ZipRecruiter

Log In

1

Mobile Developer Contract Jobs in California (NOW HIRING)

Worky

Senior Mobile Software Engineer

Santa Clara, CA · On-site

$150 - $200/hr

Partner with backend/platform engineers to define APIs and contracts that work well under field constraints. * Mentor other engineers on mobile architecture and platform-specific best practices.

corpay

Mobile Architect

Sacramento, CA · On-site

$165K - $200K/yr

Establishing standards for mobile development, testing, release quality, and engineering best practices * Partnering with backend teams to define scalable API contracts, authentication patterns, and ...

Corpay

Mobile Architect

Sacramento, CA · On-site

$165K - $200K/yr

Establishing standards for mobile development, testing, release quality, and engineering best practices * Partnering with backend teams to define scalable API contracts, authentication patterns, and ...

JLL

Union Mobile Engineer

Sunnyvale, CA · On-site

Monday - Friday, 8am-5:30pm Union Mobile Engineer What this job involves - Under the direction of ... contract between JLL and the client. This is a position attached to the Collective Bargaining ...

CBRE

Union Mobile Route Engineer

San Leandro, CA · On-site

$78.75/hr

Engineering & Technical Services * Location: Mobile / Route-based (supporting critical ... Compensation for this role is governed by union contract terms and is not individually negotiated.

Judge Group, Inc.

Android Developer

San Leandro, CA · On-site

$75 - $80/hr

Android Software Engineer (Contract) We are not accepting C2C or 1099 arrangements. Location: San ... Develop responsive, performant, and secure mobile application features. * Implement modern Android ...

Procom Consultants Group

UI Engineer

Santa Clara, CA · On-site

$122K - $163K/yr

... Contract Staffing (Staff Augmentation) Permanent Placement (Staff Augmentation) ICAP (Contractor ... As Senior UX/UI Mobile Developer you will work directly with our product, design and test teams to ...

Adidev Technologies Inc

IOS Developer

San Diego, CA · On-site

$30 - $40/hr

As an iOS or Android Mobile Developer for Adidev Technologies Inc., you will be enhancing and ... W2 or Contract 1099 (full time - 40 hours) Salary: $60k to $85k or $30/hr to $40/hr + Depending ...

Krest Global Solutions

React native Engineer

Alameda, CA

$58 - $60/hr

... Contract About the Role: We are looking for a skilled React Native Engineer to join our team and support the ongoing development and maintenance of our cross-platform mobile application. You'll play ...

Procom Services

UI Engineer IV

Santa Clara, CA · On-site

$122K - $163K/yr

... Contract Staffing (Staff Augmentation) Permanent Placement (Staff Augmentation) ICAP (Contractor ... As Senior UX/UI Mobile Developer you will work directly with our product, design and test teams to ...

previous page

Showing results 41-60

All JobsMobile Developer Contract JobsMobile Developer Contract Jobs in California

Mobile Developer Contract information

See California salary details

$11

$54

$81

How much do mobile developer contract jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for mobile developer contract in California is $54.29, according to ZipRecruiter salary data. Most workers in this role earn between $40.82 and $65.48 per hour, depending on experience, location, and employer.

What is a mobile developer contract?

A Mobile Developer Contract job is a temporary or project-based role where a developer creates, maintains, or enhances mobile applications for iOS, Android, or cross-platform environments. Contractors typically work on short-term assignments for companies or clients, either independently or through an agency. These roles may involve app development, bug fixing, performance optimization, or UI/UX improvements. Contract positions provide flexibility and can be remote or on-site, depending on the employer's requirements.

What are the typical responsibilities of a mobile developer contract?

As a Mobile Developer working on a contract, your main responsibilities typically include designing, coding, testing, and deploying mobile applications for iOS or Android platforms based on client requirements. You may also be tasked with debugging, updating existing apps, integrating APIs, and delivering technical documentation. Contractors often work closely with designers, product managers, and QA teams to meet project goals on a set timeline. You’ll need to be proactive in managing your workload, communicating progress, and incorporating feedback, as contract roles often require a higher degree of independence and adaptability.

What are the key skills and qualifications needed to thrive in the mobile developer contract position, and why are they important?

To thrive as a Mobile Developer Contract, you need strong programming skills in languages such as Swift, Kotlin, or React Native, as well as experience with mobile app development frameworks. Familiarity with development tools like Xcode, Android Studio, and version control systems such as Git, and having relevant certifications like Google Associate Android Developer or Apple App Development with Swift is highly beneficial. Excellent problem-solving, communication, and time-management skills help you adapt quickly to new projects and effectively collaborate with remote teams or clients. These competencies ensure high performance, seamless app functionality, and successful delivery of mobile solutions in a contract-based setting.

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

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

What are popular job titles related to Mobile Developer Contract jobs in California?

