Xinwei Xiong

AI Product Systems Engineer

Agent Runtime / Native iOS / Full-stack Systems

3293172751nss@gmail.com +86 18672749565WhatsApp github.com/cubxxw cubxxw.com Shenzhen · Open to AI / Agent product systems roles

I build resumable agent runtimes and native AI products with durable context, tool policy and background execution.

Engineering Signals

DayPage TestFlight v0.4.74 / 9 scheduled regressions / 464 tests + 4 UI flows
Agentry 191 tests / race detector / 63.2% coverage / stdio MCP
OpenIM #1 contributor / 358 contributions / 11-service Helm / API + E2E CI

Experience

getyak

Independent AI Product Engineer

Shipping agent runtimes and native iOS/web products with automated release and regression.

Shenzhen / Remote

Telepace AI

Founder / Product Engineer

Owned backend, async pipelines and Kubernetes delivery; stopped after 0 paying users.

Remote

OpenIM

Open-source Intern, then Community Contributor

Ranked #1 with 358 contributions; delivered 11-service Helm, API/E2E CI and contributor governance.

Remote

Selected Systems

DayPage

Solo Product Engineer

Apr 2026 - present Internal dogfood · TestFlight v0.4.74

Lightweight capture is compiled by an LLM into a personal knowledge network; next layer: user-defined Skills → agent execution → artifacts returned to the UI.

  • Shipped lightweight multimodal capture, LLM compilation, a Markdown/YAML vault and graph-backed retrieval; seven-day backfill + Local-to-iCloud integrity checks.
Swift / SwiftUI / TypeScript / Next.js / BGTaskScheduler
Release v0.4.74CI Run

Agentry

Runtime Design and Implementation

Jun 2026 · embedded prototype Working prototype

A resumable, auditable agent runtime that unifies loops, tools, sessions, policy and multiple transports.

  • Bounded loop; replayable JSONL sessions; allow/deny/ask; HTTP-tool rechecks for DNS, redirects and private ranges.
Go / MCP / JSON-RPC / HTTP / Chrome CDP
ArchitectureSource

OpenIM

Open-source Intern / Community Contributor

Public contribution window: Apr 2023 - Apr 2024 Past contribution

Owned deployment, CI and contributor governance in a large Go IM project; reached #1 on GitHub's contributor graph.

  • Delivered 11-service Helm/Helmfile, API + E2E CI, and RFC, DCO, PR-review and release governance.
Go / Docker / Kubernetes / CI/CD / GitHub
Contributor GraphPR Index

Core Stack

Agent Systems
Agent loop / MCP / Tool policy / Session lifecycle
Product Systems
Native iOS / Web / Backend / TestFlight
Validation
Regression testing / XCTest / Swift Testing / Maestro / Go race detector
Languages
Swift / TypeScript / Go / Python

Education

Wuhan College of Arts & Sciences / Computer Science · undergraduate studies completed / 2024

Public Work Graph

Products / Prototypes / Engineering Logs