Jayasurya Sakthivel
Data Science & AI/ML Engineer · Chandler, AZ
I build data systems and AI products that hold up in production — from LLM extraction pipelines and credit-risk models to federated learning research and real-time industrial digital twins.
Education
M.S. Data Science, Analytics & Engineering
Arizona State University · 2024 — 2026
GPA 4.00 / 4.00
B.Tech Computer Science & Engineering (AI & ML)
Vellore Institute of Technology, Chennai · 2020 — 2024
GPA 3.53 / 4.00
Current Roles
AI/ML Engineer · Vizzda
Arizona · Aug 2026 — Present
- Built and deployed end-to-end pipelines for automated real estate document processing, orchestrating Google Document AI, Tesseract OCR and Gemini 2.5 Flash in a 3-source consensus extraction system across Maricopa and Miami-Dade.
- Created entity resolution and skip-trace systems using fuzzy matching, Bizapedia and the Enformion API — with tuned similarity thresholds, cost-control layers and multi-hop LLC traversal — to identify beneficial owners at scale.
- Developed a modular multi-county Python pipeline combining external APIs, Playwright automation, LLM structured extraction and rules-based enrichment to produce contact-ready commercial real estate intelligence daily.
Research Assistant · Ira A. Fulton Schools of Engineering, ASU
Tempe, AZ · May 2026 — Present
- Implemented 6 federated learning algorithms combining FedAvg/FedGmd aggregators with SGD, ASS and SASS trainers, running 432 experiments across IID and non-IID MNIST and medical datasets (REFUGE, LAG) with up to 80% corruption.
- Diagnosed why FedGmd hurt accuracy by up to 6% at high corruption — the geometric median collapses toward the corrupt majority past 50% — and confirmed it theoretically via RFA breakdown-point analysis.
Experience Highlights
Instructional Aide & Grader · Arizona State University
Tempe, AZ · Aug 2025 — May 2026
- Supported 100+ students across Principles of Programming Languages and Operations Research Models through office hours and exam reviews.
- Developed rubrics and solution sets, grading via Gradescope and Canvas to keep academic standards consistent.
Data Analyst Intern · Amrutanjan Health Care Ltd
Chennai, India · May 2023 — Jul 2023
- Automated ETL and reporting with PostgreSQL, PySpark on Databricks and Python over 1M+ sales records, with anomaly checks flagging data errors before executive reporting.
- Engineered 14 demand and seasonality features with DBSCAN and statistical methods; built LSTM and Seasonal ARIMA forecasts at 90% accuracy, lowering stock-out risk.
- Delivered Power BI variance dashboards that shaped procurement strategy for senior leadership.
Key Skills
AI & Machine Learning
Data & Analytics
Cloud & Platforms
Engineering & Tools