Senior Cybersecurity – Infrastructure Security (Guardicore)

Job Description:

Role – Senior Cybersecurity – Infrastructure Security (Guardicore)

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. The Guardicore Microsegmentation Engineer is responsible for designing, implementing, and managing microsegmentation strategies using Guardicore solutions to enhance network security within the organization's data centers and cloud environments. This role involves collaborating with security, networking, and application teams to segment and protect critical assets, reduce attack surfaces, and improve threat detection and response capabilities.

Roles & Responsibilities:

The Individual in this role will

• Design and implement microsegmentation policies and strategies using Guardicore Centra platform.

• Collaborate with cross-functional teams to identify critical applications and workloads requiring segmentation.

• Analyze network traffic flows and dependencies to develop effective segmentation rules.

• Deploy and manage Guardicore agents across servers and virtual machines in various environments (on-premises, cloud, hybrid).

• Monitor and fine-tune segmentation policies to minimize operational impact while maximizing security.

• Respond to security incidents by leveraging microsegmentation insights to contain threats.

• Develop documentation, runbooks, and best practices for microsegmentation deployment and management.

• Provide training and support to IT and security teams on Guardicore micro-segmentation.

• Stay current with emerging security trends and Guardicore product updates.

Required Skills:

• 10+ years of experience with Guardicore Centra or similar microsegmentation technologies.

• Strong understanding of network security principles, firewalls, and segmentation.

• Knowledge of data center and cloud network architectures.

• Familiarity with Linux and Windows server environments.

• Ability to analyze network traffic and create detailed segmentation policies.

• Experience with security incident response and containment.

• Relevant certifications (e.g., Guardicore Certified Specialist, CISSP, CCNP Security) are a plus.

• Experience with cloud platforms such as AWS, Azure, or Google Cloud.

• Scripting skills for automation (e.g., Python, PowerShell).

• Understanding of zero trust security models.

• Experience with VMware virtualization technologies

• Familiarity with routing and switching concepts and equipment.

• Knowledge and troubleshooting skills for Dell servers.

• Understanding of Guardicore Centra platform and API concepts, including integration and automation.

• Familiarity with Windows Active Directory.

• 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:

Time Type:

Location:

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.