Network Engineer (DDI, Load Balancer & GTM)

Overview

We are seeking an experienced Network Engineer specializing in DDI (DNS, DHCP, IPAM), Load Balancing, and Global Traffic Management (GTM) to design, implement, and support enterprise-scale network infrastructure. This role is critical in ensuring the availability, scalability, and performance of mission-critical applications across distributed environments.

Key Responsibilities

DDI (DNS, DHCP, IPAM)

• Design, deploy, and manage enterprise DDI solutions, with a focus on reliability and scalability.
• Maintain highly available and resilient DNS infrastructure.
• Diagnose and resolve DNS-related issues, optimizing resolution performance.
• Oversee IP address allocation and maintain accurate IPAM documentation.
• Perform system upgrades, patching, and lifecycle management of DDI platforms.

Load Balancing (Application Delivery)

• Configure and administer load balancers to support application delivery.
• Implement traffic distribution and optimization strategies.
• Manage SSL/TLS certificates, including installation, renewal, and troubleshooting.
• Configure health checks, persistence, and SSL offloading.
• Troubleshoot application performance and connectivity issues.
• Handle upgrades, patching, and lifecycle management of load balancing devices.

Global Traffic Management (GTM)

• Design and implement GTM solutions to support global application availability.
• Optimize traffic routing across multiple data centers or regions.
• Ensure seamless failover and business continuity.
• Configure Wide IPs (WIP), DNS zones, and pool health monitoring.
• Troubleshoot GTM and DNS resolution issues.
• Perform upgrades, patching, and lifecycle management of GTM systems.

Required Skills & Experience

• 7+ years of experience in network engineering with a focus on DDI and load balancing technologies.
• Strong hands-on experience with Infoblox DDI platforms.
• Expertise with load balancing technologies, particularly F5 (LTM & GTM/DNS).
• Solid understanding of DNS, TCP/IP, HTTP/HTTPS, and core networking concepts.
• Experience managing SSL/TLS, certificates, and related security protocols.
• Familiarity with high availability (HA) and disaster recovery (DR) architectures.

Preferred Qualifications

• Relevant certifications (e.g., F5 Certified, Infoblox Certified).
• Experience with cloud platforms such as AWS and/or Azure, including DNS and load balancing services.
• Knowledge of automation and scripting (Python, PowerShell, Ansible).
• Exposure to DevOps practices and CI/CD pipelines.