Software Development Engineer III (C++/Satellite Communications)

TL;DR

Software Development Engineer III (C++/Satellite Communications): Design, implement, and validate MAC control-plane software for TeraWave satellite communication links with an accent on radio-resource allocation, scheduling, QoS, mobility, and predictable-latency wireless networking. Focus on building protocol state machines, integrating software with PHY and modem systems, and solving timing, connectivity, congestion, and failure challenges across dynamic space-based networks.

Location: Greater Seattle Area. Applicants must be U.S. citizens or nationals, U.S. permanent residents, or lawfully admitted refugees or asylees.

Salary: $207,416.00–$290,381.70 base pay for California and Washington applicants; other site ranges may differ.

Company

hirify.global develops reusable space vehicles, systems, and space-based communications infrastructure, including the TeraWave satellite network.

What you will do

• Design, implement, and test MAC control-plane software for point-to-point and point-to-multipoint satellite links.
• Develop TDMA, demand-assigned access, admission control, scheduling, radio-resource allocation, QoS, flow-control, and link-adaptation components.
• Implement protocol state machines for link establishment, maintenance, reconfiguration, teardown, fault recovery, and mobility between beams, satellites, and gateways.
• Integrate MAC software with PHY implementations, modem hardware, networking data planes, telemetry systems, and hardware-accelerated functions.
• Build simulation, testing, and performance-analysis tools for mobility, fading, congestion, timing variation, and failure scenarios.
• Diagnose and resolve software, protocol, timing, and system-integration issues through design, code review, hardware integration, qualification, and deployment.

Requirements

• Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, or a related technical field.
• Four or more years of software-development experience in wireless networking, communication systems, embedded systems, or high-performance networking.
• Proficiency in C or C++ and concurrent or timing-sensitive software in Linux, real-time Linux, or RTOS environments.
• Experience implementing communication protocols, protocol state machines, resource schedulers, flow-control mechanisms, or QoS systems.
• Experience developing and debugging software interfacing with hardware, embedded platforms, networking systems, or communication devices.
• U.S. citizenship, national status, permanent residency, refugee status, or asylum status is required due to export-control regulations.

Nice to have

• Experience with MAC or link-layer software for satellite, non-terrestrial, cellular, fixed-wireless, or related communication platforms.
• Knowledge of TDMA, DAMA, OFDMA, radio-resource management, adaptive modulation and coding, ARQ/HARQ, admission control, or QoS scheduling.
• Experience integrating software with PHY implementations, FPGAs, DSPs, modems, or custom SoCs.
• Experience with multithreaded, asynchronous, event-driven, simulation, or high-performance packet-processing technologies.

Culture & Benefits

• Safety, collaboration, inclusion, and teamwork are core workplace values.
• Medical, dental, vision, life insurance, disability coverage, and paid parental leave.
• 401(k) with company matching of up to 5% and an Education Support Program.
• Stock options for regular employees working at least 20 hours per week.
• Up to four weeks of paid time off and up to 14 company-paid holidays.