Senior Software Systems Engineer - Level 3

Lockheed Martin • King of Prussia, PA

1d • Onsite

About The Position

The Software Systems Engineer will use Model-Based Systems Engineering (MBSE) methodologies to define, design, and maintain complex system architectures using Cameo Systems Modeler (MagicDraw) and decompose software requirements from systems and component requirements. This role bridges the gap between high-level system requirements and detailed software development, ensuring traceability and consistency across the lifecycle.

Requirements

• Experience in systems engineering, software engineering, or related field.
• Proven expertise in Cameo Systems Modeler / Cameo Enterprise Architecture or equivalent.
• Knowledge of SysML (System Modeling Language) and/or UML (Unified Modeling Language).
• US Citizenship required.
• Final secret clearance needed to start.

Nice To Haves

• INCOSE Certified Systems Engineering Professional (CSEP) or OMG Certified Systems Modeling Professional (OCSMP).
• Demonstrated ability to author clear, concise, and traceable software requirements—including functional, non‑functional, and interface specifications—that align with stakeholder needs and project goals.
• Experience with DOORS a plus.
• Experience in Agile development, Configuration Management, DO-178C.
• Experience in aerospace, defense, or complex electronics.
• Active secret security clearance.
• Experience DOD Software CDRL Development.
• Ability to thrive 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.

Responsibilities

• Define, design, and maintain complex system architectures using Model-Based Systems Engineering (MBSE) methodologies.
• Decompose software requirements from systems and component requirements.
• Ensure traceability and consistency across the lifecycle.

Benefits

• Medical
• Dental
• Vision
• Life Insurance
• Short-Term Disability
• Long-Term Disability
• 401(k) match
• Flexible Spending Accounts
• EAP
• Education Assistance
• Parental Leave
• Paid time off
• Holidays

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed