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Xingchi Guo

Projects

Things I have built

Each project is written up as a case study: the problem, the architecture, the decisions behind it, and how it is verified.

Engineering Execution Control Plane

ExecRelay

Engineering execution and evidence infrastructure for developers and AI coding agents. ExecRelay runs work in a real terminal and records process outcomes, evidence, verification, and repository changes as separate, linked records.

  • Rust
  • Tauri
  • TypeScript
  • React
  • +6 more
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Career Search & Interview Workflow System

CareerNeed

A full-stack product that models a job search as one connected workflow — sources, jobs, career directions, resumes, applications, and interviews — with AI analysis that has to cite its evidence before it is shown.

  • Next.js
  • React
  • TypeScript
  • Python
  • +8 more
Case study

Product-Independent Authentication Infrastructure

Reusable Auth Kit

Authentication infrastructure that several products can share without sharing accounts, permissions, or data — provider-neutral identity contracts, a web adapter, an explicit API client, and independent token verification on the server.

  • TypeScript
  • React
  • Next.js
  • Python
  • +4 more
Case study