Freelance Lead Mobile Developer (Kotlin Multiplatform)

We remain open to considering strong Senior-level candidates 

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  

 We are looking for a Kotlin Multiplatform Developer with experience in both iOS and Android Native to join our mobile development team and work on building a cross-platform application. 

This is a freelance position available in the following locations: Ukraine, Bulgaria, Portugal, Poland, North Macedonia and Kosovo 

Expected project duration is from April 1st until end of September 2026, full-time, potentially to be extended further. 

You will thrive in this role if you are:  

• A curious problem solver who challenges the status quo
• A collaborator who values teamwork and knowledge-sharing
• Excited by the intersection of technology, creativity and data
• Experienced in Agile methodologies and consulting (a plus) 

Role Responsibilities 

• As part of an international team, work on a new cross-platform application
• Besides other application related tasks, dedicate attention to login and authorization (Biometrics, Face ID etc.) components in particular
• Leverage modern mobile technologies like Kotlin Multiplatform, Jetpack Compose, Koin, Gradle, Coroutines Kotlin, Flow Coroutines etc.
• Be involved into some native aspects of iOS and Android
• Provide clear estimates for the identified deliverables and set the direction for the solution
  

Must have qualifications   

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

• Deep understanding & practical experience working with Kotlin Multiplatform – a must
• Experience with native login components like authorization, biometrics, Face ID – a must
• Experience with native IOs and/or Android
• Experience with Jetpack Compose
• Experience with embedding web components
  

Nice to have qualifications  

• Experience working as a Mobile Architect
• Experience with Healthcare applications 

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. 

Your application 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.

Leadership and managerial positions fall under Valtech LE global requirements for additional verifications.  

⚠️ 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. 

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. 

Are you ready to create what’s next? Join us.