Michael Liang

01 Experience

1. 2026 — Now

   Google↗

   Staff Software Engineer

   Agentic commerce on Google Cloud's customer engagement AI.

   • Agentic commerce
   • AI agents

   Kirkland, WA

2. 2025 — 2026

   Perplexity↗

   Member of Technical Staff

   Built the Perplexity API.

   • Public API
   • AI search
3. 2024 — 2025

   Amazon Web Services↗

   Senior Software Development Engineer

   Frontier threat detection on Amazon GuardDuty, including Extended Threat Detection.

   • Security
   • Threat detection

   Seattle, WA

4. 2022 — 2024

   Brex↗

   Technical Lead

   Led Brex Payables; built the Brex API, integrations ecosystem, and user and access management.

   • Fintech
   • Payables
   • Public API
   • Integrations

   Seattle, WA

5. 2019 — 2022

   Amazon Web Services↗

   Software Development Engineer

   Founding engineer on the data plane for Amazon Monitron, AI predictive maintenance.

   • Data plane
   • Predictive maintenance

   Boston, MA

6. 2017 — 2019

   MathWorks↗

   Development Application Engineer

   Test and performance infrastructure; where the switch to software started.

   • Testing
   • Performance

   Natick, MA · Software Engineering Intern, 2017

02 Projects

• Google · 2026 — Now

  Agentic commerce↗

  AI shopping agents on Google Cloud's customer engagement AI.

• AWS · 2024 — 2025

  GuardDuty Extended Threat Detection↗

  Frontier threat detection on Amazon GuardDuty.

• Brex · 2022 — 2024

  Brex API↗ & Payables↗

  Built the Brex API and integrations ecosystem; led Brex Payables.

• AWS · 2019 — 2022

  Amazon Monitron data plane↗

  Founding engineer on the data plane for AI predictive maintenance.

03 Writing

Also written about

• TDD with LLMs
• Exception handling in streaming systems
• Breaking into software engineering without a CS degree