Sr Security Engineer, Detection Engineering

Sr Security Engineer, Detection Engineering

We are Lennar

Lennar is one of the nation's leading homebuilders, dedicated to making an impact and creating an extraordinary experience for their Homeowners, Communities, and Associates by building quality homes and providing exceptional customer service, giving back to the communities in which we work and live in, and fostering a culture of opportunity and growth for our Associates throughout their career. Lennar has been recognized as a Fortune 500® company and consistently ranked among the top homebuilders in the United States.

Join a Company that Empowers you to Build your Future

The Sr Security Engineer, Detection Engineeringleads detection engineering, automation, and monitoring and participates in incident response activities to protect the organization's IT infrastructure. This role is responsible for designing, implementing, optimizing, and automating security operations processes, leveraging advanced technologies such as Microsoft Sentinel, Purview, Defender, and Palo Alto Cortex XDR. The Sr. Cybersecurity Engineer collaborates with SOC analysts, MDR partners, and cross-functional teams to ensure rapid detection and effective response to security threats.

• A career with purpose.
• A career built on making dreams come true.
• A career built on building zero defect homes, cost management, and adherence to schedules.

Your Responsibilities on the Team

Systems Security :

Design, develop, and continuously optimize detection rules, analytics, and use cases for SIEM and XDR platforms (e.g., Microsoft Sentinel, Palo Alto Cortex XDR) to enhance threat detection and minimize false positives.

Architect and implement automation workflows using SOAR platforms and native integrations to streamline incident response, alert triage, and remediation processes.

Participate in the full incident response lifecycle, including detection, containment, eradication, recovery, and post-incident analysis for complex security events.

Monitor and analyze security events in real-time across diverse environments (cloud, on-premises, hybrid) using SIEM, XDR, and log management platforms.

Demonstrate hands-on experience with Microsoft security technologies (Sentinel, Purview, Defender for Cloud, Defender for Endpoint) and Palo Alto Cortex XDR.

Develop and maintain SOC metrics, dashboards, and executive-level reporting on incident trends, detection effectiveness, automation outcomes, and overall SOC performance.

Provide mentorship, guidance, and training to SOC analysts and junior team members, fostering a culture of continuous improvement and knowledge sharing.

Contribute to the development and enhancement of SOC processes, playbooks, and best practices.

Requirements

5+ years of relevant work experience in security operations, with a focus on SOC environments, incident detection / response, and threat hunting.

Additional Skills, Knowledge, and Experience :

Additional Requirements :

This role is ideal for a motivated security operations center engineer looking to use and build upon their existing technical skillsets. This role will deliver significant and essential security services necessary to protect the business operations of a large-scale enterprise. If you are passionate about cybersecurity and eager to grow in a fast-paced, collaborative environment, we encourage you to apply.

Physical & Office / Site Presence Requirements :

This is primarily a sedentary office position which requires the incumbent to have the ability to operate computer equipment, speak, hear, bend, stoop, reach, lift, and move and carry up to 25 lbs. Finger dexterity is necessary. 10-20% of travel is required.

This description outlines the basic responsibilities and requirements for the position noted. This is not a comprehensive listing of all job duties of the Associates. Duties, responsibilities and activities may change at any time with or without notice.

Life at Lennar

At Lennar, we are committed to fostering a supportive and enriching environment for our Associates, offering a comprehensive array of benefits designed to enhance their well-being and professional growth. Our Associates have access to robust health insurance plans, including Medical, Dental, and Vision coverage, ensuring their health needs are well taken care of. Our 401(k) Retirement Plan, complete with a $1 for $1 Company Match up to 5%, helps secure their financial future, while Paid Parental Leave and an Associate Assistance Plan provide essential support during life's critical moments. To further support our Associates, we provide an Education Assistance Program and up to $30,000 in Adoption Assistance, underscoring our commitment to their diverse needs and aspirations. From the moment of hire, they can enjoy up to three weeks of vacation annually, alongside generous Holiday, Sick Leave, and Personal Day policies. Additionally, we offer a New Hire Referral Bonus Program, significant Home Purchase Discounts, and unique opportunities such as the Everyone's Included Day. At Lennar, we believe in investing in our Associates, empowering them to thrive both personally and professionally. Lennar Associates will have access to these benefits as outlined by Lennar's policies and applicable plan terms. Visit Lennartotalrewards.com to view our suite of benefits.

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Lennar is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws.