High Speed Systems Engineer
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 3 October 2026.
About the role
AST SpaceMobile's standard text
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. High-speed HBM engineering
- 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). HBM
- 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.
AST SpaceMobile's standard text
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.
What this role asks for
Particular to this role
Altium · FPGA · PCB Design
Rare in AST SpaceMobile's other 176 open postings.
70% of this description is written for the role. The rest is AST SpaceMobile's standard text, folded away below.
Read against AST SpaceMobile's other open postings on this site.
The team: Electrical Engineering HIRES STEADILY
This role is one of 14 open in Electrical Engineering. 2 were posted in the last 30 days and the oldest in February: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
PCB Design (6 of 14), Test Automation (4 of 14), Altium (3 of 14), Python (3 of 14), AutoCAD (2 of 14), CATIA (2 of 14), Embedded Systems (2 of 14)
OTHER ROLES ON THIS TEAM
- Power System Engineer posted Sep 28
- Associate RF System Integration Engineer posted Sep 25
- Associate Electrical Engineer posted Sep 16
- Associate Test Engineer (Electrical) posted Sep 16
- Associate Electrical Engineer posted Sep 15
- HW Testing Engineer posted Sep 10
- Production Applications Engineer (TULIP) posted Sep 10
- High Speed Systems Engineer Lead posted Jul 3
- Radiation Engineer posted Jul 3
- HW Electronic Engineer posted May 19
- Battery Production & Test Supervisor posted Apr 20
- Product Manager – Spacecraft Systems (LEO Satellites) posted Apr 14
- RF System Integration Engineer posted Feb 27
From the team and dates on AST SpaceMobile's own job board.
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