Network Engineer Sr - Greenville SC
Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 11, 2026. Lockheed Martin scores A on the Alion truth index.
Standard Job Description
Network Engineer Sr - Greenville SC
Lockheed Martin's ITxn NetOps team is hiring a Senior Network Engineer to support Aero and other Business Areas unclassified network operations in Greenville, South Carolina.
What You Will Be Doing:
In this role, you will support Lockheed Martin's corporate-wide network infrastructure as well as acting as a seasoned Network Administrator providing operational, sustainment, and remediation activities to meet customer regulations and compliance directives. You will ensure that the LM networks and IT systems are managed, controlled, and updated in a manner consistent with company policies and procedures. This includes supporting routine updates, major upgrades, and on-going maintenance and support of the network infrastructure switches, and network equipment. Work includes wired and wireless devices, solving complex switching issues, building and maintaining network diagrams, presenting changes to the appropriate boards, coordinating new installations and technical refreshes, and remote support of various related Aero sites.
As a team member of the ITxn NetOps team, this position applies established and innovative technologies to meet service and customer commitments for our Aero customer. You will support break/fix incidents and Service Central project work within the enterprise, the campus, and surrounding facilities. Additionally, you will promote adherence to all ITxn standards and process and procedures, and best practices of all ITxn managed and controlled network assets.
Further Information About This Opportunity:
This role is fully onsite in Greenville, South Carolina and supports several remote sites. It will include some off-shift hours, weekends, and occasional travel. The position also supports a 24 X 7 weekly on-call rotation schedule. US Citizenship with eligibility for Secret Clearance is required.
Designs and plans network communications systems. Provides specifications and detailed schematics for network architecture. Provides 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. Conducts testing of network design. Maintains 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.
Basic Qualifications
- Experience supporting network infrastructure
- Experience with configuration of Cisco network devices (switches, routers, access points) and upgrading iOS.
- Experience/familiarity with Cisco switch installation, maintenance, and removal.
- Cisco Certified Network Associate or equivalent experience in the industry.
- Networking troubleshooting skills in enterprise environments.
- Familiarity / understanding of TCP/IP, IP configuration, peer-to-peer networking and IP addressing and subnetting.
- Self sufficient networking expertise with ability to work remotely or on site as necessary.
- Familiarity with network diagram creation using Visio.
- Ability to create and present executive-level briefings.
- Must be able to support a rotational 24x7 on-call support model.
- Must be able to lift 35 pounds.
- Must be able to walk and stand for extended periods of time.
- US Citizenship with ability to obtain a Secret clearance
Desired Skills
- CCNP certification.
- Security+, CASP+, or CISSP certification.
- Hands-on exposure and experience related to network troubleshooting and fault isolation.
- Network Access Control mechanisms like Identity Services Engine experience.
- Knowledge of fiber infrastructure, including patching and long-runs.
- Familiar with Service Central or Service Now
- Experience managing networks, network management tools, and network monitoring tools.
- Active Secret clearance or higher
Pay Information
Full-Time Salary Range: $85300.00 - $158300.00
At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally.
The salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.
- Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
- For (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.