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Definition of Reputation Credits
林宗翰 Jeff Lin
DevOps Engineer
Taipei City, Taiwan
Hi I am Jeff, I have 2 years experience in network maintenance and 3 years experience in software system development and operation. I hold 3 certifications from AWS, which are AWS DOP, AWS SAA and AWS CLF. I am familiar with Shell Script, Python programming, CI/CD, AWS/GCP Public Cloud, Linux Operating, Monitoring, and Troubleshooting.
Currently, I work as a DevOps Engineer at LILEE Systems. I am responsible for internal Engineering Tools, CI/CD, development, deployment, and maintenance of the company's SaaS products in the production environment. I am now working on IaC, SaC and CI/CD for a brand new project.
Work Experience
DevOps Engineer • Lilee Systems
三月 2023 - Present
．Achievements
1. Planned, designed, and implemented internal Engineering Tools backup and recovery solution (Including Gerrit Code Review, Jenkins, Nagios).
2. Efficiently planned computing and storage resources, achieving a 30% monthly cost reduction on AWS.
3. Defined RC Build to Improve release process.
4. Discussed, designed and implemented IaC, SaC and CI/CD for brand new project.
5. Discussed and performed upgrades for PostgresQL and Druid versions.
．Skills
AWS -
Compute: EC2, Lambda
High Availability: Load Balancer
Storage: EBS, S3, ECR
Networking: VPC, Subnet, NAT Gateway, Internet Gateway, Route 53
SaaS: ElastiCache
IaC: CloudFormation
Operations: IAM, CloudWatch, EventBridge, CloudTrail
Others -
Source Control Management: Git, Gerrit
Workflows: Git flow, Gerrit flow
CI/CD Tools: Jenkins, Ansible, VMware vSphere
IoT-related: MQTT, Kafka, Druid
Orchestration: Docker Swarm
．Responsibilities
1. Designing and optimizing IaC, SaC and CI/CD processes. .
2. (Production Environment) AWS cloud setup, maintenance, and management.
3. Maintenance of internal Engineering Tools (Gerrit Code Review, Jenkins, Nagios).
4. Monitoring (Nagios, Collectd, CloudWatch, Grafana).
5. Handling and troubleshooting production environment alerts. Identifying issues, and providing improvement directions or suggestions for RD.
6. Postmortem analysis, workarounds, and document writing.
Cloud System Engineer • 昕力資訊 TPIsoftware
十一月 2022 - 三月 2023
．Achievements
1. Set up CI/CD process using Bitbucket+AWS CodeBuild/CodePipeline.
2. Integrated LINE Notify API to inform the project team when builds and deployments are finished.
3. Migrated the company's on-premise product to AWS ECS and wrote deployment manual.
4. Developed a program to export AWS Security Hub data to .csv file by AWS Lambda and Python
5. Design, built and maintained the cloud architect for a project valued about NTD $6,000,000
．Skills
AWS -
Computing: EC2, Fargate, ECS, EKS, ECR, Lambda
High Availability: Load Balancer, Auto Scaling, CloudFront, Global Accelerator
Storage: RDS, S3, EBS, EFS
Transfer: Transfer Family, DMS
Networking: VPC, Subnet, NAT Gateway, Internet Gateway, VPN Gateway
CI/CD: CodeCommit, CodeBuild, CodeDeploy, CodePipeline
SaaS: OpenSearch
Operations: IAM, CloudWatch, CloudWatch Log, CloudWatch Event, CloudTrail, Config, Security Hub, Route 53
GCP -
Computing: GCE
Storage: Cloud Storage, Filestore
Networking: VPC, Subnet, Cloud NAT
CI/CD: Cloud Build
Common - Git, Jenkins
．Responsibilities
1. Cloud/On-Premise architecture design, implementation and maintenance:
a. Initial requirement analysis
b. Drawing architecture diagram
c. Cost estimation
d. Architecture built up
e. CI/CD process built up
f. OS/Application updates
g. Handling Emergency issue
2. Solving customer service/system/application issues with new technologies.
3. Solving customer service/system/application issues with new technologies.
4. Expanding and accumulating cloud-related technical experience in line with the company's operational development direction.
System Engineer • 乂迪生科技股份有限公司 EDISON TECHNOLOGY CO., LTD.
