
Valtech · Stockholm
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 v...
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.
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.
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
To be considered for this role, you must meet the following essential qualifications:
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.
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.
This is a full time position based in Stockholm, Sweden, with hybrid working model (at least 2-3 days work from our Stockholm
office).
Our benefits are tailored to each location. Your Talent Partner will provide full details during the hiring process.
Once you apply, our Talent Acquisition team will review your application. Your CV should cover key information on relevant
experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application.
We review all candidates based on skills, experience, and potential.
⚠️ Beware of recruitment fraud!
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.
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.
Are you ready to create what’s next? Join us!
10% of Europe’s CO₂ emissions are caused by residential heating and energy bills are out of control. Aira is here to change that. With our intelligent Aira Heat Pump at the heart, we’re making the switch to clean energy-tech easier and more affordable. Helping Europe turn off gas and slashing energy costs one home at a time. Founded in 2022, and with 1200+ employees and counting, Aira is driving the clean energy revolution by providing homes with modern clean energy-tech solutions such as solar power, battery storage solutions and heat pumps. With a state-of-the-art production facility in Poland, and HQ in Stockholm, Sweden, and hubs across the UK, Germany and Italy, Aira is well on track to install clean energy-tech into 5 million homes by 2034. About the role As a Senior Flutter Developer in the Engagement Team, you will build the tools that enable our field teams to deliver smooth installations and exceptional service. You'll be part of one of our cross-functional teams working primarily with the mobile application that installers and service technicians use. In practice, this means building tools for commissioning and servicing the full range of Aira's clean energy systems — heat pumps, solar panels, batteries, and inverters, as well as managing software updates and helping technicians troubleshoot in the field. As a Senior Flutter developer, you will: Own and ship features across iOS and Android from a single Flutter codebase Partner with UX design to craft interfaces built for real field conditions, used by technicians on-site, often under time pressure Work tightly with the in-field teams to optimize the commissioning experience. Build reliable device integrations over Bluetooth, Wi-Fi, and Thread - connecting technicians directly to the hardware they're installing and servicing Make pragmatic decisions about when to prioritize speed and when to focus on long-term scalability Contribute to architectural decisions that support our rapid growth and international expansion What you bring to the team: Solid experience with product-driven software development and agile environments 5+ years of mobile development experience Flutter experience preferred, React Native considered. Experience building and consuming REST APIs and integrating third-party SDKs Familiarity with state management patterns such as Bloc or Riverpod, and an appreciation for testable code Comfort working with structured data contracts and binary protocols — we use Protobuf for communication between the app and our edge devices We would also appreciate if you have experience with or knowledge of some of the following: Hands-on experience with device communication protocols such as Bluetooth LE, Wi-Fi, or Thread Familiarity with embedded Linux environments or edge computing. The devices our app talks to run a Rust application on Linux hardware Experience with event-driven architectures or message brokers such as Kafka A track record of thriving in rapid-growth environments (start-ups, scale-ups, or new projects). What is in it for you? Develop and grow in a fast-growing scale-up with a supportive and inclusive culture. Contribute to something measurable. Every smooth commissioning enables a more environmentally sustainable Europe. See your work in action in the real world. The app you build is used by technicians installing clean energy systems in people's homes across Europe every day. Collaborate with colleagues across the full value chain, from R&D in Sweden and manufacturing in Poland to installation teams on the ground in the UK, Germany, and Italy. Enjoy the flexibility of our hybrid work model, with our office centrally located in Stockholm near Sankt Eriksplan and Odenplan. We interview on a rolling basis throughout the summer, with the majority of interviews taking place in August. At Aira, we champion next-generation energy as well as diversity and inclusion. We firmly believe that a diverse workforce fosters innovation and creativity, enhancing our ability to serve customers and communities effectively. We welcome individuals from all backgrounds, cultures and perspectives to join our team. Our commitment is to uphold equality and inclusivity, fostering a collaborative environment where everyone can thrive and contribute to a better future for our people and the planet.
