Get introduced to vetted companies that are still hiring

Create a profile to become searchable by hiring managers.


Staff Blockchain Security Engineer



United States · Remote
Posted on Wednesday, November 15, 2023

Empower the Individual Through Crypto

Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014. Gemini offers a wide range of crypto products and services for individuals and institutions in over 70 countries.

Crypto is about giving you greater choice, independence, and opportunity. We are here to help you on your journey. We build crypto products that are simple, elegant, and secure. Whether you are an individual or an institution, we want to help you buy, sell, and store your bitcoin and cryptocurrency. Crypto is not just a technology, it's a movement.

At Gemini, our mission is to empower the individual and that includes giving our employees flexibility of choice — our Office Optional Policy allows employees to choose to work from one of our physical locations or from home.

The Department: Information Security

In the emerging industry of digital assets, there is nothing more important than trust (which is why Gemini’s very first hires were Security experts). The Gemini Security team forms the backbone of all that we do and is as diverse as the number of challenges we tackle in the crypto space. From security architecture and engineering to maintenance of cold storage systems and data centers to cybersecurity and litigation support, our team ensures that our customers, clients, and employees are safe, secure, and supported.

The Role: Staff Blockchain Security Engineer

Our blockchain security team within Application Security is focused on ensuring the safety and security of Gemini and our customer’s on-chain operations and assets. This team reviews the smart contracts and overall security posture of new tokens, networks, decentralized finance products, and web3 interactive platforms. The Blockchain Security team stays on the cutting edge so that Gemini can continue to deliver innovative crypto-based products while keeping our customers safe.


  • Evaluate security risk of new cryptocurrencies tokens and networks
  • Support engineers across the SDL, including design reviews, threat modeling, and code audits of blockchain-related infrastructure
  • Consult with Gemini’s various businesses on the best blockchain security practices
  • Deliver automation for high-signal, low-noise security tooling to increase coverage
  • Collaborate with product and engineering on architecting resilient, security-first services
  • Partner with third-party security firms to provide external validation of software development
  • Provide subject matter expertise to business partners on vendor selection as necessary

Minimum Qualifications:

  • 5+ years of experience working in application security roles or performing similar job functions
  • Enjoys working directly with software engineers, including in new languages, tool chains, and tech stacks
  • Prior experience with securing/hacking smart contracts or decentralized platforms (crypto or traditional)
  • Prior leadership of security design reviews, threat modeling, and defining security requirements
  • Awareness of numerous vulnerability classes, with knowledge of modern mitigation techniques
  • Detail-oriented communication skills via email, pull requests, and/or in-person presentations
  • Able to balance a software implementation's relative risk in context to defined business goals
  • Creating and extending software for development tooling to improve security automation

Preferred Qualifications:

  • Experience building (or breaking) smart contracts (Solidity, Vyper, Rust, etc)
  • Experience working with decentralized networks (either crypto or traditional)
  • Experience with the finance sector (DeFi or traditional FinTech)
  • Experience working with low-level cryptographic implementations/primitives
  • Experience with smart contract testing frameworks, such as Slither, Echidna, Foundry, etc.
It Pays to Work Here
The compensation & benefits package for this role includes:
  • Competitive starting salary
  • A discretionary annual bonus
  • Long-term incentive in the form of a new hire equity grant
  • Comprehensive health plans
  • 401K with company matching
  • Annual Learning & Development stipend
  • Paid Parental Leave
  • Flexible time off

Salary Range: The base salary range for this role is between $172,000 - $241,000 in the State of New York, the State of California and the State of Washington. This range is not inclusive of our discretionary bonus or equity package. When determining a candidate’s compensation, we consider a number of factors including skillset, experience, job scope, and current market data.

At Gemini, we strive to build diverse teams that reflect the people we want to empower through our products, and we are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. Equal Opportunity is the Law, and Gemini is proud to be an equal opportunity workplace. If you have a specific need that requires accommodation, please let a member of the People Team know.