Ed Felten
Founder at Offchain Labs, Inc.
New Jersey, United States
Summary
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RockstarEd Felten is Co‑founder and Chief Scientist at Offchain Labs and Professor Emeritus of Computer Science and Public Affairs at Princeton. With 13 years of industry experience, he blends academic rigor and startup execution to advance scalable blockchain infrastructure. He does hands‑on backend engineering, notably contributing Go implementations and new opcodes to the Arbitrum Classic AVM to support ethhash2 and on‑chain challenge mechanics. That mix of low‑level virtual machine work and policy-aware systems research helps him translate cryptographic ideas into production‑grade, privacy‑forward decentralized applications. Known for moving concepts from papers into running systems, he focuses on making complex consensus and verification primitives practical for real-world use.
13 years of coding experience
Github Skills (13)
algorithm10
data-structures10
algorithms10
arb10
go10
opcodes10
datastructures10
data-structure10
opcode10
datastructure10
blockchain9
testing9
ethereum9
Programming languages (6)
Github contributions (5)
OffchainLabs/arbitrum-classic
May 2019 - Jul 2022
Powers fast, private, decentralized applications
Role in this project:
Back-end Developer
Back-end DeveloperContributions:168 reviews, 732 commits, 249 PRs in 3 years 2 months
Contributions summary:Ed primarily contributed to implementing and testing the functionality of an AVM (Arbitrum Virtual Machine) in Go. Their work involved adding new opcodes and implementing their behavior, along with defining supporting structures and interfaces, demonstrating a deep understanding of the low-level workings of the AVM. The user's contributions also extended to the core of the AVM, with changes to instruction names, stack operations, and other low-level components. Overall, the user's work focused on building and improving the AVM's core functionality with an emphasis on supporting new features such as an ethhash2 and supporting challenge functionality.
ipfsethereump2ppowersblockchain
OffchainLabs/arb-os
Mar 2020 - Jul 2022
ArbOS operating system, to run at Layer 2 on Arbitrum chains. Also a compiler for Mini, the language in which ArbOS is written.
Contributions:359 reviews, 2931 commits, 471 PRs in 2 years 4 months
operating-systemchainscompilerlayer-2operating
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