Senior Network Engineer (Global Backbone & Datacenter)

At i3D.net, we provide world-class global coverage with one of the most interconnected networks in the world. Our solutions focus on low latency, zero packet loss, and unmatched scalability, enabling seamless experiences for millions of users worldwide. With dedicated support, bespoke solutions, and cutting-edge technology, we deliver reliable, cost-efficient infrastructure that empowers game developers and businesses to scale effortlessly. Partnering with major names like Nvidia, DuckDuckGo, and Ubisoft, we are shaping the future of gaming and network technology.

Why your role matters

As a Senior Network Engineer at i3D.net, you’ll be hands-on in building and supporting a global network infrastructure from our office in Atlanta, that spans both service provider backbone and high-performance datacenter environments. You’ll work with Juniper hardware, automation tools like Ansible, and smart monitoring platforms like Kentik to keep traffic flowing smoothly worldwide. You’ll be part of a 20-person team that values doing things right - automated, secure, and always evolving.

What you’ll be doing

• Implementation: Deploy and maintain network configurations using automation tools like Ansible and Netbox.

• Operations: Troubleshoot and resolve issues across backbone and datacenter environments, from hardware to protocol layers.

• Monitoring & Capacity: Use tools like Kentik to monitor traffic, identify bottlenecks, and assist in capacity planning.

• Documentation: Keep network documentation and diagrams up to date for operational clarity and team alignment.

• Security: Support DDoS mitigation and help enforce network security policies and practices.

• Collaboration: Work closely with architects, product teams, and other engineers to support network projects and customer requirements.

• Automation: Assist in automating network tasks and workflows to reduce manual effort and increase reliability.

• Customer Support: Working in an on-call rotation, collaborating with senior engineers on customer escalations and delivering expert-level troubleshooting when needed.

Tech stack

At i3D.net, you’ll work with:

• Hardware: Juniper MX, QFX, SRX, EX; legacy includes Mellanox, Cumulus, Brocade.

• Protocols: BGP, IS-IS, OSPF, EVPN-VXLAN, MPLS, L2/L3 VPNs.

• Automation: Ansible, Python, JAML.

• Tooling & Integration: Netbox, Kentik, REST APIs.

• DCI: ADVA & Adtran DWDM, Coherent Optics, metro connectivity.

• Security: Custom DDoS mitigation, traffic filtering, and threat detection.

What success looks like in the first year

• You have successfully contributed to network upgrades and datacenter expansions in close collaboration with one of our network architects.

• You’ve contributed to a better automation framework that improves delivery speed and reliability.

• You’re a trusted go-to for technical input in both datacenter and backbone projects.

• Your ideas and improvements have been adopted by peers and documented for others to build on.

• You’ve helped make the team stronger through knowledge sharing, mentoring, and hands-on support.

About You:

• Experience: 5–7 years in network engineering, preferably in ISP or datacenter environments.

• Network Skills: Solid knowledge of BGP, OSPF, IS-IS, EVPN-VXLAN, and MPLS; hands-on with Juniper hardware.

• Automation: Experience using Ansible and Python for network changes and small-scale automation tasks.

• Tooling: Expert at using Netbox and comfortable writing, improving and maintaining scripts, and traffic monitoring tools like Kentik and Grafana

• Troubleshooting: You’re methodical in solving hardware and routing issues, from cable to config.

• Linux Knowledge: Confident working in Linux environments for troubleshooting and scripting.

• Broader Tech Insight: Familiar with storage, virtualization, and cloud fundamentals.

• Communication: Fluent in English, with the ability to clearly explain technical issues to others.

• Certifications: JNCIP-SP, JNCIP-DC, or similar mid-level certifications are a plus;

• Remote vs Onsite: This is a hybrid position with onsite work required at our Atlanta office (2 days a week). You are either based near Atlanta or open to relocating, and we can support your move. Candidates must be authorized to work in the United States.

Why join us?

• Global Exposure: We operate our own international backbone network, with a presence in over 60 locations worldwide.

• State-of-the-Art Technology: Work with cutting-edge service providers and data center equipment.

• Competitive Perks: Enjoy great pay, an annual bonus, 15 vacation days (excluding national holidays), travel allowance, and a premium-free pension.

• Skill Development: Level up with career guidance and education reimbursement.

• Gaming Perks: Get lifetime access to Ubisoft’s game library and two free games every year.