Hello,
This is QITONG LAN,
I'm a Professional Full-stack Engineer.

AWS Certified Cloud Practitioner
AWS CLF
AWS Solutions Architect Associate
AWS SAA
developer.js
Result:
hireable() → ... ✓

Who am I

I'm Qitong Lan (Tong), a professional Full-Stack Engineer with 9+ years of experience at leading tech firms in China like eSurfing Cloud, NetEase, and China Telecom. I architect and deliver complete cloud-native solutions that power mission-critical systems processing millions of daily transactions. My expertise spans the entire development lifecycle - from designing scalable cloud infrastructures and optimizing DevOps pipelines to crafting modern frontend interfaces and high-performance backend services. Passionate about the AI revolution in software development, I leverage cutting-edge technologies to build intelligent, adaptive systems while maintaining enterprise-grade reliability. I specialize in transforming complex business requirements into scalable technical solutions that drive measurable impact across various domains.

Professional Journey

Career Timeline

Dec 2021 - Jun 2023
Senior Software Engineer
China Telecom eSurfing Cloud
Jan 2018 - Dec 2021
Senior Software Engineer
NetEase Games
Jul 2014 - Jan 2018
Junior Software Engineer
China Telecom Corporation Limited
⭐
9+
Years Experience
3
Companies

Skills Gained

JavaJavaScriptTypeScriptPythonHTML/CSSSpringBootReact.jsNext.jsNode.jsFlaskMySQLPostgreSQLMongoDBRedisSqliteJenkinsDockerNginxKubernetesMicroservicesDevOpsCloudAgile developmentAWSAI Coding

Professional Growth

System Architecture & Design90%
Frontend Development85%
Backend Development100%
Cloud Infrastructure70%
DevOps80%
Testing, Quality Assurance & Automation70%
Data Management & Database Optimization80%
Soft Skills & Communication90%
Emerging Technologies & Trends80%
China Telecom eSurfing Cloud

Senior Software Engineer

China Telecom eSurfing Cloud
Dec 2021 - Jun 2023

Key Responsibilities:

  • Led the development of core modules for the cloud billing system using microservices architecture
  • Implemented CI/CD pipelines for automated testing and deployment
  • Optimized application performance and scalability on cloud infrastructure
  • Provided technical leadership and mentorship to junior developers

Technologies:

JavaSpringBootMySQLMicroservicesRedisDockerKubernetesCloudAgile development

Key Achievements:

Led the successful development and deployment of core modules for the cloud billing system, achieving project milestones and client satisfaction

NetEase Games

Senior Software Engineer

NetEase Games
Jan 2018 - Dec 2021

Key Responsibilities:

  • Developed and maintained backend services for multiple mobile games
  • Designed and implemented RESTful APIs for game features
  • Collaborated with cross-functional teams to deliver game updates

Technologies:

JavaSpringBootMySQLMongoDBNginxDevOpsHTML/CSSJavaScript

Key Achievements:

Played a crucial role in the design and development of operation center systems, contributing to the seamless integration and operation of multiple game platforms

China Telecom Corporation Limited

Junior Software Engineer

China Telecom Corporation Limited
Jul 2014 - Jan 2018

Key Responsibilities:

  • Developed and maintained program code for the core CRM service, focusing on financial transactions
  • Implemented order cost calculation, billing, and refund processes
  • Collaborated in systems integration, database administration, and software configuration tasks
  • Performed code reviews, software testing, and debugging
  • Assisted in test automation and configuration management

Technologies:

JavaSpringBootMySQL

Key Achievements:

Successfully implemented order cost calculation, billing, and refund processes, ensuring accuracy and efficiency in financial transactions

Projects

Explore my portfolio of projects showcasing my skills in web development, from responsive front-end designs to complex back-end systems.

Frontend

Portfolio

Personal portfolio website built with Next.js, TypeScript, and Tailwind CSS, featuring project showcases and responsive design.

TypeScriptNext.jsTailwind CSSReactFramer Motion
Full Stack

Askify

A modern request forum platform built with Flask, featuring user authentication, real-time updates, and interactive discussion threads.

PythonFlaskSQLiteBootstrap
Frontend

MiniProgram LetLetMe

WeChat Mini Program offering FPL tools including team information, deadline countdown, live scores, and mini-league rankings.

JavaScriptWeChat Mini ProgramMobile DevelopmentWeChat API
Frontend

LetLetMe Web

Frontend application for letletme.top, providing a comprehensive user interface for Fantasy Premier League data analytics and team management.

TypeScriptReactNext.jsTailwind CSSAnt Design
Backend

LetLetMe Data

Advanced data analytics tool for Fantasy Premier League (FPL) managers, providing statistical insights, team optimization, and performance analysis.

TypeScriptNode.jsData AnalysisAPI IntegrationMySQL
Backend

LetLetMe API

High-performance RESTful API service built with Bun and Elysia.js, powering the LetLetMe Fantasy Premier League analytics platform with ultra-fast data processing.

