Senior Software Test Engineer | Sensor Fusion

Date posted: Jul. 01, 2026

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.

What's In It For You

From flexible work schedules to comprehensive benefits that help support your health, financial well-being, and future, Lockheed Martin is committed to investing in you. Explore our comprehensive benefits package to learn more about the programs and resources available to help you thrive personally and professionally.

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* Must be a U.S. citizen. This position is located at a facility that requires special access, and an interim Secret clearance is required to start. *

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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

Security Clearance Statement

This position requires a government security clearance, you must be a US Citizen for consideration.

Clearance Level

Secret with Investigation or CV date within 5 years

Other Important Information You Should Know

Expression of Interest

By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.

Ability to Work Remotely

Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.

Work Schedules

Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.

Schedule for this Position

4x10 hour day, 3 days off per week

Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.

The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.

Join us at Lockheed Martin, where your mission is ours. Our customers tackle the hardest missions. Those that demand extraordinary amounts of courage, resilience and precision. They’re dangerous. Critical. Sometimes they even provide an opportunity to change the world and save lives. Those are the missions we care about.

As a leading technology innovation company, Lockheed Martin’s vast team works with partners around the world to bring proven performance to our customers’ toughest challenges. Lockheed Martin has employees based in many states throughout the U.S., and Internationally, with business locations in many nations and territories.

Experience Level

Experienced Professional

Business Unit

AERONAUTICS COMPANY

Relocation Available

Possible

Career Area

Software Engineering

Type

Full-Time

Shift

First

At Lockheed Martin, we apply our passion for purposeful innovation to keep people safe and solve the world's most complex challenges.

Pioneering Defense Technology: From aerospace to outer space to cyber space, you can innovate mission solutions alongside the best minds in the business.

United By Culture: Excellence, integrity, and collaboration define us. We accelerate change and embrace one another’s perspectives to win for our customers.

Real Impact, Real Growth: Grow your career and skills for life. Our wide array of opportunities and technology-driven learning programs enable your development and agility.

Your Health, Your Wealth, Your Life: Competitive pay, comprehensive benefits and flexible schedules designed so you thrive — at work and beyond.

Empowered to Be Your Best: Use your strengths to make a difference in the lives of one another, our customers, our communities, and our planet.

Here, the possibilities are endless because we offer: