Open to opportunities

Bala Rajesh Aitha

@balarajeshaitha

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Data analyst with 3+ years driving insights using SQL, Power BI, Python, and PySpark.

India

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What I'm looking for

I’m looking for a Data Analyst role where I can build production-ready data assets, deliver Power BI dashboards, optimize SQL, and continuously improve data quality—ideally in an Agile environment with AI-assisted automation.

I’m an IT professional with 3 years of experience in Data and Analytics, focusing on extracting, analysing, and visualising data through Power BI. I combine strong database and Business Intelligence foundations with hands-on development using SQL, Python (Pandas, NumPy, MatPlotLib), and PySpark to build data assets that make decisions easier.

In my most recent role at HSBC, I teamed up with Head of Data & Analytics and Product Management to define requirements, develop data assets on Hadoop with PySpark and SparkSQL, and put them through production pipelines. I quantified data quality (completeness, accuracy, conformity) and improved data consistency by up to 30%, while also building metadata and visualizing data lineage using Solidatus. Earlier, at GlobalLogic, I improved process efficiency by 35% by optimizing SQL for complex datasets and delivered 12+ Power BI dashboards with DAX-based computed columns, plus ongoing mentoring for onboarding each quarter.

Experience

Work history, roles, and key accomplishments

Data Analyst

ManpowerGroup

Aug 2022 - Dec 2022 (4 months)

Client: HSBC

Built Hadoop-based data assets using PySpark and SparkSQL and deployed them to production pipelines. Improved data quality to 100% and increased data consistency by up to 30% by addressing completeness/accuracy/conformity issues, and developed data lineage and data models using Solidatus.

Pyspark SparkSQL Hadoop Data Quality ETL ELT Data Modeling Data Lineage

Analyst

GlobalLogic Technologies Pvt. Ltd.

Jul 2018 - Jan 2021 (2 years 6 months)

Optimized SQL queries to improve data extraction, analysis, and visualization efficiency by 35%, and built Power BI reports and dashboards. Authored DAX expressions, developed 12+ dashboards for performance metrics, and trained/mentored five members per quarter.

SQL Power BI DAX Data Extraction data transformation Dashboard Development Automated Refresh Performance Metrics

Education

Degrees, certifications, and relevant coursework

University of Greenwich

Master of Science, Big Data and Business Intelligence

2021 - 2022

Completed an MSc in Big Data and Business Intelligence at the University of Greenwich, covering modules such as Data Visualization, Big Data, Data Warehousing, and Business Intelligence.