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Mobile Developer Jobs in Belleville, IL (NOW HIRING)

The Timberline Group

Xamarin Developer

Saint Louis, MO · On-site +1

The Xamarin Senior Developer, Mobile & Internet, works with other members of the New Product Development team, with primary responsibility to design, develop and enhance innovations on a variety of ...

The Timberline Group

Mobile iOS Developer

Saint Louis, MO · On-site +1

$50.25 - $69.25/hr

As a developer within the Mobile Infrastructure team, you'll help lead our efforts to establish our mobile development capabilities.Our ability to deliver mobile solutions to our clients, our ...

Sonsoft Inc

UI Mobile Web Developer

Saint Louis, MO · On-site

$48.50 - $63.25/hr

... engineering. At least 1 year of experience in Responsive Web Design At least 1 year of experience in Single Page Application development At least 1 year of experience in Mobile web application on ...

The Timberline Group

Angular .Net Developer

Saint Louis, MO · On-site +1

$53.25 - $65.25/hr

This is a Mid to Senior-level full stack Software Developer position. This team is an Agile team ... The team creates and maintains public facing web and mobile applications using many modern ...

Pyramid IT

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

... Mobile Development and Test Automation The company was incorporated in the State of Georgia in 1996 ... Founded 1996 Role: Java Developer Location - St. Louis, MO Duration: Long term contract Work ...

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Mobile Developer information

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$10

$53

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How much do mobile developer jobs pay per hour?

As of Aug 29, 2026, the average hourly pay for mobile developer in Belleville, IL is $53.44, according to ZipRecruiter salary data. Most workers in this role earn between $40.14 and $64.42 per hour, depending on experience, location, and employer.

What is a mobile developer?

A mobile developer is involved in app development for smartphone and mobile applications. Your job duties include creating a detailed app development plan, writing source code, and testing finished builds. Exact responsibilities may vary depending on app type, platform, your company, and the industry. The career requires you have excellent communication skills, as you collaborate with a team of other developers on a daily basis. Most mobile developers have at least a bachelor’s degree in computer science.

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

To thrive as a Mobile Developer, you need strong programming skills in languages like Swift, Kotlin, or Java, along with experience in mobile app development frameworks and a relevant degree or equivalent experience. Familiarity with integrated development environments (IDEs) such as Android Studio or Xcode, and knowledge of version control systems like Git, are crucial, as are certifications in mobile platforms. Strong problem-solving, attention to detail, and effective teamwork set standout professionals apart in this field. These competencies ensure the development of high-quality, user-friendly mobile applications that meet client and market needs.

What are some common challenges mobile developers face when working with cross-platform frameworks?

Mobile Developers often encounter challenges when using cross-platform frameworks such as React Native or Flutter, including managing platform-specific functionality and performance optimization. Ensuring a consistent user experience across iOS and Android devices can require additional testing and custom code. Additionally, keeping up with frequent framework updates and compatibility changes can be demanding. Effective collaboration with designers and backend teams is essential to address these challenges and deliver high-quality mobile applications.

What is the difference between Mobile Developer vs Web Developer?

AspectMobile DeveloperWeb Developer
Required CredentialsTypically a degree in computer science or related field; proficiency in mobile SDKs (iOS, Android)Similar degrees; expertise in HTML, CSS, JavaScript, and web frameworks
Work EnvironmentDevelops apps for iOS and Android platforms, often using IDEs like Xcode or Android StudioBuilds websites and web applications, usually working with browsers and web servers
Employer & Industry UsageTech companies, startups, app development firmsBusinesses with online presence, digital agencies, e-commerce

Mobile Developers focus on creating applications for mobile devices using platform-specific tools, while Web Developers build websites and web apps accessible via browsers. Both roles require programming skills but differ in platforms and development environments.

How much do mobile developers make?

Mobile developers typically earn a median annual salary ranging from $70,000 to $120,000, depending on experience, location, and skill set. Those proficient in both iOS and Android development or with specialized skills in Swift or Kotlin tend to earn higher salaries. Entry-level positions may start lower, while senior developers with extensive experience or certifications can earn significantly more.

Is a mobile developer a good career?

A mobile developer is a viable career choice due to the high demand for mobile applications across industries. The role typically requires skills in programming languages like Swift or Kotlin and knowledge of app development environments, with opportunities for growth and competitive salaries. The field offers a dynamic work environment and the chance to work on innovative projects.
More about Mobile Developer jobs

What are the most commonly searched types of Developer jobs in Belleville, IL?

The most popular types of Developer jobs in Belleville, IL are:

What cities near Belleville, IL are hiring for Mobile Developer jobs?

Cities near Belleville, IL with the most Mobile Developer job openings:

Mobile Developer jobs near you
Infographic showing various Mobile Developer job openings in Belleville, IL as of August 2026, with employment types broken down into 1% As Needed, 68% Full Time, 23% Part Time, 7% Contract, and 1% Nights. Highlights an 93% Physical, 1% Hybrid, and 6% Remote job distribution, with an average salary of $111,147 per year, or $53.4 per hour.

Mobile App Developer (Android & iOS)

Saint Louis, MO • On-site, Remote

The Timberline Group
See more jobs at The Timberline Groupexternal

Full-time

Re-posted 9 days ago

Job description

Job Summary:
We are looking for a skilled and experienced Mobile App Developer to design, develop, and maintain mobile applications for both Android and iOS platforms. The ideal candidate will have a strong understanding of mobile app development best practices, user interface design, and app performance optimization, with hands-on experience using cross-platform frameworks or native development environments.
Responsibilities:
  • Design and build advanced mobile applications for Android and iOS platforms.
  • Develop clean, reusable, and scalable code using either native (Java/Kotlin for Android, Swift/Objective-C for iOS) or cross-platform frameworks (Flutter, React Native, etc.).
  • Collaborate with UI/UX designers, product managers, and backend developers to implement and enhance app features.
  • Ensure the performance, quality, and responsiveness of applications.
  • Monitor and optimize app performance and ensure strong security measures.
  • Publish applications to Google Play Store and Apple App Store.
  • Provide ongoing maintenance, updates, and improvements to existing apps.
  • Stay up to date with the latest industry trends, technologies, and development tools.

Requirements:
  • Proven experience in developing mobile apps for both Android and iOS platforms.
  • Proficiency in Java/Kotlin, Swift/Objective-C, or cross-platform tools like Flutter or React Native.
  • Strong knowledge of mobile UI/UX standards, RESTful APIs, and third-party libraries.
  • Experience with app deployment and publishing on Google Play Store and Apple App Store.
  • Understanding of the mobile development lifecycle and agile development methodologies.
  • Knowledge of version control systems like Git.
  • Strong problem-solving skills and attention to detail.
  • Excellent communication and teamwork skills.

Preferred Qualifications (Optional):
  • Bachelor's degree in Computer Science, Engineering, or related field.
  • Experience with Firebase, cloud messaging, push notifications, analytics, and CI/CD tools.
  • Familiarity with native modules development and bridging in React Native or platform-specific APIs in Flutter.

The Timberline Group
Phone: 636-209-5537
PO Box 385, Lebanon, MO 65536
www.timberlinegrp.com
resumes@timberlinegrp.com
"Delivering quality solutions through quality people"

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