Senior Cybersecurity Endpoint/Infrastructure Security Professional

Role Senior Cybersecurity Endpoint Security and Infrastructure Security (SentinelOne, Proofpoint, Guardicore, VPN and DLP security solutions) About the Role: Our team is seeking an experienced technologist to join our Cybersecurity team. Working as a Senior Cybersecurity within CSO, you will work with application owners, business partners, and other CSO teams; to design, implement, and maintain ATT endpoint and infrastructure security strategy. Focusing on protecting endpoints from threats (E.g. phishing, malware, data breaches) enact new security standards, and research emerging standards and protocols. The role involves creating, maintaining and enforcing robust endpoint security policies that align with ATTs business needs and security best practices. Roles Responsibilities: The Individual in this role will Architect and Lead SentinelOne Deployments: Design and implement SentinelOne, Proofpoint, Guardicore, VPN and DLP security solutions for a wide range of infrastructure and endpoints, ensuring scalable, resilient, and effective protection across: Multiple Linux distributions (RHEL, Ubuntu, CentOS, etc.) Windows Server (various versions) Windows and MacOS endpoints Virtual desktop infrastructure (HVDs) Kubernetes clusters running on-prem and in cloud environments Integration Automation: Integrate with other security solutions and automation using APIs. Security Policy Management: Define, optimize, and enforce SentinelOne, Proofpoint, Guardicore, VPN and DLP security policies for different operating systems and device types, balancing security posture with operational requirements. Threat Detection Incident Response: Collaborate with SOC and IR teams to tune SentinelOne, Proofpoint, Guardicore, VPN and DLP detections. Assist in the response to threats and the investigation of security incidents across the environment. Cross-Platform Expertise: Provide deep technical expertise in handling endpoint security for heterogeneous systems, troubleshooting compatibility issues, and optimizing performance. Technical Leadership Documentation: Serve as the subject matter expert for endpoint security, producing architectural diagrams, technical documentation, runbooks, and best practices guides. Collaboration Training: Partner with IT, DevOps, and security teams to ensure seamless integration with existing infrastructure and provide training on SentinelOne, Proofpoint, Guardicore, VPN and DLP usage and endpoint security hygiene. Continuous Improvement: Stay updated on emerging threats, SentinelOne, Proofpoint, Guardicore, VPN and DLP product updates, and industry best practices. Recommend enhancements to improve detection and response capabilities. Required Skills: Minimum 10+ years in cybersecurity roles, with at least 4-6 years architecting and supporting large-scale endpoint and infrastructure protection platforms (preferably SentinelOne, Proofpoint, Guardicore, VPN and DLP). Operating system and Infrastructure Proficiency: Experience with Linux (multiple distros), MacOS and Windows server/client administration Knowledge of Virtual desktop infrastructure (VMware, Citrix, Azure Virtual Desktop) Knowledge of Kubernetes and application deployment. Security Frameworks: Familiarity with NIST, CIS, MITRE ATTCK, and other security standards. Automation and coding: PowerShell, Bash, Python; CI/CD (GitHub/GitLab/Azure DevOps); API integration skills. Experience with the Singularity platform (EPP/EDR/XDR) is preferred. Familiarity with OT/IoT discovery and segmentation; network isolation strategies for branch and edge. Certified in Engineering and Administration areas of SentinelOne, Proofpoint, Guardicore, VPN and DLP, is highly desirable. The candidate must have excellent analytical and problem-solving skills, be self-motivated and work independently Sense of urgency and attention to detail. Should be flexible to work on weekends. Should be flexible to provide coverage in US morning hours. Desired Skills: Familiarity with applying Artificial Intelligence (AI) or Machine Learning (ML) techniques in cybersecurity contexts (e.g., anomaly detection, threat hunting, behavioral analytics, or risk scoring). Experience leveraging AI-enabled tools (such as Copilot for Security, Darktrace, CrowdStrike Charlotte AI, or custom LLM integrations) to enhance detection, response, and automation workflows. Understanding of LLM safety, prompt engineering, or AI governance frameworks (e.g., NIST AI RMF, EU AI Act readiness) is a plus. Exposure to data science fundamental Role Senior Cybersecurity Endpoint Security and Infrastructure Security (SentinelOne, Proofpoint, Guardicore, VPN and DLP security solutions) About the Role: Our team is seeking an experienced technologist to join our Cybersecurity team. Working as a Senior Cybersecurity within CSO, you will work with application owners, business partners, and other CSO teams; to design, implement, and maintain ATT endpoint and infrastructure security strategy. Fo