Experienced 5G/4G Physical Layer Firmware Verification and Integration Engineer

Experienced 5G/4G Physical Layer Firmware Verification and Integration Engineer


Munich, Germany

By collaborating with other product development groups across Apple, you’ll push the industry boundaries of what wireless systems can do and improve the product experience for our customers across the world! As a 5G/4G Physical Layer Firmware Verification and Integration Engineer, you will be at the center of the embedded 5G/4G/multimode cellular physical layer firmware effort within a silicon design group responsible for crafting and productizing powerful cellular SoCs.

This position requires someone comfortable with all aspects of embedded firmware verification and integration, who thrives in a wide-ranging multi-functional organization, is not afraid to debate ideas openly, and is flexible enough to shift on constantly evolving requirements.

Key Qualifications

  • Minimum Bachelor's degree in Computer Science and minimum 5 years of relevant work experience
  • In-depth understanding of 5G and 4G 3GPP physical layer and protocol stack procedures and configurations
  • Experience with firmware test plan and feature release planning for the 4G/5G functional and performance scenarios
  • A strong understanding of automation tools and scripting languages such as Python, C/C++, or Java is desirable
  • Strong understanding of multiple 4G/5G signaling and physical layer test equipment along with their automation interfaces
  • Strong analysis and debugging capabilities to be able to define issues and work with firmware development and systems design teams to close these issues
  • Fundamental facility with build and source code control tools
  • Versatile to learn new architecture and frameworks
  • Experience with network emulators, silicon prototyping, emulation systems, and virtual platforms is a plus
  • English language proficency is required for this position


Work with a team of component validation, integration, protocol test engineers, firmware developers, and system engineers to build firmware verification test cases and end-to-end physical layer performance. Design and develop validation frameworks for the 4G/5G firmware. Design and develop test cases for the 4G/5G firmware and debug and analyze issues found during the testing.

  • Build test automation of 4G/5G UEs, test simulators, and test gNodeBs.
  • Verify key protocol, signal processing, and numerical algorithms with very tight time, latency, and energy budgets
  • Work with Systems/Firmware teams to perform validation of new and existing features
  • Assist in the development of pre-silicon emulation systems/virtual platforms and use them for pre-silicon firmware design and HW verification
  • Evaluate and implement powerful tools for build, formal verification, and test

Education & Experience

  • A bachelor’s or Master's degree in Electrical Engineering, Computer Science, or equivalent is required, and a min. of 5 years of relevant industry experience.

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