Duy Luong Anh

A SaaS company specialized in providing AI OCR services. I leads the development and maintenance of one of the main product of the company: APIs for text detection of Japanese receipt/invoice documents. When I joined the company, it was a big monolith PHP app running on a bunch of EC2 instances. It was slow, hard to maintain and add new features. It would took hours just to release a bug fix. I performed numerous remarkable improvements to the product to make it more robust, more scalable and easy to maintain:

• Containerize all apps to run on docker
• Rewrite major part of product adopting microservices architecture. Golang is the main language being used.
• Infra migration: move apps from running on EC2 instances to Kubernetes platform (Amazon EKS)
• Build CI/CD automation pipeline from scratch using Jenkins/ArgoCD/Github Actions.
• Adopting Datadog to realize application logs aggregation and to enhance applications/infra monitoring.
• Implement autoscaling mechanism for AI services to cut GPU instances cost by half.

My daily works include following tasks:

• Member of 5 persons cross functional scrum team. We pursuit DevOps best practices and take care of both development and operation of services.
• Take part in architecture design
• Review code for other member
• Programming new features
• Operation tasks: problems troubleshooting / infrastructure monitoring

Awards

• 2019 First Half CEO's Award (社長賞)
• 2019 Second Half MVP
• 2021 Second Half CEO's Award (社長賞)

• Design and development of image processing based strain/displacement measurement software.
• C#/C++ in Windows environment was the main technical stack being used.
• Working hand in hand with hardware team in all product development phases ranging from prototyping to production release.
• Read research papers, implement and evaluate algorithms. Implement necessary product improvements if the algorithm is effective.
• Took part in government funded project: Application of image processing techniques on bridge/infra inspection.

https://www.nedo.go.jp/content/100886928.pdf

This is where I started my software engineering career. I took part in development and operation of several EC websites using PHP/Laravel framework.