Sujith S

I’m Sujith, a security researcher at Spearbit (Cantina) and trusted CISO/Security Advisor for protocols including Superform and LI.FI. With over a decade in Web3 engineering and 3 years specializing in security research, I’ve partnered with 60+ protocols spanning consensus clients, cross-chain bridges, and complex DeFi systems.

As part of Cantina’s incident response team, I bring real-time experience handling live Web3 exploits and crisis recovery — from pre-deployment threat modeling to post-incident forensics and remediation planning.

I’ve helped secure some of the most critical ecosystems in crypto: Sonic, Berachain, Optimism Interop, LayerZero, Monad, zkSync, Blast, Relay Protocol, LI.FI, and many others. Most of this work remains private, but my ability to find high-impact vulnerabilities consistently shows up in open competition:

• 🩸 First Blood at Paradigm CTF 2023 (enterprise blockchains), 6th overall
• 🥇 1st Place at Surge CTF 2023 – broke Socket protocol’s data layer, $27,000 prize
• 🥈 2nd Place at Remedy CTF 2025 – solved four problems under pressure
• 🏆 1st Place at the Cork Protocol audit contest (Cantina)

Before Spearbit, I was a founding engineer at Superform ($180M+ TVL) and Streams, giving me the rare perspective of both a builder shipping at scale and a security lead defending production code under attack surfaces measured in billions.

I also contribute to the future of secure infrastructure:

• ✍️ Co-author of EIP-6170, defining the bridge interface standard
• 🔧 Contributor to Uniswap MMA (multi-message aggregation) and Pigeon (cross-chain test suite)
• 🛡️ Reported 6+ vulnerabilities to Hyperlane and multiple bridge protocols as a part of my bug bounty journey

Whether it’s Solidity, Rust, Go, or protocol architecture, I combine builder intuition with an adversarial mindset. My mission is simple: to ensure your protocol doesn’t just pass an audit, but is battle-tested to withstand nation-state-level adversaries and real-world exploits.

Explore my portfolio: sujithsomraaj.xyz/security-work