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AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today’s five billion mobile subscribers and finally bring broadband to the billions who remain unconnected.
Position Overview
We are seeking an Integration Engineer with strong expertise in Radio Access Network (RAN) and RF systems, paired with hands-on experience debugging RF setup issues. This role is responsible for validating and troubleshooting communication systems within a satellite end-to-end environment, ensuring network performance, reliability, and compliance with design expectations. The ideal candidate brings a balanced skill set across RAN technologies and RF fundamentals, along with practical experience using advanced RF and communication test equipment.
Key Responsibilities:
- Perform hands-on testing and validation of communication systems and RAN components in both lab and field environments
- Debug and resolve RF setup issues, including antenna configurations, signal integrity, and end-to-end RF chain problems
- Analyze and interpret lab and field test data to identify defects, root causes, and performance improvement opportunities
- Collaborate closely with system engineers and software developers to validate new software releases and features
- Support test planning, execution, documentation, and reporting for communication system and RAN validation activities
Qualifications
Education:
- Bachelor’s degree in electrical engineering, communications engineering, or a related technical discipline
Experience:
- A minimum of 5+ years of experience in communication systems testing, RAN validation, and RF troubleshooting
Preferred Qualifications:
- Strong RF fundamentals with demonstrated hands-on debugging capability
- Working knowledge of 3GPP protocols and procedures, including RRC, RLC, MAC, and PHY layers
- Experience using Python and MATLAB for test automation and data analysis
- Familiarity with industry-standard tools such as XCAL, UE Simulators, Viavi, and QXDM
- Hands-on experience with RF test equipment, including spectrum analyzers, signal generators, oscilloscopes, and network analyzers
Soft Skills:
- Strong analytical and problem-solving skills for complex RF and communication system challenges
- Proven ability to collaborate effectively within cross-functional engineering teams
- Excellent written and verbal communication skills
- Meticulous attention to detail to ensure accurate testing, validation, and documentation
Technology Stack:
- RF Test & Debug Equipment: Spectrum analyzers, signal generators, oscilloscopes, network analyzers
- Log Analysis & Diagnostics: QXDM
- Automation & Data Analysis: Python, MATLAB
- Industry Tools: XCAL, UE Simulators, Viavi
Physical Requirements:
- Ability to work in laboratory environments and perform hands-on RF testing for extended periods
- Ability to use a computer and test equipment for extended durations
- Occasional travel required for field testing and validation activities
- Requires relocation to Midland, TX
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.
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