Mike Hall
Staff Software Engineer
- Location Chicago, IL
- Email mike@just3ws.com
- Web just3ws.com
- LinkedIn linkedin.com/in/just3ws/
- GitHub github.com/just3ws
Role & Career Context
Detailed experience breakdown, architectural achievements, and related archival artifacts.
Software Engineer & Technical Onboarding Lead (Fraud & Taxonomy Systems)
Owned core backend systems for fraud and taxonomy, leading global engineering enablement during hyper-growth.
- Centralized Taxonomy Service: Implemented merchant taxonomy service in Java and MySQL, eliminating categorization drift across distributed product teams during hypergrowth.
- Analytical Fraud Detection: Built analytical fraud detection queries in Vertica and conducted exploratory spikes on Hadoop and Clojure for transaction anomaly scoring.
- Merchant Analytics Pipelines: Built high-throughput merchant analytics tools in Ruby and CouchDB, surfacing market insights for global sales operations.
- Global Engineering Enablement: Redesigned technical onboarding curricula, standardizing engineering practices and shortening time-to-first-commit for 100+ global engineering hires.
Skills: Ruby, Java, Clojure, CouchDB, Vertica, Hadoop, MySQL, Redis, JavaScript, Bash