HITL Test Infrastructure Engineer — Shape Flight‑Critical Validation

Cantos Ventures; Allen (TX); On-site; USD 120,000 - 155,000; Full time

Benefits offered by this job

Equity participation

4 weeks PTO + holidays

Comprehensive health benefits (medical

Parental leave

$100 monthly fitness stipend

Onsite EV charging

Catered meals and stocked kitchen

Job summary

Castelion is building fast, scalable HITL infrastructure for embedded software verification on flight-critical hardware. You will architect and own the HITL stack, develop automation tools, and collaborate across hardware, firmware, and software domains to accelerate development velocity and quality.

You will design automated test execution strategies, integrate with Kubernetes/CI/CD, and drive reliability and scalability across engineering teams.

Qualifications

• Requires Bachelor's degree or equivalent in a technical field.
• Experience with Python-based test tooling.
• Experience building automated test frameworks (pytest/Robot Framework).
• Familiarity with embedded software life cycle including flashing, booting, and runtime validation.
• Experience with hardware debug interfaces (serial, JTAG, SWD).
• Basic reading of schematics and Linux development experience.
• Knowledge of Kubernetes, containers, or modern CI/CD pipelines.
• Ability to troubleshoot across hardware, firmware, software, and infrastructure.

Responsibilities

• Design, develop, and own HITL test infrastructure for embedded software verification.
• Build scalable HITL test stations for microcontrollers, FPGAs, GPUs, and custom hardware.
• Develop automated test frameworks to verify loading, boot sequences, runtime performance, and behavior.
• Integrate HITL into Kubernetes and CI/CD workflows to reserve hardware and run tests.
• Create Python-based test software and automation tools to maximize coverage.
• Plan automated test execution strategies for commits, nightly builds, and releases.
• Develop hardware reservation, scheduling, and resource management capabilities.
• Collaborate with software, firmware, FPGA, avionics, electrical, and systems teams to expand coverage.
• Debug complex issues across hardware, firmware, software, networking, and infra.
• Improve reliability, scalability, uptime, and user experience of HITL infrastructure.
• Support board bring-up, lab automation, and prototype testing with new hardware.
• Establish best practices for automated verification and hardware management.

Skills

Python

pytest

Robot Framework

Embedded software workflows

Debug interfaces (serial/JTAG/SWD)

Linux development

Kubernetes / CI/CD

Troubleshooting across domains

Laboratory environment

Test infrastructure architecture

Education

Bachelor's degree in Computer Engineering / Electrical Engineering / Computer Science / Software Engineering or related

Tools

Git

Kubernetes

Job description

Castelion is building fast, scalable HITL infrastructure for embedded software verification on flight-critical hardware. You will architect and own the HITL stack, develop automation tools, and collaborate across hardware, firmware, and software domains to accelerate development velocity and quality.

You will design automated test execution strategies, integrate with Kubernetes/CI/CD, and drive reliability and scalability across engineering teams.