一月 2021 - 十月 2022
．Achievements:
1. Migration of On-Premise VMs to Public Cloud like AWS gradually.
2. Implementation of Microsoft 365 Throughout the whole company
3. Improved On-Premise HA architecture, transitioning from Apache to Haproxy+Nginx
4. Designed and built network architecture for the new overseas office.
5. Implementation of Prometheus+Grafana monitoring system.
6. Implementation of ELK Log Tracing solution gradually.
7. Devised solutions for resolving "users in China can not connect to AWS and TW On-Premise server" issue
8. Developed a mechanism to renew and deploy the SSL certifications automatically for about 100VMs and 300 subdomain.
．Skills:
AWS -
Computing: EC2
High Availability: LoadBalancer, AutoScaling, CloudFront
Storage: RDS, S3, EBS
Networking: VPC, Subnet, VPN Gateway
Operations: CloudWatch, Route 53
GCP -
Computing: Compute Engine, GKE, API Service
High Availability: LoadBalancer
Storage: RDS
Networking: VPC, Subnet, Cloud NAT
On-premise -
Virtualization: VMware, vSphere, vCenter
Containerization: Docker
Monitoring: Prometheus, Grafana
Log Tracing: ELK
．Responsibilities
1. Maintenance and management of WinServer/AD/M365.
2. Operation and management of Linux Base (CentOS/Ubuntu) operating systems.
3. Maintenance, management, and configuration of FortiGate Firewall.
4. Maintenance of Networking Switches.
5. Server room management and monitoring.
6. Operation of public cloud platforms such as AWS/GCP/Azure/Tencent Cloud/Baidu Cloud.
7. Operation and maintenance management of virtualization VMware vSphere vCenter (Dell VxRail hyper-converged).
8. Operation and maintenance management of NAS systems (Synology, Qnap).
9. System monitoring and operations (Prometheus, Grafana, ELK log server, CI/CD, etc.).
10. Version control management (SVN, Gitlab, etc.).
11. Configuration of Apache/Nginx/PHP website systems.
12. Email server management.
Maintenance Engineer • 今網智慧科技股份有限公司 KingNet Information Technology Co. Ltd.
十月 2018 - 十二月 2020
1. Networking Device and product Incoming Quality Control (IQC).
2. Maintenance of networking device and analysis of faults
3. Testing of NAT server feature (QoS, firewall, port forwarding, watchdog, etc.).
Education
國立台北科技大學 National Taipei University of Technology
Bachelor of Engineering - Electronic Engineering
2023 - 2026
東海大學 Tunghai University
Bachelor of Engineering - Information Engineering
2018 - 2023
Projects
LINE Bot Personal Assistant
Poject link: https://github.com/a866325272/line-bot
Description: Geographic weather information, weather forecasts, AI chat, AI drawing, accounting, web crawling(horoscope, random image retrieval, web page recording),maintenance and optimization
Duration: 2022/11-Now
Participant Time: Independently completed all the project
Responsibilities: Architecture design and implementation, Python programming, setup CI/CD processes
Technical Skills: Google Cloud Build, Container Registry, Gitlab, Jenkins, Docker, Line Message API, OpenAI API, Python, Nginx, Third-party APIs
Environment: Google Cloud Run - Python Flask, DSM Docker
AWS Cost Reduction
Description: Decrease AWS Production account costs by 30%
Duration: 2023/05-2023/09
Participant Time: Joined in the early phase of the project
Role: DevOps Engineer
Responsibilities: AWS usage, Kafka & Druid usage evaluation, AWS specification adjustments, optimization of the following monitoring
Technical Skills: EC2, EBS, Snapshot, AMI, Kafka, Druid, Nagios, Collectd, Grafana
Environment: AWS
Cloud-based API Gateway System Project for an Online Shopping Solutions Company
Description: Implementation of API Gateway product
Duration: 2022/10-2023/03
Participant Time: Joined in the middle phase of the project
Role: Cloud Architect
Responsibilities: Cloud architecture maintenance and optimization, Migration of API Gateway to AWS, maintenance and upgrade
Technical Skills: AWS WAF、Transit Gateway, OpenSearch, CodeBuild, CodePipeline, SQS, SNS, EFS
Environment: AWS EC2, ECS – AWS RDS MariaDB, DocumentDB, ElasticCache for Redis
Migration of the eDM System for an Airline Company
Description: Migration of the on-premise eDM system to GCP
Duration: 2022/10-2023/03
Participant Time: Joined in the early phase of the project
Role: Cloud Architect
Responsibilities: Cloud architecture design, implementation, and maintenance
Technical Skills: Google FileStore ,MachineImage, Cloud VPN , Cloud NAT, Cloud Logging, Cloud IAM
Environment: Google GCE MS Server – IIS, On-premise MS SQL Server
Certifications
AWS Certified DevOps Engineer - Professional
AWS Certified Solutions Architect - Associate
AWS Certified Cloud Practitioner
Skills
AWS GCP CI/CD Python Docker Linux Cloud Shell Script Jenkins Nagios Monitoring Prometheus Grafana KAFKA Druid ELK(ElasticSearch)
Languages
Chinese — Native English — Professional working proficiency
林宗翰 Jeff Lin
DevOps Engineer
Taipei City, Taiwan
Hi I am Jeff, I have 2 years experience in network maintenance and 3 years experience in software system development and operation. I hold 3 certifications from AWS, which are AWS DOP, AWS SAA and AWS CLF. I am familiar with Shell Script, Python programming, CI/CD, AWS/GCP Public Cloud, Linux Operating, Monitoring, and Troubleshooting.
