Blockchain Security Engineer

About the position Ready to be pushed beyond what you think you’re capable of? 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 work culture 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. At Coinbase, security isn't just a priority. It's the foundation of everything we do. In the fast-evolving world of digital currency, where trust is paramount, security breaches can mean the difference between success and failure. That's why we've made security a cornerstone of our mission, setting the standard for protecting millions of customers and billions of dollars in assets. As a Blockchain Security Engineer on the Decentralized Financial Security Team, you will work closely with engineers, technical product managers and senior leadership on designing secure products from the ground up. You will be responsible for performing secure design reviews, threat modeling, vendor reviews, working with vendors, and secure code reviews for upcoming Coinbase products or features that will be used by millions of customers. You will have an opportunity to work on the latest technology and provide leadership visibility of the current risk posture. You’ll also have an opportunity to pitch, lead and participate in cross-functional initiatives that uplevel the security of all Coinbase products and services.

Responsibilities

• Perform design reviews, threat modeling and code reviews of upcoming features and products.
• Identify top product risk areas and lead risk-reduction initiatives with cross-functional teams.
• Improve and/or automate existing processes to increase efficiency, utilizing agentic/AI tooling.
• Create monitoring solutions to ensure identified risks remain at acceptable levels for Coinbase.
• Participate in the team on-call rotation to support engineering teams through timely design consultations, vulnerability analysis, bug fix verification, etc.
• Publish blogs and give talks (internal and external) on newfound vulnerabilities, incident investigations, unique integration risks, and related topics

Requirements

• Strong understanding of blockchains (particularly EVM chains) and highly “crypto forward”
• Expertise in blockchain technology and foundational knowledge in security principles
• 2+ years of threat modeling/design review experience
• Strong communication skills with the ability to translate technical security requirements and risks into terms that anyone can understand.
• High ownership and drive, including the ability to work independently and unblock yourself.
• 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

• MS or PhD in Computer Science or related field.
• Experience in at least one of: Snowflake, Databricks, Dune
• Experience automating manual processes or carrying out process improvements.
• Experience in Blockchain, Exchange, or Decentralized Exchange Security.