RemoteLeaf Logo
Log in Sign up

Blockchain Security Expert - Chain Security Evaluation Track

6 months ago
United States
Full-time
Senior
Security Engineer
Cybersecurity
Bash Blockchain Docker Go Penetration Testing Python
Apply Now
CertiK

CertiK

$152M raised
View All Jobs 19

Description

  • Conduct in-depth security evaluations of blockchain nodes, validators, consensus mechanisms, mempool behavior, networking layers, and chain modules.
  • Review and analyze blockchain frameworks such as Cosmos SDK, CometBFT, Go-Ethereum (Geth), Hyperledger Fabric/Besu, and other L1/L2/L3 infrastructures.
  • Identify and document security issues related to consensus safety, chain halting, permission model flaws, and block production vulnerabilities.
  • Implement, run, and maintain custom scripts and test scenarios to simulate validator/network behaviors, chain stress conditions, and edge cases.
  • Perform security consulting, manual audits, verification of smart contracts and blockchains, and penetration testing as part of CertiK’s security offerings.
  • Collaborate with the security team to deliver and expand CertiK’s security products and services.
  • Engage directly with clients to communicate findings, support remediation, and scope security engagements.
  • Monitor emerging blockchain security problems and industry trends to inform assessments and product improvements.

Requirements

  • Authorization to work in the United States and ability to work remotely (US-based role).
  • 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 (examples: Cosmos SDK/CometBFT, Go-Ethereum/Geth, Hyperledger Fabric/Besu).
  • Strong scripting and automation skills with Python or Bash.
  • Familiarity with Docker and containerized testing environments.
  • Prior experience in manual Web3 security auditing is preferred but not required.
  • Self-starter comfortable working in a startup environment, wearing multiple hats, and collaborating with cross-functional teams and clients.

Benefits

  • Target US salary range $120,000–$180,000 (exact offer determined by skills and experience).
  • Medical, vision, and dental insurance.
  • 401(k) plan with company matching.
  • Life and accidental death and dismemberment (AD&D) insurance, HSA (with high-deductible plan), and FSA.
  • Flexible paid time off and holidays and a flexible remote work environment.
  • Opportunity to collaborate with industry-leading security researchers and technologists and to shape conversations in blockchain security.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

Chainguard

Security Engineer

Chainguard 51-250 Internet Software & Services

Chainguard is hiring a Security Engineer for its Cyber Resiliency team to strengthen company-wide information security, support compliance, and enable low-friction protection against cyber threats.

United States Full-time Mid Level Security Engineer
$105k-$123k
Go Linux macOS Python Shell Scripting
23 hours, 42 minutes ago
GXA

Security Engineer

GXA 11-50 Internet Software & Services

GXA is hiring a hands-on Security Engineer to operate and improve its gShield security services, support client environments, and lead technical incident response and remediation.

Sri Lanka South Africa Pakistan Contract Senior Security Engineer
Active Directory AWS Azure Cybersecurity DHCP DNS PowerShell SIEM TCP/IP Windows Server
23 hours, 42 minutes ago
DoorDash

Senior Detection Engineer

DoorDash 10K-50K Air Freight & Logistics

DoorDash is hiring a Senior Detection Engineer to help build and operate detection engineering for its global cyber defense function across DoorDash, Deliveroo, and Wolt.

United States Full-time Senior Security Engineer Software Engineer
$160k-$235k
Go Python SIEM Snowflake SQL
2 days, 22 hours ago
Redox

Staff Security Engineer

Redox 51-250 Internet Software & Services

Redox is hiring a Staff Security Engineer to own cloud-native and application security for its remote healthcare data exchange platform, with a focus on hardening systems and driving secure-by-default engineering practices.

United States Full-time Lead Security Engineer
$190k-$200k
Argo CD AWS CI/CD CrowdStrike Docker GitHub Actions Go HashiCorp Vault Helm Kafka Kubernetes LLM Node.js PostgreSQL Python Redis Terraform TypeScript
2 days, 23 hours ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers