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Cellular Protocol Development Engineer

Apple

Engineering Jobs

Cellular Protocol Development Engineer

full-timePosted: Oct 28, 2025

Job Description

Join the Wireless Technologies and Ecosystems (WTE) organization and be part of an outstanding team of engineers, working with multi-functional teams to drive innovation and develop products used by millions worldwide. We are looking for a highly reciprocal individual who can excel in a high-paced environment. Be ready to make something extraordinary when you come here. Dynamic, encouraging people and innovative, industry-defining technologies are the norm at Apple. The people who work here have reinvented and defined entire industries with our products and services. The same real passion for innovation also applies to our business practices - strengthening our dedication to leave the world better than we found it. You should join Apple if you want to help deliver the next amazing Apple product. Apple’s Cellular Software team is seeking versatile, highly motivated and focused engineers to work across layers on groundbreaking cellular technologies. The position involves identifying and/or developing core cellular technologies that solves everyday problems for customers using iPhone, iPad, Watch and other wireless product lines. We are passionate about keeping our users connected 24/7 wherever they go. This team takes pride in not just coming up with proven software invent but also in disrupting traditional models of the cellular ecosystem. We do whatever it takes to bring user experience to the next level. Our members enjoy the flexibility to work on all aspects of Cellular Protocol software - SIM, NAS, AS and iOS interfaces, to come up with the best possible solution for any given problem. Are you equally passionate about cellular technologies and have the dream to work on groundbreaking cellular technologies? Then we are looking for you. As part of this team you will impact iPhone user experience worldwide. This role requires critical expertise in multiple layers in cellular protocols, experience with UE and/or NW protocols development for various 3GPP technologies is important. The candidate must demonstrate tried understanding of relevant protocol procedures and network interactions.

Locations

  • San Diego, California, United States 92128

Salary

Estimated Salary Rangemedium confidence

25,000,000 - 60,000,000 INR / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • working with multi-functional teamsintermediate
  • excel in a high-paced environmentintermediate
  • innovationintermediate
  • develop productsintermediate
  • critical expertise in multiple layers in cellular protocolsintermediate
  • experience with UE and/or NW protocols developmentintermediate
  • 3GPP technologiesintermediate
  • understanding of relevant protocol proceduresintermediate
  • network interactionsintermediate

Required Qualifications

  • Strong coding skill in C or C++ (experience)
  • Algorithm, Data Structures, Embedded System Knowledge (experience)
  • Bachelor or Graduate degree in Electrical Engineering, Computer Engineering, Computer Science or equivalent degree. (degree in or graduate degree in electrical engineering)

Preferred Qualifications

  • Experience with cellular protocol stacks preferred 2G, 3G, LTE and 5G NR. (experience)
  • Stay adaptable in how you solve problems. (experience)
  • Pursue excellence by removing ambiguity and acting decisively. (experience)

Responsibilities

  • Apple’s Cellular Software team is seeking versatile, highly motivated and focused engineers to work across layers on groundbreaking cellular technologies. The position involves identifying and/or developing core cellular technologies that solves everyday problems for customers using iPhone, iPad, Watch and other wireless product lines. We are passionate about keeping our users connected 24/7 wherever they go. This team takes pride in not just coming up with proven software invent but also in disrupting traditional models of the cellular ecosystem. We do whatever it takes to bring user experience to the next level. Our members enjoy the flexibility to work on all aspects of Cellular Protocol software - SIM, NAS, AS and iOS interfaces, to come up with the best possible solution for any given problem. Are you equally passionate about cellular technologies and have the dream to work on groundbreaking cellular technologies? Then we are looking for you. As part of this team you will impact iPhone user experience worldwide.
  • This role requires critical expertise in multiple layers in cellular protocols, experience with UE and/or NW protocols development for various 3GPP technologies is important.
  • The candidate must demonstrate tried understanding of relevant protocol procedures and network interactions.
  • Responsible for the end-to-end lifecycle of critical cellular features
  • Translate complex 3GPP specifications (Rel-16, Rel-17 and beyond) for 5G NR and 4G LTE into efficient, maintainable C code
  • Own features from architectural design through implementation, focusing on NAS (5GMM/5GSM) protocol layers
  • Design and implement state machines and data structures
  • Lead interactions within a multi-threaded RTOS environment
  • Debug system-level issues on target hardware
  • Analyze protocol logs from test teams
  • Collaborate with multiple cross-functional teams
  • Ensure feature stability and performance
  • Drive features and bug fixes through integration, field testing, commercialization, and post-launch support

