Senior Mobile App Developer (iOS/Android)

Valtech; Town of Stockholm (NY); Hybrid; USD 95,000 - 126,000; Full time

Benefits offered by this job

Hybrid work model

International mobility

Learning and development

Job summary

Valtech is seeking a Senior Mobile App Developer with 6+ years of experience to build native iOS and Android applications. The role emphasizes performance, architecture, and long-term maintainability, with responsible use of AI-powered tools to support development.

You will work in a senior, cross-functional team, collaborating with clients, product, and design colleagues to own technical decisions across platforms.

Qualifications

• Must have iOS development experience.
• Proficient with Swift, SwiftUI and UIKit.
• Strong Xcode and MVVM architecture knowledge.
• Hands-on experience with The Composable Architecture (TCA).
• Experience across iOS and Android platforms is a plus.
• Comfort using AI-powered tools to improve quality and efficiency.

Responsibilities

• Develop native applications for iOS with strong attention to performance and maintainability.
• Collaborate closely with clients, product and design teams.
• Drive technical decisions and contribute ideas for new features.
• Represent Valtech in day-to-day client collaboration.
• Work within a senior, cross-functional team.

Skills

iOS

Swift

SwiftUI

UIKit

Xcode

MVVM

TCA

Kotlin

Java

Tools

Git

Fastlane

Firebase

Crashlytics

REST/Networking

Alamofire

GRDB

Core Data

MSAL

Auth0

Google ML Kit

Adyen

Contentful

Usercentrics

TestFlight

Google Play Console

Job description

Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance to shape the future of experience.

The opportunity

At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries.

We are proud of:

• The work we do and the innovation we drive
• Our values of share, care and dare
• A workplace culture that fosters creativity, diversity and autonomy
• Our borderless, global framework, which enables seamless collaboration

The role

Valtech is looking for a Senior Mobile App Developer with 6+ years of experience, who is confident developing native mobile applications for both iOS and Android.

This role is for someone who takes mobile development seriously—not just individual platforms, but the craft of building high‑quality mobile products as a whole. You care deeply about performance, architecture and long‑term maintainability, and you have strong opinions on how mobile apps should be built, backed by hands‑on experience across platforms. You are comfortable using AI‑powered tools responsibly to support development, improve code quality, and increase efficiency across the mobile development lifecycle.

We are looking for a senior app developer who drives work proactively, collaborates closely with clients, product, and design teams, and confidently owns technical decisions across both iOS and Android.

We are first and foremost looking for a senior native app developer. In addition, we highly value T‑shaped profiles who bring depth in app development combined with strength or interest in adjacent areas.

Role responsibilities

• Development of native applications (no React Native)
• Primary focus on iOS, with solid understanding and experience in Android
• Drive app development, technical decisions, and new ideas
• Act in a proactive, advisory role towards the client
• Represent Valtech in the day-to-day collaboration
• Close collaboration within a senior, cross-functional team

Must have qualifications

To be considered for this role, you must meet the following essential qualifications:

• iOS
• Swift
• SwiftUI, UIKit
• Xcode
• MVVM
• The Composable Architecture (TCA)
• Kotlin, Java
• Jetpack Compose

Language:

• Fluent in Swedish and English

Nice to have qualifications

• Git
• Fastlane
• Firebase & Crashlytics
• REST / Networking (e.g. Alamofire)
• Database management (GRDB, Core Data)
• Authentication & security (MSAL, Auth0)
• Third-party integrations (Google ML Kit, Adyen, Contentful, Usercentrics)
• Unit testing & UI testing
• Publishing and management via App Store Connect & Google Play Console
• Beta testing (TestFlight, Apple Business Manager, Google Play Testing Tracks)
• You have a solid understanding of UX/UI design for mobile apps and can work according to each platform’s design principles when developing new features:

If you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn.

Commitment to reaching all kinds of people

We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. Explore our Diversity & Inclusion site to see how we’re creating a more equitable Valtech for all.

The benefits

This is a full time position based in Stockholm, Sweden, with hybrid working model (at least 2-3 days work from our Stockholm office).

Beyond a competitive compensation package, we offer:

• Flexibility, with remote and hybrid work options (country-dependent)
• Career advancement, with international mobility and professional development programs
• Learning and development, with access to cutting-edge tools, training and industry experts

Our benefits are tailored to each location. Your Talent Partner will provide full details during the hiring process.

We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know.

About Valtech

Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world.

At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more.

At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate.