CriticalRiver Inc. logo

Blockchain Security Engineer - Reentrancy, overflow attacks

6 - 8 years

0 Lacs

vijayawada andhra pradesh india

Posted:1 day ago| Platform: Linkedin logo

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Skills Required

blockchain security technology consulting salesforce netsuite oracle integration analytics drive automation ai ml iot manufacturing collaboration auditing cybersecurity audits network management owasp testing https audit azure vault devops development tuning architecture coding iam communication certifications devsecops compliance cutting collaborative

Work Mode

On-site

Job Type

Full Time

Job Description

CriticalRiver Inc.


Our expertise spans cloud, automation, and next-generation technologies such as AI/ML, IoT, RPA, and Industry 4.0. We serve a diverse range of industries, including

Energy & Utilities, High Tech, Financial Services, Manufacturing, and Not-for-Profit.


At CriticalRiver, we are committed to delivering innovative, end-to-end solutions that empower our clients to achieve sustainable business growth while fostering a culture of collaboration, innovation, and continuous learning.


Role Summary

Blockchain Security Engineer


Key Responsibilities

  • Conduct

    smart contract audits

    , focusing on vulnerabilities such as

    reentrancy, overflow/underflow attacks

    , and other common security flaws.
  • Ensure

    blockchain network security

    , including

    key management, consensus mechanisms, and on-chain privacy

    .
  • Evaluate

    dApp security

    and recommend mitigation strategies.
  • Apply

    OWASP Top 10

    guidelines and perform security testing using

    SAST/DAST tools

    .
  • Implement secure protocols including

    HTTPS, TLS, HSTS, and CSP

    .
  • Manage and audit

    Key Management Systems

    like Azure Key Vault and HashiCorp Vault.
  • Enforce

    Identity & Access Management (IAM)

    and

    Role-Based Access Control (RBAC)

    across blockchain applications.
  • Collaborate with developers and DevOps teams to integrate security best practices into development workflows.


Required Skills & Competencies

  • Strong experience in

    smart contract auditing

    and

    blockchain security

    .
  • Hands-on knowledge of

    key management, consensus tuning, and network security

    .
  • Familiarity with

    dApp architecture and on-chain privacy techniques

    .
  • Expertise in

    security testing tools (SAST/DAST)

    and secure coding practices.
  • Proficiency in

    HTTPS, TLS, HSTS, CSP

    , and other web security standards.
  • Experience with

    Azure Key Vault, HashiCorp Vault

    , or similar KMS solutions.
  • Knowledge of

    IAM and RBAC implementation

    .
  • Strong analytical, problem-solving, and communication skills.


Education & Experience

  • Bachelor’s in Computer Science, Cybersecurity, or a related field.

  • 6-8 years of experience

    in smart contract auditing, blockchain security, or related cybersecurity roles.
  • Relevant certifications (CEH, OSCP, blockchain security certifications) are a plus.


Preferred Experience

  • Exposure to

    DeFi protocols, decentralized applications (dApps)

    , and enterprise blockchain frameworks.
  • Understanding of

    DevSecOps practices for blockchain

    .
  • Experience with security compliance and regulatory standards for blockchain deployments.


Benefits & Work Environment

  • Opportunity to work on

    cutting-edge blockchain projects

    .
  • Exposure to both enterprise and government blockchain initiatives.
  • Collaborative and innovative work culture with

    professional growth opportunities

    .

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