Tsim Y.

Work experiences: (A) Tech Lead of Infrastructure PT. Elektronik Distribusi Otomatisasi Terkemuka (eDOT) Jakarta, Indonesia 29/07/2024 - now 1. Manage the whole infrastructure teams which consists of junior and senior engineers. 2. Educating the company’s developer communities and spreading DevOps cultures by having regular sharing sessions to other managers from other engineering teams, so that they have a strong sense of ownership and have the big picture regarding the company’s software infrastructure and architecture. 3. Pioneering automations by using Terraform, Helm, and Ansible to build infrastructure as a code with AWS that includes 100% of cloud computing areas, like EKS, networking, security, and database. 4. Reduced company’s cost of AWS usage by 10% and increasing for development, staging, and production environments. (B) Lead DevOps Engineer PT Brankas Teknologi Indonesia Jakarta, Indonesia 03/2022 - 08/2023 1. Educating the company’s developer communities and spreading DevOps cultures by having regular sharing sessions about software infrastructure and system engineering best practices. 2. Designed, implemented, and maintained best practices of system architecture and infrastructure using Terraform and custom automations. This includes software development life cycle; CI/CD; alerting and monitoring; cloud computing using both GCP and AWS; networking; database; security; and overall system engineering. 3. Migrated 100% of core applications or microservices from 1 GCP project to another because of business and government requirements. 4. Obtained the certifications of PJP (a permit from Bank of Indonesia to do financial transactions), ISO 270001, and PCI DSS by collaborating with compliance and business teams; preparing necessary documents; ensuring the IT systems to always conform to the latest technological standards; and being the sole representative of the company’s IT Infrastructure Department and using interpersonal skills to influence a variety of stakeholders from the government to executives. 5. Consult with more than 6 external customers to gather requirements for using cloud computing technologies (such as AWS). Design, implement, and build industry-relevant architectures that include software development, CI/CD, security, networking, and databases, based on customer’s feedback and business needs. (C) Senior Platform Engineer PT Visionet Internasional (OVO) Jakarta, Indonesia 10/2019 - 12/2021 1. Designed, implemented, and maintained best practices of system architecture and infrastructure that includes software development life cycle; CI/CD; cloud computing using both GCP and AWS; networking; database; security; and overall system engineering. 2. Migrated and transformed the company’s legacy core applications or microservices from VMWare to GCP using Terraform, Jenkins, and custom Python scripts. 3. Modernized CI/CD and cloud infrastructure-related resources creation by writing Python and Jenkins codes to generate Terraform codes for the new services migrating from VMWare to Google Cloud Platform. 4. Supervised 100% of infrastructure related changes by being the point of contact for the team to fix production issues at all hours of the day. (D) Senior DevOps Engineer & Fullstack Engineer PT Tokopedia Jakarta, Indonesia 04/2017 - 07/2019 1. Replaced Opegenie and reduced the on-call system cost by almost 50% by implementing an open source on-call project into the company’s system. 2. Automated handling mundane system issues like high CPU/memory usage by building a system that replaced humans to solve such problems using Stackstorm and Python. 3. Pioneered the first Machine Learning deployment for the Data Team using Terraform and Jenkins. 4. Invented a custom web-based alerting and monitoring system to centralize 100% of the alerts in the company