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# Software Systems Architecture Sr - E3

- **Company:** Lockheed Martin
- **Location:** King of Prussia, PA, United States
- **Experience:** Expert
- **Salary:** $95,900.0 - $178,100.0
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Systems Engineering, Configuration Management, Software Engineering, Software Requirements Analysis, Software Systems, Systems Modeling Language, UML, MagicDraw, DO-178B
- **Published:** October 30, 2026
- **Apply:** https://www.jobmonkeyjobs.com/career/28147304/Software-Systems-Architecture-Sr-E3-Pennsylvania-King-Prussia-1301

## About the Role

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)

 * Ability to obtain Secret Security Clearance (US Citizenship Required)

Desired Skills

 * 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.

 * Clearance: 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

#LMSpaceSoftwareEng

## Description

Performs complex software design activities integrating multiple technologies. Provides architectural guidelines for all software design activities to current and future technological environments. Maintains state-of-the-art knowledge of technologies, planning, design, and analysis methodologies. Responsible for the design and architectural guidelines for current and future software technological activities.

This role bridges the gap between high-level system requirements and detailed software development, ensuring traceability and consistency across the lifecycle. The Software Systems Engineer will

 * Decompose software requirements from systems and component requirements
 * Use Model-Based Systems Engineering (MBSE) methodologies to define, design, and maintain complex system architectures using Cameo Systems Modeler (MagicDraw).