Cross-platform Mobile Engineer
Ciklum is looking for a Senior Flutter Engineer to join our team full-time in Ukraine.
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:
To accelerate our mission, we are hiring a Senior Flutter Engineer with a 10x mindset — someone who multiplies the impact of a small team through superb craft, speed with quality, strong product instincts, and the smart use of AI tools to move faster than teams twice our size.
Responsibilities:
- Own the mobile experience. Lead the architecture, implementation, and evolution of our flagship iOS and Android apps, used by tens of thousands of people every day
- Ship end-to-end features. Translate product ideas and Figma designs into pixel-perfect interfaces that are fast, responsive, and delightful across devices.
- Build from scratch. Take new app ideas from concept to production
- Leverage AI to move faster. Use AI-assisted development tools to accelerate coding, testing, debugging, and code review. Help the team adopt and refine AI-powered workflows that increase our output without sacrificing quality
- Scale our component library. Establish reusable widgets, patterns, and tooling to increase velocity and maintain consistency
- Raise the bar on quality. Implement robust unit and integration tests, error monitoring, and performance optimization
- Partner across the stack. Collaborate closely with Product Design, Backend Engineers, and the Leadership Team to define APIs, shape UX, and deliver measurable outcomes
- Own releases. Manage app store submissions, track bugs, and optimize performance
- Mentor and multiply. Share best practices — including AI workflows — review code thoughtfully, and uplevel the team
Requirements:
- 6+ years of mobile app development experience (iOS, Android, React Native, or Flutter)
- 3+ years of hands-on production development with Flutter and Dart
- Pixel-perfect UI using Flutter’s widget system, responsive layouts, and platform-aware design
- Strong understanding of state management, app architecture, and runtime performance
- Experience writing and maintaining automated tests (unit + integration) and working with CI/CD pipelines
- Comfortable managing app releases (App Store and Google Play) and tracking bugs end to end
- Deep understanding of HTTP, REST, and frontend/backend communication patterns
- Active use of AI development tools. You should already be using tools like Cursor, Claude Code, GitHub Copilot, Codex, or similar AI assistants in your daily development workflow. We are not looking for someone who plans to start — we are looking for someone who is already there
- A self-starter with a bias for action — you do not wait to be told what to do
Desirable:
- Experience with native iOS (Swift) or Android (Kotlin) development
- Familiarity with Firebase, push notifications, and deep linking
- Experience with backend development (Java, Spring Boot, or similar)
- SQL proficiency and familiarity with relational databases
- Experience building or integrating AI-powered features into mobile apps (on-device models, LLM APIs, intelligent UX)
- Contributions to open-source projects or published writing on development topics
What’s in it for you?
- Strong community: Work alongside top professionals in a friendly, open-door environment
- Growth focus: Take on large-scale projects with a global impact and expand your expertise
- Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
- Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
- Flexibility: Enjoy radical flexibility — work remotely or from an office, your choice
- Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations
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.
As one of Ukraine’s largest IT companies and a top employer recognized by Forbes, we’ve spent over 20 years delivering meaningful tech solutions. We proudly support diverse talent and military veterans, recognizing their unique skills and perspectives they bring to shaping the future.
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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