Senior Software Engineer, Systems - Level 3 jobs in United States
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Lockheed Martin · 17 hours ago

Senior Software Engineer, Systems - Level 3

Lockheed Martin Space is focused on harnessing the potential of space to drive innovation and transform technology. They are seeking a dynamic and experienced Software Systems Engineer for the MK21A program to integrate system and software designs and maintain end-to-end traceability.

AerospaceCyber SecurityMachinery ManufacturingMilitaryNational SecurityRemote SensingSecurity
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Growth Opportunities
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Responsibilities

Translate system architecture, customer/product requirements, and CONOPS into detailed software requirements and interface definitions
Support verification planning by establishing clear traceability links from architecture through requirements to test artifacts
Leverage cutting edge Model Based Systems Engineering (MBSE) tools and processes (e.g., SysML, MagicDraw, Cameo) to create synergistic models that connect verification items, requirements, and design elements
Develop and maintain product and process documentation (CDRLs – Contract Data Requirements List) in accordance with contract requirements
Coordinate design information across the system to ensure consistency and completeness throughout the development lifecycle
Use your excellent communication skills to work across the Lockheed Martin organization and customer/user community to ensure consensus and understanding of solutions

Qualification

Software Requirements DevelopmentSW architecture developmentModel Based Systems EngineeringCC++MATLABPythonAgile Development ProcessSystems thinkingCommunication skills

Required

Active Secret Clearance
Systems and/or software engineering experience or relevant systems engineering training through a university or certificate program
Experience with Software Requirements Development (DOORS Experience a plus)
SW architecture development
Cross reference SW architecture to system architecture and design
DOD Software CDRL Development
Software Model Development with modeling tool such as Cameo or Rhapsody
Familiarity with modeling language(s) such as SysML/UML and Architecture Framework(s) such as DODAF
Ability to understand code written in programming languages such as C, C++, MATLAB or python
Familiar with Agile Development Process
Ability to work in a fast-paced, synergetic team environment
Demonstrated behaviors of a systems thinker with the ability to select and apply appropriate systems thinking skills to solve problems and implement constructive change
Excellent written and verbal communication skills, strong social skills, and ability to build consensus among peers while building solid relationships with team members

Benefits

Medical
Dental
401k
Paid time off
Work/life balance
Career development
Mentorship opportunities
Rewards & recognition

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