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Added 22 hours ago
Wireless Infrastructure Engineer Specialist
Booz Allen Hamilton_United States
McLean, VA
As an IT infrastructure engineer on our team, you’ll help develop IT systems prototypes and experiment with emerging IT and 5G wireless technology to support critical mission use cases.…
Added 23 hours ago
Associate Electrical Software Test Engineer
AST SpaceMobile
Lanham, MD
We are seeking an Associate Electrical Software Engineer to join the Software Validation and Testing team. This role will support the execution, validation, and verification of software and…
Added 1 day ago
AS
Assoc Electrical Software Test Engr Part Time
AST SpaceMobile
Lanham, MD
- Part-time
We are seeking an Associate Electrical Software Engineer to join the Software Validation and Testing team. This role will support the execution, validation, and verification of software and…
Added 1 day ago
RAN Deployment Engineer
AST SpaceMobile
Lanham, MD
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…
Added 1 day ago
RAN Deployment Engineer
AST SpaceMobile
Lanham, MD
Capture telemetry, logs, system metrics, and performance data for analysis and troubleshooting purposes
Added 2 days ago
RF Test Engineer
AST SpaceMobile
Midland, TX
We are seeking an experienced and driven RF Test Engineer to support the development, deployment, validation, and optimization of advanced RF automated test systems for next-generation…
Added 2 days ago
Principal Engineer, Stack
Parallel Wireless
Remote, United States
Collaborate with engineering teams across multiple sites to integrate, validate, and improve stack functionality and system performance.
Added 2 days ago
Principal RF Engineer
AST SpaceMobile
Dallas, TX
We are seeking a Principal RF Engineer to support the design, analysis, and optimization of advanced satellite-based communications systems. This role is responsible for developing RF…
Added 2 days ago
Principal Gateway Engineer
AST SpaceMobile
Dallas, TX
We're looking for a Principal Gateway Engineer to help design, deploy, optimize, and troubleshoot packet core gateway infrastructure that carries subscriber data traffic across mobile…
Added 3 days ago
Mechanisms Engineer
AST SpaceMobile
Lanham, MD
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…
Added 9 days ago
Sr. Wireless Integration and Test Engineer, Amazon Leo
Amazon Kuiper Manufacturing Enterprises LLC
Austin, TX · Redmond, WA
…verification of various HW and SW sub-systems as a part of system integration and link bring-up and verification. As a part of this effort you will develop custom HW, custom SW and…
Added 10 days ago
Sr. Modem Systems Engineer, Amazon Leo
Amazon
San Diego, CA
…minimal legacy constraints. The team focuses on physical layer system design, including waveform optimization, modulation and coding strategies, MIMO, synchronization, channel estimation,…
Added 10 days ago
Sr. Core Integration Engineer (Starlink Mobile)
SpaceX
Redmond, WA
…role in integrating, testing and evaluating the functional performance, reliability and robustness of a complex satellite communication network. You will integrate the communication system…
Added 11 days ago
Senior Engineer, Embedded Software
Clarios
Milwaukee, WI
Analyze system performance, memory utilization, timing, power consumption, and communication reliability.
Added 11 days ago
6G Cellular Modem Systems Engineer
Apple
San Diego, CA · Sunnyvale, CA
We're looking for a Cellular Modem Systems Engineer to join our cellular systems engineering team as we define and build the next generation of cellular technology. This is a rare…
Added 11 days ago
Electrical Engineer
AST SpaceMobile
Lanham, MD
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…
Added 11 days ago
RF Design Engineer
FUTURE TECHNOLOGIES VENTURE LLC
Suwanee, GA
…documentation processes. Responsible for Macro & Inbuilding 5G/4G system design and planning. Perform Carrier-specific, Neutral Host, and Private cellular network designs using DAS,…
Added 13 days ago
Sr. Infotainment Component Engineer - Compute and Connectivity
Ford Motor Company
Long Beach, CA
As a Sr Infotainment Component Engineer, you will be the Directly Responsible Individual (DRI) for Ford’s High-Performance Computing Cluster (HPCC) and Telematics Control Unit (TCU) across…
Added 13 days ago
ASIC Design Engineer, Cloud-Scale Machine Learning Acceleration team - Annapurna Labs
Amazon
Cupertino, CA
Custom SoCs (System on Chip) live at the heart of AWS Machine Learning servers. As a member of the Cloud-Scale Machine Learning Acceleration team you’ll be responsible for the design and…
Added 13 days ago
Cellular / RF Engineer (TS)
Koniag Government Services
Washington, DC
We are seeking an experienced Cellular / RF Engineer to support enterprise‑level wireless connectivity initiatives, with a focus on cellular (4G/5G) and other RF technologies. The ideal…
Added 13 days ago
Hardware Engineer - ML Acceleration, Annapurna Labs
Amazon
Austin, TX
We are seeking a Hardware Design Engineer with role in the definition, design and validation of AWS next generation ML Chips, Cards and server integration. As a senior member of our…
Added 13 days ago
Package Layout Design Engineer , Annapurna Labs - AI Silicon Packaging
Amazon
Austin, TX
We are seeking a Package Layout Design Engineer to join our hardware team and contribute to the physical design of advanced IC packages for next-generation machine learning and data center…
Added 13 days ago
ASIC Design Engineer, Cloud-Scale Machine Learning Acceleration team - Annapurna Labs
Amazon
Austin, TX
Custom SoCs (System on Chip) live at the heart of AWS Machine Learning servers. As a member of the Cloud-Scale Machine Learning Acceleration team you’ll be responsible for the design and…
Added 13 days ago
Sr. PD Methodology Engineer, Annapurna Labs - Cloud Scale Machine Learning
Amazon
Austin, TX
Custom SoCs (System on Chip) live at the heart of Amazon Machine Learning servers. As a member of the Cloud-Scale Machine Learning Acceleration team you’ll be responsible for the design and…
Added 13 days ago
MLA IP Design Verification Engineer, Annapurna Labs
Amazon
Austin, TX
Experience identifying bugs in architecture, algorithms, functionality, and performance with strong overall debugging skills

