Jeremy's Portfolio
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Jeremy's Portfolio
JT

About Me

Full-Stack Engineer with 5+ years of experience, including 3+ years in professional backend and payment system development. Skilled in end-to-end application architecture — from RESTful API design and relational database schema planning to AWS cloud infrastructure. Proficient in AI-assisted development using tools like Claude and Cursor, and experienced in integrating LLM APIs into production applications. Grounded in TypeScript, Node.js, C#, and modern full-stack technologies, with ongoing cloud computing studies at George Brown College.

Experience & Education

Education

Cloud Computing Technologies Program

George Brown College • Ontario College Graduate Certificate

September 2024 – August 2025 • Casa Loma Campus, Toronto, ON

  • Microsoft Azure Administration and Architecture
  • Amazon Web Services (AWS) Cloud Practitioner and Solutions Architecture
  • Cloud security implementation and best practices
  • Microsoft 365 Identity and Services
  • Advanced Linux and Windows Server Infrastructure
  • Network fundamentals and system administration
  • Career planning and portfolio development
  • Work-integrated project
Education

Mobile Application Development and Strategy Program

George Brown College • Ontario College Graduate Certificate

September 2023 – August 2024 • Casa Loma Campus, Toronto, ON

  • Mobile App Development for iOS and Android platforms
  • Kotlin and Swift Programming Languages
  • Cross-platform mobile development
  • Web development fundamentals (HTML5, CSS3, JavaScript)
  • Full stack development concepts
  • Mobile application strategy and business planning
  • App Store and Android Market submission processes
  • Work-integrated project
Work

Backend Engineer

Collaborate Technology

April 2021 - August 2023 • Taipei, Taiwan

C#RESTful APIsMSSQLPayment SystemsDatabase Optimization
  • Designed and integrated RESTful APIs with third-party payment systems, ensuring secure and reliable transaction processing
  • Developed comprehensive logging systems to track payment transactions, enabling rapid debugging and improving system reliability
  • Optimized complex MSSQL database operations and queries, resulting in improved performance and faster response times
  • Collaborated with cross-functional teams to deliver scalable backend solutions supporting high-volume transactions
Work

Software Engineer

Harmonation Inc.

November 2020 – April 2021 • Taipei, Taiwan

C#Windows ApplicationsMSSQLBanking SystemsUI/UX
  • Developed and optimized Windows applications for banking sector, improving user interface efficiency and reducing transaction processing time
  • Built robust C# applications with MSSQL database integration, enhancing data retrieval capabilities and system performance
  • Implemented database optimization strategies that significantly improved query response times and overall application performance
  • Delivered solutions that increased customer satisfaction through improved application reliability and user experience
Work

Corporal, Forward Observer

ROC Army Artillery

August 2015 – August 2020 • Taiwan

Field ArtilleryTactical OperationsForward ObservationTeam LeadershipMilitary Communications
  • Conducted forward observation missions to identify and report enemy positions, providing accurate fire adjustment data to artillery units
  • Coordinated fire support missions between infantry and artillery battalions, ensuring precise and timely engagement of designated targets
  • Operated observation equipment and military communications systems in field conditions
  • Supervised and trained junior enlisted personnel in observation techniques and operational procedures
  • Maintained unit readiness and upheld discipline standards throughout a five-year service commitment
Education

Information Technology Program

Ling Tung University • Bachelor of Information Technology

September 2011 – June 2015 • Taichung, Taiwan

  • Fundamentals of C++ programming and object-oriented concepts
  • Android application development
  • Electronic circuits and circuit analysis

Explore My Background

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Skills

Technical expertise

Experience

Work history

Education

Academic background

Certificates

Certifications

Programming
JavaScriptTypeScriptSwiftKotlinC#Node.js
Web & Frontend
Next.jsReactHTML5CSS3Tailwind CSSBootstrap
Mobile Development
React NativeiOS DevelopmentAndroid DevelopmentExpo
Backend & APIs
Express.jsNest.jsRESTful APIsServerless FunctionsAWS Lambda
Database & Storage
PostgreSQLMongoDBMSSQLFirebaseAmazon S3Amazon RDS
Cloud & DevOps
AWSAzureDockerAmazon ECSAmazon ECRCloudFront
AWS Services
AWS TextractVPCRoute 53Application Load BalancerAuto Scaling GroupsIAM
AI & LLM
Claude APIOpenAI APILLM IntegrationCursorPrompt EngineeringAI-Assisted Development
Development Tools
GitVS CodeXcodeAndroid StudioExpo CLInpm