Full Stack Software Engineer Sr. - TS//SCI Clearance

Reference: 728136BRPosted: 2026-05-15Location: King of Prussia, PennsylvaniaClearance: TS/SCICompany: Lockheed MartinDescription: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 Black Canyon program is a new and growing program, and we are looking to expand our team of dedicated full stack software engineers to meet our Customer's needs. Our team will be working to develop and integrate existing software with newly developed components and user interfaces to provide our customer with a much needed capability. We are developing cloud native components using modern software tools and practices.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.Black Canyon provides a unique opportunity to join a program on the ground floor and to play a part in design and development of capabilities that will be used daily by our customer organization. You will have the opportunity to be a part of the entire software engineering lifecycle.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.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 SCI eligibility• Agile scrum experience and proficiency with Agile tools (Jira, Version One, Confluence)Desired Skills:• 3+ years of professional front end development experience with React (hooks, functional components) or Angular (components, services, RxJS)• Deep understanding of client side architecture and best practices for performance, accessibility, and responsive design• Proven expertise in state management (e.g., Redux, MobX, NgRx, Context API, RxJS) and ability to design scalable, maintainable data flows• Strong proficiency in HTML5, CSS3 (Flexbox/Grid, preprocessors/Sass), and modern JavaScript/TypeScript standards (ES6+)• Experience building single page applications (SPAs) with routing, lazy loading, and code splitting techniques• Familiarity with UI component libraries (Material UI, Ant Design, Bootstrap) and ability to create custom, reusable components• Comfortable writing unit and integration tests for UI code (Jest, React Testing Library, Karma/Jasmine) and using CI pipelines for front end validation• Ability to collaborate closely with UX/UI designers, back end engineers, and product owners to translate requirements into polished UI features• Strong problem solving mindset, attention to detail, and commitment to code quality (linters, style guides, code reviews)• Excellent communication skills and a proactive attitude toward learning emerging front end technologies and trends.• Experience working in a Top Secret environment#LMSpaceSoftwareEng#SpaceSecurity#SpaceNSSSecurity Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: TS/SCIOther Important Information You Should KnowExpression 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 offLockheed 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 ProfessionalBusiness Unit: SPACERelocation Available: PossibleCareer Area: Software EngineeringType: Full-TimeShift: First