Your data, BI, and product teams work without clear ownership? I fix this. I audit your analytics, connect data to business goals, and build the BI system leadership actually uses. Recent results: - Reduced CAC 17% for B2B SaaS ($8M ARR) via multi-touch attribution - Replaced 30 manual Excel reports with automated Power BI dashboards - Consolidated 8 data sources into a single warehouse, saving 40h/week - Rebuilt GA4 tracking — eliminated 40% "not set" traffic One advantage over most consultants: I use AI throughout every engagement - audits, roadmaps, automated reporting. Work that used to take 6 weeks takes 2. You spend less time waiting, more time acting on insights. Stack: BigQuery, Looker Studio, Tableau, Power BI, dbt, Snowflake, Fivetran, GA4/GTM, Segment, ClickHouse, Python, SQL I work best with companies that have data but can't turn it into decisions. Typical engagement starts with an analytics audit or data strategy review. Want to discuss your project? Just DM me and we'll set up a call!

Hello, Myself, Debasis from Kolkata, have 9 years of experience in Oracle APEX (ver 4.2 - 24.2) mainly, have experience in SQL, PL/SQL, Frontend part (JavaScript, jQuery, CSS, HTML). I have worked on a few 3rd party API Integrations with Oracle APEX applications and worked on AOP, BI Publisher also. I have some knowledge in Oracle Fusion Cloud API Integration in Oracle APEX. Thanks, Debasis Kundu

I am Data Architect/Snr. Data Engineer with 12 years experience with RDBMS/NoSQL databases and processing large amounts of data. My experience related to enterprise level and high profile projects in the past, but now I'm helping startups and small-mid sized companies to achieve their goals! My core competences are: Data Modelling, Data Architecture on Cloud platforms, Database development, ETL and Business Intelligence, Database Administration Solution Architecture : Design of solution architectures for a data processing systems of various scale and purpose. Definition of up-to-date technical solutions including data storage, network, data processing (ELT/ETL), BI and AI/ML components. Process and methods definitions and optimizations. AI/ML : Amazon AI Services, LLM Integration (OpenAI, Gemini), AWS Bedrock, AWS Sagemaker, pgvector, Databricks Mozaic Data Modelling : Modelling of OLTP and Datawarehouse systems. It could be design of new schema, normalization/denormalization of existing model, Enterprise datawarehouse design based on Kimball/Inmon, Data Lake and Data Vault architectures, Modernization of existing data landscape. Data Lakes : Modern datalakes built on cloud storages as GCS/S3/Azure Datalake Gen2 with Databricks, AWS Glue, Trino, Apache Iceberg DBA Activities : DB migrations, Backup & Recovery, Upgrades, Instance configurations, DB Monitoring, Horizontal scaling, Streaming/BDR replications. Sharding with postgreSQL extensions. Data Integration and ETL : Traditional batch ETL - Informatica, Talend, AWS Datapipeline, Matillion ETL Serverless ETL - AWS Lambda, AWS Glue, Batch, AWS DMS, Google Cloud Functions, Databricks Streaming ETL - Apache NiFi, Kafka, Kinesis streams SaaS ETL - Stitch, Alooma, Fivetran, Airbyte BI/data layers - dbt/Prefect Direct loading with DBMS tools & scripting Data Governance and MDM: Design and implementation of solutions based on Informatica DG/MDM, Alation, Atlan, custom dataquality solutions. BI Systems : Design of BI systems and implementation. I had experience with major industry leading tools as Tableau, PBI, Looker and cloud alternatives. Additionally i had experience with old-style reporting solutions from SAP, Qlick, Jasper. Cloud containerization and deployment : Docker, Mesos/Kubernetes Java development : EE/SE , Spring, Hibernate, RESTful APIs, Maven Clouds : - Cloud migrations (AWS, Azure, GCP) - Cloud infrastructures (VPCs, EC2, Loadbalancing, Autoscaling, Security in AWS/GCP) Please note that minimum engagement is part-time (20 hrs/week) and month long, this will ensure the quality of delivered solution and mutual benefit. Thank you for getting to the end of this boring details and looking forward working on exciting projects together :) Best Regards, Yegor.

