Network Operations Engineer

Network Operations Engineer III - Client Onsite Work Location: Denver, CO Our Tier 3 NOC Engineer is responsible for advanced troubleshooting, fault isolation, incident escalation, and network optimization within a globally distributed backbone network. This role requires deep expertise in network infrastructure, routing, switching, troubleshooting, and operational support. The Tier 3 Engineer serves as the primary escalation point for Tier 2 engineers, taking ownership of complex cases and driving them to resolution. This position also contributes to process improvements, automation, and monitoring system enhancements to optimize network operations. Key Responsibilities Advanced Network Operations & Troubleshooting: Operate and troubleshoot a globally based Data Center network, including routing and switching devices. Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. Take ownership of escalated cases from other engineers, ensuring a successful resolution. Manage and deliver critical events, communicating clearly and concisely with stakeholders. Support network circuit and hardware troubleshooting, including patch panels, optics, and cabling. Detect and diagnose various error/failure conditions across an array of network device types. Provide hands‑on support for network incidents, collaborating with engineering teams when required. Provide Tier 3 support for all Backbone Network Repair issues, assisting other team members with advanced troubleshooting. Serve as the escalation point-of-contact during business hours, handling troubleshooting, tooling, and process issues. Coordinate with DC facilities teams on maintenance activities impacting network infrastructure. Own incident response processes, including escalations to higher-level support teams when necessary. Rapidly respond to major network incidents, supporting SEV initiation and resolution processes. Monitor the respective BackBone infrastructure ticket queues, ensuring timely and accurate responses to alerts. Track and document incident resolution steps, maintaining accurate logs in ticketing systems. Proactively identify and resolve network performance issues, optimizing existing configurations. Develop and maintain network change documentation, including VLAN, subnet, and DNS modifications. Contribute to the creation of monitors, alerts, dashboards, and performance metrics to drive continuous improvements. Identify areas for automation to improve efficiency. Provide feedback on recurring network issues, refining troubleshooting procedures and SOPs. Support network optimization efforts, participating in capacity planning and scaling initiatives. Document and optimize operational processes and procedures, ensuring alignment with best practices. Follow Return Merchandise Authorization (RMA) processes and coordinate with vendors for hardware replacements. Ensure accurate inventory and documentation in collaboration with audit and asset management teams. Monitor tickets for adherence to SLAs, ensuring prompt issue resolution. Required Qualifications & Skills Technical Skills: Expertise in Data Center networking, including rack installations, routers, switches, VLANs, and routing protocols (BGP, OSPF, MPLS, etc.). Strong experience troubleshooting Layer 1-3 network issues in a large-scale production environment. Hands‑on experience with network monitoring tools (e.g., SolarWinds, Nagios, PRTG, or similar). Advanced knowledge of troubleshooting IP transport/transmission networks and transceivers. Experience capturing and analyzing network traffic for troubleshooting. Proficiency with ticketing systems (e.g., ServiceNow, Jira, or equivalent). Soft Skills & Work Ethic Strong analytical skills, problem-solving mindset, and ability to work autonomously. Excellent communication and documentation skills for incident tracking and resolution. Proven ability to work in a fast‑paced, mission‑critical environment. Strong sense of ownership, urgency, and drive in troubleshooting and resolving network issues. Experience & Education Experience: 8+ years of network operations experience, with a focus on Optical networks. Education: Bachelor’s degree in Computer Science, Networking, or a related field (or equivalent experience). Salary Range $85,120.00 - $134,400.00 USD (Salary) Please note that the salary information provided herein is base pay only (gross); it does not include other forms of compensation which may or may not apply to this specific position, namely, performance-based bonuses, benefits-related payments, or other general incentives - none of which are guaranteed, may be subject to specific eligibility requirements, and are wholly within the discretion of Astreya to remit. Further, the salary information noted above is a range that consists of a minimum and maximum rate of pay for this specific position. Where an applicant or employee is placed on this range will depend and be contingent on objective, documented work-related considerations like education, experience, certifications, licenses, preferred qualifications, among other factors. Astreya offers comprehensive benefits to all Regular, Full-Time Employees, including: Medical provided through UHC (PPO, HSA, Surest options) Medical provided through Kaiser (HMO option only) for California employees only Dental provided through UHC Nationwide Vision provided by UHC Flexible Spending Account for Health & dependent Care Pre-Tax Account for Commuter Benefit/Parking & Transit (location-specific) Continuing Education and Professional Development via various integrated platforms, e.g. Udemy and Coursera Corporate Wellness Program provided by Goomi Group Employee Assistance Program Wellness Days 401k Plan Basic and Supplemental Life Insurance Short Term & Long Term Disability Critical Illness, Critical Hospital, and Voluntary Accident Insurance Tuition Reimbursement (available 6 months after start date, capped) Paid Time Off (accrued and prorated, maximum of 120 hours annually) Paid Holidays Any other statutory leaves, paid time, or other ancillary benefits required under state and federal law Astrey is a global IT managed services provider dedicated to creating technology solutions that are reliable and human‑centered. We partner with the world’s most innovative organizations to optimize modern IT environments across the digital workplace, cloud, data, AI, and enterprise platforms. Our people are our strength. Across regions and roles, Astreyans bring deep expertise, curiosity, and a commitment to excellence. We believe great technology starts with great humans, which is why we invest in learning, collaboration, and career growth. At Astrey, transparency, accountability, and trust guide how we work with each other and our customers. We foster an inclusive culture where diverse perspectives are valued and everyone has the opportunity to make an impact. Join us to build solutions that matter and shape the future of IT together. Onwards and upwards! #J-18808-Ljbffr