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About Welvaart
On a daily basis, we assume commitments and present solutions to our stakeholders in order to create a structure of human values, based on professionalism, honesty and rigor.
With a management based on Human Centered Design, we take care of our professionals with consistent career plans, but flexible with their needs and expectations of evolution. Our management team guarantees an empathetic and present leadership that will provide superior technological engagement and delivery to our clients' projects and products.
Role
On a daily basis, we assume commitments and present solutions to our stakeholders in order to create a structure of human values, based on professionalism, honesty and rigor.
With a management based on Human Centered Design, we take care of our professionals with consistent career plans, but flexible with their needs and expectations of evolution. Our management team guarantees an empathetic and present leadership that will provide superior technological engagement and delivery to our clients' projects and products.
Role
- Develop and maintain mobile apps for iOS and Android using Swift and Kotlin.
- Implement MVVM, MVI, and Clean Architecture patterns.
- Integrate REST APIs and manage data persistence using Room, DataStore, and SharedPreferences.
- Ensure app security and performance optimization.
- Write unit tests and maintain code quality.
- Collaborate with cross-functional teams for UI/UX consistency.
- Experience with Swift, Kotlin, and basic Java, using Xcode, Android Studio, Git, and Gradle for native mobile development.
- Ability to build user interfaces with UIKit, Jetpack Compose, and XML, following Material Design guidelines.
- Strong understanding and application of modern architectures such as MVVM, MVVM-C, MVI, and Clean Architecture.
- Proficiency in reactive and asynchronous programming with RxSwift, Combine, Coroutines/Flow, and RxJava/RxKotlin.
- Integration with REST APIs using Retrofit and OkHttp, and implementation of dependency injection with Dagger/Hilt.
- Data persistence experience using Room, DataStore, and SharedPreferences, including encrypted variants.
- Quality-focused development with unit testing using XCTest (and Android equivalents).
- Monitoring, analytics, and build distribution using Firebase Analytics, Crashlytics, and Firebase App Distribution.
- Be part of a tech start-up
- Different scopes of project in different sectors
- Structure of fairness and equity salary (Consultant Profile)
- Training & Certification
- Career Path management
- More than 30 Partnerships
- Welvaart Ambassador Program
Key Skills
Ranked by relevance
android
firebase
swift
rxswift
kotlin
gradle
xcode
java
git
xml
ios
c
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- Posted
- Jan 06, 2026
- Type
- Full-time
- Level
- Entry
- Location
- Lisbon
- Company
- Welvaart
Industries
IT Services
IT Consulting
Categories
Engineering
Information Technology
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3 roles aligned with this opportunity
View Job Details
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Android Developer
2026-03-16
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View Job Details
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IOS Developer
2026-04-12
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View Job Details
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FullStack & Mobile Developer
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