Currently, I work as a DevOps Engineer at LILEE Systems. I am responsible for internal Engineering Tools, CI/CD, development, deployment, and maintenance of the company's SaaS products in the production environment. I am now working on IaC, SaC and CI/CD for a brand new project.
Work Experience
DevOps Engineer • Lilee Systems
三月 2023 - Present
．Achievements
1. Planned, designed, and implemented internal Engineering Tools backup and recovery solution (Including Gerrit Code Review, Jenkins, Nagios).
2. Efficiently planned computing and storage resources, achieving a 30% monthly cost reduction on AWS.
3. Defined RC Build to Improve release process.
4. Discussed, designed and implemented IaC, SaC and CI/CD for brand new project.
5. Discussed and performed upgrades for PostgresQL and Druid versions.
．Skills
AWS -
Compute: EC2, Lambda
High Availability: Load Balancer
Storage: EBS, S3, ECR
Networking: VPC, Subnet, NAT Gateway, Internet Gateway, Route 53
SaaS: ElastiCache
IaC: CloudFormation
Operations: IAM, CloudWatch, EventBridge, CloudTrail
Others -
Source Control Management: Git, Gerrit
Workflows: Git flow, Gerrit flow
CI/CD Tools: Jenkins, Ansible, VMware vSphere
IoT-related: MQTT, Kafka, Druid
Orchestration: Docker Swarm
．Responsibilities
1. Designing and optimizing IaC, SaC and CI/CD processes. .
2. (Production Environment) AWS cloud setup, maintenance, and management.
3. Maintenance of internal Engineering Tools (Gerrit Code Review, Jenkins, Nagios).
4. Monitoring (Nagios, Collectd, CloudWatch, Grafana).
5. Handling and troubleshooting production environment alerts. Identifying issues, and providing improvement directions or suggestions for RD.
6. Postmortem analysis, workarounds, and document writing.
Cloud System Engineer • 昕力資訊 TPIsoftware
十一月 2022 - 三月 2023
．Achievements
1. Set up CI/CD process using Bitbucket+AWS CodeBuild/CodePipeline.
2. Integrated LINE Notify API to inform the project team when builds and deployments are finished.
3. Migrated the company's on-premise product to AWS ECS and wrote deployment manual.
4. Developed a program to export AWS Security Hub data to .csv file by AWS Lambda and Python
5. Design, built and maintained the cloud architect for a project valued about NTD $6,000,000
．Skills
AWS -
Computing: EC2, Fargate, ECS, EKS, ECR, Lambda
High Availability: Load Balancer, Auto Scaling, CloudFront, Global Accelerator
Storage: RDS, S3, EBS, EFS
Transfer: Transfer Family, DMS
Networking: VPC, Subnet, NAT Gateway, Internet Gateway, VPN Gateway
CI/CD: CodeCommit, CodeBuild, CodeDeploy, CodePipeline
SaaS: OpenSearch
Operations: IAM, CloudWatch, CloudWatch Log, CloudWatch Event, CloudTrail, Config, Security Hub, Route 53
GCP -
Computing: GCE
Storage: Cloud Storage, Filestore
Networking: VPC, Subnet, Cloud NAT
CI/CD: Cloud Build
Common - Git, Jenkins
．Responsibilities
1. Cloud/On-Premise architecture design, implementation and maintenance:
a. Initial requirement analysis
b. Drawing architecture diagram
c. Cost estimation
d. Architecture built up
e. CI/CD process built up
f. OS/Application updates
g. Handling Emergency issue
2. Solving customer service/system/application issues with new technologies.
3. Solving customer service/system/application issues with new technologies.
4. Expanding and accumulating cloud-related technical experience in line with the company's operational development direction.
System Engineer • 乂迪生科技股份有限公司 EDISON TECHNOLOGY CO., LTD.
