Threat Detection and Response Engineer II

Cargurus
Boston, Massachusetts 02298 United States  View Map
Posted: Jun 09, 2026
  • Full Time
  • Federal Government
  • Summary

    Who we areAt CarGurus (NASDAQ: CARG), our mission is to give people the power to reach their destination. We started as a small team of developers determined to bring trust and transparency to car shopping. Since then, our history of innovation and go-to-market acceleration has driven industry-leading growth. In fact, we're the largest and fastest-growing automotive marketplace, and we've been profitable for over 15 years.What we doThe market is evolving, and we are too, moving the entire automotive journey online and guiding our customers through every step. That includes everything from the sale of an old car to the financing, purchase, and delivery of a new one. Today, tens of millions of consumers visit CarGurus.com each month, and 30,000 dealerships use our products. But they're not the only ones who love CarGurus—our employees do, too. We have a people-first culture that fosters kindness, collaboration, and innovation, and empowers our Gurus with tools to fuel their career growth. Disrupting a trillion-dollar industry requires fresh and diverse perspectives. Come join us for the ride!Role overviewCarGurus is looking for a Security Engineer II to add to our growing Threat Detection and Response (TD&R) Team. This is a hands‑on technical role that will build our first line of defense against cybersecurity threats in a complex and evolving landscape. You will be responsible for our detection and response lifecycle, identifying and preventing threats from impacting our employees, customers and other stakeholders. As a Security Engineer II, you will have the opportunity to build a platform to identify and stop threats, work with data to solve complex security challenges, and serve as the primary defender for the CarGurus ecosystem.What you'll doBuild tools and techniques to detect threats to the company using an engineering-first approach that prioritizes reliability, maintainability and scalabilityLeverage AI and automation to streamline detection and response operations in a safe and reliable mannerOnboard, normalize and optimize security logging data to support detection engineering, applied ML models, and efficient querying during incidents.Develop high‑fidelity, rule‑based and ML‑driven detections as code, utilizing automated testing and CI/CD pipelines for deployment.Respond to alerts, threats, and security incidents, including participating in on‑call rotationsMonitor the threat landscape to identify and track emerging threats, ensuring that appropriate detective and preventative controls are deployedPartner with development teams to design controls for a cloud first infrastructure (AWS, Kubernetes, etc)What you'll bring3+ years of experience in software, security, and/or data engineeringStrong desire to apply the latest technology, including AI and ML, to defend against threatsExperience with data pipelines and data engineering, especially centralized logging, SIEM tools, and data lakesDesire to measure the success of your work with quantitative tools like Precision and RecallExperience in at least one programming language such as Python, Go or similarExperience with cloud infrastructure and technologies such as AWS, Kubernetes, containers, IaC, etcExperience with good engineering practices such as git/GitHub and CI/CD automationsFamiliarity with tactics, techniques, and procedures used by threat actorsFamiliarity detecting and responding to cybersecurity incidentsStrong passion for continuous learning, especially related to cybersecurity and technologyTeam player with strong oral and written communication skillsSalary & CompensationThe displayed range represents the expected annual base salary / On-Target Earnings (OTE) for this position. On-Target Earnings (OTE) is inclusive of base salary and on-target commission earnings, which applies exclusively to sales roles. Individual pay within this range is determined by work location and other factors such as job-related skills, experience, and relevant education or training. This annual base salary forms part of a comprehensive Total Rewards Package. In addition to benefits, this role may qualify for discretionary bonuses/incentives and Restricted Stock Units (RSUs).Position Pay Range: $107,000 - $135,000 USDWorking at CarGurusWe reward our Gurus' curiosity and passion with best-in-class benefits and compensation, including equity for all employees, both when they start and as they continue to grow with us. Our career development and corporate giving programs, as well as our employee resource groups (ERGs) and communities, help people build connections while making an impact in personally meaningful ways. A flexible hybrid model and robust time off policies encourage work-life balance and individual well-being. Thoughtful perks like daily free lunch, a new car discount, meditation and fitness apps, commuting cost coverage, and more help our people create space for what matters most in their personal and professional lives.We welcome allCarGurus strives to be a place to which people can bring the ultimate expression of themselves and their potential—starting with our hiring process. We do not discriminate based on race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, or sexual orientation. We foster an inclusive environment that values people for their skills, experiences, and unique perspectives. That's why we hope you'll apply even if you don't check every box listed in the job description. We also encourage you to tell your recruiter if you require accommodations to participate in our hiring process due to a disability so we can provide the appropriate support. We want to know what only you can bring to CarGurus.#J-18808-Ljbffr

