Job Description:

Role – Senior Cybersecurity – Endpoint Security (SentinelOne)

Location: Hyderabad / Bengaluru

About the Company:

Join AT&T and reimagine the communications and technologies that connect the world. Our Chief Security Office ensures that our assets are safeguarded through truthful transparency, enforce accountability and master cybersecurity to stay ahead of threats. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won’t just imagine the future-you’ll create it

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 AT&T SentinelOne security strategy and infrastructure. 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 AT&T's business needs and security best practices.

Roles & Responsibilities:

The Individual in this role will

• Architect and Lead SentinelOne Deployments:
  Design and implement SentinelOne security solutions for a wide range of 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 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 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 usage and endpoint security hygiene.

• Continuous Improvement:
  Stay updated on emerging threats, SentinelOne 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 protection platforms (preferably SentinelOne).

• 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 ATT&CK, and other security standards.

  • Automation and coding: PowerShell, Bash, Python; CI/CD (GitHub/GitLab/Azure DevOps); API integration skills.

• SentinelOne: Experience with the Singularity platform (EPP/EDR/XDR) is preferred.

  • Familiarity with OT/IoT discovery and segmentation; network isolation strategies for branch and edge.

• SentinelOne Certified Administrator/Engineer, or equivalent are 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:

• Excellent communication skills including metrics/performance documentation/presentation, technical drawing/architecture origination and modification

• Operates well under pressure and urgent circumstances

• Self-reliant and diligent in follow-through for assigned tasks

• Ability to work with a geographically disperse team

• Engaged collaborator, contributor and team player

• CISSP, CISM, SANS GIAC or relevant cybersecurity

• Experience working in an environment where coordination with multiple teams is essential to success

• Ability to prioritize individual/group work in a high-stress and time-bound environment

• Bachelor’s / Master's degree in Information Systems, Engineering, Mathematics. Computer Science or Cyber Security or equivalent experience.

Weekly Hours:

40

Time Type:

Regular

Location:

IND:AP:Hyderabad / Argus Bldg 4f & 5f, Sattva, Knowledge City- Adm: Argus Building, Sattva, Knowledge City

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Job ID R-82426 Date posted 09/10/2025