, and optimizing DAX measures and calculated columns. I will consolidate and parameterize Power Query steps, aiming for incremental refresh and reliability through the on-premises gateway post-publishing to the Power BI Service workspace. Deliverables include a revamped PBIX with documented tables, refined Power Query steps, deployment to the target workspace with configured gateway and security, and a concise summary of changes made and performance enhancements achieved. Before signing-off my bid, I would like to ask a question, i.e., Can you provide access to the current model and necessary connection details for a more detailed analysis? Best Regards, Aneesa.

@ayazakhtar75

I have over a decade of data analysis and visualization experience, making me the perfect fit for your operational data model optimization project. Not only do I have advanced skills in Power BI, but I'm also well-versed in Excel, Google Sheets, VBA automation, and more - crucial for a project that requires comprehensive and integrated solutions. My ability to design advanced spreadsheets, automate tasks through macros and scripts, and handle complex datasets make me adept at tackling your specific needs. Throughout my career, I've made it my mission to optimize processes and uncover growth opportunities - the very objectives you seek with this project. I'm excited about the prospect of digging into your data models, refactoring tables into star schemas, rewriting expensive DAX measures or calculated columns, and restructuring Power Query steps for efficient refreshes. I'm confident that this holistic approach will not only improve refresh speeds but also enhance accuracy and ease of maintenance. In addition to these important technical skills, my professionalism and timeliness make me an asset to any team. Should my prior experience in dimensional modeling, ETL practices, and data visualization best practices give me an edge in spotting additional performance enhancements cost- effectively? I look forward to leveraging my expertise to ensure your dataset is optimized for speed, reliability, accuracy and provides thorough documentation for any future modifications required.

@HiraMahmood4072

Hello, With over 7 years of experience in Data Visualization, Power BI, Data Modeling, Data Management, and SQL, I have carefully reviewed your requirement to optimize operational data models in Power BI. To begin, I will conduct a thorough audit of the existing PBIX in Power BI Desktop, focusing on refactoring tables into a clean star schema and optimizing DAX measures and calculated columns. I will consolidate and parameterize Power Query steps for efficient incremental refresh and ensure reliability through the on-premises gateway post-publishing. My expertise in advanced DAX, M language, SQL, dimensional modeling, ETL practices, and data visualization best practices will enable me to identify performance enhancements and usability improvements. I will deliver a redesigned PBIX with documented tables, relationships, and measures, refined Power Query steps, deployment to the target workspace with configured gateway and security settings, and a detailed summary of changes made and performance gains achieved. I invite you to connect in chat for further discussion on how I can enhance your operational data models in Power BI. You can visit my Profile here: https://www.freelancer.com/u/HiraMahmood4072 Thank you.

@sareheshak

I can audit and optimize your Power BI model, redesigning it into a clean star schema, improving Power Query steps, and rewriting inefficient DAX measures to ensure faster refresh and accurate calculations. I’ll also configure incremental refresh, gateway setup, and role-based security, delivering a well-documented PBIX and performance summary. 10+ years Advanced Excel experience, Certified VBA Programmer, MBA.

@usmanbashir12100

Hi, I have experience optimizing Power BI models with large operational datasets. I can audit your PBIX, redesign the model into a clean star schema, optimize DAX measures and Power Query steps, and prepare the dataset for efficient incremental refresh through the gateway. I’ll also handle deployment to Power BI Service, configure RLS if needed, and provide a brief summary of the improvements and performance gains. I can start right away and complete the work within your timeline. Best regards, Muhammad Usman

@rabbiawebjuggler

As an experienced data analyst with a focus on Power BI and data optimization, I am confident that my skills would make me the perfect fit for your project. Drawing from my vast experience in data analysis and visualization, I have developed a solid understanding of how to translate complex dataset requirements into efficient operational models.

@Tanmoy236

Hello! As a seasoned Power BI specialist with over 9 years of experience optimizing operational data models, I specialize in transforming slow, maintenance-heavy reports into fast, reliable solutions. Your need for a clean star schema, efficient DAX, and streamlined Power Query is exactly where I excel. Here's how I can help: - Conduct a thorough audit of your current PBIX to identify bottlenecks in tables, measures, and Power Query steps - Refactor the model into a proper star schema with optimized relationships and rewritten DAX for peak performance - Parameterize and consolidate M queries while implementing incremental refresh for faster data loads through the gateway - Tweak underlying SQL views or stored procedures as needed and deploy the polished model with row-level security applied I deliver documented, maintainable solutions with clear performance summaries. Two weeks is absolutely achievable. Can you share roughly how many rows your fact tables handle and whether you're using Import or DirectQuery mode?

