---
title: 'High Speed Systems Engineer at AST SpaceMobile'
canonical: 'https://feeny.ai/job/high-speed-systems-engineer-ast-spacemobile-barcelona-k39msmf5npq2'
type: 'job'
last_seen: '2026-09-12'
---

# High Speed Systems Engineer at AST SpaceMobile

- **Company:** AST SpaceMobile
- **Location:** Barcelona, Spain
- **Posted:** 2026-07-03
- **Last confirmed live:** 2026-09-12
- **Apply:** https://ast-science.com/company/careers/?gh_jid=4711991005

## Job description

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 a highly skilled High-Speed Hardware Engineer (RF & Digital Systems) to design and develop advanced electronic systems for next-generation satellite and telecommunications platforms. The role focuses on high-frequency and high-data-rate hardware development across the full product lifecycle, ensuring robust performance, reliability, and compliance with industry standards.

## Key Responsibilities

- Design high-speed multilayer PCBs with controlled impedance.
- Develop high-speed digital interfaces such as DDR, PCIe, Ethernet, and SerDes.
- Ensure signal integrity and power integrity across complex electronic systems.
- Design and integrate RF and mixed-signal circuits.
- Perform schematic design, layout supervision, and PCB stack-up definition.
- Conduct signal integrity and RF simulations to validate designs.
- Support hardware validation, testing, debugging, and troubleshooting activities.
- Collaborate with FPGA, RF, and system engineering teams to ensure successful product integration.
- Prepare technical documentation and support manufacturing and production processes.

## Qualifications

Education:

- Bachelor’s degree in Electrical Engineering, Telecommunications Engineering, or a related field.

Experience:

- A minimum of 5 years of experience in high-speed hardware design.
- Strong experience using PCB design tools such as Altium Designer or Cadence.
- Solid knowledge of signal integrity principles and transmission line theory.
- Experience with high-speed communication protocols including PCIe, Ethernet, DDR, and SerDes.
- Hands-on laboratory experience using oscilloscopes, spectrum analyzers, and related test equipment.

Preferred Qualifications:

- RF design experience in the GHz frequency range.
- Experience within satellite, aerospace, or telecommunications industries.
- Familiarity with FPGA-based systems.
- Experience with simulation tools such as HyperLynx, ADS, and HFSS.
- Knowledge of EMC/EMI standards and compliance requirements.

Soft Skills:

- Strong analytical and problem-solving skills.
- Excellent attention to detail.
- Strong written and verbal communication skills.
- Proven ability to collaborate effectively within cross-functional teams.
- Strong organizational and project management skills.
- Ability to work independently and manage multiple priorities.
- Results-oriented mindset with a commitment to quality and continuous improvement.

Technology Stack:

- Altium Designer.
- Cadence Design Systems.
- HyperLynx.
- ADS (Advanced Design System).
- HFSS.
- Oscilloscopes.
- Spectrum analyzers and electronic test equipment.
- PCB design and simulation tools.
- Microsoft Office Suite.

Physical Requirements

- Ability to work in a standard office environment and use a computer for extended periods.
- Ability to work in laboratory environments and interact safely with electronic test equipment.
- Ability to perform hardware testing, validation, and debugging activities.
- May require occasional travel to support testing, integration, manufacturing, or customer activities.
- Ability to handle electronic hardware and laboratory equipment as 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.

## About AST SpaceMobile

## Company Overview
- **One-liner**: AST SpaceMobile is building the first and only space-based cellular broadband network accessible directly by standard, unmodified smartphones.
- **Entity Type**: Public (Nasdaq: ASTS)
- **Headquarters**: Midland, Texas, USA
- **Founded**: 2017
- **Founders**: Abel Avellan

## Core Business
- **Primary industry**: Space-based telecommunications / Satellite broadband
- **Target customers**: B2B (mobile network operators), B2C (indirectly through MNOs), and government/defense agencies
- **Mission**: To eliminate connectivity gaps faced by today’s nearly six billion mobile subscribers and bring broadband to the billions who remain unconnected using a space-based cellular network.

