Senior Mobile Platform Engineer (Flutter)

Ciklum is looking for a Senior Mobile Platform Engineer (Flutter) to join our team full-time in the Czech Republic.

We are a global Experience Engineering firm working with some of the world's most recognised brands to build digital products that matter. With over 4,000 people across engineering, design, product, and consultancy, we turn complex challenges into elegant solutions. Our clients range from fast-growing startups to global enterprises, and the work we do with them has real impact on real people.

About the role:

As a Senior Mobile Platform Engineer (Flutter), become a part of a cross-functional development team engineering experiences of tomorrow working on a live mobile application that is already on the market and is now being migrated from Unity to Flutter. This is a technically interesting moment to join — the project has a long runway, and if the migration goes well, the same approach will be rolled out across a wider application portfolio as part of a major long-term platform transformation.

We are looking for a Senior Mobile Platform Engineer (Flutter) who genuinely enjoys the craft of mobile engineering and cares about the quality of what they ship. You will be part of a sWe are looking for a highly technical engineer who genuinely enjoys systems design, mobile infrastructure, and developer experience. Instead of building customer-facing UI screens, you will be part of a specialised Platform team responsible for building the core architecture, shared packages, and CI/CD pipelines that empower App teams to deliver faster and safer.

The app ecosystem is going through an exciting technical transformation, migrating from Unity to Flutter, and you will play a crucial role in shaping the scalable foundation. This role is less about pixel-perfect UI and more about SRE principles applied to mobile, clean architecture, and modularity.

You will have real ownership, define architectural standards, and enable other developers to do their best work.

Responsibilities:

• Design, build, and maintain a suite of internal Flutter packages, core services, and architectural foundations
• Establish and maintain robust CI/CD pipelines, automated testing frameworks, and release processes
• Implement mobile SRE practices, including advanced logging, crash reporting, and performance monitoring
• Ensure the codebase is scalable by implementing and managing Monorepo or Micro-frontend architectures
• Actively contribute to the Unity-to-Flutter migration by providing the structural backbone and safe deployment strategies
• Work closely with App Development teams to understand their needs, remove technical bottlenecks, and ensure smooth integration of platform components
• Participate in code reviews, technical discussions, and mentor colleagues on software architecture

Requirements:

We know the perfect candidate rarely ticks every single box. If you have a strong engineering background and are eager to apply it to the Flutter ecosystem, we want to hear from you.

• 5+ years of professional software engineering experience, with a strong focus on backend, infrastructure, or complex mobile architectures
• Solid working knowledge of Dart and Flutter — you don't need to be an expert in building complex UI animations, but you must understand the framework's ecosystem, threading/Isolates, and dependency management
• Deep understanding of CI/CD tools (e.g. GitHub Actions, Bitrise, Codemagic), automation, and DevOps principles applied to mobile
• Experience with Monorepos, modularization, and decoupling large codebases
• Strong grasp of architectural patterns (Clean Architecture, SOLID) and state management (BLoC preferred, Riverpod also welcome) at enterprise scale
  Experience building resilient API layers, handling authentication flows (JWT, OAuth2), and implementing secure data caching

Desirable:

• Background in SRE, DevOps, or building scalable platforms in other tech stacks
• Experience with native iOS (Swift) or Android (Kotlin) development, specifically regarding platform channels and native integrations
• Familiarity with Bluetooth peripherals, IoT, or connected device communication
• Experience with Unity or other cross-platform frameworks
• Background in games or children's digital products

What's in it for you?

• Flexible working hours
• Home office option
• 5 weeks of holiday
• 5 sick days
• Multisport Card
• Meal allowance
• Internal trainings including workshops and seminars
• Paid certifications and technical as well as soft-skills training
• Possibility to participate in international conferences
• Fresh fruit, coffee, and a weekly company breakfast in the office
• Loyalty bonus after 5, 10, 15 and more years with the company
• Referral bonus programme
• Corporate events including team building, outdoor activities,
• Christmas party, health week, summer ice cream, and more
• Hybrid and remote working options available across our Czech offices in Prague, Hradec Králové, and Zlín

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.

With delivery centers in Prague, Hradec Králové, and Zlín, our Czech team delivers end-to-end solutions across industries. Here, innovation thrives through collaboration, and every idea drives our partners' success.

Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

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