Christopher Suk-hwan Yu
Welcome
Tech-Savvy
Proficient in various skills including programming, systems administration, cloud computing, and DevOps
Communication
Skilled in facilitating clear communication across diverse teams, ensuring seamless collaboration. Adept at translating technical concepts and resolving misunderstandings to drive projects forward.
Commitment
Dedicated to taking ownership of tasks, achieving objectives with a strong sense of responsibility, and continuously expanding knowledge through self-learning and professional development.
Resilience
Adaptable in high-pressure environments, overcoming technical challenges and tight deadlines with a problem-solving mindset to deliver successful outcomes
ABOUT CHRISTOPHER
SYSTEMS Administration
Programming
DEVOPS
PROJECT MANAGEMENT
Certifications
Certified Kubernetes Administrator (CKA)
AWS Certified Solutions Architect – Associate
HSK Level 5 (Chinese Proficiency)
SKILLS
Systems Administration
DEVOPS
Web Development
Server security
Skills & Expertise
Systems Administration
Experienced in managing on-premise and cloud infrastructure, particularly in AWS, with expertise in server operating systems like RHEL, CentOS, Windows Server, and Solaris. Strong background in data center administration, overseeing hardware, network, and server configurations.
Skilled in web servers like Apache and Tomcat, automation with PowerShell and Bash, and configuration management using Ansible and Terraform.
Proficient in virtualization, monitoring with Zabbix and Graylog, and technologies like Exchange Mail, DNS, Active Directory, NetApp ONTAP Storage, and Squid Proxy.
Programming
Proficient in programming with experience across multiple languages.
In Java, I have optimized JVM performance, run sample code to verify modules before deploying them to production, and managed Java-based web services in my previous role. I also have some experience with Android programming.
Skilled in C/C++, with strong problem-solving abilities developed during university and through algorithm challenges.
Proficient in JavaScript and SQL for web development, and familiar with Python.
DevOps
Experienced in container orchestration, managing a 24/7 OpenShift cluster, git repositories, and overseeing integration and deployment pipelines.
Skilled in Docker, OpenShift, GitLab, and Kubernetes, and skilled in Jenkins for automation and continuous delivery.
Project Management
Have experince of leading the M365 onboarding project for 1000+ employees, overseeing the integration of the global entity's infrastructure with local systems. Managed cross-functional teams through weekly meetings, ensuring tasks were aligned with project goals and timelines.
Reduced estimated project lead time of 8 months to 4 months by performing tasks concurrently and optimizing resource allocation.
Coordinated server and network configurations, provided hands-on support, and facilitated weekly meetings with 50+ global and local counterparts to address technical, security, and contract issues, with additional irregular meetings to resolve challenges and ensure alignment.
Other Expertise
Experienced in server security and compliance using CIS Benchmarks, and PingCastle to secure Windows Active Directory environments.
Have experience of resolving complex network connectivity challenges arising from the separation of network zones between servers, PCs, and the internet, ensuring secure and compliant operations across all network zones.
With a background in both Business and Computer Science, possess a cross-functional mindset, bridging both technical and business perspectives to ensure effective collaboration between technical teams and business stakeholders.
Built With
Technologies That Make This Website Work
Render
Backend - Node.js runtime
Supabase
Database - PostgreSQL
HTML
Structure
CSS
Styling
Javascript
Client side functionality
Bootstrap
Responsive design
jQuery
DOM Manipulation
Node.js
Runtime environment
EJS
Templating engine
Express
Web framework for Node.js
PostgreSQL
Database
My Journey
Education and Work Experience
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2013
-
MAR
Sogang University
Seoul, Republic of Korea
Started bachelor's degree program
-
2014
-
NATIONAL SERVICE
AUG
Seoul, Republic of Korea
2 years of mandatory national service, as required by the Republic of Korea (Aug 2014-Aug 2016)
Received the Exemplary Award from the mayor of Seoul
-
2019
-
Aug
Nanyang Technological University
Singapore, Singapore
One-semester exchange program
Computer Science
(Aug 2019-Dec 2019) -
2021
-
Sogang University
FEB
Seoul, Republic of Korea
Graduated from Sogang University (Double major)
Bachelor of Business Administration - Business Administration
Bachelor of Science in Engineering - Computer Science and Engineering -
MAR
AXA General Insurance Co. Ltd.
Seoul, Republic of Korea
Started working as System Administrator
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2023
-
AXA General Insurance Co. Ltd.
FEB
Seoul, Republic of Korea
Started an additional role as Project Manager
-
JUN
Soochow University
Taipei, Republic of China (Taiwan)
Mandarin Chinese language program (Jun 2023-Nov 2023)
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More
Activities
Highlighted Activities I've Been Involved In
Android App Development
Android App Development
in Nanyang Technological University
Developed a social media android application for Singapore's sporting events and public sports facilities
Coding Competitions
Coding Competitions
1. 2019: Data analytics competition, Singapore - Used Python with Pandas and NumPy
2. 2021: Startup coding festival, Korea - Advanced to the second round
Algorithm Problem Solving
Algorithm Problem Solving
Gained proficiency in data structures and algorithms through programming in C/C++
Computer Club
Sogang Computer Club (SGCC)
in Sogang University
As Vice President, organized and participated in group study sessions, membership training, and seminars for 80+ members in univsersity