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Junior Mobile Application Developer Jobs in California

AgreeYa Solutions

iOS Mobile Engineer

Los Angeles, CA · On-site

Mentor junior mobile engineers and promote best practices across iOS and Android development. * Partner with business stakeholders to translate product requirements into scalable mobile solutions.

Green Dot Corporation

Mobile Engineer

Los Angeles, CA · Hybrid

$149K - $214K/yr

Mentor junior mobile engineers and promote best practices across iOS and Android development ... Important Notice on Application Accuracy We value integrity in our hiring process. Please ensure ...

DivIHN

Senior Mobile DevOps Engineer

Lake View Terrace, CA · On-site

$132K - $169K/yr

Android application development ecosystem * iOS application development ecosystem * Mobile ... Azure DevOps * GitHub Actions * Jenkins * Fastlane * Gradle * Xcode Build Tools * Experience ...

VIVA USA INC

Senior Mobile DevOps Engineer

Sylmar, CA · On-site

$132K - $169K/yr

Proven expertise managing the complete mobile application lifecycle from development through App Store and Google Play Store releases. Experience working in large-scale enterprise environments ...

Green Dot Corporation

Mobile Engineer

Los Angeles, CA · On-site

$149K - $214K/yr

Mentor junior mobile engineers and promote best practices across iOS and Android development ... Important Notice on Application Accuracy We value integrity in our hiring process. Please ensure ...

Abbott

Mobile Devops Engineer

Los Angeles, CA · On-site

$140 - $190/hr

Android application development ecosystem * iOS application development ecosystem * Mobile ... Azure DevOps * GitHub Actions * Jenkins * Fastlane * Gradle * Xcode Build Tools * Experience ...

Socket.dev

Mobile Engineer

Los Angeles, CA · On-site

$149 - $214/hr

Mentor junior mobile engineers and promote best practices across iOS and Android development ... Important Notice on Application Accuracy We value integrity in our hiring process. Please ensure ...

Cat Technology Inc

Sr. Mobile Developer

Lake Forest, CA · On-site

As part of our continued record growth, loanDepot is adding a Sr. Mobile Developer to support our ... Bachelors in Computer Science or related degree At least 3 years of relevant mobile application ...

ClifyX

Application Developer

Mountain View, CA · On-site

ClifyX is seeking an Application Developer to join their team. The role involves utilizing ... Preferred : • Computer Science degree or equivalent. • Mobile App or Game development. • 2+ ...

Neshent Technologies

We are seeking a skilled Android/iOS Mobile Developer with strong Java development experience to ... Troubleshoot and resolve application defects and production issues. * Conduct code reviews and ...

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All JobsMobile Application Developer JobsJunior Mobile Application Developer JobsJunior Mobile Application Developer Jobs in California

Junior Mobile Application Developer information

What does a junior mobile application developer do?

A Junior Mobile Application Developer assists in designing, developing, and maintaining mobile applications for platforms like Android and iOS. They work under the supervision of senior developers, writing code, fixing bugs, and testing new features to improve app functionality and user experience. This role often involves collaborating with designers, product managers, and other team members to deliver high-quality mobile apps. Junior developers are also expected to stay updated on the latest mobile technologies and best practices while continuously learning to advance their skills.

What are the key skills and qualifications needed to thrive as a junior mobile application developer, and why are they important?

To thrive as a Junior Mobile Application Developer, you need a solid understanding of programming languages (such as Java, Kotlin, or Swift), basic UI/UX principles, and a relevant degree or coursework in computer science or software engineering. Familiarity with integrated development environments like Android Studio or Xcode, version control systems like Git, and knowledge of APIs are commonly expected. Strong problem-solving abilities, attention to detail, and effective communication skills help you collaborate and adapt in a fast-evolving environment. These skills are vital for building reliable, user-friendly apps and effectively contributing to development teams.

What are some typical challenges a junior mobile application developer might face in their first year on the job?

As a Junior Mobile Application Developer, you may encounter challenges such as adapting to rapidly changing technologies, learning company-specific coding standards, and debugging complex issues in both Android and iOS environments. Collaborating effectively with designers, QA testers, and senior developers is also essential, as communication gaps can impact project timelines. Overcoming these challenges often involves proactive learning, seeking feedback, and leveraging mentorship opportunities within your team.

What is the difference between Junior Mobile Application Developer vs Mobile App Developer?

