Senior Software Engineer, Level 3 - Clearance Required jobs in United States
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Lockheed Martin · 1 day ago

Senior Software Engineer, Level 3 - Clearance Required

Lockheed Martin Space is seeking a full time Software Engineer. In this role, you will support the software engineering lifecycle, focusing on requirements analysis, design, coding, and testing.

AerospaceCyber SecurityMachinery ManufacturingMilitaryNational SecurityRemote SensingSecurity
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Growth Opportunities
badNo H1BnoteSecurity Clearance RequirednoteU.S. Citizen Onlynote

Responsibilities

Support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, object oriented analysis & design, code & unit test, integration, and support to formal test/delivery

Qualification

CC++Real Time Operating SystemAgile Software DevelopmentModel Based Systems EngineeringSoftware requirements designCommunication skills

Required

Experience and/or knowledge of languages such as C or C++
Must be a US Citizen
Final Secret government security clearance prior to starting
Support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, object oriented analysis & design, code & unit test, integration, and support to formal test/delivery

Preferred

Real Time Operating System (RTOS) experience – (GreenHill or VxWorks)
Knowledge of Agile Software Development
Excellent written and verbal communication skills
Knowledge of Model Base Systems Engineering (MBSE)
Previous experience writing and designing to software requirements

Company

Lockheed Martin

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Lockheed Martin is a global security and aerospace company that specializes in advanced technology systems, products, and services. It is a sub-organization of Lockheed Martin.

Funding

Current Stage
Public Company
Total Funding
$6.06B
Key Investors
Air Force Research Laboratory
2025-12-05Post Ipo Debt· $3B
2025-08-28Post Ipo Debt· $3B
2023-11-13Grant· $33.7M

Leadership Team

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Jim Taiclet
Chairman, President & CEO
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Craig Martell
Chief Technology Officer
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Company data provided by crunchbase