Software Engineer, Senior (Level III) - TS/SCI w Poly

Job ID:701972BR Date posted:Aug. 13, 2025 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. This is an exciting software development position within the growing Space Security division within Mission Solutions! Join one of the Foxtrot Program Area's Software Development Teams. We're seeking a talented and motivated Software Engineer to join our exciting development effort and contribute to the success of a very challenging and rewarding mission. Development responsibilities include: • Software design, code and unit test. • Investigation into ad-hoc issues. • Ability to analyze and resolve complex mission problems. Typical Agile Scrum responsibilities include: • Participation in daily scrums. • Sprint/release planning. • Demos, and retrospectives. You will have: • A commendable work ethic. • Good communication skills. • A great attitude. • A results-oriented mindset. • Creative thinking and problem-solving skills. This is a EARLY-MID CAREER (level 3) ROLE where candidates typically require 5+ years of professional experience and a BS degree or above. Selected candidate must have an active TS/SCI w/ poly security clearance prior to start. Our 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 This position has a collaborative and modern agile workspace in beautiful Longmont, Colorado. We care about our employees and offer a generous benefits package: 401K, PTO, and work/life balance and more. #LI-CS1 Basic Qualifications: • Selected candidate must have an active TS/SCI w/ poly security clearance prior to start. • Recent Software Development experience in C#. • Ability to design software solutions to address complex problems • Comfortable working in an Agile Scrum environment • Be willing to provide consent / submit for a Polygraph Re-examination.Desired Skills: • Proficiency within the following areas or technologies: • Git and/or similar Version Control Systems (VCS) • Jenkins and/or similar tools • Familiarity with LM Products Horizon or Conductor • Python, and Java #LMSpaceSoftwareEng Security Clearance Statement:This position requires a government security clearance, you must be a US Citizen for consideration. Clearance Level:TS/SCI w/Poly Other Important Information You Should Know Expression 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 off 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 Professional Business Unit:SPACE Relocation Available:Possible Career Area:Software Engineering Type:Full-Time Shift:First