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Roman – Protocol Security Engineer (L1 Blockchains)

Roman – Protocol Security Engineer (L1 Blockchains)

Title :

Roman – Protocol Security Engineer (L1 Blockchains)

Salary :

$165,000

Location :

Ukraine

Experience :

8 years

Summary :

Engineer securing L1 consensus and state transition logic with deep experience in custom proof systems and validator lifecycle security.

Skills:

  • Consensus Algorithm Auditing

  • State Transition Verification

  • Chain Upgrade Security

  • Fork Logic Simulation

Experience:

  • Audited consensus modules for Cosmos and custom EVM chains

  • Simulated validator misbehavior under low-participation conditions

Achievements:

  • Flagged consensus split bug before L1 mainnet

  • Designed upgrade fallback system to prevent network halt

  • Led simulation of cross-chain validator incentive attacks

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