Changgyu Oh
Staff Software Engineer at ClubLabs- Claim this Profile
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English Native or bilingual proficiency
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Korean Native or bilingual proficiency
Topline Score
Bio
Katherine Merrick
I met Chang when I was a Product Owner for the Scrum Team building the Rules Engine - it's a CDN customer configuration tool with very complex validation logic. He joined the team when we were already in the middle of this project. Right from the start I was very impressed with his deep technical knowledge and attention to details. Chang is a good listener and fast learner. Most importantly, he showed genuine interest in all things CDN and Rules Engine. Very quickly he became indispensable. I admire his fundamental approach, he likes to get to the bottom of things. We spent a lot of time together talking, brainstorming and learning from each other. Chang is an extremely professional and hardworking person. He always has a lot of good ideas for improvements and optimization, shows a great deal of initiative, cares about his work, puts significant effort into it and delivers high quality results. Chang quickly earned my trust, and I know I can come to him with the most delicate and technically complex issues. He consistently exceeded my expectations. I am extremely happy that Chang was a part of my team and grateful for his tremendous contributions to our success. We worked together for several years and it's a real pleasure. Thank you, Chang !
Joseph Lee
Chang was a pleasure to work with. He is a very intelligent individual, and always strives to improve. His knowledge in .NET, ASP.NET and TFS is solid, and contributed to the team tremendously. I have learned a lot from him. Chang is a team player and was always willing to help out the team when needed, even if he was busy. It was awesome working with Chang, and I would DEFINETELY recommend him.
Katherine Merrick
I met Chang when I was a Product Owner for the Scrum Team building the Rules Engine - it's a CDN customer configuration tool with very complex validation logic. He joined the team when we were already in the middle of this project. Right from the start I was very impressed with his deep technical knowledge and attention to details. Chang is a good listener and fast learner. Most importantly, he showed genuine interest in all things CDN and Rules Engine. Very quickly he became indispensable. I admire his fundamental approach, he likes to get to the bottom of things. We spent a lot of time together talking, brainstorming and learning from each other. Chang is an extremely professional and hardworking person. He always has a lot of good ideas for improvements and optimization, shows a great deal of initiative, cares about his work, puts significant effort into it and delivers high quality results. Chang quickly earned my trust, and I know I can come to him with the most delicate and technically complex issues. He consistently exceeded my expectations. I am extremely happy that Chang was a part of my team and grateful for his tremendous contributions to our success. We worked together for several years and it's a real pleasure. Thank you, Chang !
Joseph Lee
Chang was a pleasure to work with. He is a very intelligent individual, and always strives to improve. His knowledge in .NET, ASP.NET and TFS is solid, and contributed to the team tremendously. I have learned a lot from him. Chang is a team player and was always willing to help out the team when needed, even if he was busy. It was awesome working with Chang, and I would DEFINETELY recommend him.
Katherine Merrick
I met Chang when I was a Product Owner for the Scrum Team building the Rules Engine - it's a CDN customer configuration tool with very complex validation logic. He joined the team when we were already in the middle of this project. Right from the start I was very impressed with his deep technical knowledge and attention to details. Chang is a good listener and fast learner. Most importantly, he showed genuine interest in all things CDN and Rules Engine. Very quickly he became indispensable. I admire his fundamental approach, he likes to get to the bottom of things. We spent a lot of time together talking, brainstorming and learning from each other. Chang is an extremely professional and hardworking person. He always has a lot of good ideas for improvements and optimization, shows a great deal of initiative, cares about his work, puts significant effort into it and delivers high quality results. Chang quickly earned my trust, and I know I can come to him with the most delicate and technically complex issues. He consistently exceeded my expectations. I am extremely happy that Chang was a part of my team and grateful for his tremendous contributions to our success. We worked together for several years and it's a real pleasure. Thank you, Chang !
Joseph Lee
Chang was a pleasure to work with. He is a very intelligent individual, and always strives to improve. His knowledge in .NET, ASP.NET and TFS is solid, and contributed to the team tremendously. I have learned a lot from him. Chang is a team player and was always willing to help out the team when needed, even if he was busy. It was awesome working with Chang, and I would DEFINETELY recommend him.
Katherine Merrick
I met Chang when I was a Product Owner for the Scrum Team building the Rules Engine - it's a CDN customer configuration tool with very complex validation logic. He joined the team when we were already in the middle of this project. Right from the start I was very impressed with his deep technical knowledge and attention to details. Chang is a good listener and fast learner. Most importantly, he showed genuine interest in all things CDN and Rules Engine. Very quickly he became indispensable. I admire his fundamental approach, he likes to get to the bottom of things. We spent a lot of time together talking, brainstorming and learning from each other. Chang is an extremely professional and hardworking person. He always has a lot of good ideas for improvements and optimization, shows a great deal of initiative, cares about his work, puts significant effort into it and delivers high quality results. Chang quickly earned my trust, and I know I can come to him with the most delicate and technically complex issues. He consistently exceeded my expectations. I am extremely happy that Chang was a part of my team and grateful for his tremendous contributions to our success. We worked together for several years and it's a real pleasure. Thank you, Chang !
