I bring 8 years of experience with C# (ASP.NET) and 3 years of experience with Java (Spring). My primary responsibilities have included maintaining internal programs within the company and developing small to medium-sized applications based on the requirements of various teams. I have always valued hands-on experience, and this mindset naturally carried over into my journey of learning new machine learning (ML) libraries. For my graduation thesis, I chose to explore this interest by implementing and comparing two models for sentiment analysis on news data. Through this process, I gained a deeper understanding of the importance of data preprocessing and the strengths and limitations of different ML approaches, including Transformer and LSTM architectures. I also take pride in delivering software that meets client needs and improves work efficiency. I enjoy learning and adopting new technologies through project requirements.

Hyunykyung Oh (Claire)

I bring 8 years of experience with C# (ASP.NET) and 3 years of experience with Java (Spring). My primary responsibilities have included maintaining internal programs within the company and developing small to medium-sized applications based on the requirements of various teams. I have always valued hands-on experience, and this mindset naturally carried over into my journey of learning new machine learning (ML) libraries. For my graduation thesis, I chose to explore this interest by implementing and comparing two models for sentiment analysis on news data. Through this process, I gained a deeper understanding of the importance of data preprocessing and the strengths and limitations of different ML approaches, including Transformer and LSTM architectures. I also take pride in delivering software that meets client needs and improves work efficiency. I enjoy learning and adopting new technologies through project requirements.

Available to hire

I bring 8 years of experience with C# (ASP.NET) and 3 years of experience with Java (Spring). My primary responsibilities have included maintaining internal programs within the company and developing small to medium-sized applications based on the requirements of various teams. I have always valued hands-on experience, and this mindset naturally carried over into my journey of learning new machine learning (ML) libraries.

For my graduation thesis, I chose to explore this interest by implementing and comparing two models for sentiment analysis on news data. Through this process, I gained a deeper understanding of the importance of data preprocessing and the strengths and limitations of different ML approaches, including Transformer and LSTM architectures. I also take pride in delivering software that meets client needs and improves work efficiency. I enjoy learning and adopting new technologies through project requirements.

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Experience Level

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Work Experience

Senior Developer at Vision IT, Oznet Korea
November 1, 2022 - November 1, 2022
Continuous and reliable operation of existing systems. Analyze and respond to customer requests for new program development. Program design and development, documentation. Providing training and mentoring to junior developers within the team. Managed projects and a team of 2. Technologies used included Spring framework, Java, .NET framework, C#, Oracle, WebLogic, and IIS. Projects included Guesthouse Reservation System for Employees (FP271), Camera Rental Management System (FP213), Management System for 10 Key Initiatives at Headquarters (FP146), and Conversation System with the Head of Headquarters (FP38). Maintained 15 web programs and web bulletin boards.
Intermediate Developer at Korean Register of Shipping (KRS)
December 1, 2013 - December 1, 2013
Member of the Information Technology Team; Project management of new system development by outsourcing. Continuous and reliable operation of existing systems. Program design and development, documentation. Operations and server management for e-mail system usage.
Junior Developer at Open Systems – South Korea
January 1, 2007 - January 1, 2007
Dispatched to a customer company called Daelim Corporation to do ICT work. Continuous and reliable operation of existing systems. Technologies used included Java (EJB), JBuilder, Delphi, Oracle.
Senior Developer at Vision IT, Oznet Korea
November 30, 2022 - November 30, 2022
Responsible for continuous and reliable operation of existing systems, analysis and response to customer requests for new program development, program design and development, documentation, and mentoring junior developers. Led multiple projects including Guesthouse Reservation System for employees, Camera Rental Management System, and key initiatives at the headquarters; supported maintenance of 15 web programs and web bulletin boards.
Intermediate Developer at Korean Register of Shipping (KRS)
December 31, 2013 - December 31, 2013
Project management of new system development by outsourcing; ensured continuous operation of existing systems; program design and development, documentation; managed IT services for employees, including email system and server duties; renewal of websites.
Junior Developer at Open Systems
January 31, 2007 - January 31, 2007
Dispatched to a customer company (Daelim Corporation) to perform ICT work; ensured continuous operation of existing systems; worked on Java (EJB), JBuilder, Delphi with Oracle; maintained a web program and a server-client program.

Education

Master of Information Technology at Whitireia / Weltec Polytechnic
July 1, 2023 - November 1, 2024
Master of Information Security Engineering at University of Science and Technology
October 1, 2025 - November 3, 2025
Bachelor of Computer Science and Information Engineering at Sungshin Women’s University
March 1, 1999 - February 1, 2003
Master of Information Security Engineering at University of Science and Technology
July 1, 2023 - November 1, 2024
Master of Information Technology at Whitireia / Weltec Polytechnic
January 11, 2030 - November 3, 2025
Bachelor of Computer Science and Information Engineering at Sungshin Women’s University
March 1, 2007 - February 28, 2009

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Education, Energy & Utilities, Government

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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