Senior Network Systems Engineer

Senior Network Systems Engineer page is loaded## Senior Network Systems Engineer locations:
Durham, North Carolina, United States of America time type:
Full time posted on:
Posted Todayjob requisition :
R1515674

As a
** Senior Network Engineer,
** you participate in the implementation, and support of complex hybrid network infrastructures across global environments. This role demands a strategic mindset and deep technical expertise to deliver high-impact projects that align with enterprise security standards, performance optimization goals, and scalability requirements.  You will help define and drive the evolution of IQVIA’s global network ecosystem transforming it into a programmable, automated, and platform-agnostic infrastructure.

You will be responsible for planning, deploying, documenting, and maintaining both new (SoNIC, Cumulus) and existing (Cisco) network architectures in highly dynamic and secure environments.  A strong understanding of
**** Linux-based systems**,
** network programmability****, and
**** infrastructure-as-code
**** principles will be essential as you help build a globally consistent and scalable network foundation.
** Key Responsibilities
*** Support SDN solutions, focusing on Cisco ACI across multiple data centers.
* Integrate AI-driven network monitoring and predictive analytics.
* Serve as a senior technical advisor to Tier 2 engineers, providing mentorship and consultation.
* Provide expert-level support during major incidents, including root cause analysis and resolution planning.
* Translate Global Network Support (GNS) standards into actionable low-level designs, including hardware quoting and documentation.
* Partner with Mergers & Acquisitions (M&A) and Global Real Estate teams to integrate new acquisitions into IQVIA’s network standards
* Lead network buildouts, office restack implementations, and refresh initiatives
* Lead strategic network projects across departments, regions, and time zones.
* Automate implementations across platforms:  + Generate and deploy F5 configurations, Palo Alto firewall rules, and Cisco ACI policies through Ansible, Python, Terraform, and/or API-driven automation.  + Implement CI/CD pipelines to validate and roll out network and security changes safely and repeatably.
* Implement and support network segmentation strategies for zero-trust architectures and compliance mandates.
* Oversee incident response and escalation workflows, ensuring timely resolution and stakeholder communication.
* Maintain DNS (BIND), IPAM, and domain name services across enterprise environments with automation-first principles.
* Support branch office automation initiatives using Cisco DNA Center and other vendor platforms.
** Required Skills and Expertise
*** Extensive experience with
** software-defined networking
** technologies (Cisco ACI, SoNIC, Cumulus Linux, or equivalent), including the ability to:  + Deploy Cisco ACI fabric including spine-leaf topology, APIC controllers, and policy-based configurations.  + Configure multi-pod and multi-site Cisco ACI environments for scalability and redundancy.  + Implement L4–L7 service insertion using service graphs and contracts.
* In-depth understanding of
** Linux networking****,
** kernel-based switching**,
** and open-source routing stacks (FRR, BIRD, and Quagga).
* Proven experience developing and deploying
** infrastructure-as-code
** for network and security platforms (Ansible, Terraform, Git, YAML, JSON).
* Experience automating configurations and policy enforcement across:  + Cisco ACI and DNA Center  + F5 load balancers (iControl REST, AS3 templates)  + Palo Alto firewalls and Panorama (REST and XML APIs)
* Proficiency in routing and overlay technologies (BGP, EIGRP, VXLAN/EVPN, OSPF, etc) and switching.
* Experience in SDWAN deployments and support.
* Understanding of network segmentation, zero-trust access, and security frameworks.
* Familiarity with cloud networking platforms including AWS Direct Connect, Azure Express Route, and hybrid/on-prem cloud solutions.
* Experience with packet capture analysis, network monitoring, performance tuning, and capacity planning.
* Strong organizational and communication skills, with the…