Level 4 Software Engineer

12-May-2026 Level 4 Software Engineer Space Colorado, Pennsylvania 727615BR Basic Qualifications

• 5+ years of experience coding software with proficiency in at least one of the following: Java, C#, or C++.
• Professional experience working in an Agile/Scrum environment.
• Final secret security clearance required for consideration.

Job Code/Title E1074:

Software Engineer Stf Job Description

WHO WE ARE

Lockheed 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 DOING

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. And we're reimagining how space can connect us, ensuring security and prosperity. 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.

THE WORK

Lockheed Martin's Ground Software team is seeking a Level 4 Software Engineer with a secret clearance to support the SDA portfolio, from Boulder, CO or Valley Forge, PA, on the ground product line, developing solutions for OPIR sensor‑data‑stream processing that enables missile‑warning capabilities. In this role you will design, develop, maintain, and test the Mission Processing codebase, adapt and extend existing frameworks for new sensor interfaces, create and document robust APIs, and build mission‑processing applications that meet stringent performance, latency, and reliability requirements. You will write and execute unit, integration, and system‑level tests, troubleshoot issues across the software stack, and collaborate closely with systems, hardware, algorithm, and mission‑operations teams to deliver high‑quality features on schedule. The ideal candidate is a critical thinker, self‑motivated, detail‑oriented, and passionate about their trade, with at least five years of professional software development experience and proven ability to work in high‑performing, multi‑disciplinary teams while maintaining a focus on system quality and timely delivery. This is an

MID-SR CAREER

(level 4) ROLE where candidates typically require 5+ years of professional experience and a BS degree. 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 US

Opportunity 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 & recognition We care about our employees and offer a generous benefits package : 401K, PTO, and work/life balance and more. Desired skills
• Hands-on experience with containerization tools (e.g., Docker) and an understanding of how applications are deployed and orchestrated (e.g., Kubernetes).
• Excellence in written and verbal communication, specifically in producing high-quality technical documentation and providing constructive, actionable feedback during peer code reviews.

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 Ability to Telecommute No telecommuting 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 Secret LMCareers Business Unit SPACE Program AMDT3 Department 72B1A00:

Missile Warning Job Class Software Engineering Job Category Experienced Professional City, State Boulder-CO, King of Prussia-PA City Boulder, King of Prussia Zip 19406, 80301 Virtual yes 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 $113,900 - $200,905. 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 $131,000 - $227,125. 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.