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# System Integration and Test Engineer

- **Company:** AST SpaceMobile
- **Location:** Washington, DC, United States
- **Experience:** Starter
- **Contract:** Permanent contract
- **Skills:** 4G (Telecommunication), LTE (Telecommunication), Automation of Tests, Network Analysis, Computer Programming, Computer Engineering, Hardware Design, Python (Programming Language), MATLAB, Network Planning and Design, Radio-Frequency Identification, Signal Processing, Software Systems, Verification and Validation (Software), System Testing, Systems Integration, Test Execution Engine, System-level Testing, Integration Tests, Service Stack
- **Published:** November 3, 2026
- **Apply:** https://www.careerbuilder.com/job-details/system-integration-and-test-engineer-washington-dc--3867e203-04b7-4f66-a056-9edfe57eaf13

## About the Role

System Integration (SI), Integration Testing, Broadband, Smartphones, 4G (4th Generation) Wireless, Network Design, System Test, Integration Testing, Aerospace and Defense, Cross-Functional, * 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, * 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

## Description

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., * 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