TypeScriptBunElysia.jsMySQLRedis

Blog

Explore my thoughts, tutorials, and insights on software development, technology, and more.

jvm时间和linux系统时间不一致
Nov 7, 20233 Min Read

jvm时间和linux系统时间不一致

Javajvm时间和linux系统时间不一致

Debian/Ubuntu systems use both /etc/localtime and /etc/timezone for timezone configuration, but Java applications exclusively read from /etc/timezone for default timezone settings. This discrepancy can cause inconsistencies when system services use localtime while Java processes follow timezone, potentially leading to time-related errors. System administrators must ensure both configuration files match to maintain consistent timezone behavior across all applications.

Shiny App
Aug 6, 20236 Min Read

Shiny App

RShiny App

Shiny is an R package enabling developers to build interactive web applications directly in R, demonstrated through quick installation () and example apps like . Key features include seamless R integration, reactive programming for real-time updates, and pre-built templates for rapid prototyping. The framework simplifies creating data-driven dashboards without requiring extensive web development expertise.

R Notes
Jul 31, 20233 Min Read

R Notes

R

In R, variables are assigned using the operator, and unlike many languages, explicit declaration is unnecessary due to dynamic typing where types are inferred at runtime. Variable names can include letters, numbers, periods, or underscores (but cannot start with a number or period), and R is case-sensitive with reserved keywords like or restricted. Key takeaways include R's syntax flexibility, its convention of using periods in variable names (e.g., ), and the importance of avoiding reserved words to prevent errors.

Notes
Aug 16, 20236 Min Read

Notes

R

The article explains R commands for package management: use to list all installed packages and to check if a specific package exists. These base R functions help verify installations and manage dependencies without external tools. Key takeaways include leveraging built-in utilities for environment audits and ensuring package availability in workflows.

ES6 in React (from Learning React)
Feb 21, 20243 Min Read

ES6 in React (from Learning React)

javascriptES6 in React (from Learning React)

The keyword declares constants in JavaScript, creating variables that cannot be reassigned or overwritten after initialization, ensuring immutability. It is ideal for values that should remain fixed, such as configuration settings or references, enhancing code predictability. Using prevents accidental reassignment errors and promotes clearer intent in variable declaration.

ES6 (ECMAScript 2015) Features
Nov 15, 20236 Min Read

ES6 (ECMAScript 2015) Features

javascriptES6 (ECMAScript 2015) Features

Arrow functions in ES6 provide a shorter syntax for anonymous functions using , eliminating the need for the keyword and curly braces for single expressions. They lexically bind , inheriting its value from the enclosing context instead of creating their own, which avoids common pitfalls with traditional function expressions. This makes code more concise, predictable, and easier to read, particularly in callbacks and functional programming patterns.

Education Journey

2023 - 2025

Master's degree, Information Technology

UWA Logo
The University of Western Australia
Specialization in Software Engineering
Artificial Intelligence (ML/DL)
Advanced Cloud Computing
2010 - 2014

Bachelor of Engineering

Hunan University Logo
Hunan University
Foundation in Engineering Principles and Systems
Technical Problem-Solving and Analysis
✓
6+
Years of Learning
2
Degrees
10+
Projects
∞
Learning Mindset

Skills

Java
JavaScript
TypeScript
Python
SQL
Shell
HTML
CSS
Java
JavaScript
TypeScript
Python
SQL
Shell
HTML
CSS
Bootstrap
shadcn/ui
React.js
Next.js
Spring Boot
Node.js
Express.js
Bun
Bootstrap
shadcn/ui
React.js
Next.js
Spring Boot
Node.js
Express.js
Bun

Programming Languages

  • Java
  • JavaScript
  • TypeScript
  • Python
  • SQL
  • Shell

Frontend Technologies

  • HTML
  • CSS
  • Bootstrap
  • shadcn/ui
  • React.js
  • Next.js

Backend Technologies

  • Spring Boot
  • Node.js
  • Express.js
  • Bun
  • Elysia.js
  • Flask

Database Technologies

  • SQLite
  • PostgreSQL
  • MySQL
  • Redis
  • MongoDB
  • Supabase

Testing & Quality Assurance

  • JUnit
  • Jest
  • Vitest
  • Pytest
  • Postman

DevOps & Infrastructure

  • Docker
  • Nginx
  • AWS
  • Jenkins
  • GitHub Actions

Project Management

  • Agile Development
  • Kanban
  • Jira
  • Confluence
  • GitHub Projects

AI Tools

  • V0 icon
    v0
  • BoltNew icon
    bolt.new
  • Cursor icon
    Cursor
  • Windsurf icon
    Windsurf
  • MCP icon
    MCP

Get In Touch

Send Me a Message

If you have any questions or concerns, please don't hesitate to contact me.

Contact Information

Follow Me

Let's Work Together

I'm currently available for full-stack engineer positions. If you have opportunities that match my skills and expertise, I would love to discuss how I can contribute to your team.