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 Throughout the summer, interns are supported by managers, mentors, and a close-knit cohort, with opportunities for learning, growth, and exposure to leaders across the company. 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 What you'll bring to Circle Core Requirements Foundational understanding of application security principles Experience with at least one programming language such as Python, JavaScript, or Java Familiarity with secure software development practices and DevSecOps concepts Coursework or project experience in threat modeling or risk analysis 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 Circle is on a mission to create an inclusive financial future, with transparency at our core. We consider a wide variety of elements when crafting our compensation ranges and total compensation packages. Starting pay is determined by various factors, including but not limited to: relevant experience, skill set, qualifications, and other business and organizational needs. Please note that compensation ranges may differ for candidates in other locations. Base Pay Range: $ - $ We are an equal opportunity employer . We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status, or any other protected status required by the laws in the locations where we hire. Additionally, Circle participates in the E-Verify Program in certain locations, as required by law. Should you require accommodations or assistance in our interview process because of a disability, please reach out to accommodations@circle.com for support. We respect your privacy and will connect with you separately from our interview process to accommodate your needs. #LI-Remote

• supporting the sustainment of Applications/Services providing the backend administration and support in client infrastructure • plan, design, develop, migrate, install, or implement various technology products • apply knowledge of software and programming to deploy or migrate and test applications • support acceptance testing of applications in target cloud environment • support application bug fix for migration-related application defects • structure and coordinate with application functional owners for the required testing of applications prior to, during, and post migration • report and resolve issues related to infrastructure and application migration activities • determine the Definition of Ready for work items to be slotted into a Sprint activities • deliver working software or acceptable deliverables in every iteration/activities • help the Product Owner break larger work items (Epics, User Stories) into smaller User Stories based on functionality activities • estimate Product Backlog items (Epics, User Stories), decompose User Stories into smaller actionable Tasks, estimate Tasks during Sprint Planning, commit to Sprint delivery based on the Definition of Done, adhere to the Definition of Done activities • report daily status & impediments during Daily Stand-Up activities • escalate impediments, frequent (daily) communication with and demonstration of progress to the Product Owner activities • maintain all boards (Scrum) activities • maintain project management tool (JIRA) • work productively in a team environment and participate as a positive and cooperative team member • strong verbal, written, organizational and documentation skills.

• Responsible for utilizing an advanced understanding of the customer needs and technical leadership expertise to champion return on engineering investment. • Participate as technical lead on large, complex customer engagements involving broad, system solutions and identify and drive demand creation by maximizing Arrow content on designs. • Partner with the sales team across pre-and post-sales activities, providing advanced technical support and consulting to promote demand creation. • Champion return on engineering investment, design win priorities, initiatives, and promotions by obtaining buy-in and support from sales. • Provide technical leadership to the branch, customers, and suppliers shaping strategy and guiding technical direction/priorities. • Demonstrate an advanced understanding of the strengths and weaknesses of supplier technologies and how those technologies relate to market needs, including vertical segmentation. • Position Arrow’s differential value proposition, supplier technologies, as well as, competitor technologies. • Possess a complete knowledge of products and full knowledge of entire scope of assigned lines. • Has sound product knowledge of Arrow's line card. • Attend supplier trainings. • Manage supplier and customer expectations by building and developing relationships with senior level decision makers, keeping stakeholders up-to-date on activities, plans, and progressing towards initiatives. • Deepen and broaden connections with key decision makers within suppliers and customers. • Attend and actively participate in strategic branch meetings and QBR. • Use ROI concepts for making strategic business plans and decisions. • Develop and drive strategic technical plans by supplier line or customer solutions. • Successfully create, organize and conduct engineering customer events or conference or engineering training. • Support design services initiatives.

• Own the end-to-end security of the Material application. • Secure the dependency supply chain while collaborating with engineering. • Develop internal automation to detect and block abuse patterns. • Conduct deep-dive security audits and code reviews. • Partner with infrastructure team to enhance Kubernetes deployments.