Software Engineer, Cellular

Software at Humane in San Francisco, CA

Who We Are

Humane is a team of proven industry experts who have invented, built, and shipped category-defining hardware and software products to billions of people across the globe. We're known for building the audacious, ambitious, and the impossible, and we're doing it again. Our vision for the next shift between humans and computing requires innovation across multiple emerging technologies in hardware and software, from devices to cloud services.

About The Role

Humane's System Software team is responsible for firmware, operating system software, hardware-accelerated algorithms, connectivity, and core developer frameworks supporting our products. We serve as the glue between our hardware teams and our higher-level software teams, and delight in finding creative solutions to complex, interdisciplinary problems as we bring our product visions to life. As a Cellular Software Engineer on our team, you will design, develop and implement connectivity solutions, with a concentration on cellular, carrier compliance, Android telephony, RF front-end, and modem.


What You Might Do

  • Support carrier requirements and carrier compliance
  • Analyze 3GPP/operator device specifications and correlate them with product features/requirements
  • Implement SW and support the bring up and debug of RF
  • Support RF and wireless systems on low level driver integration, configuration and customization
  • Develop, integrate and customize modem features
  • Improve the power, performance and stability of the modem
  • Debug, triage, and fix modem related issues
  • Support carrier/lab/field testing efforts and any other internal/external RF related testing activities
  • Assist with hardware bring-up, 3rd party driver integration, testing, debugging and device manufacturing


Essential Qualifications

  • 2+ years of experience shipping cellular enabled devices
  • Familiarity with 3GPP/3GPP2 standards
  • Experience in the design, implementation, and bring-up of modem/RF subsystems
  • Familiarity with SoC architecture
  • Strong Software Engineering skills including design, programming (C, C++, or Java) and debugging
  • Awareness of power/performance tradeoffs in SW design
  • Ability to collaborate in a psychologically safe and healthy team environment


Preferred Skills

  • Experience with carrier requirements and carrier compliance
  • Understanding of wireless system verification processes
  • Understanding of mobile operator and industry certifications (such as GCF and PTCRB)
  • Experience working with telecom carriers on cellular certification
  • Experience with carriers’ customization features development
  • Knowledge of 5G NR and/or LTE Data protocols
  • Experience with IMS components (especially VoLTE and VoWiFi)
  • Experience working in a testing lab environment for RF systems
  • Experience with the debug of RF SW and HW failures, identifying root-causes and recommending fixes
  • Solid troubleshooting experience with wireless technologies, specifically 5G NR and/or LTE
  • Experience with RF test equipment
  • Experience with RFFE product specifications
  • Experience developing in Android RIL/Telephony

Why Humane?

  • Develop cutting edge technologies in a creative and innovative environment
  • Imagine new opportunities in areas that matter and will impact the world you live in
  • Be a part of a high performing team of the world’s best innovators and executors
  • Flexible work arrangements to support you in working in the way that you work best
  • Our values: trust truth +joy

Humane currently has a Mandatory Vaccination Policy in place for all individuals who enter any Humane space, subject to the exemptions as required by law. Please do not disclose vaccination status unless requested by our Health & Wellness Coordinator. Thank you. 

At Humane, diversity is important to us.

Humane is an equal opportunity employer and makes employment decisions on the basis of merit and business needs. We do not make hiring or employment decisions on the basis of race, color, religion (including, but not necessarily limited to, religious creed, dress, and grooming practices), citizenship, marital status, age, national origin, place of birth, height, weight, ancestry, mental or physical disability, genetic information, medical condition, U.S. (state and federal) military and veteran status, sexual orientation, gender identity, gender expression, sex, gender, pregnancy (including childbirth or related medical condition), or any other characteristics protected under applicable federal, state, or local laws (“protected characteristics” or “protected categories”). Pursuant to the San Francisco Fair Chance Ordinance and other similar state laws and ordinances, we will consider for employment qualified applicants with arrest and conviction records. At Humane, building a healthy and safe workplace is core to our mission. We prohibit harassment of any kind.

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