Xian Zheng
AI Engineer · Full-Stack · Remote

Xian Zheng

Senior engineer with seven years across govtech, fintech, and AI — I like building things that hold up in production and matter to the people using them.

7+
Years experience
24k
Waitlist in 2 months
10×
Hackathon wins
1.5M
Daily events (fintech)
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Background

Seven years of shipping things that hold up.

Seven years building across government, fintech, edtech, and web3 — the last six fully remote. From Java APIs handling 1.5M daily events to accessibility-compliant public benefits platforms serving an entire state. In early 2026 I completed the Gauntlet AI Fellowship, shipping production LLM systems weekly against real partner briefs. I run Seein Limited, a small consulting practice, and I'm currently open to the right contract or full-time opportunity.

02

Selected work

View all on GitHub ↗
Gauntlet AI Capstone · 2026 · Showcase selected

Ember — Literacy
App for Dyslexia

Structured-literacy tablet app grounded in Orton-Gillingham. On-device phoneme synthesis and speech recognition. Offline-first, four-layer architecture — student app, adaptive engine, data layer, teacher dashboard. 1,200+ visits in two weeks.

TypeScript meSpeak.js vosk-browser Adaptive Engine Offline-first
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Gauntlet AI · 2026 · TypeScript

Board SDK
MCP Server

MCP server giving AI assistants structured, hallucination-free access to the Board SDK for Unity. 27 tools across 4 domains. Auto-discovers and proxies live Unity Editor tools — one server for both SDK knowledge and real-time editor control.

MCP Protocol Unity Claude Desktop Cursor
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Nava PBC · Govtech · 2024–2026

Massachusetts PFML Platform

Public benefits for the entire state. React + Python under WCAG 2.1 AA and federal procurement constraints. Accessibility-first across complex eligibility flows.

Co-Founder · Social · 2022–2023

Ensō Collective

0 → 24,000 waitlist signups in two months. React, Supabase, React Native. A/B testing drove 35% better onboarding.

Prove · Fintech · 2020–2022

Transaction Infra at Scale

Java APIs supporting 1.5M+ daily events. Owned reliability at scale. Mentored 3 engineers, cut onboarding time 50%.

1.5M daily events

"Good software is invisible. You only notice it when it breaks."

On what actually matters in production

What I work with

Comfortable across the full stack, with the most depth in AI/ML systems, TypeScript, Python, and React. I pick up new tools quickly and care more about solving the right problem than using a particular one.

LangGraph LangChain RAG Pipelines MCP Servers Anthropic API TypeScript Python Go Java React React Native Next.js FastAPI Node.js PostgreSQL pgvector Pinecone AWS Docker Supabase LLM Evals WCAG 2.1 AA Solidity Agent Orchestration

Let's build
something real.

Open to AI engineering contracts, senior full-stack roles, and consulting through Seein Limited. I do my best work on teams where the problem is interesting and the bar for craft is high.

Xian Zheng © 2026 · Seein Limited · Remote