Remote Blockchain Security Engineer — Chain Evaluation

CryptoproNetwork; Northern (KY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

National impact

Collaborative environment

Flexible work culture

Job summary

CertiK is seeking a Blockchain Security Expert to oversee security-related services, combining cybersecurity with blockchain expertise. The role involves security consulting, reviews, audits, verification of smart contracts, and penetration testing, working with the security team to deliver top-notch offerings.

You will engage with clients, help expand security-related products, and monitor emerging security trends in the blockchain space, contributing to a leading-edge security platform.

Qualifications

• Strong written and spoken English communication skills.
• High diligence and strong attention to detail, especially in multi-step testing and long-running experiments.
• Solid understanding of blockchain architecture and node internals (e.g., Cosmos SDK / CometBFT, Go-Ethereum (Geth) internals, and Hyperledger Fabric / Besu)

Responsibilities

• Conduct in-depth security evaluations on blockchain nodes, validators, consensus mechanisms, mempool behavior, networking layers, and chain modules.
• Review and analyze blockchain frameworks such as Cosmos SDK, CometBFT, Geth, Hyperledger, and other L1/L2/L3 infrastructures.
• Identify security issues related to consensus safety, chain halting, permission models flaws, block production vulnerabilities.
• Implement and run custom scripts and test scenarios to simulate real-world validator/network behaviors, chain stress conditions, and edge cases.

Skills

Security

Python

Web3

Infrastructure

Remote

Job description

CertiK is seeking a Blockchain Security Expert to oversee security-related services, combining cybersecurity with blockchain expertise. The role involves security consulting, reviews, audits, verification of smart contracts, and penetration testing, working with the security team to deliver top-notch offerings.

You will engage with clients, help expand security-related products, and monitor emerging security trends in the blockchain space, contributing to a leading-edge security platform.