Blockchain Security Engineer - Senior Level (Solidity / Rust / Golang )

Devconnectplatform; United States; Remote; USD 102,000 - 180,000; Full time

Benefits offered by this job

Medical insurance

Vision insurance

Dental insurance

401(k) with company matching

Life and AD&D insurance

HSA

FSA

Paid time off

Job summary

CertiK is seeking a Senior Blockchain Security Engineer to safeguard Web3 projects by auditing code, building security tooling, and driving research. You will work across smart contracts, blockchain nodes, and decentralized infrastructure to identify vulnerabilities and develop remediation strategies.

The role requires hands-on experience with blockchain tech, threat modeling, and proficiency in Rust/Go/Solidity/Python.

Qualifications

• Audit codebases for smart contracts, blockchain protocols, and dApps to identify and remediate vulnerabilities.
• Collaborate with external blockchain teams to improve security and implement remediation strategies.
• Conduct independent security research, explore new attack vectors, and deliver actionable insights.

Responsibilities

• Audit and review codebases for smart contracts, blockchain protocols, and dApps to identify and remediate vulnerabilities.
• Work with external blockchain teams to enhance security of their products with expert consultation and remediation strategies.
• Conduct independent security research, explore new attack vectors, and deliver actionable insights.
• Design, develop, and maintain internal security tools and frameworks to strengthen security services.

Skills

Smart contracts

Blockchain protocols

Rust

Go

Solidity

Python

Threat modeling

Security analysis

DApps security

Education

Bachelor's/Master's/PhD in CS/Math/Security

Job description

# Blockchain Security Engineer - Senior Level (Solidity / Rust / Golang )CertiK102k–180k USDFull-timeremote· seniorUSAsolidityrustgolangweb3gopythonListed via Jobicy · posted 4 Nov 2026. The application happens there, not on DevConnect.Apply on Jobicy## DescriptionAbout the Role:We are seeking a Senior Blockchain Security Engineer with a strong security mindset and deep technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. You will play a critical role in safeguarding Web3 projects by auditing code, building security tools, and driving research. If you have hands-on experience in Web3 and are passionate about advancing the security of decentralized technologies, we’d love to hear from you.Responsibilities- Audit and review codebases for smart contracts, blockchain protocols, and decentralized applications (dApps) to identify and remediate vulnerabilities.- Work closely with external blockchain teams to enhance the security of their products by providing expert security consultation and implementing remediation strategies.- Conduct independent security research, explore new attack vectors, and deliver actionable insights.- Design, develop, and maintain internal security tools and frameworks to strengthen our security services.- Continuously improve internal processes, methodologies, and service offerings while ensuring high client satisfaction and long-term partnerships.Requirements- Bachelor’s, Master’s, or PhD in Mathematics, Computer Science, or Information Security.- Minimum 3 years of professional experience as a Software Engineer, Security Engineer, or in a related role.- At least 2 years of hands-on experience with blockchain technologies, including: Smart contracts (EVM chains, Solana, Move, etc.), Blockchain protocols (nodes, SDKs, Cosmos, etc.)- Strong expertise in threat modeling, risk assessment, and security analysis.- Proficiency in one or more programming languages: Rust, Go, Solidity, Python, etc.- Passion for Cryptocurrency, DeFi, and Blockchain technologies.Preferred Qualifications- Solid academic or practical background in Mathematics, Cryptography, or Cybersecurity.- Demonstrated experience conducting audits and collaborating with leading Web3 protocols.- Recognized achievements such as published CVEs, or strong placements in Attackathons, Bug Bounties, or Audit Contests.CompensationAdditional InformationAbout the CompanyCertiK is the largest blockchain security auditor and provides a comprehensive suite of tools to secure the industry at scale. To date, CertiK has worked with over 4,900 Enterprise clients, secured over $557 billion worth of digital assets, and has detected over 18,000 vulnerabilities in blockchain code. Our clients include leading projects such as OKX, Tether, Ripple, and Pancakeswap. 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.Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors.About YouYou’re a self-starter. You believe in tackling the most important problems, even if they are the most difficult problems. You’re comfortable with the unknown and understand that startup life means that you’re going to be wearing multiple hats. And that’s what motivates you. You’re accountable and obsessed with improvement, both in yourself and in others. You’re up to the challenge of building a world-class company that aims to be the infrastructure for more secure software for all.CompensationTarget annual salary for this role performed in the US is $102,000 - $180,000.The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates.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.pdfAll CertiK employees are expected to actively support diversity on their teams, and in the Company.