Senior Satellite Simulation & Test Software Engineer - TeraWave

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

Base pay for Washington applicants: $197,529.00–$276,539.55 annually. Other site ranges may differ.

Company

hirify.global develops reusable space vehicles and systems and is building TeraWave, a multi-orbit satellite communications network with optically interconnected LEO and MEO satellites.

What you will do

• Design, develop, and implement simulation software for testing and verifying TeraWave flight software.
• Build scalable simulation environments for software-only, hardware-in-the-loop, real-time, and spacecraft assembly, integration, and test activities.
• Develop and integrate models covering nominal and off-nominal spacecraft operating scenarios.
• Collaborate with hardware, systems, autonomy, and test engineers on requirements, interfaces, and subsystem behavior.
• Support software integration, verification, validation, on-orbit operations, and spacecraft troubleshooting.
• Mentor junior engineers and contribute to technical architecture and team development.

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, Aerospace Engineering, or a related technical field.
• 10+ years of experience in spacecraft software, simulation software, or embedded software development.
• Experience architecting simulation environments and complex embedded or flight software systems.
• Strong programming skills in C, C++, and Python, with object-oriented design and modular software layering.
• Experience with unit testing, IPC, Git, CI/CD, containerized environments, and mission-critical software verification and validation.
• Must meet U.S. export-control eligibility requirements: U.S. citizenship or nationality, U.S. permanent residence, or lawful admission as a refugee or asylee.

Nice to have

• Experience with NASA Trick, orbital mechanics, propagation models, CCSDS standards, NASA cFS, or spacecraft FDIR.
• Knowledge of GN&C sensors and actuators, RTOS platforms, precision timing, and GPS-disciplined synchronization.
• Experience with flight software interfaces and protocols including discrete I/O, TCP/IP, UDP, CAN, I2C, SPI, and RS-422/485.
• Familiarity with static analysis tools and MISRA C/C++ coding standards.

Culture & Benefits

• Safety-focused, collaborative, and inclusive engineering environment.
• Medical, dental, vision, life insurance, and disability coverage.
• 401(k) with company match of up to 5%.
• Paid parental leave, up to four weeks of paid time off, and up to 14 company-paid holidays.
• Education Support Program and stock options for eligible regular employees.