Network Engineer / Level 3

Reference: 730516BRPosted: 2026-07-21Location: Boulder, ColoradoSalary: $85,500 - $150,765Clearance: TS/SCICompany: Lockheed MartinDescription:WHO WE ARELockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering.LM SPACE: WHAT WE'RE DOINGReady to make a difference? Join a team where your network expertise will keep the sensors that watch the sky running flawlessly, give our warfighters the split‑second advantage they need, and help keep the world safe. SBIRS and the Next‑Gen GEO OPIR ground stations form the backbone of the United States’ missile‑warning architecture. By delivering near‑real‑time, high‑confidence detection of ballistic missile launches and other hostile trajectories, these systems provide life‑saving early warning for the warfighter, enable rapid decision‑making, and support cueing of defensive interceptors and command‑and‑control assets. Your work will directly protect troops, allies, and critical infrastructure worldwide.THE WORKLockheed Martin is seeking a highly skilled level 3 Network Engineer with an active Secret clearance to work from our Boulder, CO, location. This is a MID CAREER (level 3) ROLE where candidates typically require 3+ years of professional experience and a BS degree.The Overhead Persistent Infrared (OPIR) Infrastructure Team is seeking a Network Engineer to design, build, and sustain the ground‑station platform that supports both SBIRS and the Next‑Gen GEO OPIR ground stations. In this role you will work closely with software, security, and mission engineers to deliver ultra‑reliable, secure, and scalable ground‑systems that enable continuous infrared surveillance and missile‑warning capabilities for legacy and next‑generation satellite constellations.As Network Engineer you will:• Design and plan network communications systems. • Provide specifications and detailed schematics for network architecture. • Provide specific detailed information for hardware and software selection, implementation techniques and tools for the most efficient solution to meet business needs, including present and future capacity requirements. • Conduct testing of network design. • Maintain technical expertise in all areas of network and computer hardware and software interconnection and interfacing, such as routers, multiplexers, firewalls, hubs, bridges, gateways, etc. Evaluates and reports on new communications technologies to enhance capabilities of the network.If you think this describes you and you are looking for an opportunity to grow and challenge yourself then we would love for you to apply!WHY JOIN USOpportunity for Impact: Join a team that is at the forefront of innovation in the aerospace and defense industry and make a significant impact on the success of our organization.Professional Development: Take advantage of unparalleled opportunities for growth and advancement within Lockheed Martin, with access to world-class training and development programs.Collaborative Culture: Work alongside some of the brightest minds in the industry who share your passion for excellence and who are committed to supporting each other's success.Competitive Benefits: Lockheed Martin employees play an active role in strengthening the quality of life where we live and work by volunteering more than 850,000 hours annually. Here are some of the benefits you can enjoy:• Medical• Dental• 401k• Paid time off• Work/life balance• Career development• Mentorship opportunities• Rewards & recognitionWe care about our employees and offer a generous benefits package: 401K, PTO, and work/life balance and more.Basic Qualifications:+3 years of Network Engineering experience i.e. design, implementation, troubleshooting of complex network infrastructure• Deep knowledge of OSI/TCP/IP Models, Layer 2/3 technologies (VLAN, OSPF, BGP), and hands on experience with either Cisco/Juniper Devices (both preferred)• Familiarity with one or more of the following:DISA STIGs, COMSEC, and/or TACLANEs• Active Security+ CE (or equivalent IAT Level II) required or ability to obtain within 60-90 days.• Active Secret clearance is required prior to start and ability to obtain TS/SCI clearanceDesired Skills:• Multi‑vendor switching/routing expertise (Juniper, Cisco) with certifications i.e. CCNA, JNCIA. or higher• Experience with SDN such as Cisco ACI or Juniper Apstra• Experience with network automation tools such as ansible• Exposure to virtualization technologies i.e. VMware, vSAN• Ability to work effectively in a collaborative, agile scrum environment.• Proficient with Microsoft PowerPoint and Visio.Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: TS/SCIOther Important Information You Should KnowExpression of Interest: 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.Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.Work Schedules: 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.Schedule for this Position: 9x80 every other Friday offPay 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.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.Experience Level: Experienced ProfessionalBusiness Unit: SPACERelocation Available: NoCareer Area: Systems Engineering: Network Systems EngineersType: Full-TimeShift: First