Principal Systems Engineer - Algorithms and Systems

What you’ll do

Join a fast-paced team within Viasat’s Government as a Principal Systems Engineer. In this role, you will serve as a senior technical leader for advanced communication and sensing systems. You will:

• Lead system‑level architecture, design, and analysis for advanced communication and sensing systems, ensuring robust performance across diverse mission scenarios.
• Lead the development and validation of algorithms in signal processing, digital communications, and control/estimation for mission‑critical applications.
• Drive waveform design and adaptation, including trade studies and performance analysis to shape innovative solutions for emerging technologies.
• Collaborate across disciplines—including systems engineering (requirements), firmware, software, and integration & test—to deliver integrated solutions from concept through deployment.
• Provide technical direction across programs: define technical roadmaps, identify risk areas early, and guide mitigation strategies to keep development aligned with customer and stakeholder needs.

You’ll be at the center of algorithmic development and system integration for complex systems. Your responsibilities will include:

• Translating mission objectives into end-to-end technical solutions, ensuring alignment with requirements and performance goals.
• Leading modeling and simulation efforts to support architecture decisions, system trades, performance prediction, and optimization.
• Guiding algorithm implementation in firmware and software, bridging theoretical models with practical deployment.
• Participating in system bring-up and integration, troubleshooting and optimizing performance during hardware/software integration phases.
• Partnering with analysis and requirements teams to maintain consistency and traceability throughout the development lifecycle.
• Mentoring engineers and leading technical reviews to strengthen engineering rigor and elevate team execution.

• Master’s or Ph.D. in Electrical Engineering, Computer Engineering, or related discipline, with emphasis on Control Theory, Signal Processing, and/or Digital Communications.
• 15+ years of experience in algorithmic system design, modeling/simulation, and deployment for complex systems.
• Proficiency in programming for algorithm development and simulation (e.g., C/C++, MATLAB, Python).
• Deep expertise in RF systems and waveform design, including trade studies and performance analysis.
• Demonstrated ability to perform system‑level analysis, translating high‑level requirements into actionable technical designs and implementation plans.
• Strong communication skills, capable of delivering technical briefings and collaborating across multi‑disciplinary teams.
• U.S. citizenship required for a U.S. Government position.
• Active Top Secret clearance within the last 2 years required, and willingness to travel up to 35%.

• Hands‑on experience with digital hardware platforms (processors, memory, FPGAs/CPLDs, microcontrollers, networking interfaces).
• Familiarity with systems engineering processes, including requirements flow‑down, verification, and validation.
• Experience collaborating with geographically distributed teams, driving integration across hardware, software, and algorithmic domains.
• Background in modeling and simulation tools supporting trade studies and performance optimization for complex system architectures.
• TS/SCI or SAP access (if applicable to program needs).

$ - $ per year. For specific work locations within San Jose, the San Francisco Bay area and New York City metropolitan area, the base pay range for this role is $- $ per year.

At Viasat, we consider many factors when it comes to compensation, including the scope of the position as well as your background and experience. Base pay may vary depending on job‑related knowledge, skills, and experience. Additional cash or stock incentives may be provided as part of the compensation package, in addition to a range of medical, financial, and/or other benefits, dependent on the position offered.

Learn more about Viasat’s comprehensive benefit offerings that are focused on your holistic health and wellness at

Viasat is proud to be an equal opportunity employer, seeking to create a welcoming and diverse environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, ancestry, physical or mental disability, medical condition, marital status, genetics, age, or veteran status or any other applicable legally protected status or characteristic.