Software Engineer Sr - E3

Posted An Hour Ago
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Fort Worth, TX, USA
In-Office
98K-182K Annually
Senior level
Aerospace • Security • Cybersecurity • Industrial
The Role
Develops, integrates, troubleshoots, and maintains distributed real-time simulation software for aircraft and hardware interfaces. The role supports hardware-in-the-loop and man-in-the-loop lab environments, Agile DevSecOps delivery, automated testing, flight testing, and mission-critical customer requirements. Responsibilities include software design, development, documentation, testing, debugging, integration, and deployment using C++ and Linux.
Summary Generated by Built In
Standard Job Description

You will be the Software Engineer Sr for the Simulation & Systems Labs (SSL) which is responsible for delivering advanced simulation and integration solutions that empower warfighters worldwide.

What You Will Be Doing

As the Software Engineer Sr you will be responsible for integration and troubleshooting of SSS software products in hardware‑in‑the‑loop and man‑in‑the‑loop lab environments, while contributing to the design, development, and deployment of real‑time simulation systems.


Your responsibilities will include:

  • Integrate and troubleshoot SSS software in HIL and MIL lab environments.
  • Develop and maintain distributed real‑time simulation code for aircraft and hardware interfaces.
  • Apply technical principles to reuse existing software and support digital transformation initiatives.
  • Collaborate within an Agile, DevSecOps team to deliver high‑quality, mission‑critical capabilities.
  • Support flight‑testing activities and ensure solutions meet customer requirements.

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 pursue ambitious goals, work hard, and enjoy what you do, then we want to build a better tomorrow with you.


Who You Are
You are a collaborative software engineer with a strong background in integration, real‑time systems, and simulation environments. You thrive in  fast‑paced Agile settings, bring ethical rigor to every task, and are driven to deliver impactful solutions that directly support our warfighters. 

Further Information About This Opportunity

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

This position is in Fort Worth, TX Discover Fort Worth.


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
  • Software Development Experience using C++
  • Experience developing software on Linux
  • Bachelor’s degree in an Engineering/Technical Field (STEM)
Desired Skills
  • Experience with Continuous Integration (CI) and tools, such as Jenkins, Git, and Bitbucket
  • Experience with real-time software development & integration
  • Experience with Real-Time Operating Systems
  • Experience with automated testing
  • Experience performing software integration in hardware-in-the-loop and/or man-in-the-loop simulation environments
  • Experience with Agile software development methodologies and tools, such as Jira
  • An extreme interest in anything airborne, such as fighter aircraft and airplanes
  • Strong oral and written communication skills
  • Strong interpersonal and collaboration skills
  • Strong work ethic and self-motivation
  • Active F-35 program access

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

  • Software development experience using C++
  • Experience developing software on Linux
  • Bachelor’s degree in an engineering or technical STEM field
  • Must be a U.S. citizen
  • Ability to obtain a Secret security clearance
  • Experience with continuous integration tools such as Jenkins, Git, and Bitbucket
  • Experience with real-time software development and integration
  • Experience with real-time operating systems
  • Experience with automated testing
  • Experience integrating software in hardware-in-the-loop or man-in-the-loop simulation environments
  • Experience with Agile software development methodologies and tools such as Jira
  • Active F-35 program access

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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