KJyang Software Engineer.

Software Developer

雲書苑教育科技有限公司

Employment · Fully Remote · Sep 2025 — Early 2026

Worked primarily on full-stack development for education technology and internal web applications, translating requirements into frontend workflows, backend functionality, and service integrations.

• Developed education and learning web applications, connecting frontend interfaces with backend APIs and data processing workflows.
• Built web tools and workflows for internal requirements, including AI-assisted presentation tools.
• Contributed to robotics education tools covering simulation interfaces and code generation workflows.
• Integrated AI services into application workflows, handling user inputs, data transfer, and result presentation.
• Delivered new features, changes to existing code, and issue fixes through fully remote collaboration.

Work scope only. Internal product names, architecture, and implementation details are confidential under NDA.

Discord Problem-Solving Bot ↗

Backend · AI Integration · Automation

A Discord interface for extracting questions from images, generating explanations, and handling follow-up questions. Used by dozens of students and operated for approximately one year.

• Connected Mathpix OCR with LLM APIs to turn question images into responses.
• Stored conversation context in SQLite for follow-up questions and split long responses to fit message limits.
• The long-running service has ended; a demo remains available.

Core technologies
Python · discord.py · Mathpix · LLM APIs · SQLite

Sift ↗

Developer Tooling · Security

A developer tool for code analysis and security checks.

• Prioritizes deterministic checks and integrates Semgrep static analysis.
• Produces SARIF reports and stores scan data in SQLite.
• Offers optional LLM analysis alongside a traceable checking workflow.

Core technologies
Go · Semgrep · SARIF · SQLite · LLM Integration

Character Studio ↗

Backend · Data Processing

A backend prototype for processing character and conversation data.

• Provides FastAPI endpoints with Pydantic input validation.
• Detects conversation formats and converts them into normalized structured data.

Core technologies
Python · FastAPI · Pydantic

Personal Portfolio ↗

Web Engineering · Deployment

An actively maintained portfolio bringing together projects, work experience, and engineering notes.

• Built responsive interfaces with Astro and TypeScript, including Three.js wireframe interactions and system-based color themes.
• Maintains Chinese and English resumes, print layouts, SEO, and accessibility.
• Uses GitHub Actions to sync to a Mac mini and run the Docker rebuild and restart workflow.

Core technologies
Astro · TypeScript · Three.js · GitHub Actions · Docker

lodash

Contributed changes addressing consistency between existing code behavior and documentation.

highlight.js

Participated in highlight.js open-source contributions.

Aegis

Participated in an open-source project related to AI agent security / EDR.