Jeremy's Portfolio
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Jeremy's Portfolio
JT

About Me

Full-Stack / Backend Engineer with 3 years of professional experience building payment system integrations, banking applications, and RESTful APIs in Node.js, TypeScript, and C#. Cloud-certified through George Brown College (AWS, Azure), with hands-on experience in Docker containerization, PostgreSQL/MSSQL optimization, and production deployment. Legally entitled to work in Canada — currently targeting Backend or Full-Stack Engineering roles in the Greater Toronto Area.

Experience & Education

Work

Produce Cooler Keeper

T&T Supermarket

March 2026 – Present • Toronto, ON

Inventory ManagementCold Storage OperationsTeam Coordination
  • Maintain inventory accuracy and product quality in a high-turnover cold storage environment, coordinating restocking with team leads.
  • Continuing to build personal engineering projects (TradingBot, Fly Panner) in parallel.
Work

Fulfillment Associate

T&T Supermarket

September 2025 – March 2026 • Toronto, ON

Order FulfillmentLogisticsCloud Certifications
  • Picked and packed online grocery orders against tight delivery windows in a fast-paced, team-based environment.
  • Completed Cloud Computing Technologies certificate (Azure, AWS) part-time during this period.
Education

Cloud Computing Technologies Program

George Brown College • Ontario College Graduate Certificate

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

  • Coursework: Microsoft 365, Azure, AWS — architecting and deploying cloud-native solutions.
  • Applied Claude Code in cloud lab projects to accelerate IaC scripting (ARM templates, Bicep) and troubleshoot deployments.
Education

Mobile Application Development and Strategy Program

George Brown College • Ontario College Graduate Certificate

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

  • Built cross-platform mobile apps in React Native, Swift (iOS), and Kotlin (Android).
  • Used Claude and Claude Code to explore AI-augmented mobile development workflows.
Work

Backend Engineer

Collaborate Technology

April 2021 – August 2023 • Taipei, Taiwan

C#RESTful APIsMSSQLPayment SystemsDatabase OptimizationAgile/Scrum
  • Enabled reliable third-party payment processing by designing and integrating RESTful APIs, orchestrating complex data flows between internal services and external payment providers.
  • Improved traceability and reduced time-to-resolution of production payment issues by implementing robust transaction logging and diagnostic mechanisms.
  • Reduced query execution time on high-volume payment tables by analyzing and optimizing complex MSSQL queries and indexes.
  • Collaborated in an Agile/Scrum team through code reviews, sprint planning, and estimation.
Work

Software Engineer

Harmonation Inc.

November 2020 – April 2021 • Taipei, Taiwan

C#Windows ApplicationsMSSQLBanking Systems
  • Improved transaction processing speed and reduced UI friction for bank tellers by tailoring Windows desktop applications for banking workflows in C#.
  • Improved data retrieval performance across core banking modules by writing optimized MSSQL queries and stored procedures.
Work

Corporal, Artillery Observer

Republic of China (Taiwan) Army — Artillery

August 2015 – August 2020 • Taiwan

Military ServiceArtillery ObservationDiscipline & Teamwork
  • Completed five years of full-time military service as an artillery observation specialist, collecting and reporting target observation data to support fire direction.
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

Primary Stack

Languages
TypeScriptJavaScriptC#SQL
Frameworks & Backend
Node.jsExpress.jsNest.jsNext.jsReactRESTful APIs
Database
MSSQLPostgreSQLMongoDBPrisma ORM
Cloud & DevOps
AWSDockerAmazon ECSAmazon ECRAmazon RDSAmazon S3CloudFrontAWS LambdaCI/CDVercel
AI & Developer Tools
Claude (Anthropic)Claude CodeAI-Assisted DevelopmentPrompt Engineering

Also Familiar With

Mobile
React NativeSwiftKotliniOS DevelopmentAndroid DevelopmentExpo
Frontend
Tailwind CSSHTML5CSS3
Cloud & DevOps
AzureMicrosoft 365AWS TextractVPCRoute 53Application Load BalancerAuto Scaling GroupsIAM
Database & Storage
FirebaseAmazon S3
Tools
GitVS CodeXcodeAndroid StudioAgile / Scrum