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Principal Security Engineer, Threat Intelligence & Investigations at Circle. Location Information: U.S. - California, United States. . Circle is a financial technology company at the epicenter of the emerging internet of money, where value can finally travel like other digital data — globally, nearly instantly and less expensively than legacy settlement systems. This ground-breaking new internet layer opens up previously unimaginable possibilities for payments, commerce and markets that can help raise global economic prosperity and enhance inclusion. Our infrastructure – including USDC, a blockchain-based dollar – helps businesses, institutions and developers harness these breakthroughs and capitalize on this major turning point in the evolution of money and technology.. 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 and diverse work environment where new ideas are encouraged and everyone is a stakeholder.. Principal Security Engineer, Threat Intelligence & Investigations. What you’ll be responsible for. As a Principal Security Engineer, you’ll lead the blockchain component of Circle’s Threat Intelligence Program—delivering actionable, refined intelligence to support critical decision-making across the business. You’ll partner with teams across the organization to improve detection capabilities, respond to blockchain-focused incidents, and contribute to the broader maturity of Circle’s intelligence operations. This role requires deep Web3 threat expertise, a customer-first mindset, and a strong ability to automate and scale intelligence workflows. As the sole analyst covering the US timezone, you'll play a vital role in supporting global coverage, including occasional on-call responsibilities to support security operations.. What you’ll work on. Build and manage the blockchain arm of Circle’s Threat Intelligence Program. Collaborate with product and security teams to threat model new Web3 products and enhance detections. Monitor, triage, and assess incoming intelligence feeds and alerts. Process Requests for Intelligence (RFIs) and provide timely, actionable insights. Produce clear and impactful threat intelligence reports, briefings, and automated outputs. Develop AI-driven workflows using SOAR and TIP platforms to streamline intelligence operations. Build and maintain trusted relationships with internal stakeholders and external partners. Contribute to the long-term strategy and maturity of Circle’s Threat Intelligence Program. Support proactive threat hunting efforts within blockchain ecosystems. What you’ll bring to Circle. Core Requirements. 7+ years of experience in cyber threat intelligence, with a focus on blockchain/Web3 threats. Proven ability to analyze smart contract exploits, protocol vulnerabilities, and related attack techniques. Strong intel-sharing relationships within the crypto threat intelligence community. Deep understanding of threat actors, tactics, and the evolving cyber threat landscape. Excellent communication skills, including written reports and executive-level briefings. Ability to operate independently and manage competing priorities in a high-velocity environment. Preferred Requirements. Experience designing and maintaining custom threat feeds and novel collection methods. Vision for leveraging AI to automate intelligence collection and dissemination. Comfortable interfacing with senior leadership and translating complex risks clearly. Proficiency with TIPs, SOAR platforms, and scripting for automation. 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: $200,000 - $257,500. We are an equal opportunity employer and value diversity at Circle. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. 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 . [email protected]. for support. We respect your privacy and will connect with you separately from our interview process to accommodate your needs.. #LI-Remote. .