Résumé

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Xueqi Liu

Full-stack Product Engineer

xueqi@xueqiliu.comRemote · Worldwidehttps://xueqiliu.com

Product-minded engineer building evidence-first software for complex workflows and decisions across operations, automation, privacy, logistics, and global trade.

Experience

Technology Lead

Privately Held International Trade Business · Prior operating experience

Led the technology function for an owner-operated international trade business, connecting day-to-day commercial operations with practical software and automation.

  • Translated trade research, workflow coordination, and operational judgment into clearer internal tools and decision processes.
  • Applied software architecture, data discipline, and controlled automation without overstating business scale or disclosing sensitive company details.

Selected projects

TradeFoundry

Private evidence-first operating system for researching and governing global trade opportunities.

  • Structured evidence, opportunity, portfolio-decision, governed-execution, and learning boundaries across a nine-board local/MVP architecture.
  • Kept consequential commercial actions approval-bound and documented production limitations explicitly.

CargoMesh

Standards-driven business transaction compiler and durable runtime for container logistics.

  • Compiled pinned DCSA contracts into deterministic Transaction IR and digest-backed business representations.
  • Modeled approval, retry, compensation, cancellation, and explicit verification states.

LeadOps Portal

Multi-tenant operations portal spanning qualification, approval, automation, incidents, and reporting.

  • Defined the product, architecture, data boundaries, implementation plan, and acceptance strategy.
  • Made tenant isolation and human approval explicit system boundaries.

n8n Reliability Lab

Workflow laboratory for validation, idempotency, retries, approval, failure recovery, and acceptance testing.

  • Exercised invalid, duplicate, transient-failure, exhausted-retry, and approval-required scenarios.
  • Documented an effectively-once boundary without overstating cross-system guarantees.

Skills

Product and full-stack engineering: TypeScript, Next.js, Node.js, Python, PostgreSQL

Reliable workflow systems: Idempotency, Human approval, Retries, Failure recovery, Verification