• Successfully built a decentralized on-chain perpetual and spot exchange system, enhancing blockchain capabilities with Solidity and Hardhat expertise.• Effectively integrated and managed services on Layer 1 & 2 chains such as Klaytn, Optimism and Aurora, optimizing user experiences and cost efficiency.

Tickle provides a mobile application facilitating micro-investments in stock markets across South Korea and the United States, concurrently offering comprehensive asset management services.• Developed service business logic using Node.js, GraphQL, and REST API.• implemented financial data input/output and optimization through open banking APIs and data scraping (Puppeteer).• Managed server deployment, error monitoring, and operations using AWS and Serverless Framework.•… Show more Tickle provides a mobile application facilitating micro-investments in stock markets across South Korea and the United States, concurrently offering comprehensive asset management services.• Developed service business logic using Node.js, GraphQL, and REST API.• implemented financial data input/output and optimization through open banking APIs and data scraping (Puppeteer).• Managed server deployment, error monitoring, and operations using AWS and Serverless Framework.• Proficiently managed financial data using NoSQL databases, specifically AWS DynamoDB, ensuring secure and efficient data handling within the realm of finance. Show less

• Working in Softbank as a System Engineer in Tokyo, Japan.• Responsible for supporting customers’ NPS, which is an index measure the willingness of customers to recommend Softbank’s retail stores to others.• Planning and managing the project, and developing and introducing 3rd party SaaS services (Medallia, Auth0) to optimize user experience.•Related work : Project Managing, SSO, SAML, NPS and etc.

• Manage Start-up Companies participate in Start-up Audition.• Interpret and translate English to Korean and Korean to English for participants.• Assist hosting The 3rd Global Innovator Festa (IT Startups Conference)

• In Dusit Thani Maldives, managed front desk operations including check-ins and check-outs for seven months.• Coordinated room assignments and managed accommodations using the Opera system.• Provided warm welcomes to guests, both in person and via telephone, enhancing guest experiences.

As an intern of YB Tour, Top direct travel Agency in South Korea, • Contact customers to respond or to notify them of claim results or any planned adjustments.• Plan, describe, arrange and sell itinerary tour packages offered by various travel carriers.• Assemble and issue required documentation, such as visas, and travel insurance policies.

•Prepare and deliver lectures to High School students on listening, and speaking English.•Guide and counsel students with adjustment or academic problems, or interests.