Job Description

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At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

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Leidos’ Defense Systems Land Systems is seeking a Systems Engineer to join a radar development team for a defense customer. Land Systems has a long history of radar development, including hardware design, algorithm development, and data analysis for a variety of customers.

This Model-Based Systems Engineer will join a team of seven other systems engineers, led by a senior systems engineer. In this role the Model-Based Systems Engineer will work with the broader engineering team to develop systems engineering artifacts in a Model-Based Systems Engineering environment using SysML and Cameo, including Requirements Specifications, Test Procedures, Test Reports, and CONOPS.

The selected candidate will interface with program management and design engineers to support a program’s systems engineering needs throughout its design life cycle, including modeling system behavior, defining the system architecture, dictating system interfaces, performing requirements verification, and helping develop test schemes. The selected candidate may present the systems engineering artifacts they have developed to the customer in formal design reviews and may serve as a customer liaison for MBSE content. The Model-Based Systems Engineer will need to work independently on these efforts, defining their own tasking derived from customer needs and contractual documents, but MBSE technical oversight will be provided when needed. Each effort will require different specific model artifacts, but broadly the Model-Based Systems Engineer will use Cameo Systems Modeler and SysML to develop requirements specifications, system architecture content (bdd / ibd), and system behavioral content (act / stm). This position does not necessarily require an MBSE Subject Matter Expert, but the role does minimally require experience working independently on MBSE models, some model customization, and the ability to communicate with non-Systems Engineering stakeholders who are less familiar with MBSE approaches.

The Model-Based Systems Engineer will work in a matrixed organization, which supports multiple programs at once in a variety of engineering fields with all different team environments. When the efforts end, the Model-Based Systems Engineer will have the opportunity to support a different program in the matrixed engineering portfolio. A candidate with experience in other systems engineering areas such as Lead Systems Engineering, Human Factors Engineering, Risk Management, and Reliability Analysis will be treated preferentially. Success in this organization often leads to leadership positions in Model-Based Systems Engineering, Systems Engineering, and Systems Engineering Integration and Test (SEIT).

If this sounds like the kind of environment where you can thrive, keep reading!

Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here!

Basic Qualifications

• A Bachelor’s degree in Systems Engineering, Software Engineering, Computer Science, Computer Engineering, Electrical Engineering, Mechanical Engineering, Aerospace Engineering, or equivalent degree from an ABET-accredited university with 6+ years of experience or an MS with 4+ years.
• Experience using MagicDraw, Cameo Systems Modeler and/or other Model Based System Engineering (MBSE) modeling tools
• Position requires candidates to be capable of performing in a collaborative engineering environment working closely with multi-disciplinary teams.
• Demonstrated experience effectively communicating within a team environment.
• Resident of the North Alabama area or willing to relocate to the Huntsville - North Alabama, AL area.
• Possess a secret clearance or ability to obtain.

Preferred Qualifications

Preference shown to candidates who possess a Master of Science in System Engineering from an ABET-accredited university, and/or have at least 2-4 years of direct systems engineering experience.

Preferred candidates will also have experience and/or working knowledge with:

• Demonstrated experience effectively leading a team of engineers.
• Demonstrated experience accurately estimating the engineering effort (i.e. hours) associated with Systems Engineering tasks.
• Understanding of the DoD acquisition processes and methods
• Experience supporting one or more DoD programs
• Object Management Group (OMG) Certified System Modeler Professional (OCSMP) certification
• INCOSE Systems Engineering Professional (SEP) certification (ASEP or CSEP)

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

September 8, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.