Web3 Security Engineer

As a Web3 Security Engineer at Sky Mavis, you drive the security of smart contracts developed by the engineering team. You are embedded with engineers to establish security best practices and ensure the bulletproof safety of smart contracts deployed on Ronin, our purpose-built blockchain, and across our games and digital assets. You perform threat modeling, run scanning tools, audit codebases, collaborate closely with engineering to resolve vulnerabilities, and oversee secure deployment.

What you'll do

• Perform internal and external security assessments of products including games and wallet to ensure the highest level of security before launch, including threat modeling, tabletop exercises, and code reviews.
• Hunt for security vulnerabilities in smart contracts through white hat testing.
• Ensure smart contracts generate sufficient events to monitor and leverage blockchain monitoring platforms to continuously monitor smart contracts.
• Maintain and update runbooks for handling and escalating security incidents, and participate in the incident response process to address smart contract incidents.
• Identify and evaluate new security technologies and tooling to adopt internally and continuously improve Sky Mavis' security best practices.
• Identify security gaps in smart contract architecture and drive positive change to improve the overall security posture.
• Collaborate with the engineering team to identify and resolve security gaps, working responsively across functions.

What you bring

• A bachelor's or master's degree in computer science or a related field.
• 2+ years of software engineering experience, with experience auditing smart contracts.
• Strong knowledge of Solidity and hands-on expertise with blockchain and smart contract security.
• Ability to audit Solidity code and familiarity with blockchain monitoring solutions.
• Clear communication skills in English and the ability to build trust across diverse teams.
• Strong analytical and problem-solving skills to identify and resolve security issues.
• A bias for action and a driven approach to learning.

Nice to have

• Python scripting experience.
• Experience using large language models.
• A background in gaming, active participation in the crypto ecosystem, or hackathon experience.

About Sky Mavis

Sky Mavis is the creator of Axie Infinity, the most successful Web3 game ever, and Ronin, a purpose-built blockchain ranked as the 4th most-used chain in 2024 behind Ethereum, Bitcoin, and Solana. The company has processed over $4.3 billion in on-chain volume and is backed by $170 million from top-tier investors including a16z, Accel, Libertus Capital, and Paradigm. This role is based in Ho Chi Minh City, Vietnam.