Systems Engineer II

Twenty-Six Defense; Merrimack (NH); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

9/80 schedule

401(k) program

Comprehensive medical/dental/vision

Life insurance and AD&D

Job summary

Twenty-Six Defense is seeking a Systems Engineer II to participate in design, development, testing, and analysis of complex systems across the full product lifecycle. The role emphasizes applying engineering principles and collaborating with cross‑functional teams to deliver robust solutions for defense, homeland security, and aviation markets.

The candidate will assist in requirements, architecture, modeling, prototyping, and performance evaluation while interfacing with customers and project

Qualifications

• Bachelor’s degree in Engineering, Computer Science, or related technical field.
• 2+ years of related experience.
• Experience with C/C++ software development.
• Candidate must hold or be able to obtain a SECRET security clearance.
• Experience in embedded, real-time, or hardware-adjacent software environments preferred.
• Experience in defense environments is a plus.

Responsibilities

• Assist system engineers with requirements analysis, systems architecture, and design.
• Support prototyping, data analysis, and performance validation.
• Contribute to system integration, testing, and verification.
• Lead technical contributions and systems engineering activities.
• Coordinate with internal/external project teams and customers.

Skills

C/C++ development

Embedded/RTOS

Security clearance

Communication skills

Customer interaction

Education

Bachelor’s degree in Engineering/CS or related

Tools

Cameo/Doors

Job description

Company Information

Twenty-Six Defense, headquartered in Fort Worth, Texas, is a leading provider of high-performance products, system solutions, and aftermarket support services focusing on the defense, homeland security, and commercial aviation markets. With facilities throughout the U.S., Twenty-Six Defense supports those who contribute to the national security of the United States. Twenty-Six Defense is wholly owned by Elbit Systems Ltd. (NASDAQ: ESLT and TASE: ESLT), a global high-technology company engaged in a wide range of programs for innovative defense and commercial applications.

Company Information

Twenty-Six Defense, headquartered in Fort Worth, Texas, is a leading provider of high-performance products, system solutions, and aftermarket support services focusing on the defense, homeland security, and commercial aviation markets. With facilities throughout the U.S., Twenty-Six Defense supports those who contribute to the national security of the United States. Twenty-Six Defense is wholly owned by Elbit Systems Ltd. (NASDAQ: ESLT and TASE: ESLT), a global high-technology company engaged in a wide range of programs for innovative defense and commercial applications.

Job Summary

The Systems Engineer II participates in the design, development, testing, and analysis of products, equipment or processes; and performs a variety of assignments, under close guidance, requiring the application of basic engineering and scientific principles and techniques. Systems engineering covers the full product lifecycle, from concept through development and deployment, and ultimately, disposal. It concentrates on the design and application of the whole system as distinct from the parts. It involves looking at a problem in its entirety, taking into account all the facets and all the variables and relating the social to the technical aspect. The incumbent will assist in the design, development, testing, and analysis of products, equipment or processes; and perform a variety of assignments, under close guidance, requiring the application of basic engineering and scientific principles and techniques. This role will find analytical skills and ability to plan and lead system engineering activities will be challenged on a daily basis.

Responsibilities And Tasks

• Assist system engineers with subjects related to all aspects of systems engineering, including, but not limited to:
  • Requirements analysis
  • Systems architecture and detailed design
  • Simulation and modeling of complex systems
  • Preliminary and Detailed design
  • Prototyping
  • Data Analysis and Process Improvement
  • Integration and testing/verification
  • System troubleshooting
• Provide individual technical contribution and systems engineering leadership in the development of advanced systems
• Work assignments through the development cycle from concept development, system trade-off analysis, system requirements definition and flow down, system architecture design, system integration and test…all the way down to evaluation of system performance at both the component and system level.
• Support engineering project teams in the pursuit of new business, including the definition of advanced design concepts to address customer needs, preparation of engineering inputs, cost estimates and schedules for proposals.
• Utilize and maintain existing analytical models, develop new models, design tests, and validate performance simulations using standard or developed test equipment.
• Conduct research and prepare technical documentation based on findings, to include recommendations or alternative proposals for action.
• Work with variety of stakeholders including interfacing with internal and external project teams, company personnel (Engineering, Operations, Program Management, Business Development), and the customer community.

Education, Experience, License, Or Certification

• Bachelor’s degree in Engineering, Computer Science, or related technical field
• 2 or more years of related experience
• Experience with C/C++ software development
• Candidate must hold or be able to obtain a SECRET security clearance
• Experience in embedded, real‑time, or hardware‑adjacent software environments preferred
• Experience working in classified or defense environments is a plus
• Experience supporting integrated hardware‑software systems beneficial

Skills And Abilities

• Requires excellent written and oral communication skills, the ability to understand and follow complex, detailed instructions, and the ability to work both independently and in a team environment.
• Must be able to approach technical problems in a logical and scientific manner.
• Must be flexible and able to handle multiple priorities, and be able to work for short to moderate periods of time without direct supervision.
• Advantage - Have knowledge and experience in the development of Concept(s) of Operation, requirements development and management using dedicated tools (Cameo/Doors), conceptualization and analysis of complex systems architecture design through modeling, system/subsystem integration/test planning and execution, and qualification testing
• Desire to learn new skills; examples:
  • RF (radar, microwave comms, etc)
  • Power (AC 120/240V, DC 5/12/24/28/48V, conversion, distribution)
  • IT and networking
  • Scripting/automation of tasks
• Ability to take in customer needs and scenarios, and develop solutions
• Demonstrated success in present field (electrical/mechanical/SW, etc) - specific accomplishments beyond team success
• Experience/comfort/ease talking with customers/end users
• Can clearly articulate plans and actions taken
• Thinks logically through new/unfamiliar scenarios

Travel/Physical Requirements

• Ability to travel 20% to support projects.
• Travel; outdoor field work will be required at different weather conditions
• Must be a “US Person” and have ability to obtain security clearance. Existing clearance is an advantage.

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
• Paid Parental Leave
• Generous Employee Referral Program
• Voluntary Benefits Available: Long-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. Twenty-Six Defense is an equal opportunity employer as to all protected groups, including protected veterans and individuals with disabilities.

• For Virginia-based positions only* In accordance with Virginia DOL requirements, the listed salary range reflects the anticipated base pay range for this role. Actual compensation will be determined based on factors including skills, experience, education, certifications, business needs, internal equity, and geographic location. Compensation may vary in different locations based on market conditions and cost-of-labor considerations.