OverviewAmazon 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.Responsibilities
As a technical contributor, be at the forefront of bring-up, integration, and debugging of advanced PHY/MAC and beamforming radio systems for state-of-the-art satellite communication system.Architect, document, and execute 3GPP based testing for satellite to ground networks. Work with vendors to define equipment requirements to achieve 3GPP conformance testing. Adapt test plans daily based on capabilities of HW/SW delivered by the dev teams.Collaborate across disciplines—including PHY algorithms, RF design, digital beamforming and antenna, MAC, and firmware teams—to ensure seamless integration and best-in-class wireless performance.Understand Doppler pre- and post-compensation techniques with CFO/SFO in LEO comms systems and test them in the laboratory environment for 3GPP. Knowledge of channel emulators is a plus.Trade link budget and verify RF line-up for payloads in RF and IF configurations.Characterize performance, analyze data, root-cause system-level issues, and ensure high product quality.Work with a team and take responsibility for power, clock, RF, air, and network debugging in lab.Contribute development-test bring-up procedures with Linux, Python, bash scripting, etc.Experience with wireless synchronization and signal generators / spectrum analyzers to verify that time/frequency requirements are being met.Experience, knowledge, and skills on wireless system design, integration, bring-up and debug of wireless PHY and RF systems on SoC platforms.Strong understanding of OFDM and MIMO-based wireless systems across both baseband and RF domains, with a solid foundation in related communication theory and signal processing.Work in lab environment and stay in front of the setups for debugging with reference equipment.Work on scripting to change a SW/HW piece incrementally and understand its effect on payload (via probing RF, IF, clock, channel quality messages) with help of Specan, SigGen, scope, frequency counter, attenuators, etc.Work cross-functionally with RF, ASIC, SW, Comsys, Testbed teams and vendors to move forward in testing and integration.
Export Control RequirementDue 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.QualificationsBasic Qualifications
Bachelor's degree in Electrical Engineering or a related field, or equivalent experience in electrical engineering.5+ years of professional experience in L1/L2 or beamforming.Experience with RF lab equipment, bring-up, test and integration activities.
Preferred Qualifications
Masters/PhD with emphasis in wireless communication systems.Proficiency with modeling in MATLAB and/or C/C++ and experience in test automation setup and scripting languages such as Python/Perl/Matlab.Broad spectrum of knowledge to understand end-to-end network system architecture from wireless RF and physical layer all the way up to application end-point.3GPP NTN and ORAN knowledge to address conformance testing.Experience with leading technical initiatives and key deliverables.Ability to work in a small team and drive beyond expectations to deliver results.Background in wireless LTE, 5G/6G, RLC, PDCP, RRC and RAN protocols.Knowledge of IP, UDP, TCP, protocols and analysis tools such as Wireshark.Experience with current software development processes and tools including Agile, TDD, BDD, CI, Git.Implementation experience with wireless synchronization and parameter sensing techniques such as ranging/positioning based on signaling and low-power design expertise.Proven passion for building, integrating and testing real-world carrier-grade communication systems.Extensive experience with lab test equipment such as channel emulator, spectrum analyzers, and signal/network traffic generators.
BenefitsThe base salary range for this position is: United States – CA, San Diego: $129,****** – $174,****** USD annually; TX, Austin: $129,****** – $174,****** USD annually; WA, Redmond: $129,****** – $174,****** USD annually. The package includes sign-on payments and restricted stock units (RSUs). Final compensation is determined based on experience, qualifications, and location.Amazon offers comprehensive benefits, including health insurance (medical, dental, vision, prescription), basic life & AD&D; insurance, supplemental life plans, employee assistance program, mental health support, medical advice line, flexible spending accounts, adoption and surrogacy reimbursement, 401(k) matching, paid time off, and parental leave. Learn more about our benefits at Opportunity Employer StatementAmazon is an equal-opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.#J-*****-Ljbffr