Abhishek Harikumar Narayanan

Analytics Manager(Cs Analytics) Wavemaker Global @WPP Media

London, GB

Implemented and integrated QA processes into the data pipeline infrastructure in Google BigQuery using SQL to monitor and validate data flow for key accounts including Paramount+, Sky Showtime, and Audible, improving overall data accuracy by 40% and safeguarding the reliability of over £400M in data used for business modelling and insights- Developed a Python-based ETL pipeline using Pandas and the BigQuery API to extract, clean, stage, and transform financial datasets for modelling, with Loguru for process logging and an ODBC connector to transfer validated data into Excel for efficient cross-checking by relevant teams, achieving Paramount+’s 99% accuracy standards for quarterly and monthly reporting- Optimised SQL queries with recursive common table expressions, advanced windowing functions, stored procedures, and materialised views in Google BigQuery, reducing slot time by 12 minutes on datasets of 4M+ rows, using EXPLAIN ANALYZE and Cost-Based Optimisation- Created reporting solutions for nine localised markets in Excel and Google Sheets using array formulas, lookups, and INDEX-MATCH to present data in a clear and actionable format, while implementing an event-driven script to refresh multiple BigQuery-linked pages, ensuring up-to-date data availability for teams and clients- Reported to the Global Data Lead, delivering reports and analyses for client leadership (Global Client Partner and Global Client Director) while managing reporting requirements across nine international markets (EMEA, LATAM, Americas, and Australia) in collaboration with Account Directors and Managers- Clients: Paramount+, Audible, SST- Technical Stack: Python | SQL | Google Sheets | Big Query | GCP | Adverity | Power BI.

University of York

Master of Science - MSc

Visvesvaraya Technological University

Bachelor of Engineering(BEng)