Rooba Thiyagarajan

Data Analyst

Tiruppur, Tamil Nadu, India 3+ yrs exp 86 · Excellent

About

Detail-oriented and impact-driven Data Analyst with 3 years of technical experience specializing in data collection, cleaning, SQL query optimization, and Business Intelligence (BI) dashboard creation. Proven success in performing exploratory data analysis (EDA), validating data integrity, and automating reporting workflows using Advanced Excel, Power BI, and AI-powered analytics. Skilled at bridging cross-functional business requirements with technical execution to translate complex multi-source datasets into actionable executive insights.

Skills & Expertise (27)

Data Analysis Advanced

8.1/10

Years Exp

Data Cleaning Advanced

8.0/10

Years Exp

SQL Advanced

8.0/10

Years Exp

Exploratory data analysis Advanced

7.8/10

Years Exp

KPI Tracking Advanced

7.5/10

Years Exp

Power BI Intermediate

7.0/10

Years Exp

Data Documentation Advanced

7.0/10

Years Exp

ETL Pipelines Intermediate

7.0/10

Years Exp

Stakeholder Reporting Intermediate

6.5/10

Years Exp

Google Analytics Intermediate

6.0/10

Years Exp

GitHub MySql Git Scrum workflows Agile Execution SDLC Trend & Anomaly Detection Requirements Gathering Postman API Testing process automation Business Reporting Advanced Excel Data Profiling Query Optimization Quality Validation Data Ingestion SQLite

Work Experience

Data & Operations Analyst

Sierra ODC Pvt. Ltd.

Jan 2023 - Jan 2025

Wrote and optimized complex SQL queries across high-throughput relational databases to extract, manipulate, and analyze enterprise transactional records, systematically reducing backend system latency. Engineered automated data ingestion and reliability frameworks using Polly circuit-breaker logic, ensuring continuous data streaming, 100% data integrity, and zero loss during third-party API transfers. Leveraged AI-powered tools (ChatGPT, Claude) and prompt engineering to automate routine diagnostic scripting, documentation workflows, and ad-hoc report generation, cutting weekly reporting cycle times. Designed and deployed a structured File Drawing Management module to securely catalog, index, and audit massive volumes of unstructured document data for corporate stakeholders. Executed rigorous quality assurance and data validation loops across system environments, proactively detecting and resolving discrepancies prior to production releases.

Data Integrity & Quality Assurance Specialist

Toppan Merrill

Mar 2022 - Mar 2023

Cleaned and validated complex metadata and rule-based XML document structures, ensuring strict compliance with regulatory enterprise standards. Developed automated data structure validation algorithms, eliminating manual review bottlenecks and maintaining accurate, high-quality data pipelines under tight timelines. Partnered with business and technical teams to define clear data requirements, document data definitions, and standardize reporting outputs.

Data & Operations Systems Intern

Soft Loft Technologies

Jan 2021 - Jan 2021

Mapped internal business endpoint behaviors and data flow matrices to identify trends, patterns, and transactional anomalies. Established automated data accuracy verification steps to maintain high transactional database integrity and resolve data discrepancies proactively.