Senior Flutter Engineer

Ciklum is looking for a Senior Flutter Engineer to join our team full-time in Slovakia.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Senior Flutter Engineer, become a part of a cross-functional development team engineering experiences of tomorrow.

The client builds connected digital play experiences that reach millions of children and families worldwide. While legacy applications continue to bring daily joy to kids, new products expand how children interact with our play. This role ensures that strong mobile engineering becomes a foundational capability across the portfolio. By driving architecture, improving development practices, and supporting both legacy and modern applications, your work will directly support the organization’s ambition to deliver high-quality digital play experiences.

Responsibilities:

• Write clean, well-tested Flutter code for a production mobile app used by millions of users on iOS and Android
• Actively contribute to the Unity-to-Flutter migration, helping maintain stability during the transition
• Take part in technical discussions and help shape architectural decisions
• Participate in code reviews and give constructive, thoughtful feedback
• Support and mentor colleagues when needed, and share what you know
• Work closely with designers, QA, firmware engineers, and product teams on a daily basis
• Show up to stand-ups, planning sessions, and retrospectives with ideas, not just updates

Requirements:

We know the perfect candidate rarely ticks every single box. If you feel strongly about the role, we would still love to hear from you.

• 5+ years of professional software engineering experience, with at least 2 years of hands-on Flutter and Dart production experience
• Strong grasp of Flutter app architecture, widget lifecycle, and state management (BLoC preferred, Riverpod also welcome)
• Experience integrating mobile apps with REST APIs, handling authentication flows (JWT, OAuth2), and building resilient API layers
• Comfortable working with Firebase services such as Firestore, Authentication, Cloud Functions, or Push Notifications
• Familiarity with offline/online sync strategies and data caching on mobile
• Experience working in and modernising existing codebases, not just greenfield projects
• Good understanding of CI/CD pipelines and release processes for mobile

Desirable:

• Experience with Unity or other cross-platform frameworks
• Background in games or children's digital products
• Familiarity with Bluetooth peripherals, IoT, or connected device communication
• Native iOS or Android development experience
• Flutter web or desktop experience is a nice bonus, though not in scope right now

What’s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door culture that values initiative and empowers its people to succeed
• Fast-paced & agile environment: Be part of a dynamic, fast-moving organization that champions efficiency and innovation
• Global exposure: Collaborate with international, cross-functional teams and contribute to large-scale initiatives
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Flexibility: Balance office and remote work to fit your rhythm
• Care: Take advantage of our extensive benefits offering, aligned with the best market standards

The salary starts from 3100 Euro gross. The final salary depends on the previous experience and professional knowledge of the candidate.

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.

Our Slovakia hub brings together passionate professionals working on global initiatives. Be part of a close-knit team that’s driving digital transformation and creating lasting impact.

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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