This job advert was originally written in Spanish.

Requirements

What we're looking for

What are we looking for?

Beyond technical knowledge, we are looking for professionals who stand out for:
Passion for creating excellent user experiences.
Attention to detail and quality orientation.
Proactivity and the ability to take ownership.
Good communication and collaboration skills.
Ability to work with multidisciplinary teams.
Initiative to provide ideas and technical solutions.
Adaptation to Agile/Scrum environments.
Ability to take a functionality from its definition to production.

Android Specialty

3+ years of experience in professional native Android application development.
Proficiency in Kotlin. Java will be valued.
Experience with Jetpack Compose and/or Views/XML.
Solid knowledge of MVVM, MVP, or other modern architectures.
Experience with Jetpack:
ViewModel.
LiveData.
Room.
Navigation.
WorkManager.
Experience with REST APIs, JSON, and asynchronous programming.
Knowledge of Coroutines and Flow.
Experience with Android Studio and Android SDK.
Knowledge of the Google Play ecosystem and the publishing process.
Knowledge of lifecycle, memory management, and performance optimization.
Experience with Git and version control workflows.

iOS Specialty

3+ years of experience in professional iOS application development.
Proficiency in Swift. Objective-C will be valued.
Experience with UIKit and/or SwiftUI.
Knowledge of MVC, MVVM, or other architectures.
Experience with REST APIs, JSON, and asynchronous programming.
Knowledge of async/await and/or Combine.
Experience with Xcode, Instruments, and the Apple ecosystem.
Knowledge of the App Store publishing process and its guidelines.
Knowledge of memory management and performance optimization in iOS.
Experience with Git and version control workflows.

Nice to have

CI/CD: Fastlane, GitHub Actions, Bitrise, or Firebase App Distribution.
Push notifications / Firebase Cloud Messaging (FCM).
Deep linking and In-App Purchases / Billing Library.
Accessibility: TalkBack and content descriptions.
Testing: JUnit, Espresso, MockK.
Dependency Injection: Hilt / Dagger.
Retrofit, OkHttp, or other networking libraries.
Applications published on Google Play.
CI/CD: Fastlane, GitHub Actions, or Bitrise.
Push notifications.
Deep linking and In-App Purchases.
Accessibility: VoiceOver and Dynamic Type.
Unit and UI testing: XCTest.
Applications published on the App Store.
Contributions to Open Source projects.

Pay & benefits

What you'll get

What do we offer?

Joining high-impact technological projects.
Working with cutting-edge Android and/or iOS technologies.
Collaborative and multidisciplinary environment.
Participation in the entire product development cycle.
Professional development and growth within Grupo NS.

The role

At Grupo NS we are looking to hire Mobile Developers with experience in native development Android and/or iOS to participate in high-impact mobile application development projects.

We are looking for professionals passionate about technology and user experience, with the ability to work from end to end in the development of functionalities, collaborating closely with Product, UX/UI, Backend, and other technical teams.

You will be able to specialize in Android, iOS, or contribute experience in both platforms.

What will your mission be?

Design, develop, and evolve robust, scalable, and high-performance mobile applications, applying best practices in development, architecture, testing, and optimization.
You will actively participate in the technical definition of functionalities and will have ownership over them from conception to production.

What you'll do

Main functions

Design, develop, and maintain high-quality native mobile applications.
Create clean, maintainable, documented, and testable code.
Collaborate with Product, UX/UI, and Backend teams.
Transform designs and wireframes into fluid and polished interfaces.
Integrate REST APIs, third-party services, and SDKs.
Analyze and optimize performance, memory consumption, and user experience.
Perform debugging, profiling, and incident resolution.
Participate in code reviews and contribute to improving the team's technical standards.
Stay up to date on the latest technologies, frameworks, and guidelines of each ecosystem.
Participate in the definition and refinement of requirements from a technical perspective.
Resolve bugs and production incidents.
Work under Agile/Scrum methodologies.

Are you interested?

If you are an Android Developer, iOS Developer, or Mobile Developer and want to participate in projects where technical quality and user experience are protagonists, we want to meet you!

About Grupo NS

Grupo NS is a Spanish IT services and consulting company founded in Madrid in 2003, offering outsourcing, technology consulting, custom project development, and tailored training programs. Its service lines span cloud, cybersecurity, data, AI, Salesforce, databases, infrastructure, networks, QA and systems, and it states that it collaborates with 12 of the 15 large international IT solutions integrators. The company has grown past €5M in revenue and counts more than 150 people on its team.

For professionals in Spain, Grupo NS is strongly remote-friendly: 98% of its workforce teleworks and the company lets employees choose the work model where they are most productive. It offers free training from day one, flexible compensation, and holds ISO 9001 and ISO 27001 quality and security certifications. Hiring is active across Madrid and Barcelona (its two offices, with Barcelona opened in 2005 as NSCAT) as well as other Spanish locations such as Alicante, Granada, Sevilla, Almería and Tres Cantos, and the company says its international projects help it attract ambitious talent.

Industry: IT Services
Founded: 2003
Employees: 150+
In Spain: Madrid, Barcelona
Website: https://jobeax.com/link/7QkcwkekOP1bOpFJ

Good to know if you are moving

98% of the workforce teleworks, and employees can choose the work model where they are most productive (remote, hybrid or on-site).
Free training is offered from day one, with development plans and reskilling programs.
Flexible compensation lets employees personalize benefits to fit their lifestyle and well-being.
The company says its international projects help it attract talent with global ambitions.
Open roles are based in Madrid and Barcelona (hybrid or fully remote) as well as other Spanish locations such as Alicante, Granada, Sevilla and Almería.

All open roles at Grupo NS

Mobile Developer Android & iOS

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