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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 Advanced Development Organization is seeking an entry-level to early career systems engineer specializing in Value-Driven Design (VDD), Model-Based Systems Engineering (MBSE), and parametric lifecycle modeling to support a classified, high‑speed system portfolio. The successful candidate will apply digital engineering frameworks to capture stakeholder requirements and translate mission-critical engineering parameters into structured architecture baselines that feed decision‑quality trade studies.

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!

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Primary Responsibilities.

• Draft and maintain EARS‑formatted requirement statements and attributes; produce requirement‑to‑verification traceability and test artifacts (procedures, reports).
• Create and maintain SysML MBSE artifacts including Logical, Physical, and Allocative architecture views; document allocations of performance, cost, reliability, and verification to physical elements.
• Build and maintain parametric manufacturing and O&S models (Excel/Python/MATLAB) to quantify lifecycle impacts of design alternatives and support sensitivity analysis.
• Produce trade studies, decision briefs, and internal white papers that quantify warfighter utility and lifecycle cost/benefit.
• Support integration, verification planning, and mapping of verification activities to requirements; participate in test planning and reporting.
• Operate effectively in a matrixed environment; transition between programs as required.
• Work full time onsite in a controlled area; comply with SCIF and program security procedures; travel approximately one week per quarter.

Basic Qualifications.

• BS in Systems, Aerospace, Mechanical, Electrical, Industrial, Computer Engineering, Physics, or related STEM discipline from an ABET‑accredited institution (or equivalent). Dual majors and aerospace backgrounds encouraged.
• Entry-level to early career. Candidates with 0 years of experience are appropriate; hiring band flexible for recent graduates with strong artifacts.
• U.S. Citizen eligible for Top‑Secret clearance; willing to accept TS sponsorship at hire. (Position requires ability to obtain and maintain required clearance.)
• Familiarity with SysML concepts and MBSE principles; basic scripting or modeling in Python or MATLAB; demonstrated technical writing ability.
• Able to perform in a collaborative, multidisciplinary engineering environment and communicate effectively.
• Travel: 10-20% travel, remainder will be onsite.

Preferred Qualifications.

• Coursework or project experience in high‑speed dynamics, aerothermodynamics, propulsion, instrumentation, or related aerospace topics.
• Exposure to Cameo/MagicDraw, DOORS, SIMIO, or other MBSE and requirements tools.
• Experience with parametric cost modeling, Monte Carlo or sensitivity analysis.
• ASEP/INCOSE or OMG SysML training (funded/reimbursed by employer is acceptable).
• Prior internship or capstone work producing requirements, MBSE views, or lifecycle models.
• Familiarity with DoD acquisition lifecycle and program processes.

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:

Pay Range:

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.