Develops blockchain businesses and services including RWA in Indonesia.

Developed a blockchain API service (klaytnapi.com) and an NFT marketplace (klipdrops.com).

Conducting a series of tech sessions and meetups for blockchain developers; helping developers use Klaytn so they can create quality blockchain applications (BApps)

• Responded to business/tech partners regarding Klaytn and its technology• Participated fundraising rounds for Klaytn; raised 90M USD in total• Performed due diligence on potential tech partners

Contributed to the Klaytn position paper as main author. The paper details design and concept of the Klaytn blockchain.

• Developed a new decentralized PKI system, bootstrapping its security onto an existing blockchain (e.g. Bitcoin, Ethereum)• Developed an Android application for network censorship circumvention (https://geph.io); tested and deployed the public alpha version in countries with high Internet censorship; 150+ active users• Wrote reports and proposals for an ML-based IDS development project funded by the Royal Bank of Canada (RBC)• Building blockchain-agnostic decentralized… Show more • Developed a new decentralized PKI system, bootstrapping its security onto an existing blockchain (e.g. Bitcoin, Ethereum)• Developed an Android application for network censorship circumvention (https://geph.io); tested and deployed the public alpha version in countries with high Internet censorship; 150+ active users• Wrote reports and proposals for an ML-based IDS development project funded by the Royal Bank of Canada (RBC)• Building blockchain-agnostic decentralized applications that can leverage blockchain properties; currently developing a secure software update system using blockchain technologies, which allows users to verify software update history with thin clients Show less

• Developed a high performance, reactive, scalable event processing engine for network security analysis (Java and Scala)• The engine is devised to detect APT attacks by finding botnets and Command and Control (C2 or C&C) communication channels and provide analysis metrics through RESTful APIs• Used the Akka framework to enable the engine to asynchronously handle a large volume of network events (9K events/sec per instance processing rate); by integrating with Apache Ignite, the… Show more • Developed a high performance, reactive, scalable event processing engine for network security analysis (Java and Scala)• The engine is devised to detect APT attacks by finding botnets and Command and Control (C2 or C&C) communication channels and provide analysis metrics through RESTful APIs• Used the Akka framework to enable the engine to asynchronously handle a large volume of network events (9K events/sec per instance processing rate); by integrating with Apache Ignite, the engine off-loads memory requirement and focuses on analysis with small memory footprint• Profiled and correlated observed events to create general metrics indicating whether the examined hosts or destinations are related to adversaries and the part of C2 channels • The engine is integrated with a commercial security product, Connectome - distributed by Naru Inc., Seoul, South Korea; Connectome has been sold to government organizations and companies including Republic of Korea Army, KT (Korea Telecom), and Coupang, and proven its worth by successfully detecting botnets with high accuracy Show less

• Developed ‘ParkingShare’ Android client with full features in 4 months (500K+ downloads)• Informed parking availability and allowed users to share their driveways for profits (AirBnB for parking)• Displayed server data on a map as overlays and provided tools for users to search, register, and rent parking lots

• Managed a team of eight developers and worked on multiple software development projects for military• Developed a server program for a USB storage control system; managed a list of authorized USB storage and a list of authorized personnel who can use registered storage; provided relevant APIs and a web console• Integrated the server with the client software to detect the misuse of unauthorized USB storage and disable the computer which the media was mounted; deployed the… Show more • Managed a team of eight developers and worked on multiple software development projects for military• Developed a server program for a USB storage control system; managed a list of authorized USB storage and a list of authorized personnel who can use registered storage; provided relevant APIs and a web console• Integrated the server with the client software to detect the misuse of unauthorized USB storage and disable the computer which the media was mounted; deployed the server live in 2013 for 200,000+ military employees Show less