Jeiwan

Jeiwan

Here to save your project from a collapse.

@jeiwan

55

Spearbit

sr

Public earnings

$87.5

628th


Public findings

3


Worked with

Balancer
Marginal
Optimism
Velodrome
cccz
Mario Poneder
phaze
HickupHH3
Optimum
Denis Miličević

Biography

Biography

After spending many years working as a web developer and studying blockchain technologies in his free time, Jeiwan started his full-time smart contracts security journey in September 2022. Since then, he has participated in more than 50 auditing contests on Code4rena and Sherlock, where he achieved multiple Top 5 places while competing with the best auditors in the field.

Jeiwan is a member of Spearbit, where he performs security reviews of smart contracts for top DeFi companies.

Jeiwan is the author of Uniswap V3 Development Book. Thanks to his deep knowledge of Uniswap, Jeiwan specializes in projects that integrate or extend Uniswap, as well as any other AMM.

Top competitions

View all
Contest
Position
Date
Payout
safe-extensions

safe-extensions

34

/ 228

May 2024$88

Private reviews

View all
Engagement
Project title
Timeframe
Researchers
Velodrome

Velodrome

Velodrome Finance

Nov 2023 - Dec 2023

+1
Alex The Entreprenerd
Optimum
Denis Miličević
Optimism

Optimism

Optimism Cycle 19 Security Review

Jan 2024 - Feb 2024

cccz
Jeiwan
Christos Pap
Marginal

Marginal

marginal-v1-lbp

Aug 2024 - Sep 2024

Jeiwan
defsec
Balancer

Balancer

balancer-monorepo

Sep 2024 - Oct 2024

+2
Jeiwan
HickupHH3
Mario Poneder

Security portfolio

Title
Description
VelodromeVelodrome Finance is a next-generation AMM that combines the best of Curve, Convex and Uniswap, designed to serve as Optimism's central liquidity hub.
2nd place in QuickSwap and StellaSwap contestAlgebra is an innovative DEX engine with concentrated liquidity, dynamic fees, farmings and other features. The work of AMM is based on the most common approach with an invariant described by a constant product function ( x*y = k like) but with significant changes.
1st place in Papr contestPapr facilitates NFT-backed loans. Borrowers deposit allowlisted NFT collateral and mint papr, which can then be exchanged on Uniswap for some other asset.
2nd place in Ajna contestAjna is a peer to peer, oracleless, permissionless lending protocol with no governance, accepting both fungible and non fungible tokens as collateral.
1st place in Optimism contestBedrock is the cheapest, fastest, and most advanced rollup architecture. Ever. Contest focus is changes made since the previous Bedrock contest.
2nd place in Angle Protocol contestAn invitational contest on Code4rena.
3rd place in Axelar contestAxelar is a decentralized interoperability network connecting all blockchains, assets and apps through a universal set of protocols and APIs.
TimeswapAMM-based money market protocol
Stella DeFiLeveraged lending protocol