System Integration and Test Engineer

AST SpaceMobile and our global partners are building the first and only space-based cellular broadband network to be accessible by standard smartphones. Called SpaceMobile, this ultra-powerful network is being designed to provide connectivity at 4G/5G speeds everywhere on the planet – on land, at sea and in flight.

Position Overview

We are seeking a System Integration and Test Engineer to support advanced communications and aerospace-related programs. This role is responsible for integrating complex hardware and software systems and executing comprehensive system-level testing to ensure performance, reliability, and compliance with technical requirements. The ideal candidate is hands-on, detail-oriented, and thrives in highly technical, cross-functional environments.

Key Responsibilities:

Plan and execute system integration and testing activities for advanced communications platforms

Perform hands-on integration of hardware and software subsystems, identifying and resolving interface and performance issues

Collaborate with cross-functional engineering teams to define integration requirements and address technical challenges

Conduct system-level testing in controlled lab environments as well as field or over-the-air testing scenarios

Analyze test results and provide clear documentation, reports, and actionable recommendations

Track and communicate integration progress and status updates to stakeholders

Develop and maintain automated test scripts and procedures to improve testing efficiency and coverage

Support system verification, validation, and acceptance testing efforts

Qualifications

Education:

Bachelor’s in electrical or computer engineering with an emphasis in RF/microwave, communications systems, or telecommunications (M.S. a plus, not required)

Coursework in RF/microwave circuit design, antenna theory, digital/analog communications, signal processing (DSP), and electromagnetics

Experience:

A minimum of 0–3 years of experience in communications or RF systems

Preferred Qualifications:

RF/Communications or Telecommunications experience

Hands-on experience with spectrum analyzers, signal generators, network analyzers, power meters

Experience with arbitrary waveform generators and signal injection techniques

Familiarity with modulation/demodulation schemes (QPSK, etc) and link budget analysis

Working knowledge of 4G LTE and 5G architectures including Core and RAN functions

Exposure to telecom test equipment (Keysight, Anritsu, etc)

Understanding of over-the-air (OTA) test methodologies and RF link characterization

Lab based hardware integration (bench assembly, cabling, harnessing)

Test procedure development, execution, and reporting

Root cause analysis and anomaly resolution/troubleshooting

Eligibility to obtain or maintain a security clearance (if required)

Soft Skills:

Strong interpersonal skills with the ability to collaborate across diverse engineering teams

Proven ability to troubleshoot complex problems and think critically under pressure

Excellent written and verbal communication skills for technical documentation and reporting

Meticulous attention to detail to ensure accuracy in testing and reporting deliverables

Strong organizational and time management skills in fast-paced environments

Technology Stack:

Programming and analysis tools such as Python, MATLAB, or similar

Test and measurement equipment for system validation

Automation tools or scripting frameworks for test execution

Data analysis and reporting tools

General engineering design and collaboration platforms

Physical Requirements

Ability to work in a standard office, lab, or testing environment

Ability to operate a computer and technical equipment for extended periods

May require occasional lifting of light equipment or working in specialized test environments

Additional Requirements

Due to the nature of this role and applicable federal regulations, U.S. citizenship is required.

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands .

AST SpaceMobile is an Equal Opportunity, at will Employer; employment is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.