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Mobile App Developer Jobs in St Louis, MO (NOW HIRING)

Atria Group LLC

Android Mobile Developer

O Fallon, MO · On-site

$52.25 - $68.50/hr

Our company provides application analysis, design, development and programming, software ... Develop Android Java code mobile app and SDK deliverables based upon documented requirements and ...

The Timberline Group

C# / Angular Developer

Saint Peters, MO · On-site

$52.25 - $64/hr

Reporting to the Web App Development Manager, this position is responsible for: * Consolidating ... Intermediate to expert knowledge of creating mobile apps (nice to have) * Strong knowledge of UI ...

Sparks Group

Project Manager

O Fallon, MO · On-site

... Engineering, etc.) 1-2 Years of experience in Project Management activities & Tools (Project ... Download the Sparks Group mobile app from Apple App Store or Google Play . ----- Sparks Group is an ...

Bayer

Staff Engineer, Mobile Cross-platform

Saint Louis, MO · On-site +1

$130K - $180K/yr

Staff Engineer, Mobile Cross-platform Are you passionate about the mobile and cross platform ... Experience with releasing applications in the app stores * Experience with git or other distributed ...

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$52K

$107.4K

$153.6K

How much do mobile app developer jobs pay per year?

As of May 28, 2026, the average yearly pay for mobile app developer in St Louis, MO is $107,414.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,200.00 and $124,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Mobile App Developer, and why are they important?

To thrive as a Mobile App Developer, you need strong programming skills in languages such as Java, Kotlin, Swift, or Flutter, supported by a relevant degree or equivalent experience. Familiarity with development environments like Android Studio or Xcode, along with knowledge of APIs and app deployment processes, is typically required. Creativity, problem-solving, and effective communication help developers interpret user needs and collaborate with designers or stakeholders. These competencies ensure the creation of high-quality, user-friendly apps that meet business objectives and industry standards.

What are some common challenges Mobile App Developers face when working on cross-platform applications?

Mobile App Developers often encounter challenges when developing cross-platform applications, such as ensuring consistent user experiences across different devices and operating systems. Managing varying hardware capabilities, screen sizes, and OS-specific behaviors can require extra testing and fine-tuning. Additionally, integrating with native features or third-party services may demand creative problem-solving to maintain performance and functionality. Collaboration with designers and QA teams is essential to address these challenges and deliver high-quality apps.

What are mobile app developers?

Mobile app developers are professionals who design, build, and maintain applications for mobile devices such as smartphones and tablets. They use programming languages like Java, Swift, or Kotlin to create apps for platforms such as iOS and Android. These developers work closely with designers and other team members to ensure the app is user-friendly, functional, and meets client or business requirements. Their responsibilities also include testing and updating apps to fix bugs and add new features.
What cities near St Louis, MO are hiring for Mobile App Developer jobs? Cities near St Louis, MO with the most Mobile App Developer job openings:
Mobile App Developer jobs near you

Mobile App Developer (Android & iOS)

The Timberline Group

Saint Louis, MO • On-site

Other

Posted 5 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.

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