Full Stack Software Engineer Senior - Top Secret Clearance

04-May-2026 Full Stack Software Engineer Senior

• Top Secret Clearance Space Pennsylvania 726842BR Basic Qualifications
• Programming Languages/scripting
• JavaScript/Node, C#
• Modern Web Frameworks
• Angular/React/Vue.js/Ember.js
• GitLab pipeline for software project
• Currently active Top Secret security clearance, with either SCI or other special program access
• Experience working in a Top Secret environment
• Agile scrum experience and proficiency with Agile tools (Jira, Version One, Confluence) Job Code/Title E1073:

Software Engineer Sr Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We're erasing boundaries and forming partnerships across industries and around the world. We're advancing spacecraft and the workforce to fuel the next generation. And we're reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Within Space Security area, the Arctic Gates program is growing, and we are looking to expand our team of dedicated full stack software engineers to meet our Customer's needs. Our teams will be developing and integrating new Operational C2 systems in a virtual cloud environment and working closely with other Mission Partners to deliver a fully integrated system to the Customer comprised of critical software applications. As a member of the software scrum team, you'll be contributing to implementing the software features to create these new systems, and the work will include areas such as defining and implementing application programming interfaces (APIs) as part of the microservices architecture. Utilizing software development best practices, such as modern web frameworks, CI/CD pipelines, and automated unit tests, you will work together to provide a cloud system that meets enterprise milestones. This new role provides the opportunity to be a part of the entire software engineering lifecycle, where the candidate will be able to apply their skills at the lowest level all the way up through full system functionality. This is a unique opportunity to contribute to building a new system from the ground up, where you will have opportunities to shape the system, work side by side with the Customer, and gain new domain knowledge. If you are looking for a new position where each day you are challenged but also empowered to make decisions, then this opportunity if for you. Please note that this program is classified and the position is full-time, on-site, in King of Prussia, PA, with occasional opportunities to work from home. Desired skills

• Automated testing experience, able to identify scenario where unit test vs integration test would be useful Containerization experience
• UI Design
• CSS, Astro UX, Material
• Design and creation of an API used by others (e.g., REST API, message broker-based API)
• REST or gRPC experience
• Active TS/SCI clearance 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. Select the Telework classification for this position Employee will work on-site full-time Shift First 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. Work Schedule 9x80 every other Friday off Security Clearance Information This position requires a government security clearance, you must be a US Citizen for consideration. Security Clearance Top Secret with Investigation or CV date within 5 years LMCareers Business Unit SPACE Program Space Security

• Victor Department 72C1A00:

CS3 Space Security Job Class Software Engineering Job Category Experienced Professional City, State King of Prussia-PA City King of Prussia Zip 19406 Virtual no Relocation/Housing Stipend Available Possible Req Type Full-Time Direct/Indirect Direct

• 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. 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.

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 $93,200

• $164,450.

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 $107,300

• $185,840.

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.