UI / Mission Planning Software Engineer, Staff / C++ - Orlando, FL

Reference: 729744BRPosted: 2026-05-28Location: Orlando, FloridaClearance: SecretCompany: Lockheed MartinDescription:You will be a Staff Software Engineer on our team at Lockheed Martin. Lockheed Martin is a global security and aerospace company that employs approximately 114,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. Lockheed Martin Missiles and Fire Control (MFC) is one of four Lockheed Martin business areas. MFC is a recognized designer, developer and manufacturer of precision engagement aerospace and defense systems for the U.S. and allied militaries. MFC develops, manufactures and supports advanced products for military customers that include the U.S. Army, Navy, Air Force, Marine Corps, NASA and dozens of foreign allies. MFC also offers a wide range of products and services for the global civil nuclear power industry and the military’s green power initiatives. What You Will Be DoingThe role will require and focus on building high-performance, cross-platform (Windows/Linux), architecturally sound modules in C++ containing missile performance related functions and algorithms. These modules define a public interface using C# and are consumed by mission planning applications via NuGet.As a Staff Software Engineer, your responsibilities will include but are not limited to: • Requirements analysis • Designing/developing C# and C++ software components in MS Visual Studio• Development of software component test cases, procedures and drivers• Integration of developed components with associate contractor developed components. • Developing and maintaining UI software applications and/or Web-based applications. • The successful candidate will have training in C/C++, prior experience in GUI development, experience with Linux OS.• The role will require integrating with sub-contractor developed components in C++.• CONUS travel may be required to support customer, user, and integration events.Why Join UsAs a Staff Software Engineer at MFC, you will join one of the largest networks of software professionals, implementing cutting edge technologies on both existing and new development platforms. You will be helping us solve the world’s most difficult challenges supporting such wide-ranging domain areas such as aircraft flight command and control, air traffic control, health care, and homeland defense. We are a matrix engineering and technology organization so you will touch multiple programs over your career! Do you want to be part of a company culture that encourages employees to build their career, leverage their knowledge while using cutting edge technology, and achieve challenging goals? We provide the foundation and resources to help you stay motivated, inspired, and productive. If you are driven, dedicated, and enjoy doing what you love, then we want you to join our journey and build a better tomorrow with you.This position is onsite in Orlando, Florida. We offer flexible work schedules to comprehensive benefits investing in your future and security, Learn more about Lockheed Martin’s comprehensive benefits package here.Further Information About This Opportunity:This position is in Orlando. Discover more about our Orlando, Florida location.MUST BE A U.S. CITIZEN - This position is located at a facility that requires special access. The selected candidate must be able to obtain a secret clearance. A company-sponsored interim secret is required to start.Basic Qualifications:• Experience with .NET/C# development• Strong experience developing in C++• Strong software architecture knowledge• Experience developing and implementing algorithms• GitLab CI/CD • Visual Studio environment experience with .NET Framework• Interim Secret Clearance required to start, with the ability to obtain Secret clearance, must be a U.S. citizenDesired Skills:• Mission planning software development experience• Missile simulation and/or performance experience• C++/C# interoperability experience• Cross-platform (Windows/Linux) development experience• GitLab CI/CD development experience• NuGet package creation experience• Docker/Kubernetes experience• Visual Studio familiarity• Ada familiarity• C++ experience• Micro-services design pattern• MVC• Windows/Linux container images• Application containerization with DOCKER• Kubernetes• JavaScript• NodeJS• ASP.NET.Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: SecretOther 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: 4x10 hour day, 3 days off per weekLockheed 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.Join us at Lockheed Martin, where your mission is ours. Our customers tackle the hardest missions. Those that demand extraordinary amounts of courage, resilience and precision. They’re dangerous. Critical. Sometimes they even provide an opportunity to change the world and save lives. Those are the missions we care about.As a leading technology innovation company, Lockheed Martin’s vast team works with partners around the world to bring proven performance to our customers’ toughest challenges. Lockheed Martin has employees based in many states throughout the U.S., and Internationally, with business locations in many nations and territories.Experience Level: Experienced ProfessionalBusiness Unit: MISSILES AND FIRE CONTROLRelocation Available: PossibleCareer Area: Software EngineeringType: Full-TimeShift: First