Senior Wireless Integration and Test Engineer, Amazon Leo

Amazon • Austin, TX

1d

About The Position

Be part of the team defining and developing the overall communication system
architecture and design of Amazon Leo’s wireless network. This is a unique
opportunity to innovate and define ground-breaking wireless technology with few
legacy constraints.

This position will play a critical role in the integration and 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 automation solutions for link bring-up and verification to ensure the system
and link between the Satellite and ground is operating as per the design
requirements. You will also be developing advanced proof of concept HW/SW
systems to improve the performance and reliability of the Amazon Leo network. In
particular this role will be responsible for using concepts from digital signal
processing and wireless communications to develop novel solutions for achieving
an ultra-high performance LEO network.

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.

About the team
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.

Requirements

• Master's degree in Electrical Engineering/Communications Engineering, or 8+ years of wireless communications systems and implementation experience
• Experience in embedded wireless systems, or experience in embedded development in C/C++
• Knowledge of network and web related protocols such as TCP/IP, UDP, IPSEC, HTTP or equivalent
• Experience in software development, or experience in agile/scrum or related collaborative workflow
• Experience with RF lab equipment including VNA, power meters, spectrum analyzers, vector signal generators
• Experience in test setup automation using MATLAB, Python, or Pearl
• Experience with current and upcoming RF standards in cellular (4G/5G NR), WiMAX, 802.11ad, microwave backhaul, or related broadband wireless standard
• Knowledge of multiple access systems including OFDMA, TDMA, and CDMA

Nice To Haves

• Experience designing or architecting (design patterns, reliability and scaling) of new and existing systems, or experience in embedded wireless systems
• Experience leading technical initiatives and key deliverables
• Ideal candidate has a wireless communication systems or digital signal processing background, a passion for building real-world carrier-grade communication systems, and industry experience developing PHY/MAC layer software targeting embedded multicore processors in C/C++

Responsibilities

• Work closely with implementation teams to evaluate and simulate expected system level performance and provide quick feedback on potential improvements
• Work with the PHY and Network teams to seamlessly integrate the link-layer within the stack.
• Integrate the various link-layers working closely with implementation teams.
• Verify link budget and RF line-ups in RF and IF configurations.
• Create time synchronized setups with signal generators / spectrum analyzers and use these to verify timing budgets.
• Architect and document time/frequency/space acquisition and tracking algorithms. Understand Doppler pre and post compensation techniques with CFO/SFO in LEO comms systems. Experience with channel emulators is a plus.
• Work with a team to develop novel customized test plans using embedded programing to generate and capture waveforms in real-time. Experience with software defined radios is highly preferred.
• Contribute development-test bring up procedures with Linux, Python, bash scripting etc.
• Willing to work in a lab environment and on scripting to change a SW/HW pieces incrementally and understand its effect on payload (via probing RF, IF, clock, channel quality messages) with help of Spec-an, sig-gen, scope, frequency counter, attenuators and other related equipment.

Benefits

• 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
• parental leave

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level