Circle (NYSE: CRCL) is one of the world’s leading internet financial platform companies, building the foundation of a more open, global economy through digital assets, payment applications, and programmable blockchain infrastructure. Circle’s platform includes the world’s largest regulated stablecoin network anchored by USDC, Circle Payments Network for global money movement, and Arc, an enterprise-grade blockchain designed to become the Economic OS for the internet. Enterprises, financial institutions, and developers use Circle to power trusted, internet-scale financial innovation. Learn more at circle.com.
What You’ll Be Part Of
Circle is committed to visibility and stability in everything we do. As we grow as an organization, we're expanding into some of the world's strongest jurisdictions. Speed and efficiency are motivators for our success and our employees live by our company values: High Integrity, Future Forward, Multistakeholder, Mindful, and Driven by Excellence. We have built a flexible work environment where new ideas are encouraged and everyone is a stakeholder.
About The Program
The Circle Internship Program is a 12-week, remote-first experience running from May 26 to August 14, 2026, designed to give interns hands-on experience building the future of global finance. Interns work on meaningful, real-world projects that support Circle’s mission to enable the frictionless exchange of value.
The program includes three in-person experiences designed to deepen learning and connection:
- Circle Forward Week in Miami
- Development Week at Circle’s New York City HQ in One World Trade Center
- Final Showcase Week in the San Francisco Bay Area
What you’ll be responsible for
As an Application Security Intern, you will contribute to the Product Security team by building scalable automation that strengthens Circle’s secure development lifecycle. You will focus on developing systems that accelerate the triage and remediation of CodeQL alerts, including AI-assisted workflows that improve signal quality and reduce time-to-resolution for vulnerabilities. Working closely with security and engineering partners, you will help embed automated security controls into CI/CD pipelines and improve the accuracy, efficiency, and scalability of application security processes.
What you’ll work on
- Build automation to streamline the triage and remediation of CodeQL security alerts
- Design workflows that leverage AI agents to classify and prioritize security findings
- Tune CodeQL rules to improve static analysis quality and reduce false positives
- Integrate CodeQL-based security checks and automations into CI/CD pipelines
- Collaborate with security and engineering teams to embed scalable security controls into development workflows
Core Requirements
Preferred Requirements
- Exposure to security scanning tools such as SAST, SCA, or CI/CD-integrated security tooling
- Experience with security platforms such as GitHub Advanced Security, Snyk, Wiz, or similar tools
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