Principal Systems Engineer - SBMC

Elbit Systems of America, LLC; Merrimack, Northern (NH, KY); Hybrid; USD 110,000 - 170,000; Full time

Benefits offered by this job

9/80 schedule

401(k) program

Medical/Dental/Vision insurance

Life Insurance

Flexible PTO

Employee Referral Program

Voluntary Benefits

TRICARE Supplement

Job summary

Elbit Systems of America, LLC in New Hampshire seeks a Principal Systems Engineer to lead requirements analysis, architecture design, and system integration across defense programs.

You will manage DOORS-based requirements, develop master test plans, mentor junior engineers, and help drive program schedules and cost estimates through all lifecycle phases.

Qualifications

• Master’s degree plus 7 years’ experience OR Bachelor’s degree plus 9 years’ experience.
• Advanced DOORS requirements management training.
• Systems Engineering Simulation and Modeling concepts.
• Systems Engineering methods and procedures.

Responsibilities

• Perform requirements management, analysis, and allocations using DOORS.
• Conceptualize, analyze, design, and oversee complex systems-level architecture.
• Perform modeling and simulation at the system level.
• Develop systems specifications, master test plans, and artifacts.
• Lead cost estimates to support engineering activities.
• Mentor entry-level engineers.

Tools

DOORS requirements management

Microsoft Office

Microsoft Projects

Mathlab

Visio

Other systems engineering tools

Job description

Job Description

Posted Thursday, August 20, 2026 at 4:00 AM

Company Information:

Elbit America is a leading provider of high-performance products, system solutions, and support services focusing on the defense, homeland security, commercial aviation, and medical instrumentation markets. With facilities throughout the United States, Elbit Systems of America is dedicated to supporting those who contribute daily to the safety and security of the United States. Elbit Systems of America, LLC is wholly owned by Elbit Systems Ltd. (NASDAQ: ESLT and TASE: ESLT), a global high-technology company engag ed in a wide range of programs for innovative defense and commercial applications. For additional information, visit: ElbitAmerica.com or follow us on YouTube .

Job Summary:

The Principal Systems Engineer performs requirements analysis and management, technical planning, systems-level design, systems integration, verification and validation, cost and risk management, and supportability and effectiveness analyses for total systems. Also performs functional analysis, timeline analysis, detailed trade studies, and requirements interface definition studies to translate customer requirements into systems specifications. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance, and disposal. Ensure the logistical and systematic conversion of customer or product requirements into total system solutions that acknowledge technical, schedule, and cost constraints.

Responsibilities and Tasks:

• Perform requirements management, analysis, and allocations using tools such as DOORS.
• Conceptualize, analyze, design, and oversee complex systems-level architecture design.
• Perform modeling and simulation at the system level.
• Recommend tools to improve systems engineering design of a product and procedures.
• Develop systems specifications, master test plans, and other necessary artifacts.
• Provide inputs into the integrated master schedules and track program progress.
• Generate systems engineering artifacts in support of each program.
• Lead cost estimates to support engineering activities.
• Assist in verification and validation responsibilities.
• Fully understand internal systems engineering procedures and mentor entry-level engineers.
• Other related duties assigned by supervisor.

Education, Experience/Knowledge & License/Certification:

• Specific Degree Field Required: Aeronautical, Computer Science, Electrical, Electronic, Mechanical, Software or Systems Engineering.
• Master’s degree plus 7 years’ experience OR Bachelor’s degree plus 9 years’ experience.
• Training Prerequisites (Within One Year of Taking Position):
  • ESD
  • Safety Training, as dictated by the Safety Department
• Advanced DOORS requirements management training
• Systems Engineering Simulation and Modeling concepts
• Systems Engineering methods and procedures

Skills and Abilities:

• DOORS requirements management tool suite.
• Microsoft Office including the use of Excel and other desktop tools.
• Microsoft Projects.
• Systems-level analysis tools such as Mathlab or equivalent.
• Systems-level block diagram capture tools such as Visio.
• Other related systems engineering tools.

Here Are Some of the Great Benefits We Offer:

• Most locations offer a 9/80 schedule, providing every other Friday off
• Competitive compensation & 401(k) program to plan for your future
• Robust medical, dental, vision, & disability coverage with qualified wellness discounts
• Basic Life Insurance and Additional Life & AD&D Insurances are available
• Flexible Vacation & PTO
• Generous Employee Referral Program
• Voluntary Benefits Available: Longer Term Care, Legal, Identity Theft, Pet Insurance, and more
• Voluntary Tricare Supplement available for military retirees

This job description does not list all the duties of the job. You may be asked by your supervisors or managers to perform other duties. The employer has the right to revise this job description at any time. The job description is not an employment contract. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this position. Elbit America is an equal opportunity employer as to all protected groups, including protected veterans and individuals with disabilities.