AspectJunior Mobile Application DeveloperMobile App Developer
Experience LevelEntry-level, 0-2 yearsMid to senior level, 2+ years
ResponsibilitiesAssisting in app development, testing, bug fixingDesigning, developing, and maintaining mobile applications
Required SkillsBasic knowledge of programming languages (Java, Swift), UI/UX fundamentalsAdvanced coding skills, architecture design, problem-solving
Work EnvironmentTeam collaboration, supervised tasksIndependent work, project ownership

The main difference between a Junior Mobile Application Developer and a Mobile App Developer lies in experience, responsibilities, and skill level. Junior developers typically assist with development tasks and have foundational skills, while Mobile App Developers handle more complex projects independently. Employers often seek more experience for Mobile App Developer roles, making the Junior role ideal for those starting their careers.

What are the most commonly searched types of Mobile Application Developer jobs in California?

The most popular types of Mobile Application Developer jobs in California are:

What cities in California are hiring for Junior Mobile Application Developer jobs?

Cities in California with the most Junior Mobile Application Developer job openings:

Junior Mobile Application Developer jobs near you
Infographic showing various Junior Mobile Application Developer job openings in California as of August 2026, with employment types broken down into 81% Full Time, 15% Part Time, and 4% Contract. Highlights an 91% Physical, 3% Hybrid, and 6% Remote job distribution.

iOS Mobile Engineer

AgreeYa Solutions

Los Angeles, CA • On-site

Other

Posted 17 days ago

Job description

Hybrid- Principal Mobile Engineer;

12 Months Contract

Los Angeles, CA

Job Summary

We are seeking a Principal Mobile Engineer with deep expertise in iOS development and strong working knowledge of Android, who will drive the design, development, and evolution of AI enabled mobile applications. This role combines hands-on technical leadership, mobile architecture ownership, and mentorship, while partnering closely with Product, Design, Backend, Data, and AI teams.

Key Responsibilities

  • Lead the architecture and development of native iOS applications, ensuring high performance, reliability, and scalability across devices.
  • Provide technical direction and code-level leadership for Android development to ensure cross-platform consistency and quality.
  • Define and enforce mobile engineering standards, best practices, and reusable components across the mobile ecosystem.
  • Implement on-device and cloudbased ML capabilities using modern mobile and backend frameworks.
  • Architect and develop native iOS applications using Swift and SwiftUI, ensuring performance, scalability, and security.
  • Collaborate with cross-functional teams including Product, Design, Backend Engineering, and QA to deliver seamless mobile experiences.
  • Lead technical initiatives to improve mobile CI/CD pipelines, crash analytics, and performance monitoring.
  • Implement observability and monitoring solutions using tools like Firebase and Xcode Instruments.
  • Mentor junior mobile engineers and promote best practices across iOS and Android development.
  • Partner with business stakeholders to translate product requirements into scalable mobile solutions.
  • Operate in an AI-driven SDLC environment, leveraging tools like GitHub Copilot and Xcode AI integrations
  • Implementing and managing Datadog dashboards, Google and Adobe analytics. monitors, and alerts for mobile applications

Required Qualifications

  • 10+ years of mobile development experience, with 3+ years in a technical leadership role focused on iOS.
  • Expert-level proficiency in Swift, Swift UI, Combine, and UIKit.
  • Working knowledge of Kotlin, and Android architecture components.
  • Experience with Azure DevOps, Git, Fastlane, and Firebase.
  • Familiarity with App Store and Google Play deployment processes, including TestFlight and internal testing tracks.
  • Experience operating in cloudconnected mobile architecture (Azure or AWS).
  • Strong understanding of RESTful APIs, OAuth2, and mobile security best practices.
  • Strong understanding of accessibility standards such as WCAG and ARIA and be able to implement inclusive design practices to ensure mobile applications are usable by people of all abilities.
  • Experience in implementing and managing Datadog dashboards, Google and Adobe analytics. monitors, and alerts for mobile applications.
  • Experience with automated testing, unit testing, TDD, and CI/CD pipelines.
  • Development Tools: Xcode, Android Studio, Github, Jira, Confluence, Figma.
  • Familiarity with mobile analytics, crash reporting, and user behavior tracking.
  • Ability to work in a fast-paced, agile environment with AI-enhanced workflows.
  • Strong Project Organization Skill with budgeting, scope
  • Strong Communication Skill

Preferred Qualifications

  • Experience in fintech or consumer-facing mobile platforms.
  • Familiarity with operational domains such as mobile payments, identity verification, and push notification systems.

Contributions to open-source mobile libraries or technical publications

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