Hire A Mobile Developer

Each of our engineers have the expertise and knowledge to build mobile apps that will meet and exceed your business needs.


Build reliable, scalable, and feature-rich iOS solutions


Android apps with great performance, next level security, and intuitive UX design


Ensure best possible cross-platform performance and user experience

Our mobile development services

Native app development

Our experienced mobile development team can develop high-quality native iOS and Android apps that captivate users. We ensure your mobile apps are developed following modern best practices and technologies.

Hybrid App development

Hire offshore mobile developers to guarantee the success of your hybrid app development needs. Our mobile developers are experienced in building and migrating from hybrid mobile apps, using modern technologies such as Flutter.

Quality Assurance

From functional to user testing, our mobile experts are well versed in QA practices, and deliver apps that are guaranteed to stay compatible, testable, and scalable.


Our mobile engineers are well-versed in developing applications that are high-performant. We focus on delivering apps that are not only fast and reliable, but also sustainable. We work with green software engineering priciples, to deliver the best user experience at the lowest impact.


Our mobile developers have extensive experience working in migration projects. Whether it be migrating to new programming languages within native apps, or migrating from cross-platform apps to native solutions, or vice-versa, we got you covered.


Stay competitive with the latest technologies. We have helped many companies adopt modern languages and modernise their systems with the latest mobile stacks. We have experience managing modernisation projects between Objective-C and iOS, as well as Java and Kotlin.

Our mobile development expertise

Hiring outsourced iOS developers allows you to quickly hire skilled and experienced developers who can take your vision from concept to reality. Whether you need help with app design, development, testing, or maintenance using Swift and Objective-C, we can tailor our services to meet your specific requirements.

  • iPhone app development

  • iPad development

  • Language and version updates

  • Migrations across different platforms

We have senior developers specializing in Android mobile development, who can cover a wide range of needs, from app design, development, testing, and maintenance. Build native Android apps using Java and Kotlin, utilising Android SDK and Toolkit.

  • Android app development

  • Tablet development

  • Functionality and operating system updates

  • Migrations across different platforms

With the help of our hybrid mobile developers, you can create a single codebase that can be used across multiple platforms, saving you time and money on development costs. Offer your customers apps optimized for all mobile platforms, including iOS, Android, and Windows. 

  • Hybrid mobile app development

  • Responsive design

  • Migrations to and from native apps

  • Various coding languages and tech stacks

“We work with multiple SMEs from Zartis. They all consistently help us identify issues and define suitable solutions. We highly recommend their consulting services.”

Padraig Howlin

Director of Engineering | Vromo

“Zartis has been a valuable partner to us. The Zartis developers have continuously shown strong engineering skills as well as expertise in architecture and best practices.”

Petrina Leslie

Head of Development | ESW

“We experienced a period of rapid growth and needed to scale up our teams quickly. The engineers and Zartis in general are professional, reliable and a pleasure to work with.”

Ben White

Head of Engineering | Kaluza

How our mobile developers stand out from the rest

successful software team member

Top engineers. Successful outcomes.

All of our mobile developers go through a rigorous recruitment process to make sure we hire only the highest-quality talent. 

cost saving in software development

Achieve goals quickly & cost-effectively.

Hire mobile developers at a very reasonable cost. You will be surprised by what you can achieve while saving resources.

scaling software development team

Minimize risk. Maximize resources.

Scale up or down easily as your needs change. Hire individual developers or an entire mobile development team for short or long-term projects. 

male software developer working on a laptop

Less admin. More software development.

From hiring and security setup to local payroll and support, we take care of everything, so you can focus on what matters — building great applications.

Hire iOS Android hybrid app developers

We provide both individual mobile developers and fully scalable, multi-functional dedicated mobile development teams to clients across the US, UK, and Europe. 

Why partner with us


Security is high up the priority list for us. We’re ISO 27001 certified.


We hire dedicated mobile developers who are on top of their engineering game.​


We have extensive experience across various mobile technologies.


Our engineers and tech leads work around a growth mindset 24/7.

Client testimnials

Don’t just take our word for it

High-quality, high-performing mobile apps

hire team of developers

FAQs: Hiring mobile developers with Zartis

Tell us what you need and we will put together a team for you. We run our own recruitment process, and you only talk to the selected few engineers we recommend for your dedicated team, with a full right to veto. We take care of all operational aspects of the collaboration including hardware, IT support, ensuring we are fully compliant with local regulations etc. You save time on recruitment and operational challenges, while keeping control over who works on your code.

We have deep expertise across most common native and hybrid mobile app development technologies, including, but not limited to iOS, Swift, Objective-C, Android, Java, Kotlin, Flutter and deep expertise in cloud technologies, including AWS and Azure.

Our engineers are based across EMEA and LATAM. While we have offices in Ireland, Spain, Poland and Germany, we are a remote-first company and most of the Zartis engineers are working remotely from European and North American time zones.

On average, it takes 4-6 weeks to set up a new team. This can vary somewhat, depending on the location where we are setting up the team and the size of the team.

Check out some of our case studies:

Start building outstanding mobile apps.

Schedule a free call, and let's figure out how to help you find the most fitting mobile developers.