@KirtikaKataria

Hi there, I understand you need to streamline and optimise your operational datasets that feed Power BI reports, improving refresh speed, calculation accuracy, and overall maintainability. I am confident I can redesign your data models, refactor queries, and ensure your reports perform efficiently while remaining easy to maintain. My approach will begin by auditing your current PBIX file in Power BI Desktop, reviewing tables, relationships, and existing DAX measures. I will refactor your tables into a clean star schema, rewrite expensive calculations, and consolidate Power Query steps with parameterisation to enable efficient incremental refresh. Any necessary adjustments to underlying SQL views or stored procedures will be made to optimise performance and reliability through the on-premises gateway. Next, I will deploy the refined PBIX to your target workspace, configure the gateway, implement role-based security, and document all tables, measures, and transformations. Deliverable: Redesigned PBIX with optimised tables, relationships, and measures; refined Power Query steps; supporting SQL objects; deployed to target workspace with gateway and security; and a summary of performance gains. QUESTION: To ensure maximum performance improvement, do you want the optimisations focused primarily on report refresh speed, calculation efficiency, or a balance of both while maintaining full model functionality? Regards, Shehwani.

@nareshk44

As an experienced data professional, I have a deep understanding of the tangibles and intangibles that drive successful data-driven projects. My experience in handling large operational datasets gives me a unique perspective on your project's needs. My skills with advanced DAX and M language align perfectly with the refactoring and optimization work you're seeking. In fact, I've successfully redesigned and consolidated complex data models in Power BI before to help businesses improve their refresh rates, calculations, and overall maintenance needs. Beyond my technical skills, my proficiency in SQL objects means that I can efficiently ensure that the needed tweaks in views or stored procedures are done effectively. With my understanding of dimensional modeling, ETL practices, and best practices of data visualization, I'm confident in spotting points of improvement to further enhance performance and usability - which are essential to your project. Trust my top-rated services for efficient, fast, accurate, on-time delivery of documents - including extensive documentation of every step taken in this project as you've requested. In a nutshell, choosing me means gaining access to the full package - skills, experience, commitment to quality - everything you need for this project's success. Let's streamline your operational datasets to improve the efficiency of your Power BI reports together!

@SomeeLee25

Hello, I am a full-stack developer (Spring Boot, MySQL, HTML/CSS/jQuery) with additional experience in Python and SQL. While I am not yet a seasoned Power BI specialist, I can support your optimisation project by assisting with SQL object refinements, data structuring, and clear documentation of assumptions and changes. My background in database design and automation allows me to contribute to streamlining data flows and ensuring that calculation sheets and models remain consistent and easy to maintain. I can also prepare concise summaries of changes and performance gains, drawing on my writing experience. I propose a two-week turnaround, aligning with your preferred schedule. My bid is $110 USD, close to the average, reflecting a supportive role in SQL/data structuring and documentation. Best regards, Somee

@stadnichuk

Hey there, Is the current PBIX using Import mode with large fact tables, or are some tables connected through DirectQuery? Also are the slow refresh issues mainly from heavy DAX measures or from complex Power Query transformations before loading? From your description it sounds like the model needs a proper star schema and cleaner ETL steps. In many operational Power BI reports the common issue is wide tables and expensive calculated columns that slow refresh and make maintenance hard. Refactoring the model into clear fact and dimension tables usually improves both refresh speed and report performance. I can audit the PBIX, simplify the Power Query steps, and rewrite heavy DAX so measures calculate faster. I also make sure incremental refresh works correctly with the gateway and workspace deployment so the model stays stable in Power BI Service. Hope to discuss more on chat. Best, kosta

@saikishorekalari

Hello there, I recently optimised a comprehensive Power BI data model and streamlined operational datasets for enhanced performance—please review my profile for examples. I can refactor your existing reports into a clean star schema using advanced Power Query and targeted SQL adjustments to ensure efficient incremental refreshes. By rewriting expensive DAX measures, I will ensure your calculations stay accurate while making the ongoing maintenance painless and significantly faster. You will receive the redesigned .pbix file deployed to your target workspace with the gateway and role-based security configured, along with a concise summary highlighting the specific performance gains achieved.

