Network Engineer III

Job Description Job Description About Applied Digital:At Applied Digital, we are the epicenter of AI innovation, crafting cutting-edge data center solutions tailored for the demands of high-performance computing. Designed from the ground up to support AI and machine learning workloads, our infrastructure is the backbone of tomorrow's technological advancements, including AI-driven video and generative platforms.We are:Forward-Thinkers: With a keen eye on current market trends and future innovations, we adapt swiftly and lead technological evolution.Resilient: We navigate complex challenges and emerge stronger, delivering robust and reliable solutions for industry pioneers.Innovative Designers: Leveraging the latest technologies, we create visionary solutions that redefine industry standards.At Applied Digital, we are committed to solving intricate problems, advancing business initiatives, maximizing operational efficiency, and reducing our carbon footprint. We are a team of resilient, forward-thinking innovators driving the AI revolution.Position Summary:As a Network Engineer III, you will serve as a senior technical expert and primary engineering driver for our enterprise network infrastructure. In this role you will own critical network platforms and domains, lead complex design and implementation efforts, and provide technical leadership to junior and mid-level engineers. Juniper is our primary networking platform, and deep JunOS expertise is central to this role. You will operate with strong autonomy, choosing your approach and driving execution across high-impact projects and ambiguous problem spaces.Key Responsibilities:Own and operate critical network platforms and domains with full technical accountabilityDesign, implement, and optimize advanced routing and switching solutions across enterprise infrastructureLead troubleshooting efforts for complex and ambiguous network issues, including major root cause analysis initiativesArchitect network security solutions ensuring robust posture and compliance with industry standardsLead network change management processes for high-impact or high-risk changesMentor and develop Engineer I and II team members through technical coaching and knowledge sharingCollaborate with cross-functional teams on infrastructure projects and technology evaluationsDevelop and maintain comprehensive network documentation, standards, and best practicesParticipate in capacity planning, performance optimization, and strategic technology evaluationParticipate in on-call rotation for critical infrastructure and occasional off-hours maintenance windowsTravel – 30%Routing & SwitchingDesign and implement advanced routing solutions using ISIS, OSPF, and BGP in large-scale production environmentsExpert-level configuration and troubleshooting of Juniper MX-series routers and EX/QFX-series, and Cisco.Design and operate switching infrastructure using MP-BGP EVPN, VXLAN, VLANs, spanning tree, and link aggregationLead RCAs for major routing and switching incidents and drive systemic improvements to prevent recurrenceFirewall & SecurityDesign and implement enterprise security solutions across Juniper SRX and Fortinet platformsLead security architecture initiatives including network segmentation strategy and ACL designServe as technical escalation point for complex firewall and security incidentsInfluence and improve team-wide security standards, patterns, and documentationAutomation & ScriptingDevelop and maintain production-grade automation solutions using Python, Ansible, and vendor toolingLead the design and implementation of automation frameworks that improve consistency and scalabilityEvaluate and introduce new automation technologies and advocate for adoption where appropriateAct as a technical resource and coach for Engineer I/II team members building automation skillsBasic Qualifications:10+ years of hands-on experience designing, implementing, and troubleshooting enterprise networksDeep expertise with Juniper MX-series routers, EX/QFX-series switches, SRX/Fortinet firewalls in large production environmentsExtensive production experience with ISIS, OSPF, and BGP routing protocols at scaleExpert knowledge of MP-BGP EVPN, VXLAN, VLANs, spanning tree, and link aggregationDeep expertise with enterprise firewalls including Juniper SRX and Fortinet appliancesJNCIE-ENT, JNCIE-SP, JNCIP, CCIE-level certification required; candidates without certification must demonstrate verifiable equivalent production experienceProficiency in network automation using Python, Ansible, or comparable toolingExcellent documentation skills with ability to create clear technical diagrams and runbooksStrong communication skills with ability to explain complex technical concepts to technical and non-technical audiencesExperience with Juniper Mist, SD-WAN, cloud networking (AWS/Azure/GCP), or data center spine-leaf architectures a plusPlease note that Applied Digital is currently unable to sponsor new applicants for employment authorization or provide immigration-related support for this position. This includes, but is not limited to, visa categories such as H-1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, E-2, E-3, L-1, O-1, and any Employment Authorization Documents (EADs) or other work authorizations that require employer sponsorship.Physical Requirements:Able to remain in a seated position for an extended period and to lift and carry up to 15 lbs. (office manuals, case notebooks, case files, case materials, standard boxes, report binders, etc.) as needed.The company has reviewed this job description to ensure that essential functions and basic duties have been included. It is intended to provide guidelines for job expectations and the employee's ability to perform the position described. It is not intended to be construed as an exhaustive list of all functions, responsibilities, skills and abilities. Additional functions and requirements may be assigned by supervisors as deemed appropriate. This document does not represent a contract of employment, and the company reserves the right to change this job description and/or assign tasks for the employee to perform, as the company may deem appropriate.This job description in no way states or implies that these are the only duties to be performed by the employee(s) incumbent in this position. Employees will be required to follow any other job-related instructions and to perform any other job-related duties requested by any person authorized to give instructions or assignments. All duties and responsibilities are essential functions and requirements and are subject to possible modification to reasonably accommodate individuals with disabilities. To perform this job successfully, the incumbents acknowledge that they possess the skills, aptitudes, and abilities to perform each duty proficiently. Some requirements may exclude individuals who pose a direct threat or significant risk to the health or safety of themselves or others. This document does not create an employment contract, implied or otherwise, other than an “at will” relationship.The company is an Equal Opportunity Employer, drug free workplace, and complies with ADA regulations as applicable.