Defense Modeling Simulation Jobs in Franklin, TN

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers' mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Lead, Systems Engineer - Modeling & Simulation

Job Number: 42812

Job Location: Nashville, TN

Schedule: 9/80-Every other Friday off

Role is contingent upon Program award

Job Description:

ForceX is seeking an engineer to deliver mission-focused technical solutions from concept through deployment and sustainment. The role partners across disciplines to translate requirements into executable designs that meet performance, cost, and schedule objectives. This Systems Engineering role is focused on product and mission-system engineering, including requirements, architecture, integration, verification, and lifecycle technical execution. This level is a subject matter expert role with comprehensive job-area knowledge and deep project management capability.

The Lead, Systems Engineer - Modeling & Simulation role is focused on digital engineering, performance modeling, data analysis, and data-driven trade studies on VAMPIRE Counter-UAS product lines. The position helps the team understand system behavior, quantify uncertainty, and compare alternatives before committing to downstream design decisions. The role is intended for an engineer who can turn technical questions into structured analytical work and communicate results clearly to the IRAD team.

Essential Functions:

- Develop digital engineering artifacts that support system understanding and decision making.

- Build performance models to evaluate system behavior and sensitivities.

- Perform Monte Carlo analysis to assess uncertainty, margin, and risk.

- Conduct and document trade studies using analytical results.

- Coordinate assumptions, inputs, and outputs with cross-functional engineering stakeholders.

- Translate model results into actionable system-level recommendations.

- Maintain controlled analytical artifacts and supporting technical documentation.

- Execute engineering work products from requirements through verification and technical documentation.
- Collaborate with cross-functional teams to integrate hardware, software, and operational constraints into practical solutions.
- Conduct technical analysis, risk identification, and trade studies to support design decisions.
- Present technical status, issues, and recommendations in formal and informal reviews.
- Contribute to proposal, planning, and execution activities aligned to program milestones.
- Support compliance with customer, regulatory, and security requirements.
- Travel up to 25% to support integration, test, customer engagement, and program execution.
- Support work performed in a classified and or controlled environment.
- Perform technical planning, requirements decomposition, interface definition, and verification strategy for mission systems.
- Execute system integration, validation, and technical baselines across concept, design, fabrication, test, installation, operation, maintenance, and disposal.
- Lead or support design reviews, peer reviews, and technical interchanges.
- Produce and maintain system engineering artifacts including requirements traceability, risk registers, and verification evidence.
- Ensure system designs align with security and government compliance requirements.

Qualifications:

- Bachelor's Degree and minimum 9 years of prior relevant experience. Graduate Degree and a minimum of 7 years of prior related experience. In lieu of a degree, minimum of 13 years of prior related experience.
- Ability to obtain and maintain a DoD security clearance.
- 9+ years of experience in systems engineering methods across full lifecycle activities.
- 9+ years of experience with requirements management, risk management, and system integration and verification practices.

Preferred Additional Skills:

- Bachelor of Science in a STEM discipline preferred; Engineering preferred, Physics, Mathematics, and Computer Science acceptable.
- Demonstrated ability to work effectively in cross-functional engineering teams.
- Model-based systems engineering (MBSE) familiarity.
- Experience with multi-domain mission systems and secure architectures.
- Experience supporting government or defense technical reviews.
- Experience balancing technical, schedule, and cost constraints across system-level decisions.
- Ability to collaborate across software, hardware, mechanical, electrical, manufacturing, and program teams.
- Role scope expectation: Manages large, complex project initiatives of substantial importance with minimal oversight.
- Collaboration expectation: Communicates across organizational boundaries to explain and influence changes to technical practices and approaches

- Professional experience with analysis tool development & CM/DM

- Professional experience with SE analysis tools, such as MATLAB & Python

#LI-EB1

L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.