Jonathan Mukai-heidt
Observability Lead Engineer at Stealth startup
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolJonathan Mukai-heidt is an Observability Lead Engineer in New York with 14 years of software engineering experience building reliable, data-driven systems. He combines hands-on backend and database expertise—demonstrated by performance-focused contributions to the high-profile Chainlink oracle project—with leadership experience as a CTO and founding partner across startups. His work emphasizes pragmatic optimization of data retrieval and migration safety, reducing query latency and database round trips in production services. Comfortable mentoring engineers and shaping technical strategy, he pairs a humanities background in cultural anthropology with deep technical fluency, which helps him translate complex system behavior into actionable observability and operational improvements.
14 years of coding experience
8 years of employment as a software developer
Bachelor of Arts (BA), Cultural Anthropology, Bachelor of Arts (BA), Cultural Anthropology at Columbia University in the City of New York
Japanese
Github Skills (10)
chainlink10
postgresql10
sql10
database-optimization10
typeorm9
golang9
go9
blockchain7
oracle6
oracles6
Programming languages (7)
Github contributions (5)
smartcontractkit/chainlink
Mar 2020 - Jul 2020
node of the decentralized oracle network, bridging on and off-chain computation
Role in this project:
Back-end & Database Engineer
Back-end & Database EngineerContributions:1 review, 57 commits, 11 PRs in 4 months
Contributions summary:Jonathan primarily focused on optimizing database queries and improving the efficiency of job run searches within the Chainlink explorer application. Their work included creating a GIN index to speed up SQL queries and refactoring search functionalities to include the total count and reduce database round trips. Additionally, the user updated and refined database migration scripts, and made changes to the core version and SHA details to record the node operator information. These changes reflect a strong focus on performance and data retrieval efficiency.
golangcomputationethereumblockchaindecentralized
johnnymugs/rails
May 2015 - Dec 2017
Contributions:2 pushes, 5 branches in 2 years 6 months
ruby-on-railsrailsruby-onruby
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