Technical Support Engineer III

Zayo Group LLC is seeking a Technical Support Engineer III to join its Packet Core Network Commissioning team. In this onsite role in the United States, you will support advanced IP/MPLS core network commissioning and lifecycle activities, working closely with vendors at TAC level to keep services ready and scalable.

The position focuses on implementing and validating carrier-grade technologies, troubleshooting complex infrastructure and software issues, and enabling software-driven network operations through automation and APIs.

What you’ll do

• Implement, commission, and validate new technologies, network architectures, IP/MPLS core infrastructure, and network capacity in line with established engineering standards.
• Provide advanced technical support to Packet Architecture, Packet Engineering, and Reliability Engineering across commissioning, implementation, lifecycle activities, and complex engineering initiatives.
• Perform ongoing technical care for the IP/MPLS core network by identifying and addressing conditions that may impact service readiness, capacity, reliability, or delivery.
• Support network migrations and infrastructure transitions as part of broader core network commissioning and engineering efforts.
• Configure, commission, validate, and troubleshoot complex IP/MPLS infrastructure and services, including routing, MPLS transport, Segment Routing over MPLS, LSPs, SDPs, Layer 2 and Layer 3 services, resiliency, QoS, and traffic-engineering technologies.
• Develop and execute advanced Methods of Procedure (MOPs), maintain engineering and configuration standards, and create or update technical documentation and network designs.
• Support network software lifecycle activities, including software staging and transfer, validation, installation, upgrades, rollback planning, and troubleshooting on production infrastructure.
• Enable Network as a Service (NaaS) and software-driven network operations through automation, APIs, Linux/server environments, application infrastructure, and engineering tools.
• Diagnose and resolve complex challenges across network, hardware, software, configuration, interoperability, and system-level issues, including direct engagement with vendor TAC organizations.
• Provide advanced technical analysis to support root-cause investigations and Reason for Outage (RFO) documentation.
• Carry out mandatory after-hours maintenance and network-change activities for commissioning, augments, upgrades, and approved changes, including task-level tracking and coding.

What you bring

• Minimum five (5) years of service-provider networking or equivalent advanced network engineering experience, with strong knowledge of IP/MPLS routing and switching.
• Computer Science, Engineering, Telecommunications, or related degree (or related military experience) OR equivalent practical experience.
• Demonstrated service-provider networking experience with Nokia NRS II, JNCIP, CCNP, or equivalent.
• Advanced working knowledge of service-provider IP/MPLS networking, including production experience implementing and troubleshooting routing, MPLS transport, Segment Routing over MPLS, LSPs, SDPs, Layer 2/Layer 3 services, resiliency, QoS, and traffic-engineering technologies.
• Direct hands-on experience engineering, commissioning, and troubleshooting carrier-class service-provider networks.
• Experience with Nokia and Juniper routing platforms is preferred; experience with Cisco, Ciena, Adva, or other carrier-grade platforms is valuable.
• Strong troubleshooting skills, including the ability to isolate complex network and system issues and drive resolution with vendor TAC teams.
• Experience with network software lifecycle management, including software transfer, installation, upgrades, rollback, and troubleshooting.
• Working knowledge of Linux-based systems and server environments, including common system and troubleshooting utilities.
• Familiarity with NaaS, network automation, APIs, DevOps tools and practices, and software-driven network operations is preferred; experience supporting server/application stacks for automation platforms is preferred.
• Scripting and automation experience with Bash and Python is strongly preferred.
• Ability to develop, review, and execute advanced MOPs and use scripts and engineering tools to implement network changes safely.
• Ability to support mandatory after-hours maintenance and network-change activities.
• Excellent written and verbal communication skills to coordinate complex technical issues across Packet Engineering, Packet Architecture, Reliability Engineering, and vendor support teams.
• Flexibility in a changing technical and operational environment, along with strong collaboration, judgment, and organization to manage multiple priorities with deadlines.
• Ability to work independently and productively with minimal supervision.

Technologies you’ll work with

• IP/MPLS, MPLS transport, Segment Routing over MPLS, LSPs, SDPs, Layer 2/Layer 3 services, QoS, traffic-engineering technologies
• Methods of Procedure (MOPs), Network as a Service (NaaS), automation, APIs
• Linux, Bash, Python, DevOps tools and practices
• Nokia NRS II, JNCIP, CCNP
• Nokia, Juniper, Cisco, Ciena, Adva, TAC

Compensation & work location

• Location: United States (onsite)
• Pay: USD 23 - 36 per hourly

Benefits

• Excellent Health, Dental & Vision Insurance
• Retirement 401(k) Savings Plan
• Generous paid time off policy including paid parental leave
• This position may be eligible for certain additional benefits such as health insurance, life insurance, disability retirement plans, and paid time off

Work authorization

• This position is not eligible for employment-based visa sponsorship.