RF Test Engineer I

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 an entry-level RF Test Engineer to join our Hardware Test team. This role will support the design, execution, and automation of RF test procedures for products and systems. The engineer will work closely with senior RF engineers, hardware designers, suppliers, and production teams to help ensure products meet performance and compliance specifications.

Key Responsibilities

Set up and execute RF tests, including S-parameters, gain, noise figure, power output, spectral purity, harmonics, and intermodulation, using bench equipment such as vector network analyzers (VNAs), spectrum analyzers, signal generators, and power meters.

Assist with developing and maintaining automated test scripts using Python, LabVIEW, or similar tools for RF characterization and production testing.

Record, analyze, and document test data, and identify and report anomalies or failures.

Support the debugging of RF hardware issues in partnership with design engineers.

Build and maintain test fixtures and laboratory test setups.

Assist with coordination of regulatory and compliance testing, including FCC and CE requirements.

Maintain calibration schedules for RF test equipment.

Prepare clear test reports and procedure documentation.

Collaborate with cross-functional teams, including RF design, firmware, production, and quality.

Qualifications

Education

Bachelor's degree in Electrical Engineering, RF/Microwave Engineering, or a related field, or equivalent practical experience.

Experience

Foundational understanding of RF and microwave theory, including S-parameters, impedance matching, transmission lines, and modulation.

Familiarity with RF test equipment, including VNAs, spectrum analyzers, and signal generators.

Basic scripting or programming ability, with Python preferred for test automation.

Willingness to learn and work in a hands-on laboratory environment.

Ability and willingness to work 100% on-site and relocate to Dallas or Midland, Texas, or Arlington, Virginia, within one month of accepting the position.

Preferred Qualifications

Internship, coursework, or project experience involving RF circuits, antennas, or wireless systems.

Exposure to LabVIEW, MATLAB, or instrument control using SCPI or GPIB.

Familiarity with wireless standards such as Wi-Fi, Bluetooth, cellular, or GPS.

Understanding of electromagnetic compatibility (EMC) and regulatory testing fundamentals.

Soft Skills

Strong analytical and troubleshooting skills.

Clear written and verbal communication skills.

Ability to collaborate effectively across engineering, production, supplier, and quality teams.

Attention to detail when documenting procedures, test configurations, results, and failures.

Technology Stack

RF bench equipment: vector network analyzers, spectrum analyzers, signal generators, and power meters.

Test automation and analysis: Python; LabVIEW and MATLAB preferred.

Instrument control interfaces and protocols: SCPI and GPIB.

Physical Requirements

Ability to work in an on-site engineering laboratory environment and use a computer for extended periods.

Ability to set up and operate RF test equipment, test fixtures, cables, and related bench hardware.

Ability to safely handle laboratory equipment and follow applicable environmental, health, and safety procedures.

Compensation and Career Development

Competitive salary range of $88,000 to $93,000, plus benefits.

Mentorship from senior RF engineers and hands-on training with industry-standard test equipment.

Career growth opportunities within RF and hardware engineering, including worldwide deployment across office and gateway locations on five continents.

Benefits & Perks

At AST, we value our employees and offer a comprehensive benefits package designed to support your health, financial well-being, and work-life balance.

Medical, Dental, and Vision Insurance

401(k) Retirement Plan with Company Match

Company-Paid Short-Term Disability (STD) and Long-Term Disability (LTD) Insurance

Company-Paid Life and Accidental Death & Dismemberment (AD&D) Insurance

Health Savings Account (HSA) and Flexible Spending Account (FSA) Options

Employee Assistance Program (EAP)

Voluntary Supplemental Benefits

Paid Time Off (PTO) and Company Holidays

Career Growth and Development Opportunities

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.