Senior Systems Architect – Space & High-Speed Modem Solutions

Viasat; Tempe, Carlsbad (AZ, CA); On-site; USD 176,000 - 264,000; Full time

Job summary

Viasat is seeking a seasoned systems architect to lead the development of high-speed modem solutions for space, optical, and terrestrial networks. You will own system architecture, requirements, and technical leadership across multidisciplinary teams, interfacing with customers and subcontractors.

The role emphasizes end-to-end design, validation, and risk management, with opportunities to contribute to major design reviews and program cadence across key milestones.

Qualifications

• Experience developing complex modem algorithms and system architectures.
• Proficient in MATLAB, Python, C, or C++ for modeling and verification.
• Experience with FPGA/ASIC modem implementations and integration.

Responsibilities

• Define and maintain end-to-end modem and communications architectures.
• Manage system and subsystem requirements with traceability.
• Lead trade studies on waveform design and implementation approaches.
• Provide technical leadership across FPGA, ASIC, hardware, software, and systems teams.
• Coordinate internal and subcontractor modem development activities.
• Interface with customers and support technical reviews.
• Lead system integration, verification, and validation activities.
• Identify and manage technical risks and margins.
• Support major design reviews and proposal activities.
• Develop Basis of Estimates (BOEs) and maintain program milestones.

Skills

Timing recovery

Frequency acquisition

Phase recovery

FEC

DSP

FPGA/ASIC experience

Leadership

Customer communication

Modem architectures

Education

Bachelors in Electrical/Computer Engineering

Master's degree preferred

Tools

MATLAB

Python

C

C++

Job description

Viasat is seeking a seasoned systems architect to lead the development of high-speed modem solutions for space, optical, and terrestrial networks. You will own system architecture, requirements, and technical leadership across multidisciplinary teams, interfacing with customers and subcontractors.

The role emphasizes end-to-end design, validation, and risk management, with opportunities to contribute to major design reviews and program cadence across key milestones.