Demo

Network Engineer, Sr / TS/SCI Poly / Onsite: CO

Jobs via Dice
Littleton, CO Intern
POSTED ON 3/30/2026
AVAILABLE BEFORE 4/28/2026
Job Description

This is a critical position supporting the Space Systems Company in Denver, CO working directly with our internal and external customers. This position will have the responsibility for installing, configuring, and maintaining the Secure Communications LAN, WAN and Voice systems. Candidates will work closely with team members, vendors and will work with Administrative and End user teams to ensure connectivity of primary and backup networks in support of LOB programs. After- hours support is periodically required and some non-standard work shifts might be required to support periodic system tests, baseline promotions, and other non-critical mission activities.

There is no telecommuting available or this position. This position is responsible for, but not limited to:

Servicing multiple government and program users involving design, development installations, maintenance, operations, control, and documentation

Perform installations and upgrades to Cisco and Juniper operating systems in accordance with established policies, procedures, and agreements

Participate in customer reviews requiring system impacts or temporary outages

Participate in customer system testing

Work closely with System Administration staff to optimize connectivity solutions

Basic Qualifications

Active TS/SCI W/ Poly required for this role

Demonstrate a strong working knowledge of network engineering disciplines such as:

Knowledge of general networking principles

Experience with Routers, switches, and firewalls

Knowledge of switching and routing protocols like spanning-tree, OSPF, and BGP

Familiarity with NSA type 1 encryptors

Perform diagnostics and troubleshoot network issues

Design, installation, configuration, and maintenance of Secure Communications LAN, WAN and voice systems

Experience with network monitoring and providing notifications of issues on a daily basis

Determine root causes of network issues and recommend strategies to prevent recurrences

Works well in a team environment

Desired Skills

Current Security certificate or better

Knowledge of patching, Firmware, and IOS upgrades

Knowledge of SAN environments with multiple OS's (Linux, Unix, and Windows)

Knowledge of Cisco Call Manager

Knowledge of Network Access Control (NAC) for 802.1X with Cisco Identity Services Engine (ISE).

Knowledge of DNS-DHCP-IPAM (DDI) with Infoblox and Active Directory

Familiarity with Cisco IOS/IOS-XE/NXOS and JunOS

Experience with network management platforms like SolarWinds

Involvement with PDS systems

EEO

Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.

The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.



  • At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.

    With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.

    If this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.

    Other Important Information

    By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.

    Work Schedule Information

    Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.

    National Pay Statement

    Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $85,500 - $150,765. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.

    Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.

    (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.

    This position is incentive plan eligible.

    Premium Pay Statement

    Pay Rate: The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $98,300 - $170,315. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.

    Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.

    This position is incentive plan eligible.

    Salary : $85,500 - $150,765

    If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
    Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

    What is the career path for a Network Engineer, Sr / TS/SCI Poly / Onsite: CO?

    Sign up to receive alerts about other jobs on the Network Engineer, Sr / TS/SCI Poly / Onsite: CO career path by checking the boxes next to the positions that interest you.
    Income Estimation: 
    $87,720 - $106,708
    Income Estimation: 
    $108,098 - $130,480
    Income Estimation: 
    $87,720 - $106,708
    Income Estimation: 
    $108,098 - $130,480
    Employees: Get a Salary Increase
    View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

    Job openings at Jobs via Dice

    • Jobs via Dice Sheridan, WY
    • Dice is the leading career destination for tech experts at every stage of their careers. Our client, Varmoda Tech LLC, is seeking the following. Apply via ... more
    • 9 Days Ago

    • Jobs via Dice Burlington, VT
    • Desktop Deployment Technician (Part-Time - 20 Hours a week) (Contract Role) Overview We are seeking a Desktop Deployment Technician to support a large-scal... more
    • 9 Days Ago

    • Jobs via Dice Georgia, VT
    • Dice is the leading career destination for tech experts at every stage of their careers. Our client, AaraTechnologies Inc, is seeking the following. Apply ... more
    • 9 Days Ago

    • Jobs via Dice Alaska, AK
    • job summary: Enterprise Healthcare client has an immediate opening for a highly motivated Project Manager III to join their dynamic and growing team. All q... more
    • 9 Days Ago


    Not the job you're looking for? Here are some other Network Engineer, Sr / TS/SCI Poly / Onsite: CO jobs in the Littleton, CO area that may be a better fit.

    • Associates Systems LLC Aurora, CO
    • All Qualified candiates will be responded to in 24 hrs or less Active TS/SCI is a must, this effort is on-Site - CI or FSP- POLY Employment type: Full Time... more
    • 27 Days Ago

    • Jobs via Dice Littleton, CO
    • Job Description Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our tea... more
    • 4 Days Ago

    AI Assistant is available now!

    Feel free to start your new journey!