Software Engineer Sr - E3
Confirmed on the employer's own hiring board on Oct 6, 2026. First seen by Alion on Sep 21, 2026. Lockheed Martin scores A on the Alion truth index.
Standard Job Description
The Lockheed Martin Space Based Interceptor (SBI) team is seeking an experienced Software GNC Engineer Sr to be part of a team developing defense technology that could forever change our ability to deter and respond to adversity.
In this role, you will support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, object oriented analysis & design, code & unit test, integration, and support to formal test/delivery.
The successful candidate will have experience and/or knowledge of guidance, navigation, & control, as well as, programming languages such as C or C++. Must be a US Citizen; this position will require Final Secret government security clearance prior to starting. This position is located at a facility that requires special access. Travel up to 5% to Huntsville for Planning activities.
Plans, conducts, and coordinates software development activities. Designs, develops, documents, tests, and debugs software that contains logical and mathematical solutions to business/mission problems or questions in computer language for solutions by means of data processing equipment. Applies the appropriate standards, processes, procedures, and tools throughout the development life cycle. Applies knowledge of computer hardware and software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered from system users to develop software. Corrects program errors, prepares operating instructions, compiles documentation of program development, and analyzes system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls. Ensures software standards are met.
Basic Qualifications
- Broad technical skills such as rigid body dynamics, control theory, and/or computer programming.
- Proven experience using MATLAB and/or Simulink for simulation and analysis of feedback control systems, closed loop guidance, or navigation algorithms.
- C/C++ programming experience
- Demonstrate strong math skills in the areas of linear algebra, matrix math, statistics, trigonometry, and/or coordinate transformation.
- Ability to clearly document analysis results in presentation slides and engineering memos
- Ability to work in a fast-paced, collaborative team environment.
Desired Skills
- Experience with CORESIM
- Experience with flight software development and autocode to C++ and Python
- Experience with kinematics using Euler Angles and Quaternions
- Experience with autopilot design and linear stability analysis
- Familiarity or experience with missile defense systems or fire control
- Experience with C++ development, Linux and Gitlab
- Experience with Docker/Container and Kubernetes deployment
- Experience with FORTRAN and 6DOF simulation
- Knowledge/experience with GN&C control theory and physical modeling related to spacecraft and/or missile systems
- Familiarity with a GN&C hardware suite for space or missile applications
- Experience going through a spacecraft or missile program life cycle encompassing requirements generation, design, analysis, integration, verification, and testing of the GN&C subsystem for missile or space applications
- Ability to work in a fast-paced, dynamic, collaborative team environment
- Demonstrated good communication skills with the ability to articulate complex technical issues to peers, management, subcontractors, and customers.
- Familiarity with agile software development
- Distributed/parallel processing
- Possess a Secret clearance
Proficient in AI prompting as it applies to this position and practice
Pay Information
Full-Time Salary Range: $98100.00 - $182100.00
At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally.
The salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.
- Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
- For (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.