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Software Integration & Test Engineer Verified today

Portal Space Systems · Bothell, WA · Production · first seen 2026-07-30

What you will do

  • Develop and own the execution and testing framework for spacecraft software and firmware, including HITL test cases and environments
  • Debug and resolve software and firmware issues across avionics and payload systems, driving root-cause resolution with vendors
  • Review and guide software architecture (state machines, error handling, ICDs, vendor scopes) to ensure reliability and mission alignment
  • Partner with Avionics Engineers to co-develop HITL and ICD infrastructure, enabling automated regression and CI/CD pipelines
  • Own software and firmware integration from first power-on to flight-ready, ensuring subsystem bring-up and validation
  • Build and expand HITL environments to support edge cases, fault injection, and full mission simulation
  • Develop automated frameworks for regression, logging, and fault coverage to drive continuous validation
  • Own build, delivery, and versioning pipelines that ensure mission-ready software

What we are looking for

  • 7 or more years of embedded or spacecraft software development and integration experience, or a Master's degree with equivalent hands-on depth
  • Experience with spacecraft software integration, including avionics, ADCS, power, or payload subsystems
  • Familiarity with real-time operating systems (RTOS), embedded Linux, or spacecraft flight software frameworks such as cFS, FreeRTOS, or VxWorks
  • Knowledge of common spacecraft communication protocols such as CAN, UART, or Ethernet
  • Strong proficiency in C/C++ or Python for embedded software development and test automation
  • Hands-on experience with hardware-in-the-loop (HITL) test environments or embedded system bring-up
  • Background in fault injection, FDIR concepts, or fault-tolerant software design
  • Demonstrated ability to lead cross-functional software validation efforts or mentor junior engineers
  • Ability to work in a fast-paced, highly collaborative startup environment with high levels of ownership
Software Integration & Test Engineer at Portal Space | Flight Proven Space