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Senior Systems Engineer, Level 3 -Top Secret Clearance Required

Lockheed Martin

Engineering Jobs

Senior Systems Engineer, Level 3 -Top Secret Clearance Required

contractPosted: Nov 21, 2025

Job Description


Description:The coolest jobs on this planet… or any other… are with Lockheed Martin Space.
At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every single day we use our skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you.

You will be responsible for developing system level artifacts and engaging with customers, mission partners, and other stakeholders to satisfy and fulfill customer directed objectives
As a member of the the Systems Engineering/Integration team, in this role you will performing in an accelerated, collaborative, dynamic small team environment
Responsibilities include:
• Perform in an accelerated, collaborative, dynamic small team environment, closely integrated with customers and contractors
• Planning and creating test cases and tracking progress utilizing modern test management tools
• Ensure consistency of requirements and traceability back to customer objectives
• Ensure consistency of feature acceptance criteria to meet customer objectives
• Developing Operations Rehearsal and Training materials
• Support the successful execution of program milestones


*** This position is contingent upon the program award expected in early 2026.***
Basic Qualifications:
• Experience working in Agile teams leveraging Scrum, Kanban or other methodologies and/or understanding of Agile concepts
• Experience with Agile management tools such as Jira, Confluence, Zephyr, etc.
• Experience with test plan/procedure preparation and test execution
• Experience performing software and/or systems integration and testing
• Experience defining tests required to satisfy feature acceptance criteria
• Current Top Secret Security Clearance
Desired Skills:
• Experience with Integration testing, system testing, formal acceptance testing (FAT) and independent verification and validation as well as operational system checkout.
• Experience with satellite ground systems
• Experience with MBSE and tools such as Cameo
• Experience with LM’s products applications
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: TS/SCI
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: 9x80 every other Friday off
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.
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.

With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.

If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.
Experience Level: Experienced Professional
Business Unit: SPACE
Relocation Available: Possible
Career Area: Systems Engineering: Software
Type: Full-Time
Shift: First

Locations

  • King of Prussia, Pennsylvania, United States

Salary

Estimated Salary Rangemedium confidence

140,000 - 190,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Agile methodologiesintermediate
  • Jira, Confluence, Zephyrintermediate
  • Systems integration and testingintermediate
  • Top Secret clearanceintermediate

Required Qualifications

  • Experience working in Agile teams leveraging Scrum, Kanban or other methodologies (experience)
  • Experience with Agile management tools such as Jira, Confluence, Zephyr, etc. (experience)
  • Experience with test plan/procedure preparation and test execution (experience)
  • Experience performing software and/or systems integration and testing (experience)
  • Experience defining tests required to satisfy feature acceptance criteria (experience)
  • Current Top Secret Security Clearance (experience)

Preferred Qualifications

  • Experience with Integration testing, system testing, formal acceptance testing (FAT) (experience)
  • Experience with satellite ground systems (experience)
  • Experience with MBSE and tools such as Cameo (experience)
  • Experience with LM's products applications (experience)

Responsibilities

  • Perform in an accelerated, collaborative, dynamic small team environment
  • Planning and creating test cases and tracking progress utilizing modern test management tools
  • Ensure consistency of requirements and traceability back to customer objectives
  • Developing Operations Rehearsal and Training materials
  • Support the successful execution of program milestones

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Lockheed Martin logo

Senior Systems Engineer, Level 3 -Top Secret Clearance Required

Lockheed Martin

Engineering Jobs

Senior Systems Engineer, Level 3 -Top Secret Clearance Required

contractPosted: Nov 21, 2025

Job Description


Description:The coolest jobs on this planet… or any other… are with Lockheed Martin Space.
At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every single day we use our skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you.

You will be responsible for developing system level artifacts and engaging with customers, mission partners, and other stakeholders to satisfy and fulfill customer directed objectives
As a member of the the Systems Engineering/Integration team, in this role you will performing in an accelerated, collaborative, dynamic small team environment
Responsibilities include:
• Perform in an accelerated, collaborative, dynamic small team environment, closely integrated with customers and contractors
• Planning and creating test cases and tracking progress utilizing modern test management tools
• Ensure consistency of requirements and traceability back to customer objectives
• Ensure consistency of feature acceptance criteria to meet customer objectives
• Developing Operations Rehearsal and Training materials
• Support the successful execution of program milestones


*** This position is contingent upon the program award expected in early 2026.***
Basic Qualifications:
• Experience working in Agile teams leveraging Scrum, Kanban or other methodologies and/or understanding of Agile concepts
• Experience with Agile management tools such as Jira, Confluence, Zephyr, etc.
• Experience with test plan/procedure preparation and test execution
• Experience performing software and/or systems integration and testing
• Experience defining tests required to satisfy feature acceptance criteria
• Current Top Secret Security Clearance
Desired Skills:
• Experience with Integration testing, system testing, formal acceptance testing (FAT) and independent verification and validation as well as operational system checkout.
• Experience with satellite ground systems
• Experience with MBSE and tools such as Cameo
• Experience with LM’s products applications
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: TS/SCI
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: 9x80 every other Friday off
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.
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.

With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.

If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.
Experience Level: Experienced Professional
Business Unit: SPACE
Relocation Available: Possible
Career Area: Systems Engineering: Software
Type: Full-Time
Shift: First

Locations

  • King of Prussia, Pennsylvania, United States

Salary

Estimated Salary Rangemedium confidence

140,000 - 190,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Agile methodologiesintermediate
  • Jira, Confluence, Zephyrintermediate
  • Systems integration and testingintermediate
  • Top Secret clearanceintermediate

Required Qualifications

  • Experience working in Agile teams leveraging Scrum, Kanban or other methodologies (experience)
  • Experience with Agile management tools such as Jira, Confluence, Zephyr, etc. (experience)
  • Experience with test plan/procedure preparation and test execution (experience)
  • Experience performing software and/or systems integration and testing (experience)
  • Experience defining tests required to satisfy feature acceptance criteria (experience)
  • Current Top Secret Security Clearance (experience)

Preferred Qualifications

  • Experience with Integration testing, system testing, formal acceptance testing (FAT) (experience)
  • Experience with satellite ground systems (experience)
  • Experience with MBSE and tools such as Cameo (experience)
  • Experience with LM's products applications (experience)

Responsibilities

  • Perform in an accelerated, collaborative, dynamic small team environment
  • Planning and creating test cases and tracking progress utilizing modern test management tools
  • Ensure consistency of requirements and traceability back to customer objectives
  • Developing Operations Rehearsal and Training materials
  • Support the successful execution of program milestones

Target Your Resume for "Senior Systems Engineer, Level 3 -Top Secret Clearance Required" , Lockheed Martin

Get personalized recommendations to optimize your resume specifically for Senior Systems Engineer, Level 3 -Top Secret Clearance Required. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Senior Systems Engineer, Level 3 -Top Secret Clearance Required" , Lockheed Martin

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

AerospaceDefenseSecurity Clearance72C1A00:CS3 Space Security

Answer 10 quick questions to check your fit for Senior Systems Engineer, Level 3 -Top Secret Clearance Required @ Lockheed Martin.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.