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Mobile Developer Jobs in Romeoville, IL (NOW HIRING)

Staff Engineer, Mobile Cross-platform Are you passionate about the mobile and cross platform technologies. Are you motivated by solving problems with real-world impact. Do you want to help improve ...

Position - Mobile Device Test Engineer Location - Chicago, IL Experience - 1+ Years Primary Responsibilities/Tasks: * Execute customized test plans to verify performance of mobile devices. * Create ...

Mobile Factory Architect Location: Chicago, IL 10+ Years of relevant experience (role/technologies ... supporting DevOps driven process/integration covering parallel multiple application/releases ...

iOS Engineer -Remote

Aurora, IL · On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build new user-facing features and help drive the Poe product roadmap * Create tools and infrastructure ...

iOS Engineer -Remote

Joliet, IL · On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build new user-facing features and help drive the Poe product roadmap * Create tools and infrastructure ...

iOS Engineer -Remote

Chicago, IL · On-site

$166K - $191K/yr

Work within a small team of mobile engineers to design, build, and maintain the Poe iOS app * Build new user-facing features and help drive the Poe product roadmap * Create tools and infrastructure ...

Showing results 21-40

Mobile Developer information

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How much do mobile developer jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for mobile developer in Romeoville, IL is $56.09, according to ZipRecruiter salary data. Most workers in this role earn between $42.16 and $67.64 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.

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

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

What are popular job titles related to Mobile Developer jobs in Romeoville, IL?

For Mobile Developer jobs in Romeoville, IL, the most frequently searched job titles are:

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

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

Infographic showing various Mobile Developer job openings in Romeoville, IL as of August 2026, with employment types broken down into 1% As Needed, 69% Full Time, 19% Part Time, 9% Contract, and 2% Nights. Highlights an 90% Physical, 1% Hybrid, and 9% Remote job distribution, with an average salary of $116,674 per year, or $56.1 per hour.

Staff Engineer, Mobile Cross-platform

Bayer

Chicago, IL • On-site, Remote

$130K - $180K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 6 days ago


Bayer rating

8.3

Company rating: 8.3 out of 10

Based on 70 frontline employees who took The Breakroom Quiz

25th of 86 rated pharmaceutical


Job description

At Bayer we're visionaries, driven to solve the world's toughest challenges and striving for a world where 'Health for all Hunger for none' is no longer a dream, but a real possibility. We're doing it with energy, curiosity and sheer dedication, always learning from unique perspectives of those around us, expanding our thinking, growing our capabilities and redefining 'impossible'. There are so many reasons to join us.

If you're hungry to build a varied and meaningful career in a community of brilliant and diverse minds to make a real difference, there's only one choice. Staff Engineer, Mobile Cross-platform Are you passionate about the mobile and cross platform technologies. Are you motivated by solving problems with real-world impact.

Do you want to help improve the lives of farmers and help protect the world's food supply. We are looking for a dedicated mobile engineer to help build our next generation of products and services. Digital Farming Solutions at Bayer seeks a Staff Mobile engineer to join one of our regional dynamic Product delivery teams working in cloud based distributed environments.

You will have the opportunity to work with large, "big data" sets such as scientific data, machine generated data from our farmer's equipment to geospatial data, precision agriculture, remote sensing, weather and or soil data. We are revolutionizing the agriculture industry by helping the world's farmers sustainably increase their productivity with digital tools. If you are someone that is passionate about innovation and excited about being a key contributor to building a sustainable business, Bayer would love to talk to you.

YOUR TASKS AND RESPONSIBILITIES The primary responsibilities of this role are to: Collaborate with Engineers, Data Analysts, Product Managers, and User Experience experts to craft an experience that will impact the face of farming. Engage with your team to provide technical designs and estimates for solutions to deliver the outcomes on the roadmap. Guide the architecture of the application, working with all the engineering teams involved in the business unit.

Work with an open, inclusive team engineers who are committed to continuous improvement, and quality. Participate in code reviews and mentor junior developers. On our team we share knowledge, help each other learn new things, and thrive on making our code better.

Be a key part of defining and implementing standards and best practices for all our mobile teams. WHO YOU ARE Bayer seeks an incumbent who possesses the following: Required: 8+ years of software development experience 2+ years of experience building mobile applications with a cross-platform tool (Kotlin Multiplatform or React Native) Experience developing apps for iOS and Android platforms (Swift and Kotlin languages) Deep knowledge of architectural patterns (e.g., MVVM, MVC) Experience with releasing applications in the app stores Experience with git or other distributed version control systems Experience with testing and automation tools Good communication skills Bachelor's degree in Computer Science or related technical field, or equivalent experience Preferred: Experience with C++ Experience with integrating with GraphQL APIs Experience with leading without authority Knowledge of secure mobile development principles Experience working with Product and Design to ship ground-breaking features Champion of mobile standards, accessibility Employees can expect to be paid a salary of approximately $130k-180k. Additional compensation may include a bonus or incentive program (if relevant)

Additional benefits include health care, vision, dental, retirement, PTO, sick leave, etc.. This salary (or salary range) is merely an estimate and may vary based on an applicant's location, market data/ranges, an applicant's skills and prior relevant experience, certain degrees and certifications, and other relevant factors. This posting will be available for application until at least 6/25/26

YOUR APPLICATION Bayer offers a wide variety of competitive compensation and benefits programs. If you meet the requirements of this unique opportunity, and want to impact our mission Health for all, Hunger for none, we encourage you to apply now. Be part of something bigger.

Be you. Be Bayer. To all recruitment agencies: Bayer does not accept unsolicited third party resumes.

Bayer is an Equal Opportunity Employer/Disabled/Veterans Bayer is committed to providing access and reasonable accommodations in its application process for individuals with disabilities and encourages applicants with disabilities to request any needed accommodation(s) using the contact information below. Equal Opportunity Employer Statement: Notice for U.S. Visitors: All information on this site is subject to compliance with local rule and regulations as they may vary from time to time and across different geographies, including, without limitation, U.S

Executive Orders. Bayer is an E-Verify Employer. Location: United States : Washington : Seattle || United States : Illinois : Chicago || United States : Missouri : Creve Coeur || United States : Residence Based : Residence Based Division: Crop Science Reference Code: 859306 Contact Us Email: hrop_usa@bayer.com


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About Bayer

Sourced by ZipRecruiter

Bayer is a global enterprise with core competencies in the life science fields of healthcare and nutrition. We design our products and services to help people and planet thrive by supporting efforts to address the unprecedented global challenges presented by a growing and aging global population. At Bayer, we’re committed to drive sustainable development and generate a positive impact with our businesses. Through bold ideas and unprecedented insights, we’re pioneering new possibilities that advance life for all of us. That means reimagining how we care for ourselves and one another by empowering everyday health, improving approaches to patient care, and finding better ways to nourish our communities around the world.

Industry

Agriculture

Company size

10,000+ Employees

Headquarters location

Whippany, NJ, US