AST SpaceMobile is building the first and only integral 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 Electronic Hardware Engineer to design, develop, validate and document onboard electronic systems for satellites, ensuring their reliability, performance and compliance with aerospace industry standards.

Key Responsibilities

Design schematics and PCBs for satellite electronic systems (power subsystems, communications, control, etc.)

Perform simulations, signal analysis, electrical and thermal integrity

Participate in component selection in accordance with space standards (ECSS, MIL-STD, etc.)

Collaborate in HW-SW system integration with other departments (software, systems, integration and testing)

Prepare technical documentation in compliance with aerospace standards

Support environmental test campaigns (EMC, vibration, thermal-vacuum, etc.)

Collaborate with suppliers for the manufacturing and assembly of electronic boards

Participate in design reviews (PDR, CDR) with clients or agencies (ESA, NASA, etc.)

Qualifications Education

University degree in Electronic Engineering,



Telecommunications Engineering, Aerospace Engineering or similar

Experience

A minimum of 8 years in electronic hardware design, preferably in high-reliability environments (aerospace, defense, automotive). Experience in multilayer PCB design, high-speed design, and environments with thermal or electromagnetic constraints.

Preferred Qualifications

Knowledge of ECSS, DO-254, IPC

Soft Skills

Analytical and complex problem-solving skills

Teamwork in multidisciplinary environments

Proactivity, autonomy and results orientation

Communication and technical writing skills

Technology Stack

Electronic design tools (Altium Designer, Cadence, Mentor, etc.)

Communication protocols (CAN, RS485, SPI, I2C, SpaceWire, etc.)

Physical Requirements

Ability to work in a standard office environment and use a computer for extended periods

This 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.

📌 HW Electronic Engineer (Madrid)
🏢 AST SpaceMobile
📍 Madrid