Senior Mobile Engineer (Flutter) - Cross-Platform & AI-Driven

Lever, Inc.; Polska; Hybrid; PLN 180,000 - 280,000; Full time

Job summary

Creatio, a global CRM and workflow platform provider, seeks a Mobile Developer in Poland to build cross‑platform experiences with Flutter and integrate with native Android/iOS apps. You will own features end‑to‑end, including offline scenarios and platform channels, while collaborating with the Tech Lead, QA, and Product teams.

The role emphasizes enabling AI-assisted development, clean architecture, and robust testing practices, with opportunities to mentor peers and influence architecture

Qualifications

• 4+ years of professional software development experience, including 3+ years in mobile development.
• Strong hands-on experience with Flutter and Dart.
• Experience integrating cross-platform modules with native Android/iOS applications and working with platform-specific functionality.
• Hands-on experience with JavaScript and TypeScript.
• Good understanding of state management and unidirectional data flow, such as BLoC.
• Solid knowledge of Clean Architecture, SOLID principles, dependency injection, and modular design.
• Experience with REST APIs, JSON, local persistence, and offline/synchronization scenarios.
• Familiarity with at least one native mobile technology: Java, Kotlin, Objective-C, or Swift.
• Strong testing practices, including unit and widget testing.
• Experience with Git, CI/CD, automated testing, and static analysis.
• Practical exposure to AI-assisted development and agentic workflows, or strong interest in this area.
• English level: Upper-Intermediate (B2) or higher.

Responsibilities

• Design and implement mobile features end to end across Flutter and native Android/iOS layers.
• Build reusable components and business features using native device capabilities, REST APIs, and offline scenarios.
• Own the technical design and quality of delivered features, including data flow, edge cases, and testing.
• Develop integrations between cross-platform and native functionality using platform channels.
• Investigate and resolve production issues, including platform-specific, performance, and synchronization problems.
• Review code and contribute to engineering guidelines, reusable components, and internal tooling.
• Participate in technical research, prototyping, and validation of new capabilities.
• Mentor middle and junior engineers through reviews, pairing, and knowledge sharing.
• Collaborate with Tech Lead, Engineering Manager, QA, and Product teams to define workable technical solutions.
• Occasionally contribute to backend (.NET/C#) or web (Angular/TypeScript) components.
• Contribute to AI-assisted and agentic engineering practices within the team.

Skills

Flutter and Dart

REST APIs

JSON

State management (BLoC)

Clean Architecture

Git

CI/CD

TypeScript

Angular

Platform integration (Android/iOS)

Tools

Git

CI/CD

Angular

TypeScript

Job description

Creatio, a global CRM and workflow platform provider, seeks a Mobile Developer in Poland to build cross‑platform experiences with Flutter and integrate with native Android/iOS apps. You will own features end‑to‑end, including offline scenarios and platform channels, while collaborating with the Tech Lead, QA, and Product teams.

The role emphasizes enabling AI-assisted development, clean architecture, and robust testing practices, with opportunities to mentor peers and influence architecture