Data is as valuable as the decisions it enables. Is your leadership team waiting weeks for reports? Are your data pipelines constantly breaking, or is your cloud spend spiraling out of control? I don't just "write ETL", I build the scalable, automated engines that turn raw, messy data into real-time business intelligence. With over 6,000+ hours on Upwork and a 100% Job Success Score, I help enterprises move from manual data chaos to a streamlined, modern data stack. My Core Focus: - Microsoft Fabric: End-to-end implementation (OneLake, Data Factory, Lakehouse/Warehouse). - Databricks: Building robust Medallion architectures using Spark, Delta Lake, and Unity Catalog. - Automated ETL/ELT: Designing resilient pipelines with Airflow, Azure Data Factory, and Python. - Enterprise BI: High-performance Power BI dashboards using Direct Lake and advanced DAX. Why Clients Choose Me: I bridge the gap between technical complexity and business ROI. Whether you are migrating from legacy SQL servers to the cloud or optimizing a complex Databricks environment, I focus on two things: Performance and Clarity. Technical Ecosystem: - Languages: Python, SQL, PySpark, DAX - Platforms: Microsoft Fabric, Azure Synapse, Databricks, Snowflake - Tools: Airflow, ADF, Power BI, Tableau, PostgreSQL/MySQL Ready to transform your data infrastructure into a strategic asset? Click the "Message" or "Book Consultation" button, and let’s discuss your architecture.

Your marketing spend is scaling, but your profit margins aren't following. Your teams are drowning in spreadsheets, and your current dashboards create more questions than they answer. 𝗜 𝗳𝗶𝘅 𝘁𝗵𝗶𝘀. As a Data Scientist and Marketing Analytics Expert with over 12 years of experience, I help business owners stop guessing and start scaling. With an M.S. in Statistics (Texas A&M) and deep expertise in Tableau, SQL, and R, I build the automated data pipelines and executive dashboards that leadership teams actually use to drive revenue. I don't just hand over charts, I treat your marketing like a highly optimized production line to eliminate waste and maximize profit. 🎯 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿 (𝗢𝘂𝘁𝗰𝗼𝗺𝗲𝘀 𝗬𝗼𝘂 𝗖𝗮𝗻 𝗘𝘅𝗽𝗲𝗰𝘁):   1. 𝗘𝘅𝗲𝗰𝘂𝘁𝗶𝘃𝗲 𝗧𝗮𝗯𝗹𝗲𝗮𝘂 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀: Clean, interactive dashboards that put profit-driving KPIs front and center (CAC, LTV, ROAS, Payback Period, Conversion).   2. 𝗠𝗮𝗿𝗸𝗲𝘁𝗶𝗻𝗴 𝗦𝗽𝗲𝗻𝗱 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Aligning your marketing data with profit metrics, historically delivering 15–30% ROI improvements for my clients.   3. 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗲𝗱 𝗥𝗲𝗽𝗼𝗿𝘁𝗶𝗻𝗴 𝗣𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀: Replacing manual, error-prone spreadsheet work with automated SQL/R data workflows that speed up decision cycles by 20–50%.   4. 𝗣𝗿𝗲𝗱𝗶𝗰𝘁𝗶𝘃𝗲 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴 & 𝗦𝗲𝗴𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻: Uncovering your most high-value customers and most profitable acquisition channels using advanced statistical analysis. 🏆 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲?   • 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗘𝘅𝗽𝗲𝗿𝘁: 5+ years of delivering 5-star results on Upwork.   • 𝗦𝘁𝗮𝘁𝗶𝘀𝘁𝗶𝗰𝗮𝗹 𝗥𝗶𝗴𝗼𝗿: M.S. in Statistics ensures my models and insights are mathematically sound, not just superficial vanity metrics.   • 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗣𝗮𝗿𝘁𝗻𝗲𝗿: I don't just build what you ask for; I advise on what you actually need to hit your growth targets. 🛠️ 𝗖𝗼𝗿𝗲 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 & 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀:   • 𝗕𝗜 & 𝗩𝗶𝘀𝘂𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Tableau (Dashboard Design, Blending, Automation, Interactivity)   • 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 & 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀: R, SAS, Predictive Modeling, Linear Regression, Forecasting, Cohort Analysis, Propensity Modeling   • 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: SQL, ETL Pipelines, Automated Reporting, Data Modeling, AWS, Athena, PostGres, Make   • 𝗗𝗼𝗺𝗮𝗶𝗻 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Marketing Analytics, E-commerce, Manufacturing, Campaign Reporting Ready to stop guessing and scale with clarity? Send me a message or book a consultation to discuss your current data setup and how I can turn your analytics into a profit center.

