Senior Mobile App Engineer (iOS/Android) – Hybrid/Remote

twentysix; United Kingdom; Hybrid; GBP 55,000 - 70,000; Full time

Benefits offered by this job

Flexibility: remote and hybrid options

Career development and international机会

Learning and development resources

Job summary

Valtech is seeking a Senior Mobile App Developer with 6+ years of experience to design, build and own native iOS and Android applications. You’ll balance performance, architecture and maintainability while collaborating with clients, product and design teams in a hybrid Stockholm-based role.

You’ll work with Swift, Kotlin and modern tooling, drive technical decisions and mentor others, contributing to a cross-functional, globally distributed team. Fluency in Swedish and English is required.

Qualifications

• Must meet native iOS and Android app development requirements.
• Strong experience with Swift, Kotlin and cross‑platform collaboration.
• Fluency in Swedish and English, with client-facing communication skills.

Responsibilities

• Develop native applications for iOS and Android (no React Native).
• Lead iOS focus while maintaining solid Android understanding.
• Drive app development, technical decisions and new ideas.

Skills

Swift

SwiftUI

CocoaPods

Xcode

MVVM

TCA

Kotlin

Java

Jetpack Compose

Android Studio

Swedish

English

Tools

Git

Firebase

Crashlytics

Alamofire

GRDB

Core Data

MSAL

Auth0

TestFlight

Job description

Valtech is seeking a Senior Mobile App Developer with 6+ years of experience to design, build and own native iOS and Android applications. You’ll balance performance, architecture and maintainability while collaborating with clients, product and design teams in a hybrid Stockholm-based role.

You’ll work with Swift, Kotlin and modern tooling, drive technical decisions and mentor others, contributing to a cross-functional, globally distributed team. Fluency in Swedish and English is required.