Software Engineer Sr - E3

Posted 2 Days Ago
Be an Early Applicant
Sunnyvale, CA, USA
In-Office
123K-228K Annually
Senior level
Aerospace • Security • Cybersecurity • Industrial
The Role
Develops and tests software for hardware-in-the-loop integration and simulation environments. Responsibilities include configuring and troubleshooting HWIL testbeds, coordinating integration objectives, enhancing test scripts, supporting regression testing, verifying software baselines, diagnosing configuration issues, and documenting results. Collaborates with navigation, guidance and control, flight software, and engineering teams. Requires Linux or UNIX, Python, C++, hardware/software integration, and U.S. citizenship, with the ability to obtain a Secret clearance.
Summary Generated by Built In
Standard Job Description

Core Responsibilities
• Understand and operate the Hardware In the
Loop Testbed, including configurations, tools,
and processes.
• Develop and coordinate integration
objectives, integrate HWIL test bed
components, and troubleshoot issues.
• Drive enhancements to end to end test
scripts and simulation updates.
• Work closely with Navigation, Guidance &
Control, Flight Software development, and
HWIL teams to ensure compliance with
integration standards and test procedures.
• Support regression testing, perform Change
Request (CR) check outs, and verify software
baselines.
• Collaborate with engineering groups to
resolve technical problems, communicate
status, and maintain documentation.
• Uphold rigorous standards and processes
through strong organizational and
communication skills.
Key Success Factors
• Ability to work independently with minimal
supervision.
• Conduct testing, capture results, and produce
clear reports.
• Diagnose and resolve software configuration
or baseline issues during integration and
installation phases.
• Review problem reports and enhancement
requests to assess impacts on testing and
regression plans.

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

Experience in Linux or UNIX environments.
Experience on a software development
program
Experience with integrating and testing
hardware/software products or equivalent
technical experience
Python development experience
C++ development experience
US Citizenship Required. No clearance needed to start. Must have the ability to obtain and maintain a Secret Clearance.

Desired Skills

Experience with Matlab development
Ability to read and modify Matlab tool
Experience with Agile development
methodologies
Experience developing and maintaining
simulation software
Ability to analyze test results and coordinate
with SME to verify functionality and
requirements
Good verbal, written, and interpersonal
communication skills.

Pay Information

Full-Time Salary Range: $122600.00 - $227600.00

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

  • Experience in Linux or UNIX environments
  • Experience on a software development program
  • Experience integrating and testing hardware/software products or equivalent technical experience
  • Python development experience
  • C++ development experience
  • U.S. citizenship
  • Ability to obtain and maintain a Secret clearance
  • MATLAB development experience
  • Ability to read and modify MATLAB tools
  • Experience with Agile development methodologies
  • Experience developing and maintaining simulation software
  • Ability to analyze test results and coordinate with subject matter experts to verify functionality and requirements
  • Good verbal, written, and interpersonal communication skills

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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