Experience

• 

  Metlife

  Sept 2003 - May 2008

  Lead programmer

  Cognizant Technology Solutions• Technology rewrite of the Financial Management Systems from COBOL/ADSO/IDMS to COBOL/CICS/DB2, which saved the Company 30M+ dollars in licensing costs. NEF-Integration lead

• 

  Lowe's companies, inc.

  May 2008 - Mar 2013

  Solutions architect

  Cognizant Technology Solutions• Manager/SME for several Mainframe projects and enhancements to the Merchandising and Marketing, Logistics, Forecasting, and Demand applications

• 

  Dr pepper snapple group

  Mar 2013 - Mar 2014

  Solutions architect

  • Created custom pipelines and insights reporting that included the Manual Punches Defect, Missed Punches, Dual Worker Transfers, Punch Rounding, Overtime etc.

• 

  Children's health

  Apr 2014 - Sept 2014

  Senior data engineer

  • Deployed new ETL pipelines for analytics dashboards to administer Schedule Variance Improvement planning, minimizing schedule changes by 34%. Constructed new dashboards for Payroll, Finance, Legal and Labor teams

• 

  At&t

  Sept 2014 - Jun 2019

  Senior data engineer

  • Implemented a system that provided actionable insights for dispatch team on active network topography and failures using network and call-center data, that resulted in savings of millions of dollars• Developed patterns and insights in consumer bill payment to reduce cost-per-transaction on billions of customer transactions, extracted insights on after-hours device unlocks to bolster security and compliance

• 

  Health care service corporation

  Jun 2019 - May 2020

  Senior big data engineer

  • Established “transactional” data lake pipeline for several phased migration requirements from the legacy billing system to the new Oracle suite of billing• Streamlined the central member-match logic, reducing processing time by 89% by eliminating the need for 11+ passes and implementing a single-pass approach• Enhanced an enterprise framework for passive audits between hops, active audits, configuration-driven data quality and duplicate checks

• 

  At&t

  May 2020 - now

  • Solution architect and business liaison for Supply Chain Spend, Tax, Network, Business Marketing and Product Management programs.• Generative AI – Pioneered Generative AI in the org.• Contract summarization and QnA using open source and OpenAI embedding models, RAG, prompt-engineering, and vector databases. Fine-tuned open source LLM to create MongoDB-agents for data QnA.• Built multiple machine learning models using traditional AI for forecasting, NLP matching/mastering, contract-PO linkage, recommendation engine, spend consolidation, network optimization, targeted marketing etc.• Architect and maintain ML and engineering python, Pyspark, Scala Spark pipelines and APIs. Show less

  • Lead Big Data Software Engineer

    Jan 2024 - now

  • Senior Big Data Software Engineer

    May 2020 - Jan 2024