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Apple logo

Cellular Protocol Development Engineer

Apple

Engineering Jobs

Cellular Protocol Development Engineer

full-timePosted: Oct 28, 2025

Job Description

Join the Wireless Technologies and Ecosystems (WTE) organization and be part of an outstanding team of engineers, working with multi-functional teams to drive innovation and develop products used by millions worldwide. We are looking for a highly reciprocal individual who can excel in a high-paced environment. Be ready to make something extraordinary when you come here. Dynamic, encouraging people and innovative, industry-defining technologies are the norm at Apple. The people who work here have reinvented and defined entire industries with our products and services. The same real passion for innovation also applies to our business practices - strengthening our dedication to leave the world better than we found it. You should join Apple if you want to help deliver the next amazing Apple product. Apple’s Cellular Software team is seeking versatile, highly motivated and focused engineers to work across layers on groundbreaking cellular technologies. The position involves identifying and/or developing core cellular technologies that solves everyday problems for customers using iPhone, iPad, Watch and other wireless product lines. We are passionate about keeping our users connected 24/7 wherever they go. This team takes pride in not just coming up with proven software invent but also in disrupting traditional models of the cellular ecosystem. We do whatever it takes to bring user experience to the next level. Our members enjoy the flexibility to work on all aspects of Cellular Protocol software - SIM, NAS, AS and iOS interfaces, to come up with the best possible solution for any given problem. Are you equally passionate about cellular technologies and have the dream to work on groundbreaking cellular technologies? Then we are looking for you. As part of this team you will impact iPhone user experience worldwide. This role requires critical expertise in multiple layers in cellular protocols, experience with UE and/or NW protocols development for various 3GPP technologies is important. The candidate must demonstrate tried understanding of relevant protocol procedures and network interactions.

Locations

  • San Diego, California, United States 92128

Salary

Estimated Salary Rangemedium confidence

25,000,000 - 60,000,000 INR / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • working with multi-functional teamsintermediate
  • excel in a high-paced environmentintermediate
  • innovationintermediate
  • develop productsintermediate
  • critical expertise in multiple layers in cellular protocolsintermediate
  • experience with UE and/or NW protocols developmentintermediate
  • 3GPP technologiesintermediate
  • understanding of relevant protocol proceduresintermediate
  • network interactionsintermediate

Required Qualifications

  • Strong coding skill in C or C++ (experience)
  • Algorithm, Data Structures, Embedded System Knowledge (experience)
  • Bachelor or Graduate degree in Electrical Engineering, Computer Engineering, Computer Science or equivalent degree. (degree in or graduate degree in electrical engineering)

Preferred Qualifications

  • Experience with cellular protocol stacks preferred 2G, 3G, LTE and 5G NR. (experience)
  • Stay adaptable in how you solve problems. (experience)
  • Pursue excellence by removing ambiguity and acting decisively. (experience)

Responsibilities

  • Apple’s Cellular Software team is seeking versatile, highly motivated and focused engineers to work across layers on groundbreaking cellular technologies. The position involves identifying and/or developing core cellular technologies that solves everyday problems for customers using iPhone, iPad, Watch and other wireless product lines. We are passionate about keeping our users connected 24/7 wherever they go. This team takes pride in not just coming up with proven software invent but also in disrupting traditional models of the cellular ecosystem. We do whatever it takes to bring user experience to the next level. Our members enjoy the flexibility to work on all aspects of Cellular Protocol software - SIM, NAS, AS and iOS interfaces, to come up with the best possible solution for any given problem. Are you equally passionate about cellular technologies and have the dream to work on groundbreaking cellular technologies? Then we are looking for you. As part of this team you will impact iPhone user experience worldwide.
  • This role requires critical expertise in multiple layers in cellular protocols, experience with UE and/or NW protocols development for various 3GPP technologies is important.
  • The candidate must demonstrate tried understanding of relevant protocol procedures and network interactions.
  • Responsible for the end-to-end lifecycle of critical cellular features
  • Translate complex 3GPP specifications (Rel-16, Rel-17 and beyond) for 5G NR and 4G LTE into efficient, maintainable C code
  • Own features from architectural design through implementation, focusing on NAS (5GMM/5GSM) protocol layers
  • Design and implement state machines and data structures
  • Lead interactions within a multi-threaded RTOS environment
  • Debug system-level issues on target hardware
  • Analyze protocol logs from test teams
  • Collaborate with multiple cross-functional teams
  • Ensure feature stability and performance
  • Drive features and bug fixes through integration, field testing, commercialization, and post-launch support

Target Your Resume for "Cellular Protocol Development Engineer" , Apple

Get personalized recommendations to optimize your resume specifically for Cellular Protocol Development Engineer. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Cellular Protocol Development Engineer" , Apple

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

Hardware

Answer 10 quick questions to check your fit for Cellular Protocol Development Engineer @ Apple.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.