Technical Lead

Cathay Financial Holdings, DDT

Aug. 2020 - Present
Taipei, Taiwan

Technical Lead of 3 Products
- Tree Points (小樹點)
- Membership (MBS)
- Data Platform (DP)
- Third-party Service Platform (TSP)

Tech Stack
- Tree Points: AWS, EKS, SQS, NodeJS, Redis
- MBS, TSP: AWS, Lambda, Step Functions, SQS, Python, Redis
- DP: AWS, ECS, Lambda, Athena, RDS, Python, S3

Software Engineer

Cathay Financial Holdings, DDT

Jun. 2019 - Jul. 2020
Taipei, Taiwan

Tech Lead - Product of Tree Points (小樹點)
Software Engineer - Product of Tree Points (小樹點)
Scrum Master - Product of Tree Points (小樹點)
https://www.treepoints.com/

Introduction:
New type of point for LinYuan Group, provide api like "Point Combination Redeem", "Point Exchange", and "Grant Point"...etc. Backstage webpage has dashboard of "Point Usage", "Point Granted", and "Batch Point Grant"...etc for each Merchant. We also allow user to have campaign settings. You can easily set limit, quota, and amount for each campaign with campaign code you want.

In Charge:
## API - Tree Point
### Point Combination Redeem
Parallel Redeem with promise allSettled.
Revert with SAGA pattern, using SQS and event-listener

### Point Grant with Campaign
Able to have batch grant with maximum 500 point grant at same time.
Design and develop with BatchId and RequestId judgment for each trans.

### Redemption Code
Able to have redemption code for user to offer point card offline.
Design and develop redemption code request/claim process.

### Exchange Point
Allow user to exchange point from point to point.
Design and develop exchange point from X to Y, allow binding status judgement.

## Batch Jobs - Point-related operations
### Batch Granting
### Point Flow Processing
### Point Expiration

## Batch Jobs - Financial Report

## Backstage - Merchant Portal
### Approval Center
### Performance Tuning
With large amount transaction history, we faced the issue of querying problem.
By using Read/Write splitting and Service segmentation, successfully overcome the performance issue and service reliability.

## Infrastructure - AWS & CICD
### Gitlab CICD
Build up stages of:
Unit Test, Linter Test
SonarQube Scanning, SAST
Build
Migration
Deploy

### AWS
EKS: Setup, Deployment, Ingress, Readiness, Liveness
SQS: Design event queue and setup DLQ.

## Tech Stack
AWS, EKS, SQS, ECR, RDS, S3, CloudWatch,
NodeJS, NestJS, Angular7, Redis,
Typeorm, Jest, TSLint, SonarQube, Gitlab SAST,
Scrum

Senior Software Engineer

91app

Jan. 2019 - Jun. 2019
Taipei, Taiwan

Software Engineer

91app

Mar. 2018 - Dec. 2018
Taipei, Taiwan

Project of Official Shop Editor and User eXperiences Optimization.
https://www.91app.com/introducing-a-new-way-to-build-your-online-storefront/

By having components, like “Picture”, “Video”, and “Product List” …etc. We allow our customer to customize their official website and campaign pages. “What You See is What You Get”, based on this principle, backstage editor will have a review screen which is able to completely showing the actual website you have. We also provide api for apps, which means you can also have the fully control of your app’s styling.

In Charge:
Back-stage - Website Theme Editor
Functions: Preview, Publish, Save, Delete, and UnPublish…etc.
Components: Dashboard, Banner, Product, and Blog…etc.
Architecture: i18n, pubsub actions

Front-stage - Website Home Page
Cached Server Side Render Page
Preview link generator
Components

Front-stage - Website Hidden Campaign Page
Cached Server Side Render Page
Page link generator
Offline cached clear

2018/11/11 pressure test

Tech Stack:
React, Redux, RxJS, Node, Nginx, Redis, DynamoDB, K8s.

Customers:
Timberland: https://shop.timberland.com.tw/
Family: http://mart.family.com.tw/
Cosmed: http://shop.cosmed.com.tw/
Amai: http://www.amai.tw/
SO NICE: https://www.so-nice.com.tw/
…etcs.

擁抱改變 一起變強 國泰金控淬鍊多元技術人才  •  iThome

https://www.ithome.com.tw/pr/134597