Senior Application Security Engineer, OpenSea
$170-285.5k
Decentralised NFT marketplace
Job no longer available
Decentralised NFT marketplace
501-1000 employees
Job no longer available
$170-285.5k
501-1000 employees
Company mission
To shape an accessible and open digital economy for everyone.
Role
Who you are
- Minimum of 5 years of experience in a related role, such as: security, devops, site reliability engineering, or software engineering
- Proficient in one or more programming languages, such as Python, JavaScript, Typescript, or Golang
- Familiarity with web application frameworks such as React, Next.js, or Django
- Solid understanding of web3, DAPPs, and smart contract development, preferably with experience in Ethereum or other similar platforms. A nice to have would be Solidity development experience
- Strong knowledge of web security principles and best practices, including but not limited to OWASP Top Ten, secure coding practices, and encryption
- Experience in analyzing systems and identifying security problems, threat modeling, code auditing, data security, system design, and security reviews
- Excellent problem-solving skills and the ability to adapt to new challenges in a fast-paced environment
What the job involves
- Lead the development, implementation, and maintenance of secure coding practices for our platform, with a strong focus on Web3 and blockchain technologies
- Conduct advanced security assessments, threat modeling, and code reviews of our applications and smart contracts, providing guidance to the engineering team
- Continuously monitor, identify, and remediate vulnerabilities in our applications and infrastructure, while driving security improvements
- Collaborate closely with cross-functional teams, including developers and product managers, to develop secure applications that adhere to industry best practices and regulatory requirements
- Design and implement advanced security features, such as authentication, authorization, and encryption, to protect sensitive data and user privacy
- Stay ahead of the latest security trends, vulnerabilities, and threat intelligence, as well as emerging technologies in the Web3 and blockchain space, providing recommendations to the team
- Develop and deliver security awareness training for developers and other team members, fostering a security-first mindset across the organization
- Lead incident response efforts and conduct post-mortem analysis to identify root causes and implement measures to prevent future occurrences
Our take
OpenSea is a peer-to-peer digital marketplace for NFTs or uniquely identifiable digital items. These items are authenticated with blockchain and are part of a new internet economy that consists of digital products representing art, game characters, domain names, and event tickets.
As NFT adoption surged, the platform initially faced speed and cost challenges tied to the limitations of the Ethereum network. In response, OpenSea expanded support to more scalable solutions such as Polygon, improving transaction efficiency and user experience while broadening access to lower-cost trading.
Despite increased competition following the fallout from FTX and the rise of rivals like Blur, OpenSea has continued to adapt its strategy with a renewed focus on long-term growth and community trust. Recent updated, including the decision to delay its SEA token launch to ensure strong rollout, the introduction of temporary 0% trading fees, and user-focused initiatives such as optional fee refunds, signal a more measured, user-centric approach as it promotes a revamped platform. While the competitive landscape remains intense, these moves suggest OpenSea is prioritizing sustainability and product quality, placing itself to remain a central player in the evolving NFT ecosystem.
Steph
Company Specialist at Welcome to the Jungle
Insights
5% employee growth in 12 months
Company
Funding (last 2 of 6 rounds)
Jan 2022
$300m
SERIES C
Jul 2021
$100m
SERIES B
Total funding: $427.3m
Company HQ
Brickell, Miami, FL
Leadership
Devin Finzer
(Co-Founder & CEO)Prior to co-founding OpenSea in 2017, Devin co-founded Claimdog, which was acquired by Credit Karma which he joined as an Engineering Manager. He also co-founded Iris Labs and spent nearly 2 years at Pinterest as a Software Engineer.
Nadav Hollander
(CTO)Prior to joining OpenSea in 2022, Nadav co-founded Dharma where he served as the CEO. He was also a Software Engineer at Coinbase.
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