Senior Software Engineer - 5G Devices

About usOne team. Global challenges. Infinite opportunities. At Viasat, we're on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We're looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team.What you'll doThe Viasat Access Edge Terminal Software team is responsible for the design, development, delivery and support of software running on embedded satellite terminal products (Ka-band, L-band, 5G) that are used in aviation, maritime, residential and other sectors.We are seeking an 5G Devices Senior Software Engineer to design and develop modular software platforms for user equipment (UE) and customer premises equipment (CPE). This role focuses on device-side software architecture, integrating industry-leading 5G chipsets with custom satellite and networking capabilities to create hybrid connectivity solutions for various markets including automotive, aviation, and maritime.Note - This position focuses on device/UE software architecture and is distinct from RAN (gNodeB/base station) or 5G Core network roles. Candidates should have device-side, client-side, or CPE development experience rather than network infrastructure expertise.The day-to-dayModular Software Architecture & DesignDesign and implement modular software architectures with reusable building blocks, for devices that operate on NTN with Viasat's satellitesDevelop software abstraction layers (HAL) and middleware that decouple application logic from modem hardware implementationsCreate flexible, configurable software frameworks that support multiple device variants (many devices could have capabilities in addition to 5G, based on the target market), form factors, and deployment scenariosDefine clear interfaces and APIs between software modules to enable independent development, testing, and evolution of componentsBalance architectural flexibility with performance requirements in resource-constrained embedded environments5G Chipset Integration & Device Driver DevelopmentIntegrate 5G modem solutions from industry-leading vendors (Qualcomm, MediaTek, Intel) into device platforms and develop reference designsDevelop and maintain device drivers within the Linux kernel that support modem interfaces used in 5G technology (PCIe, USB, SDIO, UART)Implement low-level software to control modem initialization, configuration, power management, and runtime behaviorWork with vendor Board Support Packages (BSP) and customize them for Viasat's specific hardware and use case requirementsResolve challenging hardware-software integration faultsOptimize performance for latency, throughput, power consumption, and system stabilityReference Design DevelopmentDesign and maintain reference software architectures that serve as templates for partner-developed devicesCreate comprehensive SDK packages including libraries, sample code, documentation, and build tools for OEM/ODM partnersDevelop

Created: 2026-03-16