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鄭晉丞
Technical Lead
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鄭晉丞

Technical Lead
An experienced DevOps Engineer with over 5 years of software engineering expertise in fintech and blockchain, skilled in software architecture design, infrastructure operations, and backend development. Led multiple projects, establishing high-availability microservices architectures.
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Hashgreen Labs
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National Taichung University of Science and Technology
台北市, 台灣
Taiwan

Featured Resume

Last updated on Oct 26th 2024
Uploaded on Oct 26th 2024

Professional Background

  • Current status
    Employed
    Ready to interview
  • Profession
    Back-end Engineer
    Blockchain Platform Engineer
    DevOps / System Admin
  • Fields
    Blockchain
  • Work experience
    6-10 years (6-10 years relevant)
  • Management
    I've had experience in managing 5-10 people
  • Skills
    Golang Backend
    Site Reliability Engineer
  • Languages
    Chinese
    Native or Bilingual
    English
    Beginner
  • Highest level of education
    Master

Job search preferences

  • Desired job type
    Full-time
    Interested in working remotely
  • Desired positions
    Golang Backend Developer / 後端工程師
  • Desired work locations
    Taipei City, Taiwan
  • Freelance
    Part-time freelancer

Work Experience

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Technical Lead

Sep 2021 - Present
- Led a 5-member team implementing agile and DevOps practices from scratch, using JIRA for task tracking, GitHub Actions for CI/CD, and Docker for containerization, improving workflow efficiency by 20%. - Developed and deployed a decentralized exchange (DEX) and SwapDeFi solution using Chia blockchain. Created backend services with Golang, gRPC for service communication, Gin as a web framework, and utilized AWS EKS for Kubernetes deployment, enhancing service stability and scalability. - Designed Blockchain Explorer and Node as a Service using microservices architecture, employing Docker, Helm, and Kafka for real-time data streaming and container orchestration. This setup enabled users to query blockchain data and receive real-time transaction updates efficiently, significantly enhancing system transparency and data accessibility.
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Site Reliability Engineer

Jun 2020 - Feb 2021
9 mos
- Implemented a monitoring and log system using ELK Stack (Elasticsearch, Logstash, Kibana), integrated with Grafana and Prometheus, enabling engineers to analyze logs directly in Kibana, reducing reliance on server access and improving diagnostic efficiency. - Developed a configuration management prototype similar to HashiCorp Vault, focused on secure application configuration and encryption. This prototype enhanced configuration security management before a company-wide layoff halted further development.
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Software Engineer

Oct 2019 - Mar 2020
6 mos
Created a self-service website with RBAC for user permissions and activity tracking using React for frontend and .NET Core for backend, deployed on AWS EKS, utilizing Helm for Kubernetes orchestration, which improved system responsiveness and security. Built an SSO security enhancement service using Kafka for publish-subscribe decoupling, integrated with device detection and alerts, which significantly strengthened authentication security.

System Engineer

Sep 2016 - Apr 2019
2 yrs 8 mos
Developed a bulletin system using .NET Core RESTful API and Angular 2 for the management interface, integrated with RabbitMQ for real-time messaging, improving user engagement by 30%. Implemented a GitLab-based CI pipeline with Docker for containerization, automating build, test, and deployment processes, which reduced development cycle time by 20% and improved version control efficiency.

Education

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Master’s Degree
Computer and Information Sciences, General
2014 - 2016
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Bachelor’s Degree
Computer and Information Sciences, General
2010 - 2014