HomeCandidateMarcus – Application Security Engineer

Marcus – Application Security Engineer

Marcus – Application Security Engineer

Title :

Marcus – Application Security Engineer

Salary :

$150,000

Location :

USA

Experience :

9 years

Summary :

AppSec engineer securing browser-based and mobile wallets, with deep experience in UX-based phishing defenses and signer authorisation flows.

Skills:

  • WalletConnect & EIP-712 Flow Reviews

  • Mobile Auth & Session Persistence

  • Frontend Phishing Pattern Defense

  • Approval UX Testing

Experience:

  • Led security reviews of Web3 wallet UIs and signing modals

  • Hardened multi-device auth for wallet recovery and fallback

Achievements:

  • Prevented phishing-based drainer exploit pre-launch

  • Developed hardened signer approval UX for >1M user base

  • Trained product team on frontend security red flags

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