Software Engineer Sr - E3

Posted 2 Hours Ago
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Marietta, GA, USA
In-Office
98K-182K Annually
Senior level
Aerospace • Security • Cybersecurity • Industrial
The Role
Develops software models and graphical user interfaces for aircraft simulation systems supporting air mobility, maritime missions, avionics, navigation, and weapons systems development. Collaborates with systems, operations, and hardware engineers to integrate complex components, interpret interface control documents, estimate work, and develop, test, and maintain simulation software using Ada, C++, Python, or Java.
Summary Generated by Built In
Long Description

This is an opportunity to work on the Simulation and Systems Labs (SSL) Systems Engineering team. SSLT is a highly innovative team responsible for developing, testing and maintaining aircraft simulation systems and subsystems utilized for aircraft capability integration and weapons systems development from concept design through production and delivery.


What You Will Be Doing

As a Software Engineer on our team, you will work on multiple Air Mobility and Maritime Missions (AMMM) projects, designing and developing software models in a simulation environment.

Your primary responsibilities will include:
• Utilizing standard engineering practices to develop models for complex software systems and applications
• Collaborating within a cross-functional team, including systems engineering, operations engineering, hardware engineering, and project leadership to facilitate in technical discussions and estimates
• Deriving and applying knowledge of various avionics, navigation, and communication Interface Control Documents
• Developing modern Graphical User Interfaces (GUIs) to integrate into simulation environments, providing an intuitive and user-friendly experience for operators and users
• Developing innovative solutions to integrate components that have not been previously used together, often requiring outside-the-box thinking


What’s In It For You

We are committed to supporting your work‑life balance and overall well‑being, offering flexible scheduling options. Learn more about Lockheed Martin’s comprehensive benefits package here. Do you want to be part of a company culture that empowers employees to think big, lead with a growth mindset, and make the impossible a reality? We provide the resources and give you the flexibility to enable inspiration and focus – if you have the passion and courage to dream big, work hard, and have fun doing what you love then we want to build a better tomorrow with you.



Further Information About This Opportunity

This position is located at a facility that requires special access. The selected candidate must be able to obtain a secret clearance.

This position is in Marietta, GA  Discover Marietta.


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 STEM/technical discipline
  • Simulation and model software development experience
  • Experience developing software in Ada, C++, and/or Python
Desired Skills
  • Familiarity with digital bus architectures
  • Experience developing software in Java
  • Gitlab
  • Experience with Jenkins
  • Experience with SW Test Pipelines
  • Avionics Background
  • Linux OS Experience

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.

Skills Required

  • Bachelor's degree in a STEM or technical discipline
  • Simulation and model software development experience
  • Experience developing software in Ada, C++, and/or Python
  • Ability to obtain a Secret security clearance
  • Familiarity with digital bus architectures
  • Experience developing software in Java
  • GitLab experience
  • Jenkins experience
  • Software test pipeline experience
  • Avionics background
  • Linux operating system experience

Lockheed Martin Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lockheed Martin and has not been reviewed or approved by Lockheed Martin.

  • Retirement Support — Retirement benefits are described as a standout element, with a strong 401(k) program and options like an employee stock purchase plan. Feedback suggests these features meaningfully enhance total compensation and long‑term financial security.
  • Healthcare Strength — Healthcare coverage is portrayed as comprehensive from day one, with multiple plan options, mental health resources, and virtual care. Wellness supports such as on‑site services and preventive programs are also highlighted.
  • Flexible Benefits — Work arrangements often include compressed schedules and telework, contributing to a favorable work‑life balance. Feedback suggests this flexibility is a key reason many view the overall package positively.

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The Company
HQ: Bethesda, MD
108,588 Employees
Year Founded: 1912

What We Do

Customer Focus, Innovation and Purpose are Built Into Everything We Do. Lockheed Martin. Your Mission is Ours ™. Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services.

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