Lead Smart Contracts Auditor At Onhires

Job Description

About company

We are a leading security consulting company with an essential focus on blockchain security and a community of like-minded people who are passionate about a common goal. Our mission is to make Web 3.0 a safer place. We are a fast-developing company in an innovative sphere. As the cyber market is growing rapidly, we have a strong intention to take its significant share during the next 3 years. A strong tech department will play a crucial part in it.


  • Conduct comprehensive audits of smart contracts to identify vulnerabilities, security flaws, and potential risks.
  • Assess smart contracts’ codebase, logic, and architecture to ensure compliance with industry standards and best practices.
  • Implement tools and methodologies to automate and streamline the auditing process.
  • Improve quality to avoid potential risks.
  • Provide contracts unit testing;
  • Write clear and concise reports and action steps for developers;
  • Interact with developers and key stakeholders when identifying and handling security issues.
Required profile for job ad : Lead Smart Contracts AuditorRequirements

  • Proven experience in smart contract auditing, blockchain security, or decentralized applications (dApps) of 2+ years.
  • Demonstrated leadership skills with experience in managing and mentoring technical teams.
  • Proficient in programming languages commonly used in smart contract development (e.g., Solidity, Move) and familiarity with various blockchain platforms (e.g., Ethereum, Binance Smart Chain, etc.).
  • Strong understanding of cryptographic principles, token standards (e.g., ERC-20, ERC-721), and blockchain consensus mechanisms.
  • Knowledge of security frameworks and best practices, including OWASP Top 10 for Smart Contracts.
  • Excellent analytical and problem-solving abilities, with a keen eye for detail.
  • Experience with unit testing, documentation, design reviews, and code review.
  • Effective communication and presentation skills can explain complex technical concepts to non-technical stakeholders.

It would be a plus:

  • Security certifications such as CISSP, CEH, or OSCP;
  • Experience with security tools and techniques such as fuzz testing and static/dynamic analysis for blockchain networks;
  • Рrevious experience working with DeFi projects;
  • Previous experience in Red Teams or Pentest teams;
  • Experience in writing automation tests;
  • Being passionate about the crypto space.

Perks & Benefits

  • Personal and professional development as a specialist;
  • Development of innovative, future-oriented blockchain products;
  • Flexible working hours;
  • Office (Lisbon)/remote work;
  • Paid vacation and sick leaves;
  • Budget for conferences, seminars, and training that will help you grow as a professional.
Job criteria for job ad : Lead Smart Contracts Auditor
Job category :
IT, new technologies
Industries :
IT, software engineering, Internet
Employment type :
Permanent contract – Fixed-term contract
Region :
Ashanti – Brong Ahafo – Central – Eastern – Greater Accra – Northern – Upper East – Upper West – Volta – Western – International
Experience level :
2 to 5 years
Educational level :
Key Skills :







June 2024