Senior Test Automation Engineer - Hardware & Software Infra

CesiumAstro; Westminster (MD); On-site; USD 133,000 - 160,000; Full time

Benefits offered by this job

Stock options

Health insurance

Dental insurance

Vision insurance

HSA

FSA

Life insurance

Disability insurance

Retirement plans

Job summary

CesiumAstro is seeking a Senior Software Engineer – Test Automation & Infrastructure to develop and scale automated test systems supporting RF and satellite payload validation. This role sits at the intersection of software development and hardware test engineering, building robust automation frameworks and infrastructure that ensure reliable, repeatable system validation.

You will play a key role in improving product quality, accelerating development cycles, and enabling seamless integration

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent experience).
• 5–8 years of experience in software engineering, test automation, or related roles.
• Experience developing software that interfaces with hardware systems or laboratory instrumentation.
• Strong experience in test automation framework and infrastructure development.

Responsibilities

• Develop automated test software to control laboratory instrumentation.
• Implement and maintain test sequences for system- and component-level validation.
• Support integration and execution of tests across hardware and software environments.
• Debug and troubleshoot test failures across software, hardware, and interface layers.
• Ensure test systems produce accurate, repeatable, and reliable results.
• Design and implement software for device under test (DUT) control, including command handling, telemetry ingestion, and state management.
• Build reusable automation frameworks and scripts to streamline test development.
• Apply best practices in software engineering, including modular design, version control, and code reviews.
• Reduce manual intervention through scalable automation solutions.
• Develop tools and utilities to enhance test productivity.

Skills

Python

C/C++

Test automation

System architecture

Debugging

Communication

Education

Bachelor’s degree in Computer Science or Software Engineering

Tools

Git

CI/CD tools

Automation frameworks

Instrumentation control

DUT control

Job description

CesiumAstro is seeking a Senior Software Engineer – Test Automation & Infrastructure to develop and scale automated test systems supporting RF and satellite payload validation. This role sits at the intersection of software development and hardware test engineering, building robust automation frameworks and infrastructure that ensure reliable, repeatable system validation.

You will play a key role in improving product quality, accelerating development cycles, and enabling seamless integration