劉昆鳴 Kunming Liu

Seasoned Full Stack Software Developer with 8+ years experience in Information System and the Blockchain industry. Solid software engineering experiences using multiple languages and infrastructures including NodeJS, Typescript, and Golang, as well as AWS. Well recognized for relentless problem solving skills and strong leadership. Led a team of 5 engineers developing an information security SaaS product to ensure timely and high quality delivery that meet internal and external stakeholders requirement.

Backend Engineer
Taipei City,TW
[email protected]



  • Golang
  • JavaScript & TypeScript
  • Java
  • Python
  • Solidity


  • AWS Lambda
  • AWS DynamoDB
  • AWS CloudFormation


  • Docker
  • GitHub
  • ESLint
  • Jest
  • Selenium


Bachelor Degree, Tatung University 2007 - 2011

Computer Science and Engineering


AWS Certified Developer – Associate 2021/05 - 2024/05

Work Experience

CoolBitX, Software Engineer, Dec 2019 ~ Sep 2022

- Provided guidance and led 5 developers, and coordinated all development work in a timely manner.
- Worked closely with the Project Manager, UI/UX Designer, and QA Engineer in ensuring project success.
- Managed technical development that is in line with our established architecture, technical designs, and development standards.
- Developed and maintained an auditing system on exchange users via TypeScript, GraphQL, Apollo Federation, AWS ECS Fargate for account managers to review.
- Designed and developed Restful APIs for exchanges to comply with the travel rules via TypeScript, Middy, AWS API Gateway, SQS, Lambda, Dynamodb.
- Designed and delivered a SaaS product that integrates multiple travel rule protocols, KYT(Know Your Transaction), and sanction screening services via Golang, Gin, GORM, PostgreSQL, React, TypeScript, Docker, AWS API Gateway, Lambda, RDS.
- Developed and maintained IaC(Infrastructure as Code) by AWS CDK to quickly replicate infrastructure between multiple environments.
- Developed and maintained CI/CD workflow by GitHub Actions and AWS Codebuild.

CoolBitX, Android Engineer, May 2018 ~ Dec 2019

- Developed and maintained CoolWallet applications for Android using Java.
- Developed and maintained cross-platform components for Android and iOS using React native, Redux Saga.
- Planned and implemented code that integrated third-party exchange APIs(Changelly, Shapeshift).
- Designed and implemented systems for WalletConnect and ERC20 tokens creation protocols.

TCC Information Systems Corp., Android Developer, Aug 2017 ~ May 2018

- Developed and maintained internal applications for data storage using Java
- Implemented an APP lock that prevents an operator from closing the APP and keeps the APP activated permanently.
- Designed and developed an application to enhance the data search efficiency via barcode scanning using Java, Retrofit, Greendao.

Kinpo Electronics, Software Engineer, Oct 2012 ~ Mar 2016

- Developed and maintained internal ERP system using PL-SQL, Oracle Form, Oracle Report.
- Designed and developed ERP supplemental applications for data visualization using Java.
- SOP preparation for the ERP supplemental applications and educated users on using the ERP supplemental applications.
- Provided troubleshooting to help users solve any problems with the ERP related applications.
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