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Test Base Station Designer, Wireless Technologies & Ecosystems

Apple· Wireless Technologies and Ecosystems
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San Diego, CA$175k - $308.5kFull-timePosted 1w ago

About the role

Role focused on design, development, and validation of a Test Base Station, with emphasis on 4G/5G protocols, scheduling algorithms, and pre-silicon emulation. Requires strong cellular protocol knowledge, software development in C/C++, and experience with multi-processing/multi-threading in a fast-paced environment at Apple.

Responsibilities

  • Specify, design, and implement Scheduler software of Test Base Station.
  • Implement key scheduling, control processing in tight timeline, latency, and energy constraints.
  • Development of pre-silicon emulation systems/virtual platforms to use in pre-silicon Layer1 Control SW design and verification.
  • Evaluate and implement leading edge tools for build, verification, and test.
  • Define methodologies and standards.
  • Guide test executors in performing validation of new and existing features.

Qualifications

  • BS/BA in a related field with 5+ years of relevant industry experience (or equivalent).
  • A good understanding of cellular protocol stacks, particularly 5G.
  • Knowledge of cellular communication standards: 6G, 5G NR, 4G LTE, PHY Downlink/Uplink channels and signals.
  • Software development experience and debugging skills in C/C++.
  • Experience with multi-processing and multi-threading based implementations.
  • Good fundamentals in object-oriented SW design and test techniques and methodologies.
  • Master’s or PhD in wireless communication or electrical engineering.
  • Strong understanding of cellular Downlink/Uplink procedures - PDCCH/PDSCH/RACH, DCI, Scheduling Request, HARQ, SRS, CSI, Link adaptation and other scheduler algorithms.
  • Experience in investigating and troubleshooting scheduler issues to optimize performance.
  • Strong analysis and debugging capabilities and collaboration skills.
  • Proficiency in Python and C/C++, with automation tool chain familiarity.
  • Working knowledge of 4G/5G signaling and protocol test equipment (Keysight, Anritsu, R&S) and their automation interfaces.
  • Solid knowledge in Layer 2/Layer 3/ NAS and network performance optimization (a plus).
  • Experience with network emulators, silicon prototyping, emulation systems, and virtual platforms (a plus).
  • Strong written and verbal communication skills.
  • Ability to modernize legacy systems and adapt to new AI architectures.
  • Highly motivated, self-directed, fast learner, team player.
  • Excellent verbal and written communication skills.

Skills

Required:Scheduler design and implementationC/C++ software developmentMulti-processing / multi-threadingCellular protocols (4G/5G)Python scriptingAutomation tooling / test automationCommunication skills
Nice to have:Hardware test equipment knowledgeNetwork performance optimization

Benefits

  • Comprehensive medical and dental coverage
  • Retirement benefits
  • Discounted products and free services
  • Educational expense reimbursement including tuition
  • Eligibility for discretionary bonuses or commission payments and relocation benefits
  • Employee stock purchase plan and stock programs
Last updated Oct 16, 2026. Interested? Apply on the company site.

About Apple

Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support.

Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support.

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