Software Engineer, Payload (GNSS-R) at Spire
Singapore / Glasgow, SC
As a GNSS-R payload software engineer at Spire, you will be part of a team laser-focused on delivering the critical data powering weather prediction models worldwide, by leveraging GPS / GNSS technology and advanced signal processing techniques in concert with Spire's constellation of nanosatellites. You will build systems to collect and process GNSS signals in real-time, and you will have both the freedom and the responsibility to ensure that they are engineered to survive the harshest of environments: the vacuum of space. If you have both the drive to write high-performance software with a global impact, as well as a mastery of building rock-solid embedded systems, we'd love to hear from you.

Responsibilities of your role:

Implementing real-time digital signal processing algorithms for GNSS and testing them on a custom embedded board
Implementing/Testing the onboard data handling architecture with coordination with other payloads and the satellite bus.
Implementing/testing low-level data transfer and processing functions that interact with the FPGA, RF front end, and peripheral sensors.
Supporting the on-ground testing campaign through the documentation/execution/analysis/debug phases.
Supporting commissioning and operation of payload after launch.
Validating on-orbit performance of the payload by analyzing observation data and satellite telemetry.

Qualifications / Experience:

Five or more years of hands-on experience working with C/C++ on large-scale software projects
Familiarity with Linux, and system profiling tools like ptrace or strace
Strong data analysis skills (statistics, hypothesis testing, data visualization)
A detail-oriented personality; careful, methodological, and persistent in tracking down problems
Motivation for contributing to the development of a payload instrument that collects RO weather data
Strong candidates will also possess skills in one or more of the following areas:
Experience designing an embedded Linux system, by using e.g. Buildroot / Yocto, or by customizing an existing distribution, and familiarity with bootloaders such as U-boot
Experience with designing or implementing GNSS/GPS/GPS-RO/GNSS-R systems
Experience in any field related to radio science, eg, RF design, EMI diagnosis/mitigation, etc.
Experience with FPGA / digital circuit design
Experience with Bash, Python, Ruby, Matlab, and/or Octave
Experience writing and/or troubleshooting Linux driver/Linux kernel code
Experience of developing spacecraft payload/bus components
Experience in systems engineering, covering the design, implementation, verification, and operation phases