Software Development Engineer in Test (SDET)

Zetier seeks Software Development Engineers in Test (SDET) to design, build, and maintain scalable automated testing capabilities for embedded hardware, cyber platforms, and operational software systems. This role focuses on developing robust test infrastructure, improving product reliability, and enabling continuous validation across hardware and software solutions. Candidates will develop automated validation frameworks, integrate testing into CI/CD pipelines, and support verification activities spanning low-level firmware, networking systems, and mission-driven software capabilities. Work includes functional, integration, regression, and hardware-in-the-loop testing aligned with quality, operational effectiveness, and compliance objectives.

5+ years experience in software development or test engineering

Strong programming experience in Python, C/C++, and/or Rust

Experience deploying automated test frameworks (e.g. pytest, Robot)

Experience testing embedded or Linux-based systems platforms

Hands-on experience integrating testing into CI/CD pipelines

Familiar debugging complex HW/SW system interactions

Comfortable writing clear technical documentation (e.g. test reports)

Strong communication skills across engineering and customer teams

Active U.S. security clearance

Experience with hardware-in-the-loop (HIL) and device automation

Experience testing embedded systems, networking devices, or mobile

Experience with containerization (e.g. Docker, Kubernetes, QEMU)