Kamasanisunil
Data Analyst
About
Data Analyst with 1+ years of experience transforming data into actionable business insights using SQL, Python (Pandas, NumPy), Power BI, DAX, and Excel. Skilled in data cleaning, data modeling, exploratory data analysis (EDA), KPI reporting, dashboard development, and data visualization, with hands-on experience in Power BI Service administration (scheduled refresh, gateways, Row-Level Security). Microsoft Certified: Power BI Data Analyst Associate (PL-300) and Fabric Analytics Engineer Associate (DP-600). Strong analytical, problem-solving, and stakeholder-communication skills.
Skills & Expertise (38)
Work Experience
Data Analyst
HCL TECH via Sysbig Technologies
Jan 2025 - Jul 2026
Developed and maintained 20+ interactive Power BI dashboards, enabling data-driven decisions for 4 business teams (~40 users). Built 100+ DAX measures, calculated columns, and KPIs to deliver performance-reporting metrics aligned to business requirements. Write SQL queries (joins, aggregations, filtering) to extract, validate, and analyze data from 5+ sources MySQL, SQL Server, Databricks, and Google Sheets โ feeding Power BI models. Performed data cleaning, validation, and preprocessing using Power Query and Python (Pandas, NumPy) on datasets of 10M+ records, improving data accuracy. Designed star-schema data models and optimized DAX, improving report load times by ~25%. Enhanced usability with drill-through, bookmarks, filters, and slicers, increasing self-service report adoption. Published and deployed reports to Power BI Service, configuring scheduled refreshes and On-Premises Data Gateways to maintain ~99% refresh reliability. Implemented Row-Level Security (RLS) and managed workspaces, permissions, and role-based access for governed data delivery. Conducted validation, testing, and QA before production, reducing reporting errors by ~20% and saving ~5 hours/week of manual effort. Administered Power BI workspaces, user access, and dataset refreshes across multiple teams, ensuring reliable and timely reporting. Configured and managed On-Premises Data Gateways and supported report and dataset deployment in Power BI Service. Maintained Row-Level Security (RLS) and troubleshot refresh, gateway, and connectivity issues, reducing incident resolution time by ~30%. Monitored Power BI capacity health and enforced data governance standards, sustaining ~99% refresh success. Collaborated with cross-functional developers and business stakeholders to resolve issues and provide end-user support. Documented administrative processes and best practices, standardizing reporting operations.
Education
Bachelor Of Technology - Rajiv Gandhi University of Knowledge and Technologies
2021 - 2025 ยท Afghanistan
Certifications
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Skills (38)
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