## Products & Services
- **[SpaceMobile Network]**: A space-based cellular broadband network that delivers 4G/5G connectivity directly to standard smartphones without any hardware modifications, apps, or software updates.
- **[BlueBird Satellites]**: The company’s commercial satellite constellation, designed to provide full broadband coverage globally. BlueBird satellites are among the largest commercial communications arrays in low Earth orbit.
- **[BlueWalker 3]**: The prototype satellite used to demonstrate world-first voice, 5G, and video calls from space to ordinary phones.
- **[Government & Defense Solutions]**: Tailored connectivity for tactical and public safety applications (e.g., FirstNet tests, government contracts).

## Market Standing
- **Valuation/Market Cap**: Market capitalization exceeded $8 billion as of August 2024 (stock price ~$38.60). More recent figures are not publicly available but the company has raised over $2 billion as of Q2 2025.
- **Key Metric (Total Funding)**: Over $2 billion raised (debt and equity) as of Q2 2025.
- **Notable Investors/Partners**: Vodafone, Rakuten, American Tower, Samsung Next, Cisneros, Google (product partnership), AT&T, Verizon, FirstNet Authority.
- **Growth Signals**:
  - Partnerships with nearly 60 mobile network operators covering ~3 billion combined subscribers.
  - Successfully completed first VoLTE voice calls, video calls, and 5G data connections using standard smartphones via satellite.
  - First public safety tests on FirstNet (Jan 2024) and first activation for government defense use cases (June 2025).
  - Commercial contract with Vodafone through 2034 for Europe and Africa.
  - 578 employees as of 2024; expanding manufacturing and office footprint globally.

## Competitive Advantages
- **First-mover**: Only company offering direct-to-smartphone satellite broadband with no specialized hardware or software required.
- **Patent Moat**: Over 3,800 patents and pending claims protecting proprietary technology.
- **MNO Integration**: Deep partnerships with major global operators enable seamless integration with existing terrestrial networks.
- **Satellite Scale**: BlueBird satellites feature large phased-array antennas (BlueWalker 3 array is 693 sq ft), providing a field of view over 300,000 sq miles.

## Strategic Focus
- **Constellation Deployment**: Rapidly launching and operationalizing the BlueBird satellite fleet to start generating significant commercial revenue.
- **Global Coverage Expansion**: Targeting full service across multiple continents, with a focus on remote and underserved regions.
- **Government & Defense**: Broadening contracts for secure, tactical connectivity.
- **Technology Advancement**: Continued R&D on next-generation satellite capabilities and network optimization.

## Why Work Here
- **Culture**: Fast-growing company with a startup mindset; employees are encouraged to wear many hats and tackle meaningful challenges.
- **Global Presence**: Offices in Midland (TX), Homestead (FL), Miami (FL), Lanham (MD), Tel Aviv, Barcelona, Edinburgh, Hyderabad, and other locations.
- **Impact**: Opportunity to work on a historic transformation in global connectivity, directly connecting billions of people.
- **Perks & Environment**: Nearly 500,000 sq ft of manufacturing and office facilities; emphasis on innovation, autonomy, and cross-disciplinary collaboration.
- **Career Growth**: Open positions listed on Greenhouse; values proactive, passionate innovators.

## Sources
1. [AST SpaceMobile Official Website](https://ast-science.com)
2. [AST SpaceMobile Company Page](https://ast-science.com/company/)
3. [AST SpaceMobile Careers Page](https://ast-science.com/company/careers/)
4. [AST SpaceMobile Investor Relations](https://investors.ast-science.com/)
5. [Wikipedia – AST SpaceMobile](https://en.wikipedia.org/wiki/AST_SpaceMobile)

## Other roles at AST SpaceMobile

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