J4X

J4X

@J4X98

100

Spearbit

sr

Public earnings

$159,464.9

9th


Public findings

103


Achievements


Worked with

Berachain
Drips
deadrosesxyz
Sujith Somraaj
xiaoming90
0xicingdeath

Biography

Intro

I'm a smart contract security researcher with a background in computer science. I have 2 years of experience in the smart contract security field, initially from an academic and CTF perspective and later as a smart contract auditor. Before auditing smart contracts, I studied Information Security (Cybersecurity) and worked as a penetration tester.

During my first year in smart contract security, I won six security contests, four top-three placements, and four more top-10 placements. I'm highly interested in decentralized finance, as I've always been interested in traditional finance. I am proficient in auditing code in Solidity, Solana, Cosmos, Cairo, and Substrate.

I am currently working as a Lead Security Researcher at Thesis Defense and as a Security Researcher at Spearbit. I also compete in contests on Code4rena and Cantina.

Top Contest performances

PlatformContestLanguagePositionPayoutReport
CantinaCentrifugeRust / Substrate🥇/231$70,209.75Private
CantinaWormholeSolidity🥇/13RedactedPrivate
Hats FinanceMetromRust / Backend🥇/X$28,000.00Private
C4HydraDxRust / Substrate🥇/27$23,597.20Report
CantinaGrassRust / Solana🥇/197$6,355.65Private
CantinaDecentSolidity🥇/193$1,250.00Private
CantinaMorphoSolidity🥉/22$17,919.95Private
SherlockAndromedaRust / Cosmos🥉/122$12,998.29Report
CantinaYOLO GamesSolidity🥉/250$2,238.22Private
C4ENSSolidity🥉/54$1,840.73Report
CantinaOptimismSolidity5/227$4,326.86Report
CantinaRoninSolidity6/61$16,809.33Private
CantinaTensorRust / Solana6/256$9,529.84Private
C4CentrifugeSolidity6/84$1,663.90Report
CantinaOpalSolidity6/42$1,780.65Private

Private Audits

DateAgencyNameLanguageProtocol typeReport
04/2024Thesis DefenseAcreSolidityGnosis SafeReport
04/2024Thesis DefenseMezoSolidity*Report
05/2024Thesis DefenseStars ArenaSolidity*Private
07/2024SpearbitDripsSolidityReward distributionReport
09/2024SpearbitBerachainSolidityBalancer forkPrivate
10/2024ZenithJupiterSolana / RustSmart walletPrivate
10/2024Zenith4realSolana / RustStakingReport
10/2024ZenithJupiter #2Solana / RustSmart walletPrivate
11/2024BlackthornGMXSolana / RustAMMReport
11/2024ZenithJupiter #3Solana / RustSmart walletPrivate
12/2024SpearbitBlendySolana / RustVaultPrivate
12/2024ZenithAutonomous FinanceSolana / RustVaultPrivate
12/2024SpearbitBlendy #2Solana / RustVaultPrivate
01/2025PlainshiftEkuboCairoAMMPrivate
02/2025ZenithPaladinSolana / RustStaking / Governance / RewardsPrivate
03/2025ZenithDripsterSolana / RustLaunchpadReport
03/2025ZenithOrderlySolana / RustBridgePrivate
03/2025Zenith1InchSolana / RustOrderbook AMMPrivate
03/2025ZenithMeteoraSolana / RustBonding CurvePrivate
04/2025ZenithEgoSolana / RustLaunchpadPrivate
04/2025ZenithBridgeSolana / RustPaymentPrivate
04/2025Bail SecurityToken MillSolana / RustLaunchpadPrivate
04/2025ZenithMeteora #2Solana / RustBonding CurvePrivate
04/2025SpearbitBerachainNode / GoBeaconkitPrivate
05/2025ZenithMeteoraSolana / RustAMMPrivate

Work experience

Name of the conceptAdditional Info
ERC StandardsERC20, ERC721, ERC4626, ERC4337
Gnosis SafesreNFT, Redacted, Optimism
LendingMorpho, Wildcat Finance, Opal, Balancer
AMMUniswap, Omnipool (Opal, HydraDx), Custom (Salty.io), compound
ProxiesTransparent, UUPS, Diamond
StakingEthena, Salty.io, Redacted
GovernanceENS,Ethena Labs, Opal, Salty.io
Cross ChainWormhole, Axelar, Threshold tBTC bridge, Custom implementations

Top competitions

View all
Contest
Position
Date
Payout
Centrifuge

Centrifuge

1

/ 245

August 2024$70,210
metamorpho-and-periphery

metamorpho-and-periphery

2

/ 242

November 2023$12,357
tensor-monorepo

tensor-monorepo

6

/ 270

October 2024$9,030
grass

grass

1

/ 204

June 2024$6,356
safe-extensions

safe-extensions

5

/ 228

May 2024$4,327

Private reviews

View all
Engagement
Project title
Timeframe
Researchers
Drips

Drips

drips-monorepo

Jul 2024 - Jul 2024

Sujith Somraaj
J4X
deadrosesxyz
Berachain

Berachain

Bera Bex

Sep 2024 - Oct 2024

J4X
xiaoming90
0xicingdeath