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Freelance Mobile Application Developer Jobs in Hackensack, NJ

Injective Labs

Mobile App Developer

New York, NY · On-site +1

  • PTO

Optimize application performance, responsiveness, and reliability across both iOS and Android ... mobile experience. * Participate in code reviews and contribute to engineering best practices.

Barrow Wise Consulting

Mobile Developer

New York, NY · On-site

$70K - $120K/yr

The Mobile Developer will support Barrow Wise's NYC Department of Social Services project and ... Develop the mobile application using Android, Typescript, React, and React Native * Develop ...

IPsoft Inc.

Mobile Engineer

New York, NY

The engineer will help build and improve our mobile application for our customers who are all household names. The expert engineer will possess a passion for pushing technologies to the limits and ...

US Mobile

General Interest Application

New York, NY · On-site

US Mobile is on a mission to revolutionize connectivity. Imagine a world where you can go into a ... engineering, best-in-class user experience, and features that will define the next generation of ...

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Freelance Mobile Application Developer information

See Hackensack, NJ salary details

$58.4K

$120.5K

$172.3K

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

As of Aug 16, 2026, the average yearly pay for freelance mobile application developer in Hackensack, NJ is $120,497.00, according to ZipRecruiter salary data. Most workers in this role earn between $91,100.00 and $139,100.00 per year, depending on experience, location, and employer.

What is a freelance mobile application developer?

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 as a freelance mobile application developer?

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.

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For Freelance Mobile Application Developer jobs in Hackensack, NJ, the most frequently searched job titles are:

What job categories do people searching Freelance Mobile Application Developer jobs in Hackensack, NJ look for?

The top searched job categories for Freelance Mobile Application Developer jobs in Hackensack, NJ are:

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Cities near Hackensack, NJ with the most Freelance Mobile Application Developer job openings:

Freelance Mobile Application Developer jobs near you
Infographic showing various Freelance Mobile Application Developer job openings in Hackensack, NJ as of August 2026, with employment types broken down into 76% Full Time, 18% Part Time, and 6% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $120,497 per year, or $57.9 per hour.

Freelance Mobile App Developer (iOS / Android)

Mindrift

New York, NY • On-site, Remote

$60/hr

Part-time

Re-posted 20 days ago

Job description

Mindrift is looking for skilled Mobile App Developers (React Native, Flutter, Swift, or Kotlin) to join the Tendem project (https://tendem.ai/) and build native and cross-platform mobile applications for real-world use cases. In this role, you'll apply your mobile engineering expertise to build stable, performant, and user-friendly applications for iOS and Android. This part-time remote opportunity is ideal for professionals with hands-on experience shipping iOS and/or Android apps, working with platform APIs, and handling the full mobile development lifecycle.
What We Do
The Mindrift platform connects specialists with innovative technology projects. Our mission is to help develop high-quality AI technologies by combining real-world expertise from professionals across the globe with advanced AI development efforts.
About the Role
This is a freelance role for a Tendem project. As a Mobile App Developer, you'll design, build, and refine mobile applications across categories such as utilities, fitness/wellness, games, productivity, delivery, and content apps - for iOS, Android, or both, using native or cross-platform frameworks.
Key Responsibilities
  • Build mobile applications using React Native, Flutter, Swift (iOS), or Kotlin (Android).
  • Implement responsive mobile UIs that follow platform conventions (iOS HIG, Material Design).
  • Integrate native device features (camera, push notifications, location, storage, biometrics).
  • Connect apps to backend APIs, handle offline state, caching, and synchronization.
  • Implement monetization features where required (in-app purchases, ads, subscriptions).
  • Review, debug, optimize, and refactor mobile application code to improve correctness, performance, battery efficiency, and maintainability.
  • Debug platform-specific issues and prepare builds for distribution (TestFlight, Play Console).

Educational qualifications
  • At least 3 years of relevant experience in mobile app development (required).
  • Bachelor's or Master's Degree in Computer Science, Engineering, Information Technology, or related technical fields is a plus.

Academic and/or Professional Experience
Candidates should have a strong foundation in mobile application development, platform-specific UI/UX patterns, and building stable, high-quality mobile experiences for iOS and Android. We are looking for specialists who can confidently work with native or cross-platform frameworks, integrate device APIs and backend services, and build production-ready mobile applications. Strong attention to detail, performance awareness, and the ability to work independently are essential.
Technical Skills (Essential)
  • Hands-on experience with at least one of: React Native, Flutter, Swift/SwiftUI (iOS), or Kotlin/Jetpack Compose (Android).
  • Solid understanding of mobile UI patterns, navigation, state management, and platform guidelines.
  • Experience integrating REST APIs, handling async data, and managing local storage.
  • Familiarity with native device APIs (notifications, camera, location, storage, biometrics).
  • Experience with mobile build tools, code signing, and submission to App Store / Google Play.
  • Experience implementing in-app purchases, ads, or subscriptions is a plus.
  • Familiarity with backend services such as Firebase, Supabase, or similar is a plus.

Additional requirements
  • Strong attention to detail and commitment to performance, stability, and platform polish.
  • Self-directed work ethic with the ability to ship complete mobile features independently.
  • Portfolio of shipped mobile apps (required, with App Store / Google Play links preferred).
  • English proficiency: Upper-intermediate (B2) or above (required)

Project time expectations
For this project, tasks are estimated to require around 10-20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.
Compensation
On this project, contributors can earn up to $60 per hour equivalent, depending on their level and pace of contribution.
Compensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.
Why this freelance opportunity might be a great fit for you?
  • Work fully remote on your own schedule with just a laptop and stable internet connection.
  • Apply your expertise to real-world technology projects while gaining experience building high-quality solutions for a global platform.
  • Participate in performance-based bonus programs that reward high-quality work and consistent delivery.

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