Job description

As a Senior Systems Software Engineer, Cellular Validation, you will be responsible for the design, development and implementation of connectivity test solutions, with a concentration on cellular, carrier compliance, certification, telephony and HW/SW RF performance. You will also have the opportunity to develop leadership skills as you coordinate development and test efforts with vendors, consultants, and manufacturing partners.

What You Might Do

• Support network testing, lab/field testing and any other internal/external RF related testing activities
• Work closely with our internal RF/Antenna teams and chipset vendors to perform defect analysis and quality fixes
• Debug, triage and support connectivity, modem, and telephony issues from factory/certification (GCF, PTCRB, IOT, FIT), working closely with vendors
• Assist with system bring-up, testing, debugging and device manufacturing, including telephony/IMS
• Support the power, performance and stability of connectivity subsystems and features
• Review carrier requirements, identify gaps between carrier requirements/chipset capabilities, and develop/execute test plans for features, end user scenarios and 3GPP use cases
• Develop connectivity related automated testing

Essential Qualifications

• 2+ years of experience shipping cellular enabled devices
• Familiarity with cellular technologies (LTE or 5G), and 3GPP/3GPP2 Standards
• Experience with carrier requirements and carrier compliance
• Familiarity with SoC architecture
• Ability to collaborate in a psychologically safe and healthy team environment
• Scripting skills in any of the following : Perl, Python, Shell, JavaScript, Ruby
• Exposure to commercial test simulators such as : Anritu, RS, keysight call boxes for lab validation

Preferred Skills

• Understanding of wireless system verification processes
• Experience in the design, implementation, and/or bring-up of modem/RF subsystems
• Experience working with telecom carriers on cellular certification and/or with carrier specific customizations
• Experience working in a testing lab environment for RF systems and with RF test equipment
• Experience with the debug and troubleshooting of RF SW and HW failures, identifying root-causes and recommending fixes
• Experience with RIL, telephony, and IMS components
• Experience with Modem/RF systems testing, GCF/PTCRB certification, and OTA testing
• Experience in Android connection manager, collecting diagnostics reports, etc.
• Expertise in Regulatory Compliance in areas of EMC (Electromagnetic Compatibility), RF (Radio Frequency) and Safety, to obtain certifications
• Knowledge of 3GPP/3GPP2 air interface and data protocols such as 5G-NR, LTE-A, HSPA, WCDMA, GSM, EV-DO, and 1xRTT
• Experienced with log analysis and know how to operate test box and conducting testing

Job Type: Contract

Pay: $30.29 - $68.83 per hour

Benefits:

• 401(k)
• Dental insurance
• Health insurance
• Health savings account
• Vision insurance

Experience level:

• 2 years

Schedule:

• Monday to Friday

Ability to commute/relocate:

• San Francisco, CA 94105: Reliably commute or planning to relocate before starting work (Required)

Experience:

• 5G: 2 years (Required)
• LTE: 2 years (Required)
• 3gpp: 1 year (Required)

Work Location: In person

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