What will you do? As a Senior iOS Engineer at Rebtel, you will be part of our Frontend team, helping modernize and evolve the Rebtel iOS app. The iOS team is two engineers, and you'd be the third. We're moving off legacy Objective-C toward a modern Swift, SwiftUI, and Combine stack, and shifting the architecture from VIPER to MVVM-C, all while continuously shipping product features to a global user base. You'll work in a small, empowered team where your technical decisions matter. This role is a mix of building new features, refactoring legacy code, collaborating cross-functionally, and shaping the future of our iOS platform. Areas of ownership: Drive the modernization from legacy Objective-C to a modern Swift + SwiftUI stack Refactor code that slows us down and proactively pay down tech debt Build and modernize iOS features using Swift, SwiftUI, and Combine Contribute to architecture decisions (VIPER to MVVM-C transition, Combine, platform improvements) Collaborate closely with Android, Web, Product, Design to ship the right solutions Ship to the App Store and monitor what happens after release Improve tooling, testing practices, and CI/CD where needed Maintain and improve the overall health of the iOS platform Requirements: 5+ years building iOS apps Proficient in Swift, SwiftUI, and Combine Comfortable maintaining and modernizing legacy Objective-C Solid grasp of iOS architecture patterns (MVVM-C, VIPER) Shipped production iOS apps to the App Store, including post-release monitoring Experience with REST and/or GraphQL, with solid error handling and async patterns Can work independently and ship without constant oversight Write unit tests, cover edge cases, and give code reviews that favor simple solutions Work effectively with AI coding tools Good English (we write and speak it all day) Nice to have: Worked on large, mature products Mobile CI/CD, testing, and DevOps experience Audio or telecommunications experience Why Rebtel? Rebtel has been connecting people across borders for nearly 20 years. Today, we're profitable, growing, and at a pivotal moment in our journey. We make it cheap and easy for migrants to call and send money home. Millions of people move countries every year, and staying connected with family shouldn't cost a fortune. That's the problem we work on, from a small, international team based in Stockholm where speed and ownership matter more than process. Benefits Pension Plan Health Checkups, Influenza shots, and Private Medical Insurance Dental Insurance Occupational insurance Wellness allowance (5,000 SEK) Discount on gym memberships Bonus program Extra parental pay 30 days annual vacation Monday breakfasts Relocation Support Equal Opportunity We are Rebtel. We come from all around the world to create products for anyone who has crossed a border. We believe in equal opportunity and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
Why Doktor.se Doktor.se is Sweden's largest digital healthcare provider. We combine physical clinics with a digital platform serving millions of consultations per year — backed by a profitable, international organization with 1,000+ employees and over 1B SEK in revenue. Our 25-person engineering team operates with startup autonomy inside enterprise stability. We're actively integrating LLMs (OpenAI, Anthropic) into patient and clinician experiences — and the mobile apps are where patients interact with all of it. The role You'll join a small, high-ownership mobile team: you, our iOS lead, and two Android engineers working closely together across platforms. This isn't a maintenance role. We're actively modernizing our iOS architecture, improving test coverage, and making real decisions about how we structure things going forward. You'll be shaping how we build iOS at Doktor.se — not just writing features to spec. What you'll work on Help settle on a clean, sustainable architecture — we're evaluating approaches now — and drive the migration. Build new features end-to-end in collaboration with product managers and designers. Improve testing practices and ideally bring TDD into the team's workflow. Bring AI capabilities into the patient experience — we're expanding what we do on the platform into the mobile apps. Own the release process and deployment pipeline. Work with our Android team to ensure a coherent experience across platforms. Shape how we build iOS — not just execute tickets. What we're looking for 5+ years of professional iOS development. Solid understanding of architecture patterns — and opinions about what works in practice, not just in theory. Experience across both modern and legacy UI frameworks. Our codebase uses both, and you should be comfortable navigating that. Experience writing tests and ideally bringing TDD practices into a team. Comfortable integrating with backend services. Experience with modular codebases or breaking monoliths into modules. Experience improving and refactoring production codebases — not just greenfield projects. University degree in computer science, engineering, or equivalent experience. Who you are You see tech debt as an opportunity, not a chore. You enjoy the work of making things better. You're senior enough to drive work independently, suggest improvements, and push back when needed — but you're not looking to be the lead. You want to build, not manage. You care about craft: clean code, good tests, thoughtful architecture. But you're also pragmatic about shipping. Tech stack Language - Swift UI SwiftUI, UIKit Architecture - MVVM, Combine, Clean Architecture (evolving) Testing - XCTest, UI testing CI/CD - GitHub Actions, App Store Connect Backend integration - REST APIs AI - OpenAI, Anthropic (tooling & platform-wide, expanding to mobile) What we offer Technical ownership. You'll shape how iOS is built here, not just pick up tickets. Direct impact. Small team, millions of patients. Your work is visible immediately. AI-forward environment. We're running LLMs in production today — you'll bring that into the mobile experience. Stable employer. Profitable international healthcare organization, not a runway-burning startup. Collective agreement, 30 days vacation, ITP1 pension, wellness allowance, personal education budget. Practical details Start: As soon as possible. We'll accommodate your notice period. Employment: Permanent, full-time. Six month probation period. Location: On-site, Monday–Thursday at Sveavägen 63, Stockholm. Fridays are flexible. Language: English is our working language in tech. Swedish is a plus for collaborating with clinical and business teams, but not a hard requirement. Work permit: You must already have the right to work in Sweden. We handle recruitment internally — no agencies, no consultants, no external recruiters.