Software Systems Engineer Senior

Lockheed Martin Corporation; King of Prussia (PA); On-site; USD 96,000 - 178,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Flexible work arrangements

401(k) match

Paid time off

Holidays

Job summary

Lockheed Martin Corporation is seeking a Software Systems Engineer to bridge the gap between high-level system requirements and detailed software development. You will architect and guide software design using MBSE and Cameo tools, ensuring traceability across lifecycle.

Responsibilities include decomposing requirements, defining complex architectures, and maintaining architectural guidelines for current and future software activities within a fast-paced, defense-focused team.

Qualifications

• 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)

Responsibilities

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

Skills

Cameo Systems Modeler

SysML/UML

Security clearance

MBSE

DOORS

Agile development

DO-178C

Aerospace/defense

Systems thinking

Communication skills

Tools

Cameo Enterprise Architecture

Job description

Standard Job 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.

Standard Job 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).

Basic Qualifications

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

Pay Information

Full-Time Salary Range: $95900.00 - $178100.00

At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow—both professionally and personally.

The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer.

Benefits offered

Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.

• Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
• For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.