@subaigfalcon

Hello, My name is Sartaj, and I am an experienced Power BI consultant with over 7 years in data analytics and visualization. I specialize in optimizing operational datasets, improving report performance, and designing clean, user friendly dashboards. I can audit your current PBIX, refactor tables into a star schema, rewrite slow DAX measures, and streamline Power Query steps for faster refreshes and easier maintenance. I also have experience tuning SQL views and implementing incremental refresh with gateways for reliable deployment. I will deliver a fully optimized PBIX with documented tables, measures, and relationships, along with a summary of improvements and performance gains. My goal is to make your reports faster, accurate, and effortless to maintain. I can deliver the redesigned PBIX, optimized queries, deployment, and a summary of improvements within 1 week. Excited to collaborate, Sartaj Ullah

@SmartOfficer

Hello, If your current Power BI model is slowing down refreshes, creating heavy maintenance work, or limiting reporting accuracy, I can help you stabilise and optimise it quickly. I specialise in restructuring large operational datasets into high-performance, scalable Power BI solutions that are easier to manage and faster to refresh. I will begin with a focused audit of your existing PBIX to identify model design issues, inefficient DAX logic, and unnecessary transformation steps. Then I will redesign the data model using a clean star schema approach, optimise measures and calculated columns, and streamline Power Query to support reliable incremental refresh. Where required, I can also fine-tune underlying SQL objects to improve overall data pipeline performance. Beyond optimisation, I can handle the full deployment cycle — from publishing to the target workspace, configuring the on-premises gateway, and applying role-based security — ensuring your reporting environment is both stable and production-ready. You will receive structured documentation and a clear summary of performance gains so your team can confidently maintain the solution. I am used to working with tight delivery timelines and complex BI environments. After reviewing your current model and data dictionary, I can confirm an accurate completion plan and may be able to improve on your two-week target. Let’s connect and discuss your performance goals. Best regards, Nadeera

@ajamshad162

As a professional who has delivered over 20 successful projects across multiple domains, I bring to the table extensive experience in data analysis and modeling. I have a deep understanding of Power BI and have worked extensively with large operational datasets, which aligns perfectly with your project requirements. My previous work has involved auditing and optimizing Power BI models to enhance performance and usability, making me adept at revamping data models to ensure faster refreshes, accurate calculations, and low-maintenance operations. In addition to my technical skills, you can rely on my detail-oriented approach that stresses on deadline-driven, quality deliverables. Your project mandates advanced DAX and M language proficiencies which I possess. Additionally, my competency in SQL objects matches what may be required for tweaking underlying views or stored procedures. Choosing me for this project will mean having a well-rounded professional who can consolidate Power Query steps, parameterise them for incremental refresh, deploy the optimized model with configured gateway adhering to role-based security protocols while providing you a concise summary of changes made and gained performance. Let's leverage my skills together; I look forward to building something great!

@bharuka23

I've optimized data models and Power BI reports handling 100M+ daily transactions. Happy to audit and refactor your PBIX. What I'll deliver: Data Model Redesign: - Audit current model for performance bottlenecks - Refactor into clean star schema (fact + dimension tables) - Remove unnecessary calculated columns, move logic to measures - Document all tables, relationships, and measures DAX Optimization: - Rewrite expensive measures using SUMMARIZE, CALCULATE patterns - Replace iterators with aggregations where possible - Add measure folders and descriptions for maintainability Power Query Refactoring: - Consolidate steps, remove redundant transformations - Parameterize connections for environment flexibility - Set up incremental refresh on large tables Deployment: - Publish to workspace with gateway configuration - Apply row-level security as needed - Test refresh reliability SQL Adjustments: - Optimize underlying views/stored procedures if needed - Push filtering upstream to reduce data loaded Deliverables: - Redesigned .pbix with documentation - Refined Power Query + SQL objects - Deployed to workspace with gateway - Summary of changes + performance benchmarks Can you share approximate row counts and current refresh times? That helps me estimate improvement potential.

@demivision

Dear Employer, Thank you for outlining your Power BI optimization needs. As DemiVision, LLC, we specialize in transforming complex operational datasets into high-performing, maintainable Power BI solutions. We understand the importance of fast refresh times, accurate calculations, and robust, scalable data models—especially when dealing with large, operational data. Our team has extensive experience auditing and refactoring PBIX files, implementing star schemas, and streamlining DAX and Power Query steps for maximum efficiency. We are well-versed in both advanced DAX and M, and can optimize or refactor SQL views and stored procedures as needed to support incremental refresh and ensure reliability via the on-premises gateway. Our approach emphasizes best practices in dimensional modeling and ETL, ensuring your reports remain both powerful and user-friendly. We propose a thorough audit of your current model, followed by hands-on refactoring: restructuring tables, optimizing measures, and consolidating queries. We'll document all changes, apply role-based security, and deploy the solution to your target workspace, providing clear evidence of performance improvements. If confidentiality allows, we can share examples of similar Power BI optimizations we've delivered for other clients. We look forward to collaborating and ensuring your operational data models are both efficient and easy to maintain.

@efanntyo

Hi there Thanks for posting this exciting project. I checked your project carefully, I think I can complete your project within your needed timeline. I am super professional in SQL, Data Warehousing, Data Visualization, Data Analysis, Power BI, ETL, Data Modeling, Data Management Please ping , I am always online here Thanks Efanntyo -.