JLL Technologies

JLL Technologies (JLLT) is the technology division of JLL (NYSE: JLL), focused on data-driven real estate solutions and digital transformation in property management.

Projects

• Diagnosed low-precision entity matching in JLL Signals; sampled 2,000 matches and established baseline precision/recall/F1
• Designed an LLM-assisted matcher; tested 6 prompt variants with explicit guidelines & examples, improving precision by 8% and F1 by 4%, boosting broker recommendation quality
• Validated 1.6M+ company URLs with SQL & PySpark; built a Python LLM script for complex corrections, achieving a 16% lift over prior methods
• Developed & optimized SQL in Azure Databricks across data-lake tables; instrumented precision/recall checks for pipeline evaluation
• Hardened reliability with Python unit tests (unittest + mock), Git, and CI/CD for continuous verification