[![Image]() Meet Jobicy Copilot — free AI autofill for job applications + remote job alerts ›](#) [All remote jobs](https://jobicy.com/jobs.md)Open role[![CertiK logo](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2021/03/Jobicy-210308091023-955845.jpg)](https://jobicy.com/company/certik.md)Remote opportunity at[CertiK](https://jobicy.com/company/certik.md) # Blockchain Security Expert – Anti Defect Track Review the role, location requirements, compensation details, and application process before deciding whether this opportunity fits your next career move. [Apply for this job](#job-application)[View company](https://jobicy.com/company/certik.md)Share10 Sep 2026Published31Listing views1Application actions10 Oct 2026Apply before Opportunity details ## About this role. AI SummaryCertiK is hiring a Blockchain Security Expert to perform smart-contract and blockchain security audits, identify vulnerabilities, and help define attack models. The role also involves analyzing exploited code patterns and developing or maintaining tools for feature code analysis. Candidates need at least three years of experience, foundational information-security knowledge, and proficiency in Solidity, Go, Rust, C++, Python, or Node.js. Strong English communication skills and interest in emerging blockchain security technologies are essential, while static analysis, production pipelines, and Ethereum-related platform experience are preferred. ## Role DNA A quick view of the complexity, pace, ownership and collaboration implied by the job description. ### Job Complexity 5/5EasyHard ### Pace & Pressure 4/5RelaxedFast-paced ### Autonomy Level 4/5GuidedFull ownership ### Communication Load 4/5IndependentCollaborative AI insightThis is a highly specialized security engineering role requiring practical vulnerability research, smart-contract auditing, and strong programming ability. The work demands continuous learning because blockchain attack techniques and analysis tooling evolve quickly. ## Salary analysis Estimated compensation compared with the broader US market for similar roles. Estimated job medianMarket rate$120,000US market range$100k–$170k0$187k AI insightThe disclosed US target annual salary range is USD 90,000–150,000, with a midpoint of USD 120,000. A typical US market range for a security engineer specializing in blockchain and smart-contract auditing is estimated at USD 100,000–170,000 annually; compensation can rise with demonstrated audit experience, vulnerability research, and advanced protocol expertise. ## Core skills Skills and capabilities most closely associated with this opportunity. [Blockchain Security](https://jobicy.com/jobs?search_keywords=Blockchain%20Security.md)[Smart Contract Auditing](https://jobicy.com/jobs?search_keywords=Smart%20Contract%20Auditing.md)[Solidity](https://jobicy.com/jobs?search_keywords=Solidity.md)[Vulnerability Research](https://jobicy.com/jobs?search_keywords=Vulnerability%20Research.md)[Penetration Testing](https://jobicy.com/jobs?search_keywords=Penetration%20Testing.md)[Static Code Analysis](https://jobicy.com/jobs?search_keywords=Static%20Code%20Analysis.md)[Taint Analysis](https://jobicy.com/jobs?search_keywords=Taint%20Analysis.md)[Python](https://jobicy.com/jobs?search_keywords=Python.md)[Rust](https://jobicy.com/jobs?search_keywords=Rust.md)[Ethereum](https://jobicy.com/jobs?search_keywords=Ethereum.md) Sample interview questionsHow would you approach a security audit of a Solidity smart contract?I would first define the protocol's intended behavior, assets, trust boundaries, and threat model. I would then review the architecture and code manually, use static-analysis and testing tools, assess known vulnerability classes such as reentrancy and access-control flaws, and create proof-of-concept tests for validated findings. Finally, I would prioritize findings by impact and likelihood and provide clear remediation guidance. What is reentrancy, and how can it be mitigated in smart contracts? Reentrancy occurs when an external call transfers control to another contract before the original function has completed its state updates, allowing repeated execution against inconsistent state. Common mitigations include following checks-effects-interactions, using reentrancy guards, minimizing external calls, and using pull-payment patterns where appropriate. How would you use static analysis in blockchain security work? I would use static analysis to systematically identify risky patterns, data-flow issues, dangerous external calls, authorization gaps, and tainted inputs across a codebase. Tool output should be triaged rather than accepted blindly, with manual validation and targeted tests used to distinguish exploitable issues from false positives. Describe how you would investigate a reported on-chain exploit. I would collect transaction traces, contract source or bytecode, event logs, and relevant protocol state before and after the incident. I would reconstruct the attack path, identify the violated invariant or vulnerable code path, reproduce the exploit in a controlled environment, and recommend immediate containment plus durable code and monitoring improvements. How do you stay current with new blockchain vulnerabilities and analysis techniques? I review audit reports, incident postmortems, security research, protocol documentation, and updates from security tooling communities. I also reproduce notable vulnerabilities in test environments and convert recurring exploit patterns into review checklists, detection rules, or analysis-tool improvements. About the Company Founded in 2018 by professors of Yale University and Columbia University, CertiK is a pioneer in blockchain security, utilizing best-in-class AI technology to secure and monitor blockchain protocols and smart contracts. CertiK’s mission is to secure the cyber world. Starting with blockchain, CertiK applies cutting-edge innovations from academia into enterprise, enabling mission-critical applications to be built with security and correctness. CertiK is one of the fastest growing and most trusted companies in blockchain security and has become a true market leader. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Yearn, and Chiliz. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance. About the Position The primary responsibility of this role is contributing to CertiK’s security-related services at the intersection of cybersecurity and blockchain. CertiK’s offerings include security consulting, security reviews, and security auditing of smart contracts and blockchains, alongside penetration testing and various verification processes. As a Security Engineer at CertiK,
, You’ll discover and analyze security vulnerabilities in blockchain smart contracts, summarize attacked vulnerabilities, and design feature code analysis tools. You’ll also stay up-to-date with analysis tools and new technology trends to further strengthen CertiK’s security offerings and expand our services. ### Responsibilities * Participate in blockchain smart contract audits, identifying, analyzing, and addressing security vulnerabilities. * Help evaluate and define attack models for blockchain security. * Summarize and extract key characteristics from exploited code to build and maintain tools for feature code analysis. * Research and work with different analysis tools, continually learning and adapting to emerging technologies in the space. ### Requirements * A bachelor’s degree (or higher) in full-time education, preferably in a science or engineering field, plus 3+ years of work experience. * Familiarity with fundamental information security concepts. * Proficiency in at least one of the following languages: Solidity, Go, Rust, C++, Python, or Node.js, along with a solid grasp of common algorithms. * A demonstrated ability to function in an English working environment with strong English reading and writing skills. * A passion for blockchain technology and a drive to learn and adapt to new technologies. ### Bonus Points * Experience working with production pipelines—maintaining or developing them. * Familiarity with static code analysis (e.g., Syntax Analysis, Semantic Analysis, Taint analysis). * Exposure to popular blockchain-related platforms and technologies (e.g., Ethereum, Hyperledger, Cosmos). * Prior knowledge of blockchain smart contracts, security audits, and associated best practices. * Hands-on blockchain experience such as evaluating risks for blockchain projects or analyzing on-chain security events. ### Compensation ### Additional Information Target annual salary for this role performed is $90,000 – $150,000 if based in the US. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates. CertiK accepts applications for this position on an ongoing basis. CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles. In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire. CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law. CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. [https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf](https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf) All CertiK employees are expected to actively support diversity on their teams, and in the Company. Show more [Apply now >](https://jobicy.com/jobs/152966-blockchain-security-expert-anti-defect-track.md) * ![Upload CV](data:image/svg+xml;base64,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) ### Upload your resume now To unlock remote work opportunities and be discovered by global employers. 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