Senior Software Engineer, Onchain

About the Company

Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all — bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure.

As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact.

Our team’s mission is to enable Gemini’s internal and external users to seamlessly interact with blockchain networks in a stable, secure, straightforward way. The Onchain group builds Gemini’s onramps to the blockchain “from CSS to ECDSA.” Our teams are solving problems across the entire crypto product user journey, including the user experience of crypto transfers, custody and staking down to the lowest levels of blockchain protocols and cryptographic signing algorithms.

Our systems facilitate on‑chain transactions for billions of USD worth of digital assets using state‑of‑the‑art technology and security. We have openings across many of our teams, including Asset Transfers, Staking, Cloud Wallets, Protocols, Signing, and Blockchain Infrastructure. The teams are small, capable, agile, and have extensive ownership of the systems and solutions. We are continually growing, solving unique problems, and discovering new opportunities.

As a Senior Software Engineer in the Onchain domain, you will work with talented engineers to enhance and expand the features of our blockchain‑based products and the supporting platforms, including the Staking, Transfers, and Custody products. You will participate in solutioning for new features and products, helping to drive innovation to bring new value to users. You will contribute to the technical direction and engineering culture within your product team, leveling‑up junior engineers in the process.

You will also help drive operational excellence in our systems and processes. Our goal is to design, develop, deploy, and support user‑facing distributed systems that serve millions of users, with a focus on safety, security, and user experience. We believe in fixing what’s broken, automating wherever possible, and constantly improving our processes.

Location:

In person twice a week at either our San Francisco, CA or New York City, NY office.

• Participate in the design, development, and deployment of new features for your team
• Research and integrate new blockchain technologies, concepts, and solutions
• Contribute to the high availability, reliability, and security of our systems
• Participate in code reviews, mentor junior engineers, and share best practices
• Stay up-to-date with emerging trends and technologies in the crypto and blockchain space

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field
• 5+ years of experience in software development with typed languages such as:
  Scala, Java or C# C++
• Proven track record of developing and maintaining large‑scale, distributed systems
• Experience with agile development methodologies and a commitment to following best practices in code health, testing, and maintainability
• Excellent communication and teamwork abilities
• Strong problem‑solving skills and the ability to work under pressure
• Familiarity with cloud technologies and microservices architecture

• Experience in the crypto or fintech industry
• Understanding of blockchain technologies and crypto wallets
• Leadership experience or a strong interest in mentoring junior team members

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…