Experience

Work Experience

Jan 2025 – Jul 2025 | Sandy Springs, GA

Contributed to the architectural evaluation and selection of Next.js for the migration of legacy ASP.NET 4.8 applications, then implemented frontend components to support the transition.
Refactored legacy codebase and removed outdated dependencies with the use of git branching strategies to eliminate downtime.
Owned manual responsive-testing pass across the Next.js migration and fixed mobile navigation issues before production release.

Feb 2022 – Dec 2024 | Sandy Springs, GA

Resolved 200+ production incidents across enterprise applications serving 5,000+ users nationwide while sustaining 99% SLA compliance.
Provided L3 application and production support, serving as primary point of contact and handling 80+ tickets per month.
Diagnosed root causes across application, configuration, and access-layer issues using structured log analysis on high-volume enterprise systems.
Proactively identified and resolved issues via system alert monitoring, reducing unplanned downtime.
Reduced production regression rate by partnering with engineering/QA to validate fixes prior to release.
Validated configuration changes across 4 environments (dev, QA, staging, prod) to ensure reliable release cycles.
Designed and implemented validation workflows and documentation from scratch, standardizing release process across the support org.
Standardized escalation documentation format, reducing back-and-forth between support and engineering.
Participated in Agile/Scrum ceremonies including daily standups, sprint planning, and retrospectives, tracking support-driven changes via story points and Jira boards through sprint cycles.
Authored 30+ knowledge base articles and runbooks documenting recurring issues and troubleshooting procedures.

Email: justinklu75@gmail.com
Phone: 678-978-0780
GitHub: github.com/jlu22003
LinkedIn: linkedin.com/in/justin-lu-jkl

Open to full-time roles and contract work — reach out directly or use the contact form.