一月 2021 - 十月 2022
．Achievements:
1. Migration of On-Premise VMs to Public Cloud like AWS gradually.
2. Implementation of Microsoft 365 Throughout the whole company
3. Improved On-Premise HA architecture, transitioning from Apache to Haproxy+Nginx
4. Designed and built network architecture for the new overseas office.
5. Implementation of Prometheus+Grafana monitoring system.
6. Implementation of ELK Log Tracing solution gradually.
7. Devised solutions for resolving "users in China can not connect to AWS and TW On-Premise server" issue
8. Developed a mechanism to renew and deploy the SSL certifications automatically for about 100VMs and 300 subdomain.
．Skills:
AWS -
Computing: EC2
High Availability: LoadBalancer, AutoScaling, CloudFront
Storage: RDS, S3, EBS
Networking: VPC, Subnet, VPN Gateway
Operations: CloudWatch, Route 53
GCP -
Computing: Compute Engine, GKE, API Service
High Availability: LoadBalancer
Storage: RDS
Networking: VPC, Subnet, Cloud NAT
On-premise -
Virtualization: VMware, vSphere, vCenter
Containerization: Docker
Monitoring: Prometheus, Grafana
Log Tracing: ELK
．Responsibilities
1. Maintenance and management of WinServer/AD/M365.
2. Operation and management of Linux Base (CentOS/Ubuntu) operating systems.
3. Maintenance, management, and configuration of FortiGate Firewall.
4. Maintenance of Networking Switches.
5. Server room management and monitoring.
6. Operation of public cloud platforms such as AWS/GCP/Azure/Tencent Cloud/Baidu Cloud.
7. Operation and maintenance management of virtualization VMware vSphere vCenter (Dell VxRail hyper-converged).
8. Operation and maintenance management of NAS systems (Synology, Qnap).
9. System monitoring and operations (Prometheus, Grafana, ELK log server, CI/CD, etc.).
10. Version control management (SVN, Gitlab, etc.).
11. Configuration of Apache/Nginx/PHP website systems.
12. Email server management.
Maintenance Engineer • 今網智慧科技股份有限公司 KingNet Information Technology Co. Ltd.
十月 2018 - 十二月 2020
1. Networking Device and product Incoming Quality Control (IQC).
2. Maintenance of networking device and analysis of faults
3. Testing of NAT server feature (QoS, firewall, port forwarding, watchdog, etc.).
Education
國立台北科技大學 National Taipei University of Technology
Bachelor of Engineering - Electronic Engineering
2023 - 2026
東海大學 Tunghai University
Bachelor of Engineering - Information Engineering
2018 - 2023
Projects
LINE Bot Personal Assistant
Poject link: https://github.com/a866325272/line-bot
Description: Geographic weather information, weather forecasts, AI chat, AI drawing, accounting, web crawling(horoscope, random image retrieval, web page recording),maintenance and optimization
Duration: 2022/11-Now
Participant Time: Independently completed all the project
Responsibilities: Architecture design and implementation, Python programming, setup CI/CD processes
Technical Skills: Google Cloud Build, Container Registry, Gitlab, Jenkins, Docker, Line Message API, OpenAI API, Python, Nginx, Third-party APIs
Environment: Google Cloud Run - Python Flask, DSM Docker
AWS Cost Reduction
Description: Decrease AWS Production account costs by 30%
Duration: 2023/05-2023/09
Participant Time: Joined in the early phase of the project
Role: DevOps Engineer
Responsibilities: AWS usage, Kafka & Druid usage evaluation, AWS specification adjustments, optimization of the following monitoring
Technical Skills: EC2, EBS, Snapshot, AMI, Kafka, Druid, Nagios, Collectd, Grafana
Environment: AWS
Cloud-based API Gateway System Project for an Online Shopping Solutions Company
Description: Implementation of API Gateway product
Duration: 2022/10-2023/03
Participant Time: Joined in the middle phase of the project
Role: Cloud Architect
Responsibilities: Cloud architecture maintenance and optimization, Migration of API Gateway to AWS, maintenance and upgrade
Technical Skills: AWS WAF、Transit Gateway, OpenSearch, CodeBuild, CodePipeline, SQS, SNS, EFS
Environment: AWS EC2, ECS – AWS RDS MariaDB, DocumentDB, ElasticCache for Redis
Migration of the eDM System for an Airline Company
Description: Migration of the on-premise eDM system to GCP
Duration: 2022/10-2023/03
Participant Time: Joined in the early phase of the project
Role: Cloud Architect
Responsibilities: Cloud architecture design, implementation, and maintenance
Technical Skills: Google FileStore ,MachineImage, Cloud VPN , Cloud NAT, Cloud Logging, Cloud IAM
Environment: Google GCE MS Server – IIS, On-premise MS SQL Server
Certifications
AWS Certified DevOps Engineer - Professional
AWS Certified Solutions Architect - Associate
AWS Certified Cloud Practitioner
Skills
AWS GCP CI/CD Python Docker Linux Cloud Shell Script Jenkins Nagios Monitoring Prometheus Grafana KAFKA Druid ELK(ElasticSearch)
Languages
Chinese — Native English — Professional working proficiency