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Sr. Test BaseStation Designer

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Apple

1mo ago

  • Job
    Full-time
    Senior Level
  • Engineering
    Software Engineering
  • San Diego

AI generated summary

  • You should have experience in 4G LTE/5G systems, programming skills (C, C++, scripting), knowledge of 3GPP protocols, and familiarity with SDRs and test emulators. Communication skills are essential.
  • You will design, develop, and maintain cellular protocol tests, integrate protocol layers, optimize performance, and create technical documentation for a wireless test base station.

Requirements

  • Key Qualifications:
  • Experience in building complex wireless systems and simulations
  • In depth knowledge in 4G LTE /5G NR Cellular Network Architecture
  • Must have excellent software developing and debugging skills including design, programming (C, C++, script) and debugging
  • Have depth of knowledge in 3GPP 4G/5G protocols (L1/L2/L3)
  • Experience with 4G/5G physical layer standards and software defined radios (SDR)
  • Excellent knowledge on one or multiple cellular technologies: 4G LTE, 5G NR SA/NSA.
  • System integration and validation experience of 4G LTE/5G-NR RAN (RRC, SDAP, PDCP, RLC, MAC & PHY) functions for both control plane and user plane based on 3GPP standards
  • Understanding of ORAN split functions architecture and front-haul standards.
  • Knowledge of 5G gNB DU/gNB CU, and F1 interface is a plus
  • Working knowledge of Implementing Test Base Station and RAN/CN network emulators (Keysight, R&S, Anritsu, Anite etc).
  • Strong experience in cellular protocol stack host test or simulation environment development is key.
  • Highly motivated and self-directed, fast learner, a good team player
  • Excellent verbal and written communication skills
  • Education & Experience:
  • Bachelor or graduate degree in Electrical Engineering, Computer Engineering, Computer Science or equivalent degree
  • Additional Requirements:
  • Standard Software development & tool environments is a plus
  • Understanding of NAS layer protocol and UE emulation is helpful

Responsibilities

  • This role requires critical expertise in multiple layers in cellular protocols, experience with UE and/or NW protocols development for various 3GPP technologies is essential. The candidate must demonstrate solid understanding of relevant protocol procedures and network interactions. The duties of this position will include design, develop, and maintain cellular protocol device side host test and network simulation environment.
  • As a Test Base Station Architect, you will be responsible for design, implementation, integration approach and verification of a wireless test base station We need you to be responsible for the architecture, design and development of test base station with a focus on integration of different protocol layer implementations.
  • You are a resourceful specialist in cellular network simulation systems and capabilities, including a working understanding of the wireless system platform and the use cases. You will participate in HW bring-up, performance characterization and optimization. You will create technical design documents and source material for user documentation.

FAQs

What responsibilities will I have as a Sr. Test BaseStation Designer at Apple?

You will be responsible for the design, implementation, integration approach, and verification of a wireless test base station. Your duties will also include developing and maintaining cellular protocol device-side host test and network simulation environments, as well as participating in hardware bring-up, performance characterization, and optimization.

What qualifications are required for this position?

Key qualifications include experience in building complex wireless systems and simulations, in-depth knowledge of 4G LTE / 5G NR cellular network architecture, strong software development and debugging skills (including proficiency in C, C++, and scripting), and a deep understanding of 3GPP 4G/5G protocols (L1/L2/L3).

Is experience with specific tools or technologies required?

Yes, experience with implementing test base stations and RAN/CN network emulators (such as Keysight, R&S, Anritsu, Anite) is important. Additionally, knowledge of 5G gNB DU/gNB CU and F1 interfaces, as well as understanding of ORAN split functions architecture and front-haul standards, is a plus.

What educational background is preferred for this role?

A Bachelor’s or graduate degree in Electrical Engineering, Computer Engineering, Computer Science, or an equivalent degree is preferred for this position.

What kind of work environment can I expect at Apple?

At Apple, you can expect a dynamic and encouraging work environment where innovation and collaboration are the norms. The people you work with are dedicated to crafting extraordinary products and services used by millions worldwide.

What kind of communication skills are important for this job?

Excellent verbal and written communication skills are essential, as you will need to create technical design documents and source material for user documentation, as well as collaborate effectively with multi-functional teams.

What personal traits are valued in candidates for this position?

The ideal candidate should be highly motivated, self-directed, a fast learner, and a good team player willing to contribute to a high-paced environment focused on innovation.

What is the base pay range for this position?

The base pay range for this role is between $166,600 and $296,300, which depends on your skills, qualifications, experience, and location.

Are there additional skills or knowledge that would be beneficial for this role?

Yes, familiarity with standard software development and tool environments is a plus, and an understanding of NAS layer protocol and UE emulation would also be helpful.

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Employees
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We’re a diverse collective of thinkers and doers, continually reimagining what’s possible to help us all do what we love in new ways. And the same innovation that goes into our products also applies to our practices — strengthening our commitment to leave the world better than we found it. This is where your work can make a difference in people’s lives. Including your own. Apple is an equal opportunity employer that is committed to inclusion and diversity.