Software Engineer Sr - E3 Job Details

Job Title: Software Engineer Sr - E3

Posting Start Date: 8/14/26

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Job Description:

Standard Job Description

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

• Bachelor's degree in Computer Science, Software Engineering, Aerospace Engineering, Applied Physics, Mathematics, or a related technical discipline, or equivalent experience.
• Experience with software design, implementation, debugging, and testing using C#, Java, or similar object-oriented programming languages.
• Experience working in a collaborative software development environment.
• Strong problem-solving, communication, and teamwork skills.
• Desire to learn mission planning concepts and contribute to the development of operational mission software.
• Familiarity with Agile software development methodologies.
• Active TS/SCI security clearance with favorable polygraph adjudication and ability to maintain the required clearance. U.S. Citizenship required.

Desired Skills

• Knowledge of satellite mission planning, spacecraft operations, or related space-domain applications.
• Knowledge of orbital mechanics, astrodynamics, or aerospace systems.
• Experience with modern software development tools, including Git, GitLab, and CI/CD pipelines.

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Pay Information

Full-Time Salary Range: $110300.00 - $204900.00

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.