Circle

www.circle.com

2 Jobs

1,094 Employees

About the Company

Circle is a global financial technology firm that enables businesses of all sizes to harness the power of digital currencies and public blockchains for payments, commerce and financial applications worldwide.

The Commissioner of Financial Regulation for the State of Maryland will accept all questions or complaints from Maryland residents regarding Circle Internet Financial, LLC (NMLS ID# 1201441) at 1100 North Eutaw Street, Suite 611, Baltimore, MD 21201, phone 1-888-784-0136. Circle's license status can be verified through the NMLS Consumer Access website at https://nmlsconsumeraccess.org.

Circle Internet Financial, LLC is licensed as a Money Transmitter by the New York State Department of Financial Institutions and to engage in Virtual Currency Business Activity by the New York State Department of Financial Services. https://www.circle.com/en/legal/licenses

Listed Jobs

Company Name: Circle
Job Title: Principal Security Engineer, Detection and Response, EMEA
Job Description: **Job Title:** Principal Security Engineer, Detection and Response, EMEA **Role Summary:** Lead and advance Circle’s security detection and response program across the EMEA region. Drive proactive threat identification, incident response, and AI‑enabled SOC operations while collaborating with cross‑functional teams and maintaining critical security tooling. **Expectations:** - Participate in on‑call rotation (every 3rd week) and occasional weekend/overnight incidents. - Operate effectively under high‑stress, time‑critical situations. - Manage competing priorities with sound judgment and independent decision‑making. - Communicate clearly and share ideas across technical and non‑technical stakeholders. **Key Responsibilities:** - Proactively identify emerging threats and develop detection techniques for anomalous behavior. - Lead incident response efforts, coordinating investigation and resolution with relevant teams. - Design, implement, and maintain core security tooling (SIEM, SOAR, case management, logging). - Drive AI integration into SOC processes to improve detection speed and accuracy. - Conduct threat modeling, vulnerability scanning, audits, and custom security tool development. - Provide security guidance and best‑practice recommendations to internal organizations. - Contribute to “Detection as Code” initiatives and maintain detection rule repositories. - Mentor junior engineers and foster a collaborative security culture. **Required Skills:** - 10+ years in security detection, response, or security engineering. - 3+ years leading security incident response for engineering‑focused incidents. - Deep expertise with SIEM, SOAR, and case‑management platforms. - Hands‑on experience in AWS + EKS; exposure to GCP or OCI is a plus. - Proficient in Python, Go, or comparable programming languages; scripting for detection automation. - Strong knowledge of macOS operating system, file systems, and memory analysis. - Experience deploying and managing AI/ML tooling for threat detection and understanding associated risks. - Familiarity with Slack, macOS, and G Suite collaboration tools. - Ability to design “Detection as Code” and work with infrastructure as code pipelines. - Professional or hobbyist exposure to blockchain technologies preferred. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Information Security, Engineering, or a related field (or equivalent practical experience). - Relevant security certifications (e.g., CISSP, GSEC, CISM, AWS Security Specialty) preferred but not mandatory.

London, United kingdom

Remote

Senior

11-03-2026

Company Name: Circle
Job Title: Senior Principal Security Engineer, Cloud Security
Job Description: **Job title** Senior Principal Security Engineer, Cloud Security **Role Summary** Lead the design, implementation, and continuous improvement of a global cloud‑security posture for blockchain, stablecoin, and payment services across AWS, GCP, and Azure. Partner with infrastructure, product, and third‑party validation teams to embed secure practices into the Arc SDK, USDC platform, and supporting systems. **Expectations** - Establish and evolve a comprehensive Cloud Security strategy aligned with business goals. - Demonstrate independent ownership of security architecture, risk reporting, and stakeholder engagement. - Drive cross‑functional collaboration and influence senior management and external auditors. - Deliver measurable reductions in security risk and operational incidents. **Key Responsibilities** - Develop and maintain secure cloud infrastructure blueprints (IaC, CI/CD). - Define and enforce controls for blockchain node operation across Ethereum, Cosmos, Solana, and other chains. - Recommended, validate, and audit security controls for production and third‑party validator environments. - Produce risk‑based security reports for executive leadership. - Continuously improve tooling, automation, and process for scalability and resilience. - Act as the primary liaison with external auditors, cloud vendors, and customers regarding security posture. **Required Skills** - 15+ years in security engineering with at least 5 years focused on cloud and infrastructure security. - Deep expertise in AWS, GCP, and Azure security services. - Proven experience running and securing blockchain nodes (Ethereum, Cosmos, Solana, etc.). - Advanced knowledge of secure coding, OWASP, Burp Suite, and secure application practices. - Strong container orchestration, Kubernetes, and IaC (Terraform, CloudFormation, Pulumi). - Proficiency in scripting (Python, Bash) and automation pipelines. - Experience with ISO 27001/27002, NIST CSF, and financial services security frameworks. - Excellent communication, stakeholder management, and influence abilities. **Required Education & Certifications** - Master’s degree in Computer Science or related field (strongly preferred). - Certifications: CISSP, CISM, or equivalent; AWS/Azure/GCP security certifications highly desirable.