Brian Ha Email & Phone Number

New York, Ny, Us

Lead architecture and development for high volume, event-driven systems throughout the company.Experiences include:Client communications platform -- Handle 2 million per day Cisco telephony events through a large Java/Kotlin service. Which were then channeled across a network and several Kafka + proprietary tech queues - then transformed into an internal representation. - Architected and delivered silent monitoring: managers could then query OR make a request to Cisco APIs to silently monitor for QA/training/audit purposes — through a proxy Python service. - Designed permissions and secrets management for this sensitive client data flow.Bloomberg.com - - Standardized oncall and SLAs across all backend teams. My training procedures were shared across multiple orgs and still used at present time.- Architected system for tracking user activity metadata across Bloomberg.com (very similar to Compass below). Eventually ingested and stored in GCP Bigtable.- Backup hiring manager (candidates with 0-20 years of exp) and tech lead for content service. Onboarded and mentored senior engineers. Most interesting feature work involved transforming API requests + params into Elasticsearch queries (AWS hosted). Also improved fault tolerance by adding allowlists and better exponential backoff for server connections.

New York, Ny, Us

‣ Designed highly scalable and fault tolerant system to process, store, and retrieve all web activity events (> 1 billion) representing Fortune 500 company revenue. Serves as main source of truth for AI/ML models.‣ Led redesign + execution of user data storage, retrieval, and ETL pipeline. Moved from MongoDB to mixture of DynamoDB, MySQL, and SQS. Overall process improved latency by up to 2 orders of magnitude.‣ Onramped engineering org onto distributed tracing and oncall systems during hypergrowth phase (80 to 300+ engineers in 1 year, across 4 different language stacks).Company would IPO in 2021 with my contributions intact, able to handle exponential scale increase without regressions.

San Jose, Ca, Us

Shipped a $20 million yearly recurring revenue SSO security feature to a major customer, served as primary engineering contact and product manager to them.Onboarded organization onto Selenium for automated testing.

Pleasanton, California, Us

Member of one of Silicon Valley's prestigious associate product management (APM) programs. Not the right role for me, but I occasionally still take on Product Owner duties as a software engineer.