Software Engineer Sr - E3
Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Aug 12, 2026. Lockheed Martin scores A on the Alion truth index.
Standard Job Description
Help ensure mission-critical software performs when it matters most.
As a Senior Software Test Engineer supporting the Sensor Fusion team, you'll help validate the software that enables advanced aerospace systems to process, fuse, and deliver critical mission data. Your work will play a key role in ensuring high-quality software is delivered with accuracy, reliability, and confidence.
Working alongside software, systems, and integration engineers, you'll analyze requirements, develop comprehensive test strategies, execute software validation activities, and identify opportunities to improve product quality throughout the software development lifecycle. This role is ideal for engineers who enjoy problem solving, collaborating across disciplines, and ensuring complex software performs as designed.
What You Will Be Doing:
- Analyze software and system requirements to develop comprehensive test strategies, test cases, and validation plans for Sensor Fusion software.
- Execute software verification and validation activities to ensure mission-critical capabilities meet quality and performance requirements.
- Develop and maintain automated and manual test cases using C++ while supporting continuous software integration and delivery.Collaborate with Software Engineering, Systems Engineering, and Integration & Test teams to identify, troubleshoot, and resolve software defects.
- Support Agile software development by participating in test planning, defect tracking, and continuous process improvement activities.
- Utilize engineering tools including Linux, GitLab, Jira, and automated testing frameworks to improve software quality and testing efficiency.
- Contribute throughout the software development lifecycle by ensuring robust testing, documentation, and delivery of reliable Sensor Fusion capabilities.
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 or Software Engineering
- Minimum of 2 years of testing experience
- Experience coding in C++
- Experience analyzing requirements
Desired Skills
- Experience coding in C# or Python
- Experience working in Agile teams
- Experience with Linux operating systems
- Experience with Jira and GitLab
- 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.