For Mobile Developer Contract jobs in California, the most frequently searched job titles are:

What job categories do people searching Mobile Developer Contract jobs in California look for?

The top searched job categories for Mobile Developer Contract jobs in California are:

What cities in California are hiring for Mobile Developer Contract jobs?

Cities in California with the most Mobile Developer Contract job openings:

Mobile Developer Contract jobs near you
Infographic showing various Mobile Developer Contract job openings in California as of September 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 60% In-person, and 40% Remote job distribution, with an average salary of $112,932 per year, or $54.3 per hour.

Senior Mobile Software Engineer

Santa Clara, CA • On-site

Picarro, Inc
Environmental Consulting Services • 201 - 500 employees
Learn more about Picarro, Incexternal

$150K - $170K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 17 days ago

Job description

Senior Mobile Software Engineer
Android & iOS
A senior mobile engineer who owns Picarro's mobile experience - field-facing companion apps that connect to physical instruments and the cloud/data platform. This role requires the same product-engineering-driven mindset as our other engineering roles: prototype fast, ship reliable software, and own it in production, with the added constraint of building for field conditions such as intermittent connectivity, outdoor/industrial use, and hardware pairing.
Responsibilities
  • Design and build native or cross-platform mobile applications for Android and iOS that pair with Picarro instruments and integrate with the cloud/data platform.
  • Own offline-first and sync architecture for field use, where connectivity is not guaranteed and data integrity matters.
  • Handle device-level integrations such as Bluetooth/BLE, sensor pairing, and background data collection where relevant.
  • Use AI-assisted development tooling to prototype and iterate quickly on UI and integration work.
  • Own mobile app reliability and performance in production, including crash rates, sync failures, battery/data usage, and root-cause fixes.
  • Partner with backend/platform engineers to define APIs and contracts that work well under field constraints.
  • Mentor other engineers on mobile architecture and platform-specific best practices.
Qualifications
  • 5+ years of mobile engineering experience, with production apps shipped on Android and/or iOS using native Swift/Kotlin or a cross-platform framework such as React Native or Flutter, with a clear rationale for the choice.
  • Real experience with offline-first architecture and data sync patterns.
  • Experience integrating with hardware/sensors via Bluetooth or similar protocols is a strong plus.
  • Comfortable owning a mobile app's full lifecycle, including architecture, release process, monitoring, and production issues.
  • Experience using AI coding assistants in a professional workflow.
  • Background building software as a core product at a software product company, R&D lab, or technology-first organization, rather than internal IT, retail/e-commerce technology operations, or IT services/consulting shops that primarily implement or customize other companies' software.
Nice to Have
  • A public GitHub or similar portfolio showcasing real project work is a strong plus.
  • Experience building apps for field service, industrial, scientific, or instrumentation use cases.
  • Familiarity with the same cloud/data platform stack used by the backend team, enabling smoother API collaboration.
  • Cross-platform architecture experience, including shared business logic across Android and iOS.

The base salary range for this full-time position is $150K to $170K. Our total compensation package includes base salary, bonus eligibility, and equity. Your base salary range and title will be determined based on the location, experience, qualification, skills, knowledge, level, and pay of employees in similar positions.
We offer a comprehensive benefit package including:
  • Medical, Dental, and Vision insurance
  • Flexible Spending Account (FSA) and Health Savings Account (HSA) plans
  • Life, Short-Term Disability, and Long-Term Disability Insurance
  • Paid Time Off and Paid Holidays
  • Employee Referral Program
  • 401K
  • Social events (summer picnic, holiday party, team lunches, etc.)
  • On-site Health & Wellness programs (fitness challenges, outdoor bootcamp, flu-shots, etc.)

About Picarro:
We are the world's leader in timely, trusted, and actionable data using enhanced optical spectroscopy. Our solutions are used in a wide variety of applications, including natural gas leak detection, ethylene oxide emissions monitoring, semiconductor fabrication, pharmaceutical, petrochemical, atmospheric science, air quality, greenhouse gas measurements, food safety, hydrology, ecology, and more. Our software and hardware are designed and manufactured in Santa Clara, California and are used in over 90 countries worldwide based on over 65 patents related to cavity ring-down spectroscopy (CRDS) technology and are unparalleled in their precision, ease of use, and reliability.
At Picarro, we are committed to fostering a diverse and inclusive workplace. All qualified applicants will receive consideration for employment without regard to race, sex, color, religion, national origin, protected veteran status, gender identity, social orientation, or disability. Posted positions are not open to third-party recruiters/agencies, and unsolicited resume submissions will be considered free referrals.
At Picarro, we strive to ensure that all individuals, regardless of their abilities, have equal opportunities. If you are an individual with a disability and require reasonable accommodation to complete any part of the application process or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, please contact Picarro, Inc. at disabilityassistance@picarro.com for assistance.

Apply