Abirajh Arulrajah
@abirajharulrajah
Data Analyst using SQL, Python, Excel, and Tableau to extract insights from large datasets.
United KingdomWhat I'm looking for
I’m a Data Analyst specialising in extracting insights from large datasets. With experience across SQL, Python, Excel, and Tableau, I turn complex data into clear, stakeholder-ready decisions.
At the Office for National Statistics, I optimized data integrity for national records, ensuring 100% compliance through rigorous audit and quality assurance standards. I also identified and resolved discrepancies in complex entries while maintaining detailed error logs to protect data reliability.
In my role as a Research Executive at Kinetik Wellbeing, I engineered data-driven marketing strategies using comparative statistical analysis and SQL. I synthesised complex market research into presentations, using Excel-based modelling to support entry into new markets, and used analysis of competitor retail pricing to uncover strategic advantages.
As an MSc Bioinformatics graduate, I’ve applied genomic data analytics with a strong focus on accuracy and reproducibility. I’ve built technical reporting and end-to-end data workflows—cleaning, transforming, modelling, and visualising—to quantify biological and microbiological trends and support data-driven outcomes.
Experience
Work history, roles, and key accomplishments
Research Executive
Kinetik Wellbeing
Mar 2024 - Apr 2024 (1 month)
Engineered data-driven marketing strategies to expand brand awareness and improve market penetration. Performed competitor pricing and retail presence analysis using SQL and comparative statistics, then translated findings into stakeholder presentations with Excel-based modelling.
Census Officer
Office for National Statistics
Feb 2021 - Jun 2021 (4 months)
Maintained 100% compliance for national census records through rigorous audit and quality assurance. Identified and resolved discrepancies in complex entries using detailed error logs, and partnered with engineering and operations teams to streamline data collection workflows.
Delivered reliable customer service while working closing shifts that required shop cleaning and preparation. Managed inventory control and stock replenishment with strong organisational skills and attention to detail.
Education
Degrees, certifications, and relevant coursework
University of Leicester
Master of Science in Bioinformatics, Bioinformatics
2024 - 2025
Completed an MSc in Bioinformatics with rigorous genomic data analytics focused on statistical methods to ensure data accuracy. Used Python and advanced Excel functions to analyze biological and microbiological trends and authored technical reports.
University of Leicester
Bachelor of Science in Biological Sciences, Biological Sciences
2019 - 2024
Earned a BSc in Biological Sciences with a final year project on ethical issues and cultural background related to genetic engineering on human embryos. Studied abroad in Seoul, South Korea, building cross-cultural communication and adaptability.
WQE College
2012 - 2018
Activities and societies: A Levels: German, Biology, Mathematics; GCSEs: Mathematics and Computer Science (11+).
Completed secondary education including A Levels in German, Biology, and Mathematics, and GCSEs including Mathematics and Computer Science. Demonstrated early academic focus in science and quantitative subjects.
Tech stack
Software and tools used professionally
Availability
Location
United KingdomAuthorized to work in
Job categories
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