Rayan Joseph
Data Analyst @HexaCorp
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WORK HISTORY
Data Analyst @HexaCorp
Chicago, IL, US
Utilized Power BI Power Query Editor for data profiling(Data types, error check, formatting, and clutter removal) and transformation, utilizing Power Query Editor.• Semantic Model has been developed with a STAR Schema and utilizes DAX(SUMX, Aggregation Functions, LOOKUP) for calculations and joining relation-less tables.• Orchestrated data dashboard and published in Power BI services across teams, with cross filtering, Drill Down, and Drill through pages.• Built an LLM-based data extraction pipeline(PROMPT to SQL RETRIVAL to DataFrames), data extraction from various sources like DB(SQL, SQLITE), and acquiring table schema and indexed in LYZR.• Query to output interface has been made using Python and Streamlit, Pydantic.• Managed AZURE cloud environments for scalable data storage/processing and collaborated with teams to deliver data-driven solutions.• Building an internal Resume shortlisting engine, AZURE AI SEARCH SERVICES(W extensive prompts to not lose any candidate opportunity), data store as SHAREPOINT, with hypertuning. Utilizing RAG and RANKING(BM25) methodologies to retrieve resumes.
EDUCATION
K.Ramakrishnan College of Technology
Bachelor of Engineering - BE, Computer Science
DePaul University Jarvis College of Computing and Digital Media
Master's degree, Data science
ABOUT RAYAN JOSEPH
I build AI systems that don\'t just demo well they scale, hold up under enterprise load…
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