Chen Yaqi

Chen Yaqi

Software Engineer

I build backend systems and web products, including cloud delivery and AI service integration.

Selected work

Software Engineer Intern at Send Services

Selected work

Full-stack · AI integration

FoodMind

Demo / staging

Food records, personal and group preferences, and recommendations brought together in a multi-client product.

My contributionHandled backend and web development, AI integration, infrastructure, and delivery throughout the team project.

  • Spring Boot
  • PostgreSQL
  • React
  • Python
  • AWS
One public boundaryOne public boundaryWeb + AndroidSpring BootPostgreSQLPrivate AI servicesRecommendationCookingChatBackend ownsPermissions · Rules · Validation

One public boundary

  1. Web + Android

    One shared public API

  2. Spring Boot

    Permissions · Rules · Validation

  • PostgreSQL

    Persistence

  • Private AI services

    Recommendation · Cooking · Chat

Conceptual system illustration

Enterprise workflows

ConstructIQ

Working prototype

A construction project workspace for tasks, progress reports, risks, team membership, and documents.

Built the Spring Boot backend and React management interface, including project access rules, Redis caching, and an AWS deployment workflow.

  • Java
  • Spring Boot
  • PostgreSQL
  • Redis
  • React
  • AWS ECS

Local-first · Data integrity

LedgerKit

Windows beta

An offline desktop ledger for multi-currency cash, investments, and net worth, with traceable changes and explicit data-quality checks.

Developed the React desktop interface and Rust application core, including decimal rules, import reconciliation, and encrypted backup and recovery.

  • Rust
  • Tauri
  • SQLite
  • React
  • TypeScript

ML · Anomaly detection

HGAD

ML experiment

Graph and hypergraph anomaly-detection experiments on server monitoring time series, from data preparation to model comparison.

Implemented data preparation, graph construction, autoencoder models, anomaly scoring, and batch experiments against several baselines.

  • Python
  • PyTorch
  • NumPy
  • scikit-learn

Experience

  1. Software Engineer Intern

    Send Services Pte. Ltd.

    Sep 2026 — present

    Developing SendOS across React interfaces, .NET services, relational data, and asynchronous workflows. The product coordinates people, AI agents, and business applications, with human oversight and a traceable record of tasks and decisions.

  2. Project Management & Digital Technology Intern

    Jiangxi Construction Engineering (Group) Co., Ltd.

    Jan — Mar 2026

    Gathered operational requirements and developed a project-tracking prototype with progress, cost, and risk visualisation.

  3. Serverless Intern

    Amazon Web Services (AWS)

    Jan — Mar 2025

    Built a serverless article application using Lambda, API Gateway, and DynamoDB, with a Vue frontend deployed through Amplify.

  4. Backend Engineer · Internship

    Kingsoft Cloud

    Jul — Sep 2024

    Worked on Java backend development and an SDK toolkit for a more consistent console-development workflow.

Education