JobsEmbedded 5G/4G Cellular RF Software/Firmware Engineer
Apple logo

Embedded 5G/4G Cellular RF Software/Firmware Engineer

Apple

Location

San Diego, CA, Sunnyvale, CA

Type

Full-time

Posted

5/5/2026

Compensation

Not listed

Undergraduate with 2+ Years of Experience
H-1B FY202699.0% approval+30% YoY
👑 Elite sponsor

Job description

As a Wireless Firmware Engineer on the physical layer development team, you will be integral to the embedded 5G/4G/multimode cellular firmware efforts within a silicon design group. This role involves crafting sophisticated embedded firmware that enhances product performance and collaborating with various product development teams at Apple. You will work on transforming improved hardware elements into a cohesive design while pushing the boundaries of wireless systems. Your contributions will directly impact the innovation of new cellular technologies.

Requirements

  • BS degree and a minimum of 10 years of relevant industry experience.
  • Knowledge of mobile communications in 4G/5G 3GPP protocols and physical layer and radio aspects.
  • Solid understanding of digital signal processing and RF fundamentals.
  • Excellent command of C and C++, with working experience in compilers, build, and source code control tools.
  • Working knowledge of CPU architecture, HW/SW interfaces, and memory management.
  • Proficiency with debugging in embedded software systems and familiarity with JTAG and ETM Trace tools.
  • Knowledge of communication theory, wireless standards, radio architecture, and interfaces.
  • Previous working experience in a real-time embedded product.
  • Previous working experience developing RFSW for a cellular modem.

Responsibilities

  • Craft sophisticated embedded firmware for cellular technologies.
  • Collaborate with cross-functional teams to integrate hardware and software designs.
  • Engage in open debates about ideas and adapt to evolving requirements.
  • Design and productize state-of-the-art cellular SoCs.
  • Push the industry boundaries of wireless systems to improve product experiences.

Benefits

  • Employees at Apple are often offered comprehensive benefits that support physical and mental well-being—flexible medical plans, confidential counseling, onsite wellness centers at major campuses, and resources for fitness and daily life. Families typically receive fertility support, paid parental leave with gradual return, caregiving leave, and dependent-care guidance, while financial perks commonly include stock grants (with purchase discounts), 401(k) matching, and income-protection coverage. Employees also see robust time off, Apple University learning and tuition reimbursement, donation matching and paid volunteer hours, and deep product and partner discounts.

H-1B filing history

Public USCIS petition and DOL LCA counts · latest USCIS FY2026, LCA FY2026

Filing entity: Apple Inc

As of Aug 23, 2026

Initial approvals

1,065

FY2026

Approval rate

99.0%

FY2026

LCA certified

9,221

FY2026

Entry-level share

5.6%

FY2026

Initial approvals YoY

+30%

Trend

LCA certified YoY

-35%

Trend

Initial approvals by fiscal year

Approval rate by fiscal year

Continuing vs initial approvals

LCA certified positions by quarter

LCA certified positions by fiscal year

Based on public USCIS and DOL filings; not a sponsorship guarantee.

Is this posting expired or inaccurate?