Aaron Zhang

In this project, I am a full stack developer and actively contributed to:

• Mater Scala fp skills, core contributor of the recommendation backend systems.

• Master React, TypeScript and GraphQL skills, core contributor of the online web

systems.

• Communicating risks, sharing context with client and teams located across Melbourne

daily.

• Refactor the old codes between four service to improve the code’s readability and

maintainability.

• Spike and work for the whole project Authorization, communicating with different API

developer and adding the related privilege to keep security.

• Analyzing with Melbourne BA to make clear about the confusing and complex function,

output the business logic map and finally implement it.

Tech Stack:

Scala, React, TypeScript, GraphQL, PostgresSQL, AWS Lambda, SNS/SQS

In this project, I am a full-stack engineer and actively contributed to:

• Master TypeScript & AWS Serverless skills – designed and implemented an event-driven micro-service architecture with AWS Lambda, API Gateway, SNS/SQS and DynamoDB.

• Automated CI/CD with GitHub Actions – built blue-green deployment pipelines and enforced quality gates that cut release time from hours to minutes.

• Infrastructure as Code with Terraform – authored reusable modules, enabling reproducible, auditable cloud environments across dev, staging and prod.

• Refactoring legacy services – decomposed monolithic code into loosely coupled Lambda functions, improving maintainability

• Observability & security – instrumented structured logging, AWS X-Ray tracing and fine-grained IAM policies to shorten MTTR and keep data secure.

Tech Stack:

TypeScript, AWS Lambda, API Gateway, SNS/SQS, DynamoDB, GitHub Actions, Terraform