Amazon

Sr. Modem Systems Engineer, Amazon Leo

San Diego, CA, United States

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Job details

Experience: 7+ years of experience in wireless systems design and / or RF design implementation
Posting language: English
Posted: May 7, 2026

Original job description

Description

Amazon Leo is an initiative to launch a constellation of Low Earth Orbit satellites that will provide low-latency, high-speed broadband connectivity to unserved and underserved communities around the world.

Come work at Amazon!

Key job responsibilities

The Role:

Be part of the team defining the system level architecture of Leo’s broadband wireless system from customer end points to terrestrial gateways via Low Earth Orbit satellites.

This is a unique opportunity to help define a next-generation wireless PHY solution with minimal legacy constraints. The team focuses on physical layer system design, including waveform optimization, modulation and coding strategies, MIMO, synchronization, channel estimation, equalization, and link adaptation under realistic channel conditions. Responsibilities also include PHY performance modeling and simulation, link budget analysis, spectral efficiency optimization, interference mitigation, and development of top-level wireless system architecture aligned with hardware and real-time implementation constraints.

In this role you will:

Develop and improve physical layer modem algorithms for wireless communication systems
Work on system architecture, signal processing, and performance optimization for components such as modulation/demodulation, channel coding, channel estimation, equalization, MIMO, and synchronization
Support pre-silicon verification and post-silicon validation/debugging
Collaborate with RF, ASIC, DV, and SW teams to enable efficient hardware and real-time implementation

Export Control Requirement:

Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.

Basic Qualifications

Bachelor's degree in electrical engineering or equivalent
7+ years of experience in wireless systems design and / or RF design implementation
Experience in wireless system design and architecture, system integration, RF system analysis
Experience with current and upcoming RF standards in cellular (4G/5G), WiMAX, 802.11ad, microwave backhaul, DVB-S2 / DVB-C, OR similar broadband wireless standards

Preferred Qualifications

Master’s / PhD degree in Electrical Engineering or Communications Systems
Good analytical, problem solving and communication skills
Experience with development of a new wireless communications system
Experience with technical-focused regulatory filings and spectrum coordination
Experience with communication theory, OFDM, MIMO, Digital/Wireless Communication Systems and RF engineering

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company’s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits .

USA, CA, San Diego - 185,200.00 - 250,000.00 USD annually

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