Mobile Developer

Employee
Hybrid
Medior, Senior

Last updated: 6 May 2026

Do you have a passion for developing mobile apps in React Native? Do you thrive on working on different projects and tackling challenging situations? Are you willing to set the bar just a little higher?
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What will you do as a Mobile developer at ACA Group?

  • You develop mobile applications using technologies such as iOS, Android, React Native, Kotlin, Bitrise and Firebase
  • You build high-performing, secure and maintainable solutions with a strong focus on code quality and UX/UI
  • You work on integrations with other systems and consider architecture, DevOps and cloud
  • You collaborate with your team partly on-site in Hasselt and occasionally interact with clients

Which skills do you need?

  • You have experience as a mobile developer
  • You stay up to date with mobile trends and continuously improve your technical skills
  • You have an analytical and critical mindset and take ownership of your work
  • You communicate clearly and enjoy working in a team

Why join ACA Group?

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Competitive & flexible package

A strong salary package with car, cafeteria plan, insurance, mobility budget, bonus & more.

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People-first culture

A warm, supportive environment where collaboration, trust and openness come first.

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Growth opportunities

Continuous learning, coaching and the freedom to shape your own career path.

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The (unique) ACA company culture 💙

Step inside ACA and discover what it’s like to work with a group of passionate IT professionals who are always ready to collaborate, innovate and deliver exceptional results. If you’re looking to join a team that’s passionate about both technology and making customers happy, take a look at what makes ACA Group an awesome place to work.

The (unique) ACA company culture 💙

Step inside ACA and discover what it’s like to work with a group of passionate IT professionals who are always ready to collaborate, innovate and deliver exceptional results. If you’re looking to join a team that’s passionate about both technology and making customers happy, take a look at what makes ACA Group an awesome place to work.

The (unique) ACA company culture 💙

Step inside ACA and discover what it’s like to work with a group of passionate IT professionals who are always ready to collaborate, innovate and deliver exceptional results. If you’re looking to join a team that’s passionate about both technology and making customers happy, take a look at what makes ACA Group an awesome place to work.

The (unique) ACA company culture 💙

Step inside ACA and discover what it’s like to work with a group of passionate IT professionals who are always ready to collaborate, innovate and deliver exceptional results. If you’re looking to join a team that’s passionate about both technology and making customers happy, take a look at what makes ACA Group an awesome place to work.

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Join our team!

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Does this job not quite fit? No worries!

If you are passionate about what we do and think you could be a great addition to our team, we'd love to hear from you! We are always looking for talented people who are eager to contribute, collaborate and grow. So even if there’s no role that matches right now, don’t hesitate to get in touch.

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Customer cases

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With more than 100 happy customers, we help organizations work faster, better and more efficiently.
Curious about what we’ve achieved? Take a look our projects and see the impact we have made for our clients! 

Attentia, a provider in the HR and wellbeing services sector, needed to improve its customer journey and online presence but faced challenges with fragmented digital platforms. ACA Group developed a unified, future-proof website by consolidating multiple systems into one platform. This integrated web solution enhances the #OneAttentia experience, enabling customers to easily access services while improving operational efficiency, brand consistency, and digital engagement.

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hands laptop
attentia logo

Aqtor!, a provider of orthopedic and mobility aids in the healthcare sector, faced inefficiencies in appointment management that impacted operational productivity and patient experience. ACA Group implemented Planit, a digital planning and scheduling system, to streamline appointment workflows and optimize resource allocation. This solution reduces administrative workload, improves care quality, and increases customer satisfaction by enabling faster, more efficient patient service.

