Sunna Min

• Quartered alert traffic across thousands of Ubuntu nodes running dozens of custom ad-tech projects on AWS & GCP—achieved within a tight three-person SRE team. • Took point on P1/P2 incidents during on-call shifts; by day, cleared P3 issues and fine-tuned lower-severity alert rules to keep new noise from creeping back. • Contributed to the upkeep of a large IaC estate (Puppet + Terraform) with the platform team, and kept Helm manifests & external dependencies current for safe, repeatable releases. • Refined Zabbix rules and Opsgenie escalation policies, slashing false positives and surfacing only actionable alerts to engineers. Tools: Kubernetes • Terraform • Puppet • Zabbix • Opsgenie • AWS | GCP • Bash/Python

• Co-built the company’s structured QA practice—defined test strategy, selected tooling, and established coverage standards for a high-volume messaging platform. • Wrote specs, prioritised backlog, and demoed every release to stakeholders, ensuring new features met customer and compliance requirements before any code shipped. • Maintained comprehensive regression and exploratory test suites, achieving full coverage for areas under ownership and routinely catching critical defects pre-production. • Sole incident manager for the product: triaged and resolved all production incidents end-to-end, delivered blameless post-mortems, and laid the groundwork for a future SRE function.

• Designed two flagship ground-up hardware systems—took a blank sheet plus electrical schematics and delivered full 3-D CAD, material choices, and production-ready drawings that met strict client specs. • Ran FEA (static load, vibration, thermal) and quick-build prototypes to validate metal strength and weight balance, avoiding late-stage rework and keeping projects on schedule. • Owned the full hand-off to fabrication: resolved manufacturability issues and coordinated with electronics and compliance teams until first articles shipped.