ethan

ethan

Bugs hate to see me coming

@0xdarklinear

79

Spearbit

asr

resident

Public earnings

$12,472.89

185th


Public findings

15


Achievements


Skillset

NFTsOracleLendingWeb2DeFiAMMsSolidityHooksStablecoinsWalletsRWAYield FarmStaking

Worked with

Pendle Finance
HickupHH3
RustyRabbit
Saw-mon and Natalie

Biography

I've been building on Ethereum since 2016, including engineering at MakerDAO from 2018-2021 (eventually becoming the Head of the JavaScript team) and two years dedicated to security research. In that time, I've conducted reviews for some of the biggest projects in the space, both independently and with Spearbit/Cantina.

As a researcher, I excel with stablecoins, AMMs, ERC-4626 vaults, and lending protocols.

I'm great at efficiently digesting complex code. And having been an active participant in the growth of DeFi from its earliest days, I have an intuitive understanding of the risks and vulnerabilities that any type of protocol needs to be secured against.


Testimonials from solo review clients (conducted through my LLC, Darklinear Solutions):

"Among the numerous auditors we've worked with over the years, Darklinear stands out as exceptional. Ethan took the time to really understand what we were trying to do and tailored his auditing approach specifically to our needs. His questions were insightful, and his final report made it clear that he had deeply grappled with the nuances of our system. We feel much better about our contracts having worked with Ethan, and it’s easy for us to recommend Darklinear Solutions to anybody looking for a smart contract audit."

— Josh Levine and Kenton Prescott, co-founders of Rumpel and Sense Finance

"Darklinear has been a crucial security partner during the launch of the Sky (formerly MakerDAO) Endgame roadmap, providing frontend code audits and recommendations. We appreciated their ability to understand the context quickly, and take on a holistic perspective & proactive attitude. We're looking forward to continuing the collaboration over the years to come."

— 0xdeniz, Tech Lead at Sky Ecosystem

Top competitions

View all
Contest
Position
Date
Payout
safe-extensions

safe-extensions

4

/ 59

May 2024$6,385
core-and-erc1155a

core-and-erc1155a

10

/ 50

November 2023$2,114
Smart-contracts

Smart-contracts

15

/ 65

March 2024$1,247
YOLO Games

YOLO Games

7

/ 29

May 2024$661
incentive-contracts

incentive-contracts

23

/ 41

January 2024$322

Private reviews

View all
Engagement
Project title
Timeframe
Researchers
Pendle Finance

Pendle Finance

Pendle

Mar 2025 - Jul 2025

+1
RustyRabbit
HickupHH3
Saw-mon and Natalie

Security portfolio

Title
Description
Sky: Phases Zero and One & HelipadAudit and pen test of Sky frontend interfaces and TypeScript libraries ahead of the MakerDAO rebrand
Rumpel — Passive Point SellerAllows users to automatically sell pTokens as they accrue
Rumpel Wallet and Vault UpdateUpdates to the Point Tokenization Vault, plus a new Rumpel Safe account
Rumpel — Point Tokenization VaultTurns offchain points into liquid assets on mainnet
View my full portfolioAvailable on my website