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Sr Network Design Engineer Jobs in Colorado (NOW HIRING)

Network Design Engineer

Aurora, CO · On-site

$73K - $132K/yr

The Digital Modernization Sector at Leidos has an opening for a Design Engineer (Campus Area Network/Local Area Network (CAN/LAN)) to support our customer's global enterprise networks. The CAN/LAN ...

Network Design Engineer

Aurora, CO · On-site

$92K - $166K/yr

Our team is completely replacing a global enterprise network while providing design, engineering, and transition for a wide range of customer network requirements. This is a unique and rare ...

Network Design Engineer

Aurora, CO · On-site

$73K - $132K/yr

The Digital Modernization Sector at Leidos has an opening for a Design Engineer (Campus Area Network/Local Area Network (CAN/LAN)) to support our customer's global enterprise networks. The CAN/LAN ...

NewGen Technologies has an opening for a Design Engineer (Campus Area Network/Local Area Network (CAN/LAN)) to support our government customer's global enterprise networks. The CAN/LAN service ...

Senior Network Engineer

Colorado Springs, CO · On-site

$100K - $137K/yr

... • Design and enhance segmented network architectures supporting: CMMC-aligned environments ... senior network engineering resource within the IT organization • Collaborate across:

Design and enhance segmented network architectures supporting: * CMMC-aligned environments ... Serve as the senior network engineering resource within the IT organization * Collaborate across:

Sr. Network Engineer

Thornton, CO · Hybrid

$106K - $145K/yr

ABOUT THE ROLE The Senior Network Engineer is responsible for the design, implementation, and support of the enterprise network infrastructure, ensuring secure, reliable, and high-performance ...

Design and enhance segmented network architectures supporting: * CMMC-aligned environments ... Serve as the senior network engineering resource within the IT organization * Collaborate across:

Sr. Network Engineer

Thornton, CO · Hybrid

$120K - $135K/yr

Overview The Senior Network Engineer is responsible for the design, implementation, and support of the enterprise network infrastructure, ensuring secure, reliable, and high-performance connectivity ...

ABOUT THE ROLE The Senior Network Engineer is responsible for the design, implementation, and support of the enterprise network infrastructure, ensuring secure, reliable, and high-performance ...

Senior Network Engineer

Colorado Springs, CO · On-site

$102K - $140K/yr

General information Job Posting Title Senior Network Engineer Date Thursday, June 18, 2026 City ... Certified as a Cisco Certified Network Professional (CCNP) OR Cisco Certified Design Expert (CCDE ...

Senior Network Engineer

Denver, CO

$107K - $146K/yr

Lead the design and planning of complex network communication systems, producing detailed ... This senior level role requires an experienced engineer capable of designing, implementing ...

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Showing results 1-20

Sr Network Design Engineer information

What are the key skills and qualifications needed to thrive as a Sr Network Design Engineer?

A Sr Network Design Engineer needs deep expertise in network architecture, protocols, and security, often supported by a bachelor's degree in a related field and certifications like CCNP or CCIE. Familiarity with network design tools (such as Cisco Prime or SolarWinds), routing and switching hardware, and network simulation software is essential. Strong analytical thinking, problem-solving, and communication skills help translate business requirements into robust technical solutions. These skills and qualifications are vital for building resilient, scalable networks that support organizational goals and maintain high performance.

What is a Sr Network Design Engineer?

Sr Network Design Engineers are senior-level professionals responsible for designing, planning, and implementing complex network infrastructures for organizations. They analyze business requirements, create detailed network architectures, select appropriate hardware and software, and ensure network performance, security, and scalability. These engineers also troubleshoot advanced issues, mentor junior staff, and stay up-to-date with the latest networking technologies to support evolving business needs.

What are some typical challenges faced by Sr Network Design Engineers when implementing large-scale network solutions?

