Sanghyun Park
Software/AI Engineer · CTO · Author · Translator
As a CTO I lead the engineering organization while still working hands-on as a software and AI engineer. I've been writing and translating books since 2003.
- Built software, and led the teams building it, across SaaS, defense, manufacturing, telecom and cybersecurity
- Develops in C/C++, C#, Java/Kotlin, Python and TypeScript, and the frameworks around them
- Experience across public and private cloud, containers, serverless and embedded systems
- Wrote or translated 14 books on software development, and published many articles
Experience
2026 — Present
@i-ESGChief Technology Officer
Leading the product and technology organization
Enterprise ESG SaaS
- ESG data management
- Carbon tracking system
- Supply chain management
AI ESG products
- FactTrace AI
2021 — 2026
@ATOMSSenior Software Engineer
Full-stack development of Otter, ATOMS Food's multi-channel, real-time order-processing SaaS. Designed the payment, table-ordering, and POS integration layers; migrated acquired POS systems; supported APAC and LATAM localization
2011 — 2021
@Hanwha Systems(Previously, Samsung Thales · Hanwha Thales)
2021
Principal Software Engineer
Architected ZDefense, a network-based malware detection system. Built a Zeek-based PE file-carving server cluster, sandbox and threat-intelligence analysis systems, and a distributed file-reputation cache on Apache Ignite
2020
Principal Software Engineer
Architected SIEM+, a security monitoring system. Built a Kafka/ELK data pipeline handling 1 TB per day, unsupervised anomaly detection with FBProphet, trend forecasting, and a search portal
2019
Staff Software Engineer
Cybersecurity business strategy planning (M&A, R&D)
2017 — 2018
Staff Software Engineer
Architected a cyber situational awareness system; built an ANTLR-based IDL stub compiler, a C++/C#/Java/Python messaging core, and attack-graph-based early threat warning. Developed a data-leak detection system with ML-based behavior prediction for the Agency for Defense Development
2011 — 2016
Senior Software Engineer
Led software development for the Air Defense Command, Control and Alert (ADC2A) weapon system. Designed the DDS-based system software architecture and implemented the Tactical Situation Display and the Data Link Processor
2005 — 2011
@NewGrid TechnologySoftware Engineer
Developed a signaling gateway, a trunk gateway and an SNMP v2c agent
2003 — 2005
@AIM SystemsSoftware Engineer
Developed a CORBA 2.3 MES engine on TAO, an IIOP-compatible library in C#, and an MES client in Java
2002 — 2003
@HANMI DATASoftware Engineer
Developed an ActiveX-based metasearch engine client, an ASP3/VB6 ORM framework, and a search engine portal