I hold a Master of Science in Computer Science from the Illinois Institute of Technology and a Microsoft Certified Developer credential. Over 12+ years, I've partnered with reputable US-based clients to architect and deliver web and mobile applications, ecommerce platforms, backend systems, and AI-powered solutions that support real business operations across industries — on time, on budget, and built to last. When mid-size and enterprise teams need a senior developer they can trust with complex, high-stakes projects — they hire me. What I do best: - .NET, PHP Python full-stack development — robust, secure, and enterprise-grade - Mobile app development (iOS & Android) from concept to launch - API design, development, and seamless third-party integrations - SQL Server & MySQL — database architecture, optimization, and performance tuning - AI & machine learning integration — intelligent features built into real products - Legacy system modernization, code audits, and architecture consulting - Full product lifecycle ownership: architecture → development → testing → deployment across Windows, Linux, and Mac environments Need more than one developer? I can provide a dedicated team of experienced developers and project managers for end-to-end delivery — giving you agency-level capacity with senior-level oversight, accountability, and a single point of contact you can trust. Who I work with: Mid-size and enterprise teams who need a technically strong, communicative partner — not someone they have to babysit. Whether you're scaling an existing platform, modernizing a legacy system, integrating AI into your product, or building something from the ground up, I bring the experience and leadership to move fast without cutting corners. Why clients keep coming back: I don't just write code — I bring product thinking, technical leadership, and a genuine investment in your business goals. I ask the right questions upfront, communicate proactively, flag risks before they become expensive, and deliver consistently. My clients value long-term partnerships, not one-and-done transactions. Got a project in mind? Send me a message and I'll get back to you within a few hours.

🟢 Available Now | 100% Job Success 🔥 𝗠𝗬 𝗗𝗔𝗧𝗔 𝗠𝗔𝗦𝗧𝗘𝗥𝗬 𝗣𝗔𝗖𝗞𝗔𝗚𝗘 - 𝗢𝗣𝗧𝗜𝗠𝗜𝗭𝗘 𝗬𝗢𝗨𝗥 𝗗𝗔𝗧𝗔 𝗜𝗡𝗙𝗥𝗔𝗦𝗧𝗥𝗨𝗖𝗧𝗨𝗥𝗘 𝗜𝗡 𝗝𝗨𝗦𝗧 𝟰 𝗪𝗘𝗘𝗞𝗦 𝗪𝗜𝗧𝗛 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘 𝗔𝗦𝗦𝗨𝗥𝗔𝗡𝗖𝗘: ✓ Data Collection & Analysis ✓ Optimized Data Retrieval ✓ Designing & Implementing Database Objects ✓ Performance Tuning ✓ Complex Query Handling (MS Server, MySQL, Oracle, Access etc) ✓ Develop Stored Procedures, Functions, Triggers (T-SQL, PL/SQL etc) ✓ Develop Entity-Relation Diagrams (ERD) (tools: PowerDesigner, ER studio, draw.io) ✓ Data Migration Between Different RDBMS (for example Oracle and MS SQL Server) ✓ Remove duplicates from database ✓ Create all Necessary Views, Indexes ✓ Upload Data From Different Sources (Excel, CSV, another databases) ✓ Data Visualization (Power BI) ✓ Data Quality Assurance ✓ Daily Updates ✓ 30-Day Post Project Chat Support ✓ Over 4k total working hours on Upwork + 🎁𝗕𝗢𝗡𝗨𝗦𝗘𝗦: ✓ Schema Audit: Detailed audit and report to enhance your database structure. ✓ Build Reports and Visualizations: Gain clarity with custom reports and visualizations to provide clear, actionable insights. ✓ Monthly Performance Review: Regular reviews and optimizations for sustained performance. 🤝 𝗠𝗬 𝗚𝗨𝗔𝗥𝗔𝗡𝗧𝗘𝗘: I guarantee measurable improvements in data retrieval times and data accuracy, providing you with clear, actionable insights. If you're not happy with the progress within the first month, I will work with you at no additional cost until we meet your expectations. 𝗣𝗥𝗢𝗩𝗘𝗡 𝗧𝗥𝗔𝗖𝗞 𝗥𝗘𝗖𝗢𝗥𝗗: I have a proven track record of improving data retrieval efficiency and data integrity in previous roles, which means you can trust in the results I deliver. 𝗚𝗨𝗔𝗥𝗔𝗡𝗧𝗘𝗘𝗗 𝗥𝗘𝗦𝗨𝗟𝗧𝗦: I guarantee measurable improvements in data retrieval times and data accuracy, providing you with clear, actionable insights. 𝗖𝗢𝗦𝗧 𝗘𝗙𝗙𝗜𝗖𝗜𝗘𝗡𝗖𝗬: By optimizing your data processes, I help reduce operational costs through improved data management and reduced redundancy. 𝗘𝗡𝗛𝗔𝗡𝗖𝗘𝗗 𝗗𝗘𝗖𝗜𝗦𝗜𝗢𝗡-𝗠𝗔𝗞𝗜𝗡𝗚: My expertise ensures that your data infrastructure will provide accurate, timely, and actionable insights, driving strategic business decisions. 𝗙𝗟𝗘𝗫𝗜𝗕𝗜𝗟𝗜𝗧𝗬 𝗔𝗡𝗗 𝗔𝗗𝗔𝗣𝗧𝗔𝗕𝗜𝗟𝗜𝗧𝗬: I adapt quickly to your existing systems and processes, minimizing disruption and maximizing integration efficiency. 𝗜𝗠𝗠𝗘𝗗𝗜𝗔𝗧𝗘 𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗜𝗟𝗜𝗧𝗬: I’m immediately available for new opportunities, ensuring a swift start to your projects. 𝗛𝗜𝗚𝗛 𝗥𝗘𝗦𝗣𝗢𝗡𝗦𝗘 𝗥𝗔𝗧𝗘: My response rate is within 1 hour, ensuring I’m always in touch while discussing work opportunities and during project execution. You can start with: 🔍 𝗙𝗥𝗘𝗘 𝗦𝗖𝗛𝗘𝗠𝗔 𝗔𝗨𝗗𝗜𝗧 I conduct a detailed review of your current database schema, identifying key opportunities for improvement. You'll get actionable insights and recommendations with minimal effort from you! 💬 𝗦𝗧𝗔𝗥𝗧 𝗔 𝗖𝗛𝗔𝗧 𝗧𝗢 𝗗𝗜𝗦𝗖𝗨𝗦𝗦 𝗛𝗢𝗪 𝗠𝗬 𝗦𝗞𝗜𝗟𝗟𝗦 𝗔𝗡𝗗 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘𝗦 𝗔𝗟𝗜𝗚𝗡 𝗪𝗜𝗧𝗛 𝗬𝗢𝗨𝗥 𝗡𝗘𝗘𝗗𝗦. 𝗜'𝗠 𝗢𝗡𝗟𝗜𝗡𝗘 𝗔𝗡𝗗 𝗥𝗘𝗔𝗗𝗬 𝗧𝗢 𝗖𝗛𝗔𝗧! 🛠️ 𝗦𝗞𝗜𝗟𝗟𝗦 - SQL Query Optimization - Database Normalization - Data Profiling & Analysis - Data Integration - Performance Tuning - Schema Design & Auditing - Automated Reporting - Data Visualization - Advanced SQL Training - Power BI - SSRS - SQL Server - Data Quality Management - Complex Query Handling - Python (Pandas, NymPy) - PowerShell scripting

