Grigory Koftaylov
Business Intelligence Technical Lead @Blue Arrow
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WORK HISTORY
Business Intelligence Technical Lead @Blue Arrow
London, GB
Developed and implemented Power BI reporting solutions, enabling self-service analytics for 200+ managers and business users.(90% decrease in ad hoc report requests, 40+ hours saved per month)• Designed and launched 25+ complex reports in Finance, HR, and Operations domains, optimising business processes, improving key KPIs across company.(up to 25% improvement in key business KPIs, positive revenue impact from new business opportunities)• Built and maintained data models by integrating data from 6+ systems, enhancing data accuracy and reporting speed, delivering one source of truth.• Collaborated with business stakeholders to identify data-driven solutions, ensuring reports are aligned with strategic objectives.• Led BI governance, defining best practices and ensuring data consistency across the organization.• Partnered with Data Team to design and build a scalable data warehouse, improving data accessibility and reporting efficiency.(25+ DIM tables, 10+ Fact tables, 20+ Aggregation tables)• Provided training and support to C-level executives and business teams, improving data literacy and decision-making.
EDUCATION
Saratov State Technical University
Master's degree, Mathematics, Electronics, Physics, and Programming
SKILLS
ABOUT GRIGORY KOFTAYLOV
Data should tell a story — I make sure it’s the right one.I’m a Senior BI Developer specialising in Power BI, Azure, Fabric, and SQL, with a proven ability to turn complex data into clear, actionable insight. I design scalable BI solutions that automate reporting, enhance data accuracy, and empower faster, smarter decision-making across the organisation.I believe in precision, performance, and purpose — building data solutions that deliver real business impact.
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