{"schemaVersion":"jobsearcher.job.v1","id":"d122387db1772f9192f37cc5","url":"https://jobsearcher.com/jobs/d122387db1772f9192f37cc5","canonicalUrl":"https://jobsearcher.com/jobs/d122387db1772f9192f37cc5","title":"Sr. Security Engineer (Penetration Testing)","description":"Why Us?\nCertiK is a pioneer in blockchain security, leveraging best-in-class AI technology to protect and monitor blockchain protocols and smart contracts. Founded in 2018 by professors from Yale University and Columbia University, CertiK’s mission is to secure the web3 world. CertiK applies cutting-edge innovations from academia to enterprise, enabling mission-critical applications to scale with safety and correctness.\n\nAbout the Role\nThe primary responsibility of this role is for CertiK’s security-related services. Intersecting cybersecurity and blockchain, CertiK’s security offerings include security consulting, security reviews, security auditing of smart contracts and blockchains, verification of smart contracts, penetration testing, and more. We are looking to hire someone with a passion for application security and penetration testing. This is a fun and challenging full-time position. If you are excited about hacking, threat modeling, scanning, auditing, designing, and enhancing the security of applications across the board then you will thrive in this role. While you work with clients, we will also provide you with plenty of opportunities to get involved with research and development efforts to help us raise the standards of blockchain security.\nResponsibilities\nPerform security assessments on web, mobile, thick client applications, and browser extensions\nConduct external and internal network penetration tests\nPerform security source code reviews\nPerform cloud security reviews\nDevelop comprehensive pentest reports for both technical and non-technical audiences\nResearch and develop innovative techniques, tools, and methodologies for pentesting applications in the blockchain space\nContribute to the community by developing tools, presentations, and blog posts\nRequirements\nPassionate about cryptocurrency, DeFi, and blockchain, with a willingness to learn Web3 technologies such as smart contracts\nMinimum of 4 years of experience in application security and penetration testing\nExperienced in source code review for different languages, with a strong understanding of JavaScript and TypeScript\nExperienced in mobile application penetration testing\nFamiliar with cloud platforms and their security risks, such as AWS, Azure, and GCP\nExperience in programming with scripting languages such as Python and Bash\nSolid understanding of cryptography\nBS/MS/PhD in Computer Science or Information Security\nStrong spoken and written communication skills\nBonus Points\nExperienced in pentesting Web3 applications such as crypto exchanges, wallets, Dapps, and key custodian solutions\nExperienced in smart contract security audits\nFamiliar with browser extension architecture and security risks\nActively participate in the blockchain security community\nOSCP, OSWE, OSCE, GWAPT, or comparable certification\nParticipated in bug bounty programs and audit contests\nPublished security-related blog posts and spoken at security conferences and/or local meetups\nAbout the Company\nOne of the fastest-growing and most trusted companies in blockchain security, CertiK is a true market leader. To date, CertiK has worked with over 3,200 Enterprise clients, secured over $310 billion worth of digital assets, and has detected over 60,000 vulnerabilities in blockchain code. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Terra, Yearn, and Chiliz.\n\nInvestors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Coinbase Ventures, Binance, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors.\n\nCompensation\nTarget annual base salary for this role performed in the US is $100,000 - $180,000. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates.\n\n#LI-Remote\n#blockchain\n#startups\n#hiring\n\nCertiK 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.\nIn 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.\nCertiK 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.\nCertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements.\nhttps://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf\nAll CertiK employees are expected to actively support diversity on their teams, and in the Company.\nWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.","company":"Certik","rawCompany":"certik","city":"Remote","state":"OR","isRemote":false,"isActive":false,"createdAt":"2026-08-06T12:19:18.597Z","occupations":[{"code":"15-1299.04","title":"Penetration Testers","slug":"penetration-testers"},{"code":"15-1299.05","title":"Information Security Engineers","slug":"information-security-engineers"},{"code":"15-1299.07","title":"Blockchain Engineers","slug":"blockchain-engineers"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Sr. Security Engineer (Penetration Testing)","description":"Why Us?\nCertiK is a pioneer in blockchain security, leveraging best-in-class AI technology to protect and monitor blockchain protocols and smart contracts. Founded in 2018 by professors from Yale University and Columbia University, CertiK’s mission is to secure the web3 world. CertiK applies cutting-edge innovations from academia to enterprise, enabling mission-critical applications to scale with safety and correctness.\n\nAbout the Role\nThe primary responsibility of this role is for CertiK’s security-related services. Intersecting cybersecurity and blockchain, CertiK’s security offerings include security consulting, security reviews, security auditing of smart contracts and blockchains, verification of smart contracts, penetration testing, and more. We are looking to hire someone with a passion for application security and penetration testing. This is a fun and challenging full-time position. If you are excited about hacking, threat modeling, scanning, auditing, designing, and enhancing the security of applications across the board then you will thrive in this role. While you work with clients, we will also provide you with plenty of opportunities to get involved with research and development efforts to help us raise the standards of blockchain security.\nResponsibilities\nPerform security assessments on web, mobile, thick client applications, and browser extensions\nConduct external and internal network penetration tests\nPerform security source code reviews\nPerform cloud security reviews\nDevelop comprehensive pentest reports for both technical and non-technical audiences\nResearch and develop innovative techniques, tools, and methodologies for pentesting applications in the blockchain space\nContribute to the community by developing tools, presentations, and blog posts\nRequirements\nPassionate about cryptocurrency, DeFi, and blockchain, with a willingness to learn Web3 technologies such as smart contracts\nMinimum of 4 years of experience in application security and penetration testing\nExperienced in source code review for different languages, with a strong understanding of JavaScript and TypeScript\nExperienced in mobile application penetration testing\nFamiliar with cloud platforms and their security risks, such as AWS, Azure, and GCP\nExperience in programming with scripting languages such as Python and Bash\nSolid understanding of cryptography\nBS/MS/PhD in Computer Science or Information Security\nStrong spoken and written communication skills\nBonus Points\nExperienced in pentesting Web3 applications such as crypto exchanges, wallets, Dapps, and key custodian solutions\nExperienced in smart contract security audits\nFamiliar with browser extension architecture and security risks\nActively participate in the blockchain security community\nOSCP, OSWE, OSCE, GWAPT, or comparable certification\nParticipated in bug bounty programs and audit contests\nPublished security-related blog posts and spoken at security conferences and/or local meetups\nAbout the Company\nOne of the fastest-growing and most trusted companies in blockchain security, CertiK is a true market leader. To date, CertiK has worked with over 3,200 Enterprise clients, secured over $310 billion worth of digital assets, and has detected over 60,000 vulnerabilities in blockchain code. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Terra, Yearn, and Chiliz.\n\nInvestors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Coinbase Ventures, Binance, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors.\n\nCompensation\nTarget annual base salary for this role performed in the US is $100,000 - $180,000. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates.\n\n#LI-Remote\n#blockchain\n#startups\n#hiring\n\nCertiK 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.\nIn 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.\nCertiK 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.\nCertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements.\nhttps://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf\nAll CertiK employees are expected to actively support diversity on their teams, and in the Company.\nWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.","datePosted":"2026-08-06T12:19:18.597Z","dateModified":"2026-08-06T12:19:18.597Z","hiringOrganization":{"@type":"Organization","name":"Certik","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Remote","addressRegion":"OR","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"d122387db1772f9192f37cc5"},"url":"https://jobsearcher.com/jobs/d122387db1772f9192f37cc5"}}