IT Systems Engineer, Sr / Top Secret / Onsite: KoP, PA

Company: Lockheed Martin
Location: King of Prussia
Posted on: April 3, 2026

Job Description:

Job Description Lockheed Martin Enterprise Operations (EO) is actively seeking an experienced information technology (IT) professional to support the Space business area classified program areas located in Valley Forge, Pennsylvania. Deep expertise in technical leadership, Linux server, Windows server, Storage and network administration are essential elements in providing support for these complex classified environments. The candidate will need a strong understanding of TCP/IP, IT security principles, cost estimating, proactive attitude, strong customer relationship management skills and the ability to work both independently and as part of a larger technical team. Primary job responsibilities include, but are not limited to: designing, estimating, ordering, tracking, installing, configuring, securing, hardening, remediating, testing, upgrading and decommissioning of data center equipment, network switches, virtual servers, physical servers, client workstations and network-attached storage equipment. Application support to program engineers is an essential part of the day-to-day responsibilities that ensures a successful synergy between program deliverables and the underlying IT infrastructure. The selected candidate will be responsible for the ongoing operations, maintenance and continuous improvement of multiple classified IT program environments. This IT professional will ensure that the Space IT systems are managed, controlled and compliant with the Security Technical Implementation Guide (STIG) and the Risk Management Framework (RMF). If you are looking for a hands-on role with the flexibility to learn and apply a wide range of core technical capabilities, this position is for you! This is a non-telecommuting position that requires you to be on-site and includes some off-shift work and occasional weekend activities, though the core schedule is a 4x10 schedule (Tues-Fri). Applicants selected will be subject to a security investigation and will need to meet eligibility requirements for access to classified information. In light of current internal business pressures, priority consideration will be given to qualified candidates who are currently affiliated with the Enterprise Operations’ EBDT (Enterprise Business & Digital Transformation) organization. Basic Qualifications - Current DoD 8570.01-M IAT Level II or III certification (i.e. CompTIA Security, CISSP, etc.), with the ability to maintain that certification throughout the position lifecycle. - U.S. Citizenship is a requirement to work at this facility (No dual citizenship). - Top Secret level security clearance required. - Ability to move, rack, stack and install physical equipment by lifting up to 50 lbs. independently. - Deep expertise in technical leadership, Linux server, Windows server, storage and network administration - Significant experience with TCP/IP, IT security principles, cost estimating - Proactive attitude, strong customer relationship management skills and the ability to work both independently and as part of a larger technical team. - Experience with network-attached storage or storage area networks Desired skills - Bachelors of Science degree from accredited University - Experience with Windows Server user account management, administration and access controls - Systems Administration experience supporting United States Government classified environments - Experience in applying DISA STIGs and resolving security vulnerabilities - Experience administering Microsoft’s Windows Server (i.e. 2016, 2019, or 2022) operating system functions, security policies and technical security safeguards - Experience with Scripting and Automation (i.e., Ansible, Perl, Bash, Shell Scripting, PowerShell, etc.). - Fundamental understanding of the OSI model - Fundamental understanding of authentication mechanisms such as Kerberos, LDAP and NTLM and use of necessary tools to troubleshoot them - Knowledge of network protocols such as TCP/IP, UDP, SMTP, NFS, FTP, Telnet and SSH - VMware experience (VSphere vCenter, ESXi, KVM) - Demonstrated experience with Cisco switching technology - Experience with network-attached storage or storage area networks - Red Hat Certified System Administrator certification equivalent or higher - VMware Certified Professional certification - Microsoft Certified Solutions Associate (MCSA) - Experience with audits of key IT components to ensure compliance with established standards, policies, and configuration guidelines - Experience with PowerShell scripting 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. Ability to work remotely Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility. 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. Security Clearance Information This position requires a government security clearance, you must be a US Citizen for consideration. 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. 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.

Keywords: Lockheed Martin, Catonsville , IT Systems Engineer, Sr / Top Secret / Onsite: KoP, PA, IT / Software / Systems , King of Prussia, Maryland