Ian Hong
Vashon
Summary
Knowledge and experiences on the payment gateway services; Developed the first payment tokenization project for Digital/ECOM
Deep technical knowledge and experience for enterprise applications from architecture to implementation to operation over entire life cycle of IT products.
Strong at investigating and solving critical production issues.
Leading engineering team for technology initiative, and evangelizing engineering disciplines.
Strategic project management: Anticipating and resolving issues before becoming blocking problems.
Overview
22
22
years of professional experience
Work History
Senior Software Engineer
COSTCO
10.2024 - Current
- Led DevOps team operations, overseeing the full lifecycle from platform provisioning and automation to ongoing operational support and monitoring.
- Modernized infrastructure-as-code by redesigning legacy Terraform modules for Azure Well-Architected Framework compliance.
- Engineered modular, quality-gated CI/CD pipelines, replacing legacy systems to significantly improve deployment reliability and velocity.
- Developed end-to-end Azure Data Factory pipelines supporting full CI/CD, ensuring version control and automated deployment for data operations.
- Re-architected the Disaster Recovery plan for key Azure data services, introducing real-time replication and global endpoint capabilities to ensure business continuity
- Championed observability initiatives by establishing an OpenTelemetry-based data collection pipeline visualized in Grafana for comprehensive system insights
- Instituted and led the Architecture Decision Record (ADR) process, documenting critical architectural choices for areas including asynchronous messaging and application configuration
- Led initiatives to diagnose and resolve critical Cosmos DB performance bottlenecks, driving design enhancements for improved scalability and long-term sustainability
FULL STACK ENGINEER 4
COSTCO
10.2023 - 10.2024
- Lead the OMS/BizTalk performance tests for critical projects such as WIO (Warehouse Inventory Online)
- Implement the pipelines for PowerShell, and Bash scripts for production support automation
- Troubleshoot P2 incidents, and fix the root causes
FULL STACK ENGINEER 4
COSTCO
05.2015 - 10.2023
- Leading OMS modernization for DevOps and SRE
- BizTalk Specialist from development to production support
- Designed and developed various projects for OMS (Order Management System) backend for ECOM from payment to order import, to fulfillment
- Responsible for OMS core system components such as error processing, message recovery, and message broker
SOFTWARE ENGINEER II
MICROSOFT
03.2013 - 05.2015
- Migrated ASP.NET MVC project to ASP.NET Core
- Enhanced OPEN Data Protocol (OData) .NET component for Entity Framework
- Enhanced routing, and page rendering in ASP.NET MVC
SDET Engineer II
MICROSOFT
03.2013 - 05.2015
- Migrated ASP.NET MVC project to ASP.NET Core
- Enhanced OPEN Data Protocol (OData) .NET component for Entity Framework
- Enhanced routing, and page rendering in ASP.NET MVC
PERFORMANCE ENGINEER
MICROSOFT
03.2007 - 03.2008
- Performance and Stress tests for two versions of BizTalk Server
- Automated performance test lab from machine building to deployment
- Developed Microsoft BizTalk Performance Test Load Generator
- Collaborated premium customer support engineer team for critical situations to help enterprise customers such as UBS, and other strategic partners of Microsoft
PROGRAMMING WRITER I & II
MICROSOFT
08.2005 - 03.2007
- Reference implementations (SOA and BPM) for BizTalk Serer (https://learn.microsoft.com/en-us/biztalk/core/scenarios-for-business-solutions)
- BizTalk Server Architecture, MSDN (https://learn.microsoft.com/en-us/biztalk/core/biztalk-server-architecture)
- Merit Award, 2007, Puget Sound Society for Technical Communication for BizTalk Server 2006 Documentation
- Gold Star Award, 2006
PROGRAM MANAGER
MICROSOFT
08.2003 - 08.2005
- Responsible for BizTalk Server 2004 Korean Edition
- Engaged with enterprise customers such as Samsung, and Korea Telecom to identify BizTalk Server requirements
- Released KEDIFACT (Korea EDIFACT) Adapter support for BizTalk Server 2004
Education
Master of Science - Computer Engineering
Dong-A University
KOREA03.2002
Bachelor of Science - Computer Engineering
Dong-A University
KOREA03.1999
Skills
- BizTalk, MSMQ, Windows, IIS, SQL
- Production Debugging
- C#, TypeScript, Python, and PowerShell
- Scaled Agile Framework
- Production Debugging
- Azure DevOps
- Azure Service Bus, Event Hub, Function
- Docker, Azure AKS, Terraform
- Payment Services such as authorization, and settlement
Timeline
Senior Software Engineer
COSTCO
10.2024 - Current
FULL STACK ENGINEER 4
COSTCO
10.2023 - 10.2024
FULL STACK ENGINEER 4
COSTCO
05.2015 - 10.2023
SOFTWARE ENGINEER II
MICROSOFT
03.2013 - 05.2015
SDET Engineer II
MICROSOFT
03.2013 - 05.2015
PERFORMANCE ENGINEER
MICROSOFT
03.2007 - 03.2008
PROGRAMMING WRITER I & II
MICROSOFT
08.2005 - 03.2007
PROGRAM MANAGER
MICROSOFT
08.2003 - 08.2005
Master of Science - Computer Engineering
Dong-A University
Bachelor of Science - Computer Engineering
Dong-A University
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