Joseph Lee
Chang was a pleasure to work with. He is a very intelligent individual, and always strives to improve. His knowledge in .NET, ASP.NET and TFS is solid, and contributed to the team tremendously. I have learned a lot from him. Chang is a team player and was always willing to help out the team when needed, even if he was busy. It was awesome working with Chang, and I would DEFINETELY recommend him.
Credentials
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Hackerrank-SQL Basic
HackerRankSep, 2020- Oct, 2024 -
Hackerrank-SQL-Advance
HackerRankSep, 2020- Oct, 2024 -
Hackerrank-SQL-Intermediate
HackerRankSep, 2020- Oct, 2024 -
Akamai Web Performance Cert
Akamai TechnologiesDec, 2015- Oct, 2024 -
MCITP: Database Developer on SQL Server 2005
MicrosoftFeb, 2007- Oct, 2024 -
MCTS: SQL Server 2005
MicrosoftJan, 2007- Oct, 2024 -
MCPD: Enterprise Application Developer
MicrosoftDec, 2006- Oct, 2024 -
MCTS: .Net Framework 2.0, Distributed Applications
MicrosoftDec, 2006- Oct, 2024 -
MCTS: .Net Framework 2.0, Web Applications
MicrosoftOct, 2006- Oct, 2024 -
MCTS: .Net Framework 2.0, Windows Applications
MicrosoftOct, 2006- Oct, 2024 -
MCSE1: Windows Server 2003
MicrosoftNov, 2005- Oct, 2024 -
MCSE1: Windows Server 2003
MicrosoftNov, 2005- Oct, 2024 -
MCSA1: Windows Server 2003
MicrosoftOct, 2005- Oct, 2024 -
MCSD1: Microsoft .NET
MicrosoftJun, 2005- Oct, 2024 -
MCAD: Microsoft .NET
MicrosoftApr, 2005- Oct, 2024 -
MCPS: Microsoft Certified Professional
MicrosoftApr, 2005- Oct, 2024 -
Hackerrank-Problem Solving
HackerRank
Experience
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ClubLabs
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United States
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Insurance
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1 - 100 Employee
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Staff Software Engineer
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Apr 2022 - Present
TBD TBD
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Yahoo
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United States
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Technology, Information and Internet
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700 & Above Employee
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Tech Team Lead , Sr. Software Engineer
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Jul 2018 - Apr 2022
DotNet Core/Docker/Kubenetes/WebAPI/MSSQL TerraForm/GoLang/AWS Angular/Custom Monaco Editor DotNet Core/Docker/Kubenetes/WebAPI/MSSQL TerraForm/GoLang/AWS Angular/Custom Monaco Editor
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NEOGOV
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United States
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Software Development
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400 - 500 Employee
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Team Lead(Sr. Software Engineer)
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Jun 2017 - Jun 2018
Lead a software engineering team. Lead a software engineering team.
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Sony Pictures Entertainment
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United States
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Entertainment Providers
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700 & Above Employee
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Principal Software Engineer+Software Engineering Manager
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Jul 2015 - Apr 2017
Managed two teams. Delivered a system runs Sony Steaming Service.Azure, AWS Cloud, Akamai, Anguler, Java, C#, SQL
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Team Lead
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Aug 2014 - Jul 2015
Lead two engineering teams
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Sr. .NET Developer
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Nov 2011 - Aug 2014
TFS, CI, Javascript, Java, C#, SQL
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City National Bank
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United States
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Banking
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700 & Above Employee
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Assistant Vice President
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Jan 2010 - Nov 2011
Built inter banking system Built inter banking system
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Lead Software Architect
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Aug 2009 - Jan 2010
Built Ads Platforms Built Ads Platforms
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The Recording Academy
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Musicians
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700 & Above Employee
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Sharepoint Consultant
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Aug 2009 - Aug 2009
Sharepoint project. Sharepoint project.
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Senior .NET Software Engineer
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Jun 2008 - Jun 2009
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Neudesic
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United States
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IT Services and IT Consulting
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700 & Above Employee
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Senior Consultant
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Sep 2007 - Jun 2008
Senior Consultant in Custom App Development Senior Consultant in Custom App Development
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Avanade
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United States
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IT Services and IT Consulting
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700 & Above Employee
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Solution Developer
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Mar 2006 - Aug 2007
Software Engineering consultant Client Companies (Farmers Insurance, Fox, Miller Brewing Company, Creative Artists Agency) Software Engineering consultant Client Companies (Farmers Insurance, Fox, Miller Brewing Company, Creative Artists Agency)
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Alphapointe
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United States
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Non-profit Organizations
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100 - 200 Employee
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Network Administrator
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May 2002 - Jan 2006
In addition to the role as Network administrator, I performed DBA, web/window developing, and customer supports. Administrating Microsoft domain network including about 100 computers and developed inhouse websites and database applications. Also provided trouble shootings and customer supports. In addition to the role as Network administrator, I performed DBA, web/window developing, and customer supports. Administrating Microsoft domain network including about 100 computers and developed inhouse websites and database applications. Also provided trouble shootings and customer supports.
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Education
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University of Missouri-Kansas City
MS, Computer Science -
University of Missouri-Kansas City
BS, Computer Science