Sangjin is an extremely talented front-end developer with a keen eye for design and a deep understanding of web development principles. He has consistently impressed me with his ability to turn complex designs into beautiful, functional websites that load quickly and run smoothly.

Sangjin is an excellent collaborator and communicator, always willing to work with designers and other developers to ensure that projects are completed on time and to the highest possible standards. He is also a quick learner who is always seeking out new technologies and techniques to improve his skills and knowledge.

Jean Georges / Co-founder & CTO at TOOTI Inc.

Sangjin has shown a strong ability to lead cross-functional teams and collaborate with stakeholders to deliver high-quality products that meet the company's goals and objectives. He possess excellent communication skills, which enables him to articulate his ideas and vision effectively to the team and clients. His attention to detail and ability to prioritize work has also led to the timely delivery of projects.

Furthermore, Sangjin has demonstrated an excellent ability to understand customer needs and translate them into product requirements. His data-driven approach to product management has also enabled him to make informed decisions about product features and roadmaps.

Catherine Hong / Founder & CEO at TOOTI Inc.