About this role
Amazon Leo is looking for a Wireless Integration and Test Engineer to define and develop the wireless network communication system architecture. The role focuses on integrating and verifying HW/SW subsystems, building custom HW/SW and automation for link bring-up, and improving performance and reliability for LEO connectivity.
Key Responsibilities
- Integrate and verify HW/SW sub-systems for link bring-up
- Verify link budget and RF line-ups in RF and IF configurations
- Develop time synchronized test setups using signal generators and spectrum analyzers
- Architect and document time/frequency/space acquisition and tracking algorithms with Doppler compensation
- Develop customized test plans and bring up procedures using Linux, Python, and bash scripting
Technical Overview
You will work on digital signal processing and wireless communications solutions, including link-layer integration and verification in RF and IF configurations. Responsibilities include RF testing for link budget and timing budgets, building time-synchronized lab setups using signal generators and spectrum analyzers, and implementing/documenting acquisition and tracking algorithms with Doppler compensation (CFO/SFO).
Ideal Candidate
The ideal candidate is an embedded and wireless communications engineer with 3+ years of experience integrating and verifying hardware/software sub-systems for link bring-up in LEO communications. They are strong in RF/IF testing, digital signal processing, and time/frequency acquisition and tracking algorithms, with hands-on lab experience using Linux, Python, and bash scripting.
Must-Have Skills
Master's degree in Electrical Engineering/Communications Engineeringor 3+ years of wireless communications systems and implementation experienceExperience in embedded (as statedtruncated)Verify link budget and RF line-ups in RF and IF configurationsWork with implementation teams to evaluate and simulate expected system level performanceDevelop and document time/frequency/space acquisition and tracking algorithms
Nice-to-Have Skills
Experience with channel emulatorsExperience with software defined radios is highly preferred
Tools & Platforms
LinuxPythonbash scriptingsignal generatorsspectrum analyzersspectrum analyzer (Spec-an)signal generator (sig-gen)oscilloscope (scope)frequency counterattenuatorsRF equipmentIF configurations
Required Skills
wireless network architecturewireless communicationsdigital signal processingsystem integrationverificationlink bring-upRF line-upsRF and IF configurationslink budgettiming budgetstime/frequency/space acquisition algorithmstracking algorithmsDoppler pre compensationDoppler post compensationCFO (Carrier Frequency Offset)SFO (Sample Frequency Offset)channel emulatorssoftware defined radiosembedded programingreal-time waveformsLinuxPythonbash scriptingspectrum analyzerssignal generatorsoscilloscopefrequency counterattenuatorsSpec-ansig-genscope
Hard Skills
wireless network architecture and designsystem integrationverificationlink bring-up and verificationdigital signal processingwireless communicationsproof of concept hardware/software systemsintegration and verification of HW and SW sub-systemscustom HWcustom SWautomation solutionsRF line-ups verificationRF and IF configurationstime synchronized setupssignal generatorsspectrum analyzerstiming budgetstime/frequency/space acquisition algorithmstracking algorithmsDoppler pre compensationDoppler post compensationCFO (Carrier Frequency Offset)SFO (Sample Frequency Offset)LEO communications systemschannel emulatorssoftware defined radiosembedded programinggenerate and capture waveforms in real-timeembedded systems testingdevelopment-test bring up proceduresLinuxPythonbash scriptingprobing RFprobing IFprobing clockchannel quality messagesspec-an (spectrum analyzer)sig-gen (signal generator)scope (oscilloscope)frequency counterattenuatorslaboratory environment testing
Soft Skills
work effectively with implementation teamsarchitect and document algorithmsability to provide quick feedbackcollaboration across PHY and Network teamswillingness to work in a lab environment
Keywords for Your Resume
Wireless Integration and Test EngineerAmazon Leowireless networkwireless communicationsdigital signal processingsystem integrationverificationlink bring-uplink-layerPHYNetwork teamsembedded programingwaveforms in real-timesoftware defined radioschannel emulatorsLinuxPythonbash scriptingRF line-upsRF and IFlink budgettiming budgetstime synchronizedsignal generatorsspectrum analyzersspectrum analyzeroscilloscopefrequency counterDoppler pre compensationDoppler post compensationCFOSFOCarrier Frequency OffsetSample Frequency OffsetDopplerlink bring-up and verification
Deal Breakers
U.S. export control requirement eligibility (U.S. citizen or national, U.S. permanent resident, refugee/asylum as stated), Master's in Electrical Engineering/Communications Engineering or 3+ years wireless communications systems and implementation experience, Experience in embedded (as stated)
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