Mary Priscilla Reagan
Northolt,London
Summary
Strategic BI Leader with 15+ years of experience driving data maturity across E-commerce, Insurance, and Healthcare. Expert in transitioning legacy enterprise reporting into the Modern Data Stack (Databricks, dbt, Cloud BI). Proven track record in leading multi-phase platform migrations and pioneering GenAI-integrated BI solutions (OpenAI) to automate self-service. Adept at bridging the gap between engineering tribes and commercial leadership to build scalable, high-performing data cultures. Takes on challenging new role harnessing interpersonal skills, collaboration and problem-solving. Driven to deliver high-quality service and consistent results.
Overview
15
15
years of professional experience
4
4
years of post-secondary education
Work history
Senior Business Intelligence Developer
Gousto
London
2021.01 - 2026.03
Strategic lead for BI platform evolution and cross-functional data modeling for a high-growth subscription platform
Strategic BI Platform Evolution
- Staged BI Transformation: Orchestrated a two-phase migration strategy, first consolidating Periscope into Sisense, followed by a high-impact transition from Sisense to Databricks AI BI.
- Tooling Advocacy: Led comprehensive POCs to evaluate BI vendors; presented technical trade-offs to senior leadership to guide long-term infrastructure investment.
- Modernized Analytics: Re-engineered BI landscape to leverage Databricks’ native AI capabilities, moving business toward real-time, high-performance reporting.
Data Modeling (dbt) & BI
- Tribe Alignment: Partnered with Acquisition, Growth, and Retention Tribes to transform raw business logic into reusable, governed data models using dbt (Cloud & Core).
- Automation of Shadow BI: Successfully migrated high-risk, manual Google Sheet reporting into automated Databricks dashboards, ensuring data integrity and a single source of truth.
- Operational BI: Collaborated with Factory and Customer Care teams to model complex operational data, providing visibility into supply chain efficiency and complaint metrics.
AI Innovation & Leadership
- GenAI Assistant (OpenAI): Developed a natural language query tool for analysts and stakeholders, successfully diverting 10–15% of ad-hoc queries to self-service.
- People Leadership: Actively mentored junior developers and led technical onboarding for new team members, establishing best practices for modeling and SQL.
- Security & Governance: Implemented Row Level Security (RLS) and PII data isolation in BI layer, working closely with Data Governance to maintain strict privacy standards and GDPR compliance.
Senior BI Consultant
Cognizant Worldwide Limited
London, United Kingdom
2011.09 - 2021.07
Led onsite/offshore delivery for global enterprise clients in UK and internationally.
- Global Insurance Rollouts: Spearheaded reporting for a Leading Global Insurance Firm, covering complex domains including Reinsurance, Casualty, Property, and Health.
- Enterprise Administration: Managed and optimised Cognos Analytics assets as Lead Admin, ensuring 24/7 availability for critical financial reporting.
- Legacy Visualization: Delivered high-complexity dashboards using QlikView and QlikSense for Travel and Healthcare sectors.
- Regulatory Compliance: Played a key role in implementing GDPR regulations across reporting and analytics layers.
Education
Bachelor of Engineering (B.E.) - Electronics and Communication
Anna University
Chennai 2006.06 - 2010.05
Skills
- Modern BI Stack: Databricks (AI BI / SQL), dbt (Cloud & Core), Sisense, Periscope, Semantic Modeling
- Legacy Enterprise BI: IBM Cognos Analytics (Admin/All Studios), QlikSense, QlikView
- AI & Innovation: GenAI/LLM Integration (OpenAI/GPT), Natural Language Querying (NLQ), Python
- Data Modelling: Advanced SQL, Informatica PowerCenter, Star/Snowflake Schema Design
- Cloud & DBs: Snowflake (Exposure), SQL Server, DB2, Netezza, Oracle Exadata
- Ops & Governance: GitHub, Jira, CI/CD, PII Isolation, Row Level Security (RLS), GDPR Compliance
Other Details
- Work Permit UK: Skilled Worker (Eligible for ILR July 2026)
Timeline
Senior Business Intelligence Developer
Gousto
2021.01 - 2026.03
Senior BI Consultant
Cognizant Worldwide Limited
2011.09 - 2021.07
Bachelor of Engineering (B.E.) - Electronics and Communication
Anna University
2006.06 - 2010.05