Experience

LGCNS Europe
• Software Development
• 1 - 100 Employee
• Spcialist

  • Feb 2022 - Present


SSG.COM Corp

• South Korea
• Information Technology & Services
• 200 - 300 Employee

• Web Developer

  • Apr 2016 - Feb 2021

  Simple Payment service development  Developed a service that allows a user to pay with a registered card by entering password.  Developed security keypad API using module of NSHC company.  Developed receiving card issuance information, authentication, and approval API (RSA, SEED encryption/decryption).  Developed a system that regularly requests payment for the users with the payment key assigned to each card. Payment service operation and development  Developed a back-office system that manages standard information used for settlement.  Upgrade payment method: added partial cancellation and real-time refund processing.  Enhanced payment information communication security using AES256 and AES128.  Reinforced security by converting web communication with credit card authentication companies to dedicated PORT communication and RSA authentication.  Developed a system that uses REST APIs to generalize complex requests and process payments with one-time keys.  Added additional payment options such as Samsung Pay, Kakao Pay, Payco: Developed API for authentication, approval, sending and receiving SFTP files Payment system integration work  Developed an API that accepts payment requests from other operators as a single request, separates them, and approves/cancels them.  Developed user integrated mileage inquiry API and WEB page. Show less



AKIS

• Poland
• Design Services
• 1 - 100 Employee

• WEB Developer

  • Aug 2009 - Apr 2016

  Website development  Culture Academy Site: Developed functions such as course management and member information management.  Recruitment site: Developed FRONT site with application creation and submission function and ADMIN site with application confirmation and recruitment processing function.  Developed calendar, bulletin board with file input/output function, web page such as SNS post linkage, DM EMAIL HTML production system, and other bulletin boards. Promotion system development  Developed a batch that applies department store discount coupons to customer membership cards.  Developed a system that reads and stores large amounts of data from files using multithreading. Show less