Background and education
Offchain states that Kalodner attended Princeton University before founding Arbitrum. Attendance is not reported here as a completed degree.
How the journey developed
Kalodner’s background includes research in cryptocurrency systems and privacy. He co-founded Offchain Labs with Ed Felten and Steven Goldfeder after the research that led to Arbitrum.
Contribution to crypto
Offchain identifies him as co-founder and chief technology officer. His contribution emphasizes the engineering of blockchain scaling infrastructure and the systems needed to support applications.
Why the work matters
Moving a protocol from paper to production requires handling more than its ideal execution path. Software releases, outages, verification and upgrade controls all affect users. Kalodner’s career helps explain that engineering layer, while a live system’s current documentation remains the source for specific operational claims.
Sources and further reading
Profile reviewed September 8, 2026. Historical roles are identified as such. Education is included only where supported by the sources; an unverified qualification is not assumed.