  • Job Description

    Who we areAt CarGurus (NASDAQ: CARG), our mission is to give people the power to reach their destination. We started as a small team of developers determined to bring trust and transparency to car shopping. Since then, our history of innovation and go-to-market acceleration has driven industry-leading growth. In fact, we're the largest and fastest-growing automotive marketplace, and we've been profitable for over 15 years.What we doThe market is evolving, and we are too, moving the entire automotive journey online and guiding our customers through every step. That includes everything from the sale of an old car to the financing, purchase, and delivery of a new one. Today, tens of millions of consumers visit CarGurus.com each month, and 30,000 dealerships use our products. But they're not the only ones who love CarGurus—our employees do, too. We have a people-first culture that fosters kindness, collaboration, and innovation, and empowers our Gurus with tools to fuel their career growth. Disrupting a trillion-dollar industry requires fresh and diverse perspectives. Come join us for the ride!Role overviewCarGurus is looking for a Security Engineer II to add to our growing Threat Detection and Response (TD&R) Team. This is a hands‑on technical role that will build our first line of defense against cybersecurity threats in a complex and evolving landscape. You will be responsible for our detection and response lifecycle, identifying and preventing threats from impacting our employees, customers and other stakeholders. As a Security Engineer II, you will have the opportunity to build a platform to identify and stop threats, work with data to solve complex security challenges, and serve as the primary defender for the CarGurus ecosystem.What you'll doBuild tools and techniques to detect threats to the company using an engineering-first approach that prioritizes reliability, maintainability and scalabilityLeverage AI and automation to streamline detection and response operations in a safe and reliable mannerOnboard, normalize and optimize security logging data to support detection engineering, applied ML models, and efficient querying during incidents.Develop high‑fidelity, rule‑based and ML‑driven detections as code, utilizing automated testing and CI/CD pipelines for deployment.Respond to alerts, threats, and security incidents, including participating in on‑call rotationsMonitor the threat landscape to identify and track emerging threats, ensuring that appropriate detective and preventative controls are deployedPartner with development teams to design controls for a cloud first infrastructure (AWS, Kubernetes, etc)What you'll bring3+ years of experience in software, security, and/or data engineeringStrong desire to apply the latest technology, including AI and ML, to defend against threatsExperience with data pipelines and data engineering, especially centralized logging, SIEM tools, and data lakesDesire to measure the success of your work with quantitative tools like Precision and RecallExperience in at least one programming language such as Python, Go or similarExperience with cloud infrastructure and technologies such as AWS, Kubernetes, containers, IaC, etcExperience with good engineering practices such as git/GitHub and CI/CD automationsFamiliarity with tactics, techniques, and procedures used by threat actorsFamiliarity detecting and responding to cybersecurity incidentsStrong passion for continuous learning, especially related to cybersecurity and technologyTeam player with strong oral and written communication skillsSalary & CompensationThe displayed range represents the expected annual base salary / On-Target Earnings (OTE) for this position. On-Target Earnings (OTE) is inclusive of base salary and on-target commission earnings, which applies exclusively to sales roles. Individual pay within this range is determined by work location and other factors such as job-related skills, experience, and relevant education or training. This annual base salary forms part of a comprehensive Total Rewards Package. In addition to benefits, this role may qualify for discretionary bonuses/incentives and Restricted Stock Units (RSUs).Position Pay Range: $107,000 - $135,000 USDWorking at CarGurusWe reward our Gurus' curiosity and passion with best-in-class benefits and compensation, including equity for all employees, both when they start and as they continue to grow with us. Our career development and corporate giving programs, as well as our employee resource groups (ERGs) and communities, help people build connections while making an impact in personally meaningful ways. A flexible hybrid model and robust time off policies encourage work-life balance and individual well-being. Thoughtful perks like daily free lunch, a new car discount, meditation and fitness apps, commuting cost coverage, and more help our people create space for what matters most in their personal and professional lives.We welcome allCarGurus strives to be a place to which people can bring the ultimate expression of themselves and their potential—starting with our hiring process. We do not discriminate based on race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, or sexual orientation. We foster an inclusive environment that values people for their skills, experiences, and unique perspectives. That's why we hope you'll apply even if you don't check every box listed in the job description. We also encourage you to tell your recruiter if you require accommodations to participate in our hiring process due to a disability so we can provide the appropriate support. We want to know what only you can bring to CarGurus.#J-18808-Ljbffr

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