Sr Network Design Engineers often encounter challenges such as integrating new technologies with legacy infrastructure, ensuring network scalability, and meeting stringent security requirements. Balancing performance, reliability, and cost within the design can also be complex, especially when collaborating with cross-functional teams like security, operations, and architecture. Additionally, they must stay current with rapidly evolving network protocols and best practices, while troubleshooting unforeseen issues during deployment.
What are popular job titles related to Sr Network Design Engineer jobs in Colorado? For Sr Network Design Engineer jobs in Colorado, the most frequently searched job titles are:
What job categories do people searching Sr Network Design Engineer jobs in Colorado look for? The top searched job categories for Sr Network Design Engineer jobs in Colorado are:
What cities in Colorado are hiring for Sr Network Design Engineer jobs? Cities in Colorado with the most Sr Network Design Engineer job openings:
Infographic showing various Sr Network Design Engineer job openings in Colorado as of August 2026, with employment types broken down into 1% Internship, 87% Full Time, 8% Part Time, and 4% Contract. Highlights an 84% Physical, 5% Hybrid, and 11% Remote job distribution.

Network Design Engineer

Leidos

Aurora, CO • On-site

$73K - $132K/yr

Full-time

Re-posted 2 hours ago


Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 151 frontline employees who took The Breakroom Quiz

77th of 485 rated business services


Job description

The Digital Modernization Sector at Leidos has an opening for aDesign Engineer (Campus Area Network/Local Area Network (CAN/LAN))to support our customer's global enterprise networks. The CAN/LAN service network architecture provides solutions for modernizing network components while supporting service delivery for customer requirements in a mission-focused operational enterprise. Our team is completely replacing a global enterprise network while providing design, engineering, and transition for a wide range of customer network requirements. This is a unique and rare opportunity to build and transition critical operations to a modern service provider network architecture.

The job duties are as follows:

  • Interpret customer requirements and apply standard design approaches for service delivery. Fully document designs with diagrams, bill of materials, cabling sheets, configurations, and other supporting documents.

  • Use our private test lab to evaluate new technologies and capabilities, test proposed changes to production networks, and recreate troubleshooting scenarios to support the production enterprise network.

  • Schedule maintenance windows for migrating user connections from legacy to the modern infrastructure transition services with little to no impact on critical data flows.

  • Provide technical expertise to Operations engineers and technicians, supporting fault isolation and resolution. Solve tough problems with innovative and scalable solutions.

  • Develop secure network designs including configurations that align with Defense Information Security Agency (DISA) Security Technical Implementation Guides (STIGs) and enterprise policies. Obtain Authority to Operate (ATO) for new devices, software, and capabilities.

  • Supervise (not manage) other network support specialists to plan, coordinate, and implement network services.

  • Develop and improve design products, processes, and systems for our team to work efficiently and effectively.

  • Although this position is focused on CAN/LAN, this opportunity offers the ability to learn and work on Multiprotocol Label Switching (MPLS) Wide Area Networks (WANs).

Basic Requirements

  • Required Clearance: TS/SCI with Poly

  • Candidate must have 10 years of experience that can be a combination of work history and education. This equates to a Doctorate and 3 years, master's and 4 years, bachelor's and 6 years, associates and 8 years or HS diploma and 10 years.

  • 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 implementation.

  • Prior responsibility for production network hardware configurations for Cisco, Brocade, and/or Juniper.

  • Hands-on experience implementing and troubleshooting standard routing protocols in a production network, such as Open Shortest Path First (OSPF) or Border Gateway Protocol (BGP)

  • Hands-on experience implementing and troubleshooting standard switching and trunking protocols in a production network, such as Virtual Local Area Networks (VLANs), 802.1q, and port-channels.

  • Network engineering and design experience specific to CAN/LAN. Experience should include application of industry standards, developing configurations, and integration of solutions into production environments.

  • Network engineering and design experience with MPLS WANs, network management tools, and firewalls.

  • Expert knowledge of routing and switching protocols and the ability to demonstrate knowledge through briefings and documentation. Extensive BGP experience a plus.

  • Cisco Certified Network Professional (CCNP) or equivalent knowledge.

  • Initiative and disciplined to work unsupervised as part of a network engineering team. Experience establishing process, developing documents, and organizing repositories a plus.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:July 24, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $73,450.00 - $132,775.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.


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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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