Senior Mobile Engineer ( React Native)

Zartis; España; A distancia; EUR 30.000 - 50.000; Jornada completa

Descripción de la vacante

A digital solutions provider is seeking a Senior Mobile Engineer to join their team. This role involves developing scalable mobile components with React Native and optimizing performance for mobile applications. Ideal candidates will have proven experience in building mobile applications, a strong understanding of React Native, and a commitment to code quality and user experience. The position is 100% remote, offering various growth and training opportunities.

Servicios

100% Remote Work

WFH allowance

Career Growth opportunities

Tech training options

Mentoring Program

Wellbeing Hub access

Multicultural working environment

Formación

• Proven experience building production-ready applications in React Native.
• Care deeply about user experience, code quality, and performance.
• Solid experience with React Native and modern JavaScript (ES6+).
• Experience managing mobile app state using Redux and Context API.
• Familiarity with integrating RESTful APIs and handling asynchronous data flows.
• Understanding of mobile platform-specific behaviors and performance optimizations.
• Ability to write clean, reusable, and well-documented code.
• Experience with version control tools like Git.
• Exposure to writing or maintaining native modules is a plus.
• Strong communication skills and a collaborative mindset.

Responsabilidades

• Develop and maintain scalable, reusable mobile components using React Native.
• Translate UI/UX designs into responsive, native-feeling mobile interfaces.
• Manage application state using tools like Redux or Context API.
• Integrate mobile apps with backend APIs and handle data synchronization.
• Optimize mobile performance, responsiveness, and app launch times.
• Participate in code reviews, testing and debugging.
• Contribute to the development of SDKs for internal or external use.
• Create or modify native modules when deeper integration is required.

Descripción del empleo

Overview

The company and our mission: Zartis is a digital solutions provider working across technology strategy, software engineering and product development. We partner with firms across financial services, MedTech, media, logistics technology, renewable energy, EdTech, e-commerce, and more. Our engineering hubs in EMEA and LATAM are full of talented professionals delivering business success and digital improvement across application development, software architecture, CI/CD, business intelligence, QA automation, and new technology integrations. We are looking for a Senior Mobile Engineer to work on a project in the fintech industry.

What you will do

• Develop and maintain scalable, reusable mobile components using React Native.
• Translate UI/UX designs into responsive, native-feeling mobile interfaces.
• Manage application state using tools like Redux or Context API.
• Integrate mobile apps with backend APIs and handle data synchronization.
• Optimize mobile performance, responsiveness, and app launch times. Write clean, maintainable, and well-documented code following best practices.
• Participate in code reviews, testing and debugging.
• Contribute to the development of SDKs for internal or external use.
• Create or modify native modules when deeper integration with iOS/Android platforms is required.

What you will bring

• You’re a mobile developer with proven experience building production-ready applications in React Native.
• You care deeply about user experience, code quality, and performance, and you’re comfortable working across the stack when needed.
• Solid experience with React Native and modern JavaScript (ES6+), with a strong understanding of component-based architecture and hooks. Experience managing mobile app state using Redux and Context API.
• Familiarity with integrating RESTful APIs and handling asynchronous data flows
• Understanding of mobile platform-specific behaviours, performance optimizations, and best practices for both Android and iOS.
• Ability to write clean, reusable, and well-documented code.
• Experience with version control tools like Git and agile development workflows.
• Exposure to writing or maintaining native modules (Java/Kotlin for Android, Swift/Objective-C for iOS) is a plus.
• Familiarity with building and maintaining SDKs or shared libraries.
• Strong communication skills and a collaborative mindset, with a focus on continuous learning and team contribution.

What we offer

• 100%Remote Work
• WFH allowance: Monthly payment as financial support for remote working.
• Career Growth: We have established a career development program accessible for all employees with a 360º feedback that will help us to guide you in your career progression.
• Training: For Tech training at Zartis, you have time allocated during the week at your disposal. You can request from a variety of options, such as online courses (from Pluralsight and Educative.io), English classes, books, conferences, and events.
• Mentoring Program: You can become a mentor in Zartis or you can receive mentorship, or both.
• Zartis Wellbeing Hub (Kara Connect): A platform that provides sessions with a range of specialists, including mental health professionals, nutritionists, physiotherapists, fitness coaches, and webinars with such professionals as well.
• Multicultural working environment: We organize tech events, webinars, parties, and activities to do online team-building games and contests.