Sigrid Jin 🌈
About
I'm interested in everything that makes things actually work, software and the startup scene most of all. I write about what I learn on Medium. Having previously studied international relations and mathematics, I also like raising the ethical questions technology deserves. That habit once landed me in The New York Times.
Sigrid Jin is how I go by, and my legal name is Jin Hyung Park. I live between Seoul 🇰🇷 and Vancouver 🇨🇦, and speak Korean, English, and Chinese (Mandarin).
Work
Sionic AI Software Engineer
Sep 2023 – May 2026
Joined as the fifth member, right after founding and before the first capital raise. Built and operated an AI image-generation inference service across GCP and AWS, worked on RAG systems with FastAPI and vector-database optimization (including Faiss acceleration research with MetisX), and ran DevOps/MLOps across EKS, GKE, and on-premise Kubernetes with ArgoCD/GoCD. Wrote widely-read pieces on BGE-M3 and ModernBERT, and a PyCon Korea 2024 tutorial that helped land two major banking contracts.
DSRV Software Engineer
Mar 2022 – Aug 2023
From developer relations to backend engineering at a blockchain infrastructure company. Built the custody service's admin frontend (Next.js) and Golang authentication server to VASP/travel-rule and ISMS standards, an Ethereum NFT ETL/API pipeline (Golang, PySpark, Airflow, gRPC), and Sonar, a data explorer for the Osmosis chain. Earlier, wrote developer docs for All That Node and WELLDONE Studio with smart-contract examples in Rust and Solidity.
✈️ Republic of Korea Air Force Financial & Personnel Support Aug 2020 – Mar 2022
Mandatory military service at Seosan Air Base: squadron finance and personnel administration, supporting flight operations jointly with the US Air Force; the squadron was nominated Outstanding Squadron in 2021.
NAVER Corp Technical Research Assistant Intern
Jul 2019 – Jan 2020
At Connect Foundation, NAVER's software-education nonprofit: helped design the Boostcamp 2019 full-stack curriculum, AI courses with the Clova AI team, and AI education for secondary students on LINE Entry.
The Economist Intelligence Unit Research Assistant Intern
Mar 2019 – Jun 2019
Network moderator for The Economist Corporate Network in South Korea, moderating executive events and delivering custom briefings.
teamw.e Technical Research Assistant Intern
Oct 2018 – Jan 2019
FinTech consulting research on Ethereum and Hyperledger Fabric, token economics, NFT ecosystems, and STO valuations.
Chain Partners Technical Research Assistant Intern
May 2018 – Sep 2018
Blockchain research for CoinSight, Korea's largest blockchain media channel: EOS ecosystem and DeFi research, EN–KR technical translation, and supporting KBW/ABF 2018.
Volunteering
OpenAI Codex Community Ambassador
Community ambassador for the Codex developer community: meetups, talks, and hands-on education for AI-native engineering.
Anthropic Claude Community Ambassador
Community ambassador for the Claude developer community: workshops and Claude Code meetups in Seoul.
Instruct.KR Organizer
An open community for Korean LLM instruction-tuning and evaluation research.
Education
University of British Columbia B.A., Arts
2025 –
Studying between Seoul, the B.C. interior, and Vancouver while working remotely.
KAIST Certificate, Entrepreneurship
2014 – 2016
Entrepreneurship studies certificate program.