Senior Systems Engineer - MBSE/Simulink

Quest Defense Systems & Solutions, Inc.; Sterling (VA); On-site; USD 130,000 - 160,000; Full time

Benefits offered by this job

Relocation assistance

401(k) with employer match

Certification assistance

Job summary

Quest Defense Systems and Solutions seeks a Senior MBSE Systems Engineer to develop and validate GPS navigation algorithms using MATLAB/Simulink. You will run simulations, document derivations, and analyze data with statistical methods. Onsite work includes Cedar Rapids, IA; Fullerton, CA; and Sterling, VA with relocation assistance available.

The role emphasizes model-based development, lab contributions, and collaboration on mission-critical defense systems. U.S. citizenship is required.

Qualifications

• Bachelor’s degree in a STEM discipline with 5+ years of relevant experience, or an advanced STEM degree with 3+ years.
• Experience in MATLAB and Simulink.
• Experience in code optimization and numerical stability.
• Experience in Systems Engineering discipline.
• Ability to read and develop algorithm descriptions, mathematical expressions and derivations.

Responsibilities

• Test and validate navigation algorithms and models using MATLAB and Simulink.
• Develop tools and test infrastructure for model and algorithm testing.
• Analyze data using advanced mathematical and statistical techniques.
• Contribute to lab-based work on target products.
• Perform code reviews to improve quality.

Skills

MATLAB & Simulink proficiency

Data analysis

Model-based systems engineering

Testing & validation

Education

Bachelor's degree in STEM with 5+ years experience

Master's degree in related field

Tools

MATLAB

Simulink

Job description

We don’t just build technology—we engineer the future. From next-gen aerospace to cutting-edge defense systems, we tackle the toughest, mission‑critical challenges that keep people safe and push the limits of innovation. This is where problem-solvers, innovators, and big thinkers thrive.

We are seeking a Senior MBSE Systems Engineer. This position for an individual with educational and/or professional experience in the development of solutions to GPS Navigation Systems. This individual will be required to run and test modeling and simulation of algorithmic models using Simulink and MATLAB. The work is highly technical, and the individual must be comfortable with documenting equations, derivations, and generating plots in MATLAB. The individual must be comfortable with data and statistical analysis. In addition to Model-based Development work, the role will also include lab-based contributions on the target products.

Hiring in multiple locations: Cedar Rapids, IA. Fullerton, CA. Sterling, VA Relocation assistance is available

U.S. citizenship is required.

What You’ll Do

• Test and validate navigation algorithms and algorithmic models using MATLAB and Simulink.
• Develop tools and test infrastructure needed to perform comprehensive model and algorithm testing.
• Conduct analyses for system troubleshooting
• Improve code quality by performing code reviews and good software practices
• Analyze data using advanced mathematical and statistical techniques

Required Qualifications:

• Bachelor’s degree in a STEM discipline with at least five years of relevant experience, or an advanced STEM degree with at least three years of relevant experience.
• Experience in MATLAB and Simulink
• Experience in Code optimization and/or numerical stability
• Experience in the Systems Engineering discipline
• Experience in reading and developing algorithm descriptions, mathematical expressions and derivations, matrix manipulations, outlier analysis, and system level analysis
• Ability to work onsite in Cedar Rapids, Iowa.
• U.S. citizenship is required.

The successful candidate must be able to work on individual tasks under limited supervision, or with a team to achieve operational targets, and must have the ability to communicate and collaborate with parties within and outside of their own job function. Eventually, the candidate may be responsible for helping to provide guidance, coaching, and training to other employees within their job area.

Preferred Qualifications:

• Master’s degree in Systems Engineering, Electrical Engineering, Aerospace Engineering, Applied Mathematics, or a related discipline.
• Professional background specializing in performing complex statistical analysis and/or mathematical modeling
• Experience in performing data analysis and problem solving (e.g. anomaly investigation)
• Experience adopting and/or integrating emerging technologies (e.g., generative AI, automation platforms, digital assistants) into day-to-day operations for continuous improvement.

The QDSS Advantage:

At QDSS, our advantage is purpose-driven work, collaborative teams, and complex challenges that push boundaries and build lasting impact.You’llgrow your career while contributing to mission-critical programs that demand excellence and shape the future.

WhatYou’llFind Here

• Work That Matters – Next-generation, safety- and mission‑critical projects where your contributions have real‑world impact.
• GrowthThat’sSupported – Competitive compensation, employer‑matched 401(k), certificationassistance, and clear opportunities for advancement.
• A Culture That Works – A flexible, collaborative, and people‑first environment where teamwork, innovation, and balance are valued.

Benefits Include

• Competitive pay, comprehensive medical/dental/lifeand disability coverage, 401(k) with employer match, professional development support, and a flexible, friendly workplace.

Full compensation package is based on candidate experience and certifications

Pay Ranges

$130,000 - $160,000 USD

At Quest Defense Systems and Solutions, we don’t just build technology — we engineer the future. From next-generation aerospace solutions to cutting-edge defense systems, we tackle the toughest, mission‑critical challenges that keep people safe and push the boundaries of innovation. This is where problem-solvers, innovators, and visionary thinkers come together to shape the future. With over 25 years of aerospace and defense engineering expertise, our commitment to delivering high-quality, transformative solutions sets us apart — not just as an industry leader, but as a driving force for impactful change. Together, we’re not just leading the industry — we’re revolutionizing it.

Quest Defense provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

As set forth in Quest Defense Systems & Solutions, Inc.’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.