Senior Flutter Web Developer

Vor 6 Tagen

Leipzig, Sachsen, Deutschland Cyber Insight GmbH Vollzeit

At Cyber Insight, we are building the next generation of AI-driven platforms for IT security and risk management. Our mission is to empower companies to gain deep insights into their IT landscapes and proactively mitigate risks in an increasingly complex digital world.

To support this mission, we are looking for a Senior Flutter Web Developer who is passionate about building secure, high-performance web applications and enjoys working on products where security, scalability, and reliability truly matter.

Tasks

As a Senior Flutter Web Developer, you will take ownership of core parts of our Flutter-based web platform. You will help define frontend architecture, ensure excellent performance, and implement security-critical features in close collaboration with backend, AI, and product teams.

This role is ideal for someone with deep expertise in BLoC state management, strong frontend security awareness, and a performance-driven mindset.

Your Responsibilities

  • Design, develop, and maintain high-performance Flutter web applications
  • Define and enforce clean architecture patterns, with a strong focus on BLoC
  • Build scalable, testable, and maintainable state management solutions
  • Optimize rendering, bundle size, load times, and runtime performance
  • Implement security-focused frontend solutions (authentication, authorization, secure storage, API protection)
  • Collaborate closely with backend, AI, product, and UX teams
  • Review code, mentor team members, and contribute to technical standards
  • Proactively identify technical risks, security issues, and performance bottlenecks
Requirements
  • Several years of professional experience with Flutter, including Flutter WebDeep, hands-on expertise with BLoC / Cubit and event-driven architectures
  • Strong understanding of Flutter rendering, widget lifecycle, and performance optimization
  • Solid experience with web security concepts, such as:
  1. OAuth / OpenID Connect / JWT-based authentication
  2. Secure API communication
  3. Protection against XSS, CSRF, and common web vulnerabilities
  • Experience designing scalable frontend architectures
  • Confident working with REST and/or GraphQL APIs
  • Strong testing mindset (unit, widget, and integration tests)
  • Ability to take technical ownership and make architectural decisions

Nice to Have

  • Experience with security, compliance, or risk management platforms
  • CI/CD experience for Flutter web
  • Familiarity with performance monitoring and profiling tools
  • Open-source contributions in the Flutter ecosystem
  • Experience with accessibility and internationalization
Benefits
  • Work on a product with real impact in IT security and risk management
  • High degree of technical ownership and influence
  • Challenging problems at the intersection of AI, security, and frontend engineering
  • Flexible working hours
  • Competitive salary and benefits
  • A strong engineering culture focused on quality and collaboration

We are looking forward to meet you

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