Aqtor case hospital
Aqtor case hospital
aqtor

VDAB, a public employment service in the government sector, needed to ensure continuity of its district work voucher system after its external provider discontinued the service. ACA Group developed a secure digital platform to manage and distribute electronic district work vouchers, ensuring compliance and operational reliability. This solution enables uninterrupted service delivery, supports local community work initiatives, and improves efficiency in voucher management and administration.

government building
government building
vdab logo

MuseumPASSmusées, operating in the cultural and tourism sector, aimed to improve access to museums but relied on a physical pass that limited efficiency and user insights. A digital mobile app was introduced in 2022 to provide access to over 240 Belgian museums and capture user data. This digital solution increased accessibility, reduced helpdesk inquiries, enabled data-driven insights, and strengthened customer engagement and loyalty, with more than 130,000 downloads.

Painting frame museum
Painting frame museum
publiq logo

The Flemish Department of Culture, Youth and Media (CJM), a public sector organization, aims to connect cultural institutions with citizens using historical data and personal interests but faced challenges in data sharing across organizations. ACA Group is implementing a data platform based on a data mesh architecture to enable decentralized data sharing and governance. This solution supports data integration, enables data-driven services, and helps launch personalized cultural experiences for the Flemish public.

museumpas cover photo
museumpas cover photo
1695734610-dep-cjm-logo

Waste Vision, a provider of smart IoT solutions in the waste management sector, needed to optimize waste collection processes but faced inefficient routing and operational complexity. ACA Group developed a mobile navigation app that uses data-driven route optimization to streamline collection workflows. This solution reduces errors, improves efficiency, and supports sustainable urban waste management by enabling more effective and predictable collection operations.

1634184649-foto-ev
1634184649-foto-ev
1719576839-waste-vision-logo-transparant

Attentia, a provider in the HR and wellbeing services sector, needed to improve its customer journey and online presence but faced challenges with fragmented digital platforms. ACA Group developed a unified, future-proof website by consolidating multiple systems into one platform. This integrated web solution enhances the #OneAttentia experience, enabling customers to easily access services while improving operational efficiency, brand consistency, and digital engagement.

hands laptop
hands laptop
attentia logo

Aqtor!, a provider of orthopedic and mobility aids in the healthcare sector, faced inefficiencies in appointment management that impacted operational productivity and patient experience. ACA Group implemented Planit, a digital planning and scheduling system, to streamline appointment workflows and optimize resource allocation. This solution reduces administrative workload, improves care quality, and increases customer satisfaction by enabling faster, more efficient patient service.

Aqtor case hospital
Aqtor case hospital
aqtor

VDAB, a public employment service in the government sector, needed to ensure continuity of its district work voucher system after its external provider discontinued the service. ACA Group developed a secure digital platform to manage and distribute electronic district work vouchers, ensuring compliance and operational reliability. This solution enables uninterrupted service delivery, supports local community work initiatives, and improves efficiency in voucher management and administration.

government building
government building
vdab logo

MuseumPASSmusées, operating in the cultural and tourism sector, aimed to improve access to museums but relied on a physical pass that limited efficiency and user insights. A digital mobile app was introduced in 2022 to provide access to over 240 Belgian museums and capture user data. This digital solution increased accessibility, reduced helpdesk inquiries, enabled data-driven insights, and strengthened customer engagement and loyalty, with more than 130,000 downloads.

Painting frame museum
Painting frame museum
publiq logo

The Flemish Department of Culture, Youth and Media (CJM), a public sector organization, aims to connect cultural institutions with citizens using historical data and personal interests but faced challenges in data sharing across organizations. ACA Group is implementing a data platform based on a data mesh architecture to enable decentralized data sharing and governance. This solution supports data integration, enables data-driven services, and helps launch personalized cultural experiences for the Flemish public.

museumpas cover photo
museumpas cover photo
1695734610-dep-cjm-logo

Waste Vision, a provider of smart IoT solutions in the waste management sector, needed to optimize waste collection processes but faced inefficient routing and operational complexity. ACA Group developed a mobile navigation app that uses data-driven route optimization to streamline collection workflows. This solution reduces errors, improves efficiency, and supports sustainable urban waste management by enabling more effective and predictable collection operations.

1634184649-foto-ev
1634184649-foto-ev
1719576839-waste-vision-logo-transparant
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