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Freelance Mobile Application Developer Jobs in California

Android Mobile Application Developer

Cupertino, CA · On-site

$68.75 - $90.25/hr

At least 5 years of experience in building Java/J2EE application; Passionate and enthusiastic about mobile development and new mobile opportunities; Exceptional analytical and problem solving skills;

Mobile Engineer

Pleasanton, CA · On-site

$50K - $58K/yr

We are looking for a phenomenal Application Developer PREFERRED SKILLS: Expertise in LLDB, SQLite ... X design for mobile, wire frames, illustrations, prototyping Deep understanding of C and ...

Mobile Engineer

Pleasanton, CA · On-site

$50K - $58K/yr

We are looking for a phenomenal Application Developer PREFERRED SKILLS: * Expertise in LLDB, SQLite ... Experience with UX design for mobile, wire frames, illustrations, prototyping * Deep understanding ...

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Showing results 1-20

Freelance Mobile Application Developer information

See California salary details

$52.8K

$109K

$155.9K

How much do freelance mobile application developer jobs pay per year?

As of Aug 3, 2026, the average yearly pay for freelance mobile application developer in California is $109,035.00, according to ZipRecruiter salary data. Most workers in this role earn between $82,400.00 and $125,800.00 per year, depending on experience, location, and employer.

What is a Freelance Mobile Application Developer job?

A Freelance Mobile Application Developer is a self-employed professional who designs, develops, and maintains mobile applications for clients on a contract basis. They work with different platforms like iOS and Android, using programming languages such as Swift, Kotlin, and Flutter. Responsibilities can include coding, testing, UI/UX design, and app deployment. Freelancers often manage multiple projects, set their rates, and determine their own schedules. This role offers flexibility and the opportunity to work with a variety of industries and clients.

What is a typical work process or workflow for a Freelance Mobile Application Developer?

A Freelance Mobile Application Developer typically works closely with clients to gather requirements, define project scope, and set milestones. After planning, you’ll design the app’s architecture, develop features, and perform regular testing to ensure quality and functionality. Communication is key, often involving regular updates to clients and collaborative tools like project management platforms or version control systems. Developers are also responsible for deploying completed apps to app stores and providing ongoing maintenance or updates as needed. This workflow demands good organization, proactive communication, and the ability to manage multiple projects simultaneously.

What are the key skills and qualifications needed to thrive in the Freelance Mobile Application Developer position, and why are they important?

To thrive as a Freelance Mobile Application Developer, you need in-depth knowledge of mobile development frameworks (such as React Native, Flutter, Swift, or Kotlin), as well as experience with UI/UX design and a solid portfolio of released apps. Familiarity with source control systems like Git, mobile app deployment processes, and optionally relevant certifications (like Google Associate Android Developer) are commonly expected. Strong self-motivation, time management, problem-solving, and client communication skills are essential soft skills for success in a freelance environment. These abilities help ensure the timely delivery of high-quality mobile applications, satisfied clients, and a sustainable independent career.

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 are popular job titles related to Freelance Mobile Application Developer jobs in California? For Freelance Mobile Application Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Freelance Mobile Application Developer jobs in California look for? The top searched job categories for Freelance Mobile Application Developer jobs in California are:
What cities in California are hiring for Freelance Mobile Application Developer jobs? Cities in California with the most Freelance Mobile Application Developer job openings:
Infographic showing various Freelance Mobile Application Developer job openings in California as of July 2026, with employment types broken down into 77% Full Time, 17% Part Time, 1% Temporary, and 5% Contract. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution, with an average salary of $109,035 per year, or $52.4 per hour.

Mobile Application Developer

Collabera

Foster City, CA

Contractor

Re-posted 12 days ago


Job description

Company Description

We provide cost-effective, high quality IT resources to meet talent needs through Staff Augmentation, Global Talent Management, Value Added Services through CLASS (Competency Leveraged Advanced Staffing & Solutions) Permanent Placement Services and Vendor Management Programs.
Collabera has been a leader in IT staffing for over 24 years and is one of the largest diversity IT staffing firms in the industry. We are known for our high-touch, customer-centric approach, offering our clients unmatched quality, responsiveness and flexibility. We are appreciated by our clients for our streamlined execution, highly efficient service and exceptional talent management that go above and beyond traditional staffing services. Collabera has been named the Best Staffing Firm to Work For in the large firm category by Staffing Industry Analysts, the global advisor on contingent work, for four consecutive years.

Job Description

Position Details:
Industry: Payment/Finance
Work Location: Foster City, CA
Job Title: Mobile Application Developer
Duration: 1 year with possible extensions.
The Merchant & Acquiring Processing team is looking for talented engineers for the Foster City office to drive the evolution of mobile payment solutions and to build enterprise mobile enablement practice. You will work closely with UX, product management, and other teams to conceive, design, and create unique payment & analytics capabilities on the mobile device . Your will work closely with various stakeholders to help establish mobile development standards. We are looking for someone with serious iOS & Android Software Development skills, strong interest in all things mobile, and a passion for delivering high quality, rock-solid apps.
Must Have Skills:
    Must have IOS and Android, app development experience.
    Manager said Rest java hands-on experience will be key for this role
Nice to Have Skills:
    Financial, payments background is nice but not a must haveKey
Responsibilities:
    Design, lead and implement iOS & Android mobile application as part of our Mobile UI team
    Interface with various stakeholders and establish rock solid mobile enablement practice
    Work as part of scrum team executing the product requirements by working with UX, product management and other teams in an agile manner
    Provide subject matter expertise for mobile platform
    Develop mobile framework and UI based on best practices
    Execute POCs for visionary initiatives
    Work independently and provide guidance to junior developers
    Review and challenge requirements and implementations designs
    Conduct peer reviews for implementation of new features
    Communicate status frequently in daily Scrum
    Participate in cross-group and internal customer feature demos

Qualifications

Qualifications:
    Bachelors in Computer Science or other technical field
    8+ years of overall software development experience
    4+ years of professional experience in developing iOS & Android mobile applications
    Expertise in Android SDK, Java and related technologies
    Strong computer science fundamentals in data structures, algorithms and complexity analysis
    Passion for user experience and knowledge of Android Application Patterns
    Passion for Mobile Apps
    Knowledge of web services standards and related technologies (REST)
    Familiarity with web service development, DBMS, SQL, UNIX shell scripts is a plus
    Experience with tools like Rally, JIRA, Sharepoint, wiki, etc
    Experience with Agile development methodology
    Sound planning, organizational and problem solving skills, excellent project management skills
    Ability to provide thought leadership on mobile excellence and practice
    Ability and desire to learn new skills and take on new initiatives
    Excellent verbal and written communication skills
    Thrive in self-motivated internal-innovation driven environment

Additional Information
  • straight to on-site Interviews.