Senior Blockchain Security Engineer

• Identify gaps in our Crypto-Security infrastructure and drive cross-function efforts to address them

• Perform security assessments, framework development, and threat modeling of assets, including various blockchain protocols, smart contracts, and other distributed ledger tech

• Partner with software engineering teams to advise on code and architecture for internal smart contract development

• Partner with internal tooling teams to drive the roadmap and vision for internal Coinbase blockchain security tools

• Identify automation opportunities in our tooling and processes, deliver a Proof of Concept, and write detail technical requirements

• Investigate impactful changes to the space, blockchain upgrades, and novel innovations such as zero-knowledge proofs and bleeding-edge blockchain protocols

• Publish blogs and give talks (internal and external) on newfound vulnerabilities, incident investigations, unique integration risks, and related topics

• 4+ years of experience in security engineering, with significant focus on blockchain, distributed systems, or cryptographic infrastructure security

• Extensive experience in architecture and threat modeling of security-critical backend crypto systems

• Expertise in Application Security and cryptography, including applied knowledge of cryptographic primitives used in blockchain protocols (signing schemes, hash functions, zero-knowledge proofs, MPC)

• Familiar with all the fundamentals of onchain activity - blockchain explorers, funds tracing, bridging, DEXs, NFTs, smart contracts

• Familiar with recent innovations such as restaking and the various EIPs currently being considered

• Ability to provide leadership and mentorship to coworkers

• Experience in a highly cross-functional role and/or leading a team

• Excellence in clear, direct, and kind communication with technical and non-technical stakeholders, including the ability to translate complex security risks into actionable guidance for leadership

• Experience with using AI/agentic tooling (Claude Code, Cursor, GPT Codex, etc.)

• Demonstrates the ability to responsibly use generative AI tools and copilots (e.g., LibreChat, Gemini, Glean) in daily workflows, continuously learn as tools evolve, and apply human-in-the-loop practices to deliver business-ready outputs and drive measurable improvements in efficiency, cost, and quality.

Nice to haves:

• Knowledge of security architecture of non-EVM based blockchains

• Deep understanding of cryptography such as zk-SNARKs, FHE and MPC

• Experience in at least one of: MongoDB, Snowflake, Databricks, Dune

At Coinbase, our mission is to increase economic freedom in the world. It's a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform - and with it, the future global financial system. To achieve our mission, we're seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company's hardest problems. Our https://www.coinbase.com/mission is intense and isn't for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there's no better place to be. While many roles at Coinbase are remote-first, we are not remote-only. In-person participation is required throughout the year. Team and company-wide offsites are held multiple times annually to foster collaboration, connection, and alignment. Attendance is expected and fully supported. Security is a primary competency at Coinbase, and the Security Team keeps a watchful eye over every aspect of it. Every day, we go to battle against some of the most sophisticated attackers in the world to protect billions of dollars worth of digital assets and ensure that our customers and employees can enjoy a safe, trusted experience. As Coinbase scales globally, our team is scaling along with it, using a blend of tooling, automation, and strategic team growth to ensure that we're well-equipped to protect the next billion users of crypto. Blockchain Security (BlockSec) team's mission is to secure funds and data from protocols to wallets. Coinbase has a unique opportunity: enabling our customers to easily and securely interface with blockchains, a.k.a. digital asset networks, a.k.a. cryptocurrencies. Blockchains are a cutting edge technology, with many unique security considerations for any entity that supports interaction with them. Understanding those unique considerations requires deep expertise in blockchains and the ability to maintain that expertise over time., Coinbase