DNS-GSLB Security Engineer

Cellco Partnership; India; Hybrid; INR 11,299,000 - 16,949,000; Full time

Job summary

Verizon seeks a Cybersecurity Engineer to evolve security standards across Network, Cloud and Application environments in a hybrid-cloud setting. You will design next‑gen attack surface management, integrate DNSSEC, encrypted traffic steering, and GSLB to ensure continuous, automated threat mitigation across global infrastructure.

The role includes defending against ransomware, phishing, and DDoS events, building playbooks, and collaborating in Purple Team exercises, with a strong emphasis on

Qualifications

• Bachelor's degree or four or more years of work experience.
• Four or more years of relevant experience.
• Hands-on experience configuring and securing Citrix Load Balancers and SLB policies.
• Experience managing Global Server Load Balancing architectures for multi-region failover.
• Production-level experience managing enterprise DNS infrastructures with DNSSEC, zone delegations, and resolver hardening.

Responsibilities

• Support daily operations with internal/external stakeholder engagement.
• Implement fault-tolerant hybrid-cloud transitions meeting availability and performance objectives.
• Identify and solve technology gaps in security design, architecture, and implementation.
• Improve network visibility and telemetry for detection and response capabilities.
• Create and maintain security standards, policies, and procedures.
• Build and refine playbooks and response runbooks for high-impact scenarios.
• Participate in Purple Team, Threat Hunt, and tabletop exercises.
• Support security control assessments and close gaps found during incidents or hunts.

Skills

Python

Bash

UNIX/Linux

DNSSEC

TCP/IP

Cloud security

Education

Bachelor's degree or 4+ years of work experience

Tools

Citrix NetScaler

SLB policies

GSLB architectures

Infoblox/IPControl/BIND

Job description

When you join Verizon You want more out of a career. A place to share your ideas freely - even if they're daring or different. Where the true you can learn, grow, and thrive. At Verizon, we power and empower how people live, work and play by connecting them to what brings them joy. We do what we love - driving innovation, creativity, and impact in the world. Our V Team is a community of people who anticipate, lead, and believe that listening is where learning begins. In crisis and in celebration, we come together - lifting our communities and building trust in how we show up, everywhere & always. Want in? Join the #VTeamLife.

Verizon Global Infrastructure (VGI) seeks a highly motivated Cybersecurity Engineer to continuously evolve security standards. This critical role involves hardening Verizon's Network, Cloud, and Application environments within the GTS ecosystem by converting complex security challenges into robust, enterprise-grade solutions. You will be instrumental in redefining attack surface management by designing a next-generation naming and delivery ecosystem. By integrating DNSSEC, encrypted traffic steering, and GSLB, you will bridge the gap between on-premise and public cloud platforms to ensure seamless, "always-on" security and automated threat mitigation across our global infrastructure.

What we're looking for...

• Supporting daily operations, including internal/external stakeholder engagement and dotted-line leadership.
• Executing on the transition to hybrid-cloud environments by implementing fault-tolerant failover strategies that meet rigorous business availability and performance objectives.
• Identifying and solving for technology gaps in the design, architecture, and implementation of appropriate security solutions.
• Driving continuous improvement of network visibility and telemetry collection to strengthen detection and response capabilities
• Creating and maintaining technical standards, policies, and procedures to ensure smooth and error-free operations.
• Building and refining playbooks and response runbooks, ensuring repeatable workflows for high-impact scenarios (ransomware, phishing, insider threat, DDoS, etc.)
• Participating in Purple Team, Threat Hunt, and cyber security tabletop exercises.
• Supporting regular security control assessments validating configuration effectiveness and closing gaps discovered during incidents or hunts
• Promoting an environment of collaboration and individual accountability when it comes to problem-solving, decision-making, and process improvements

You'll need to have:

• Bachelor's degree or four or more years of work experience.
• Four or more years of relevant experience required, demonstrated through work experience and/or military experience.
• Four of more years of direct, hands-on experience configuring, troubleshooting, and securing Citrix Load Balancers (NetScaler) and server load balancing (SLB) policies
• Proven track record engineering and maintaining Global Server Load Balancing (GSLB) architectures for multi-region active-active/active-passive failover and traffic distribution.
• Production-level experience managing enterprise DNS infrastructures (Infoblox, IPControl, or BIND) with a solid foundation in DNSSEC, zone delegations, and recursive resolver hardening.
• Strong command-line and systems administration experience within enterprise Linux environments, including networking daemons, service debugging, and TCP/IP stack tuning.
• Proficiency in Python and Bash to automate operational workflows, API-driven network tasks, and infrastructure configurations.

Even better if you have one or more of the following:

• Expert in leading end-to-end digital transformations and hybrid-cloud connectivity (AWS, Azure, GCP), specializing in high-availability (HA), disaster recovery (DR), and resilient application delivery.
• Deep expertise in building CI/CD pipelines for network infrastructure using Python, Go, and Ansible to automate lifecycle management and configuration auditing.
• Experienced in deploying ML-powered AIOps platforms for predictive monitoring, automated anomaly detection, and self-healing recovery workflows.
• Advanced knowledge of securing management traffic and data-in-transit via Next-Gen Firewalls (NGFW), Proxies, VPNs, and robust encryption standards (IPsec, TLS).
• Senior-level proficiency in UNIX/Linux environments and a mastery of core industry standards including TCP/IP, HTTP/S, and IAM frameworks.
• Strong alignment with NIST, ISO 27001, and CIS benchmarks to ensure security integrity across cloud-native and hybrid environments.
• Industry Certifications: CISSP, CCSP, CCIE Security, CCE-N, or equivalent expert-level cloud networking credentials.

Where you'll be working

In this hybrid role, you'll have a defined work location that includes work from home and assigned office days set by your manager.

Scheduled Weekly Hours

40

Equal Employment Opportunity

Verizon is an equal opportunity employer. We evaluate qualified applicants without regard to race,