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Tier Three Network Engineer Jobs in Colorado (NOW HIRING)

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya Partners

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and elevate critical ...

New

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Astreya

Network Operations Engineer II

Denver, CO · On-site

$72K - $115K/yr

Perform fault isolation and resolution, diagnosing Layer 1-3 network issues. * Take ownership of escalated cases from Tier 1 engineers, ensuring a successful resolution. * Manage and escalate ...

Leidos

Network Design Engineer

Aurora, CO · On-site

$92K - $166K/yr

Must be compliant with DoD 8140 Information Assurance Technical (IAT) Level 2. * Experience specific to network engineering to include Tier III or higher network operations and/or network design and ...

CACI

Network Engineer Tier 2

Denver, CO

Network Engineer Tier 2 Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up ...

COMFORT SYSTEMS

Sr. Tier III O&M Engineer

Aurora, CO · On-site

$92K - $166K/yr

... Tier III operations and maintenance (O&M) engineer to support various WAN and LAN networks. The ... Configure, test, and maintain hardware, networking software, and operating system software.

Fabergent

Service Desk Engineer - Tier 3

Englewood, CO · On-site

Service Desk Engineer - Tier 3 Location: Englewood, CO Duration : Long Term Contract Provide third ... No Cable Modem trouble shooting just network side Track recurring CMTS issues and escalate to ...

Leidos

Sr. Tier III O&M Engineer

Aurora, CO · On-site

$92K - $166K/yr

... Sr. Tier III operations and maintenance (O&M) engineer to support various WAN and LAN networks ... Configure, and test hardware, networking software and operating system software * Review user ...

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Tier Three Network Engineer information

How much does a Tier Three Network Engineer make?

A Tier Three Network Engineer typically earns between $80,000 and $120,000 annually, depending on experience, certifications, and location. They often work with advanced networking tools and may hold certifications like Cisco CCNP or CCIE.

What is a Tier Three Network Engineer?

A Tier Three Network Engineer is a senior-level IT professional responsible for troubleshooting complex network issues, designing network solutions, and supporting network infrastructure. They often work with advanced tools, protocols, and may hold certifications like Cisco CCNP or CCIE, typically operating in a team environment with a focus on network stability and performance.

What are popular job titles related to Tier Three Network Engineer jobs in Colorado?

For Tier Three Network Engineer jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Tier Three Network Engineer jobs in Colorado look for?

The top searched job categories for Tier Three Network Engineer jobs in Colorado are:

What cities in Colorado are hiring for Tier Three Network Engineer jobs?

Cities in Colorado with the most Tier Three Network Engineer job openings:

Tier Three Network Engineer jobs near you
Infographic showing various Tier Three Network Engineer job openings in Colorado as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 11% Part Time, and 6% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution.

Network Operations Engineer II

Denver, CO • On-site

Astreya
IT Services • 501 - 1,000 employees
Learn more about Astreyaexternal

$72K - $115K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 12 days ago

Astreya rating

8.5

Company rating: 8.5 out of 10

Based on 10 frontline employees who took The Breakroom Quiz

Job description

Job Description
Network Operations Engineer II - Client Onsite
Work Location: Denver, CO
Our Tier 2 NOC Engineer is responsible for advanced troubleshooting, fault isolation, incident escalation, and network optimization within a globally distributed data center network. This role requires deep expertise in network infrastructure, routing, switching, troubleshooting, and operational support.
The Tier 2 Engineer serves as the primary escalation point for Tier 1 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 Tier 1 engineers, ensuring a successful resolution.
  • Manage and escalate 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.

Incident Response & Escalation Support
  • Provide Tier 2 support for all Data Center Network Repair issues, assisting Tier 1 engineers 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.

Network Monitoring & Optimization
  • Monitor the DC network 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.

Automation & Continuous Improvement
  • 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.

Process & Asset Management
  • 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
  • Bachelor's degree in Computer Science, Networking, or a related field (or equivalent experience).
  • 5+ years of network operations experience, with a focus on Data Center networks.
  • Certifications preferred:
  • CCNP (Cisco Certified Network Professional)
  • JNCIP (Juniper Networks Certified Internet Professional)
  • ITIL v4 (for incident and service management)

Salary Range
$72,960.00 - $115,200.00 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

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