Collaborated on all stages of the system development lifecycle, from requirement gathering to product releases.Assigned tasks to junior engineers and tracked their progress. Reviewed their code and design, and provided feedback for improvement.Holistically improved the prototype program and developed it into an enterprise grade solution.Developed and deployed a more scalable solution to run Samsung Group’s email system.Developed a scalable multi-thread mail delivery server, a mail filtering engine, and POP3/IMAP serversReleased the product including 20% more features than the initial requirements in time.Designed algorithms to integrate clustered Oracle DB data while maintaining data consistency..