EW Performance Modeling Systems and Software Engineer

Location: Nashua, New Hampshire, United States

Category: Engineering & Technology

Employment Type: Full-Time

Job Description

You don’t see it, but it’s there. Our employees work on the world’s most advanced electronics – from saving emissions in the City of Lights to powering the Mars Rover to protecting the F-35 fighter jet. At Electronic Systems, you’ll be among the brightest minds, working on the aerospace and defense industry’s most difficult problems. Drawing strength from our differences, we’re innovating for the future. And you can, too.
Our flexible work environment provides you a chance to change the world without giving up your personal life. We put our customers first – exemplified by our missions: “We Protect Those Who Protect Us®” and “We Innovate For Those Who Move The WorldTM.” Sound like a team you want to be a part of? Come build your career with us.

We are seeking a Systems Engineer with deep software expertise to join our Electronic Warfare system modeling team. In this role, you will design, build, and maintain high-fidelity simulation frameworks that run actual production EW software against emulated hardware and synthetic RF environments. You will work at the intersection of systems engineering, signal processing, and software development — contributing to a digital-twin-style capability that supports algorithm development, performance analysis, and iterative validation.

Key Responsibilities

• Develop and maintain containerized simulation pipelines that execute production EW software modules against simulated hardware and environmental inputs

• Build and extend RF simulation components including platform kinematics, sensor/effector models, propagation physics, and event-driven interaction frameworks

• Transition and integrate signal processing algorithms (e.g., from MATLAB or legacy codebases) into microservice-based simulation architectures

• Implement CI/CD pipelines supporting automated testing, simulation regression, and artifact generation

• Develop hardware/firmware emulation layers at appropriate fidelity levels (probabilistic and detailed signal path)

• Contribute to Monte Carlo and parameter sweep workflows for performance envelope analysis

• Collaborate with algorithm developers and systems engineers to validate simulation outputs against analytical references and measured data

You will be working on a majority greenfield modeling capability at the core of EW system development, not primarily maintaining legacy tooling, but building the infrastructure that future algorithm development and system validation will depend on. The technical problems span low-level systems programming, physics simulation, and distributed software architecture.

Required Education, Experience, & Skills

• BS in Computer Science, Electrical Engineering, or related field
• Strong proficiency in Rust and/or Python for performance-critical systems development
• Experience with containerization technologies (Docker, Docker Compose)
• Familiarity with microservice architectures and inter-process communication (e.g., Protocol Buffers, gRPC, NATS/ZeroMQ)
• Experience with CI/CD tooling (GitLab CI/CD or equivalent)
• Strong fundamentals in algorithms and systems programming

Preferred Education, Experience, & Skills

• Experience with signal processing concepts or RF systems (e.g., radar, EW, communications)
• Familiarity with embedded systems, hardware interfaces, or SWIL/HWIL testing environments
• Exposure to distributed systems concepts (consensus algorithms, sharded architectures)
• Experience with Foreign Function Interfaces (FFIs) for cross-language integration
• Background in mathematics, including linear algebra and probability

Pay Information
Full-Time Salary Range: $97008 - $164914

Please note: This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

Employee Benefits: At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics.


About BAE Systems Electronic Systems
BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it’s what we do at BAE Systems. Working here means using your passion and ingenuity where it counts – defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team—making a big impact on a global scale. At BAE Systems, you’ll find a rewarding career that truly makes a difference. Electronic Systems (ES) is the global innovator behind BAE Systems’ game-changing defense and commercial electronics. Exploiting every electron, we push the limits of what is possible, giving our customers the edge and our employees opportunities to change the world. Our products and capabilities can be found everywhere – from the depths of the ocean to the far reaches of space. At our core are more than 14,000 highly talented Electronic Systems employees with the brightest minds in the industry, we make an impact – for our customers and the communities we serve.

This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.