FAST Labs - Senior Principal II Software Engineer - C++ CUDA
BAE Systems· Defense & Space· Oct 23, 2026 · 5d ago
Merrimack, New Hampshire
In office
Full-time
Principal
$147K–$249K
6+ years exp
Job description
Job Description Join our dynamic team of innovators and shape the future of defense technology. We’re seeking highly motivated and skilled software engineers passionate about leveraging the power of C++ and CUDA to solve challenging real-world problems. If you’re a creative problem-solver, a lifelong learner, and thrive in a collaborative environment, we encourage you to apply. We value proactive individuals who are adaptable and excited to tackle new challenges.
Accelerate Innovation with GPU Computing in FAST Labs**
The BAE Systems' FAST Labs team conducts cutting-edge research and development to create advanced electronic solutions for the U.S. military. We focus on: • Advanced Electronics
• Autonomy
• Sensors & Processing
• Artificial Intelligence
• Electronic Warfare
• Cyber Operations & Defense
We foster a “what’s next” mentality, driving the creation of solutions that enhance situational awareness, accelerate decision-making, and improve operational efficiencies.
Join our team as a Senior Principal II Software Engineer in FAST Labs Engineering
As a key member of our team, you will drive the development of high-performance software leveraging the power of GPU computing. Your work will involve: • Designing and implementing high-performance algorithms optimized for GPU architectures using CUDA.
• Developing and maintaining CUDA kernels for signal processing, image processing, and other computationally intensive tasks.
• Collaborating with cross-functional teams – including hardware engineers, signal processing experts, and systems architects – to define requirements and deliver innovative solutions.
• Designing and evaluating complex software architectures, ensuring they meet customer requirements and performance goals.
• Developing software applications in C++, Python, and MATLAB, integrating GPU-accelerated components with larger systems.
• Applying DevSecOps and CI/CD practices to ensure software quality and rapid iteration.
• Profiling and optimizing CUDA applications to maximize performance and efficiency.**
• Developing software solutions that interface with hardware devices such as FPGAs, GPUs, and embedded SoCs.
• Developing software for RF, Radar, EO/IR, Electronic Warfare, or Software Defined Radio systems, with a focus on GPU acceleration of core algorithms.
Grow Your Career with a Purpose**
At BAE Systems, we’re committed to helping you achieve your full potential. You’ll be part of a high-performing team dedicated to protecting those who protect us and innovating for a better future. We invest in your professional development with comprehensive training, mentorship, and opportunities for continued education. We also prioritize a healthy work-life balance and foster a collaborative and inclusive culture.
Work Environment
This role requires 100% on-site work at a BAE Systems facility due to the need for consistent, in-person collaboration and secure access to sensitive information. Occasional domestic travel may be required to support integration and test events. -KS1
Current BAE Systems employees are ineligible for sign-on bonuses. Required Education, Experience, & Skills • Active Top Secret Clearance
• Bachelor's Degree in computer science, computer engineering, or a related technical field
• 6+ years of professional software development
• Expert-level proficiency in C++11 (or later) with a strong emphasis on performance optimization and parallel programming.**
• Expert-level experience with CUDA, including kernel development, memory management, and performance analysis.**
• Expert-level experience developing for and operating in a Linux Environment
• Knowledge of software architectures, industry best practices, and emerging software technologies
• Excellent leadership, communication, and collaboration skills
• Ability to work in a fast-paced environment and adapt to changing requirements
• Proven project management skills with ability to deliver high-quality software products on time
Preferred Education, Experience, & Skills • Master's Degree or PhD in computer science, computer engineering, or a related technical field
• MATLAB Experience is a plus
• Development experience with Python
• Experience with GPU compute frameworks beyond CUDA (e.g., OpenCL)
• Experience in a rapid prototype environment
• Real-time, embedded, multi-threaded, low latency development and/or Linux application development
• Experience with DevSecOps, Continuous Integration/Continuous Deployment (CI/CD), or automated release management
• Experience with containerization (e.g. Podman/Docker) and developing software in containerized environments
• Experience developing applications that cover several of: distributed, multi-threaded, real time, embedded, low latency, DSP, device control, or military systems.
• Knowledge of Digital Engineering methodologies and Model-Based Systems Engineering (MBSE) practices.
Pay Information
Full-Time Salary Range: $146670 - $249330
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, Inc. BAE Systems, Inc. is a defense, aerospace, and security company headquartered in Falls Church, Virginia, with more than 40,000 employees worldwide. We serve, supply, and protect those who protect us. As one of the most geographically diverse international defense companies, we deliver a full range of products and services spanning air, land, maritime, space, and cyber, including advanced electronics, intelligence solutions, and dedicated customer support.
Our culture is performance-driven and values-led, built on curiosity, creativity, and collaboration. Purpose isn't a tagline here. It's what drives us. We're developing breakthrough technologies that defend national security and make a lasting impact on our communities and our planet. When you join BAE Systems, you're not just building a career. You're contributing to a mission that truly matters.
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.
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Benefits
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Dental
Vision
401(K)
Paid Time Off
Professional Development