If your data pipelines are slow, breaking, or just not delivering what the business needs — that's the problem I fix. I'm a Senior Data Engineering Consultant with 10+ years of enterprise delivery across telecom, banking, retail, manufacturing, and fintech. I've built and led data platform projects for clients like Philip Morris International, British American Tobacco, UBL, Etisalat, and Talbots — handling everything from raw ingestion to business-ready analytics. What I deliver: — Cloud data platforms on Azure (ADF, Databricks, Synapse) and Snowflake — End-to-end ETL/ELT pipelines using Informatica, Airflow, and Python — Data warehouse design, data modeling, and Data Vault architecture — BI reporting and analytics layers (Power BI, SQL) — Legacy system modernization and cloud migration — Data governance, lineage, and quality frameworks I run sudoTrek, a data engineering agency with a team of specialists, which means I can take on larger scopes when needed — not just individual tasks. I work with mid-size to enterprise clients who need someone who understands both the technical depth and the business outcome. I don't just build pipelines — I make sure the data actually serves the people using it. Available for long-term contracts and complex projects. Minimum engagement: $10K. Let's talk about your data challenge.

My Degree: More than 15 years of experience working for 1st level enterprises. My Speciality: Solve problems. My Proof: See my UpWork work history and feedback

I have more than 18 years of work experience in the Information Technology field covering software development, system analysis and software quality control and I have worked during this period on many projects in the middle east, UK, USA and Australia. In addition to that I got MSc in Web Technology. Main skills are; SharePoint Online, ASP.NET MVC, .NET core, Power Apps, MS Flow, Copilot Agents and more.