Rajean Sivagnaneswaran
Coventry
Summary
Insight-driven Data Analyst with 4+ years’ experience in healthcare analytics, specialising in SQL engineering, ETL processes, and data visualisation. Proficient in SQL Server, Power BI, Tableau, and Excel, with strong capability in building automated data flows and dashboards. Skilled in cleaning, modelling, and interpreting large datasets for clear, actionable insights. Proven success delivering data quality solutions that improve reporting efficiency, including a Power BI dashboard adopted by multiple NHS Trusts.
Overview
6
6
years of professional experience
1
1
Certification
Work history
Commercial Analyst
UHCW NHS Trust
Coventry, West Midlands
03.2024 - Current
- Enhanced SQL capabilities to query across multiple databases, servers, and complex table relationships, enabling efficient extraction of large and distributed datasets.
- Built an automated Excel-SQL workflow to retrieve patient-identifying information instantly, performing real-time accuracy checks and eliminating significant manual data retrieval effort.
- Designed and built a Power BI Data Quality Dashboard for the Radiotherapy Team, enabling rapid identification and correction of data quality issues, ensuring on-time national submissions.
- Self-taught and independently developed Power BI expertise, becoming the first in the team to deliver a full Power BI solution; delivered team-wide training presentations.
Service Line Review Analyst
UHCW NHS Trust
Coventry, West Midlands
12.2022 - 03.2024
- Applied meticulous data validation and cleaning to ensure accuracy, producing precise reports that contributed to closing a 9% funding gap.
- Developed automated SQL stored procedures to refresh/load key tables daily, ensuring reports and dashboards always reflected up-to-date information.
- Experience in managing processes to store, and update large datasets via SQL, delivering up-to-date datasets within warehouses
- Developed automated reports using SQL, Excel, and SSRS, reducing reporting errors by 10%.
Assistant Service Line Review Analyst
UHCW NHS Trust
Coventry, West Midlands
03.2021 - 12.2022
- Updated SQL queries and implemented manipulation tools to manage databases efficiently.
- Conducted ETL operations to support dashboard development and insights.
- Monitored multiple data systems and dashboards, resolving discrepancies swiftly for accurate reporting.
- Completed training in SQL, Tableau, and Excel, becoming proficient in these tools within a year.
Accounting Intern
Premier Ltd
Southampton, Hampshire
01.2020 - 03.2021
- Identified and corrected accounting discrepancies, ensuring accurate financial reporting through strong attention to detail.
Education
Master of Science - Finance
University of Southampton
Southampton 09/2018 - 12/2019
Bachelor of Science - Economics
University of Portsmouth
Portsmouth 09/2015 - 09/2018
A-Levels -
Bay House Sixth Form
Gosport, Hampshire /2013 - /2015
GCSEs -
Crofton Secondary School
Fareham, Hampshire /2008 - /2013
Skills
Visualisation & Reporting
- Power BI: Data quality dashboards, performance dashboards, multi-team reporting
- Tableau: Interactive maps, dashboards, KPI's
- Excel: Power Query, IF's, automated templates
- Python (Basic): Pandas, NumPy, Scikit, statsmodel
- VBA (Basic): Workflow automation
- SQL Server (T-SQL, SSRS): Complex querying, stored procedures, table dependency tracking
- ETL & Automation: Automated table refresh processes, scheduled jobs, data pipelines
- Power BI: Data modelling, DAX, Power Query, Row-Level Security (RLS), scheduled refresh
Certification
Tableau 2022: Training for Data Science
Complete SQL Training Course
Timeline
Commercial Analyst
UHCW NHS Trust
03.2024 - Current
Service Line Review Analyst
UHCW NHS Trust
12.2022 - 03.2024
Assistant Service Line Review Analyst
UHCW NHS Trust
03.2021 - 12.2022
Accounting Intern
Premier Ltd
01.2020 - 03.2021
Master of Science - Finance
University of Southampton
09/2018 - 12/2019
Bachelor of Science - Economics
University of Portsmouth
09/2015 - 09/2018
A-Levels -
Bay House Sixth Form
/2013 - /2015
GCSEs -
Crofton Secondary School
/2008 - /2013