Abdul Jalil Sireis
I'm
About Me
8+ years building high-performance Flutter applications with expertise in Dart, Firebase, and modern architectures
Flutter Developer & Mobile Architect
Specializing in clean code, performance optimization, and AI integration for mobile applications
- Location: Prague, Czech Republic
- Telegram: @fluttercto
- Availability: Open to new projects
- Experience: 8+ years
- Email: abd.eng.pe@gmail.com
- Call: +48 732085203
Technical Skills
My expertise spans across mobile development, architecture design, and performance optimization
Mobile Development
Backend & Cloud
DevOps & Tools
Testing & Architecture
Professional Experience
My journey as a mobile developer specializing in Flutter and cross-platform solutions
Summary
Abdul Jalil Sireis
Innovative Senior Flutter Developer with 8+ years of experience building high-performance mobile applications. Specialized in Flutter, Dart, Firebase, and modern architectures.
- Prague, Czech Republic
- +48 732085203
- abd.eng.pe@gmail.com
Education
Bachelor of Science in Computer Science
2011 - 2015
Czech Technical University, Prague
- Relevant Coursework: Mobile App Development, Distributed Systems, UX Design
- Thesis: "Optimizing Mobile UI Rendering Performance"
Certifications
Flutter & Dart - The Complete Guide
Udemy | 2023
Advanced state management, Firebase integration, and performance optimization
Professional Experience
ArtemisOne | Senior Flutter Developer
Sep 2024 - Present | Remote
- Developed cross-platform remote access solution for Android, Windows, and Web
- Reduced latency by 25% through Dart isolate refactoring
- Implemented Clean Architecture for modular maintainability
- Ensured GDPR and enterprise security compliance
Staffmonitor Sp. z o.o. | Senior Flutter Developer
Jan 2023 – Aug 2024 | Warsaw, Poland
- Led full-cycle development of StaffMonitor.app (iOS/Android)
- Achieved 4.7/5 App Store ratings and 99.5% crash-free sessions
- Built real-time activity tracking with geofencing
- Mentored 3 junior developers in BLoC patterns
Hexagon Manufacturing Intelligence | Flutter Developer
Jan 2019 – Dec 2022 | Prague, Czechia
- Migrated 3 native apps (500K+ users) to Flutter
- Reduced monthly maintenance costs by 60%
- Modernized state management with Riverpod + Freezed
- Improved render speed by 35%
Hexagon Manufacturing Intelligence | Mobile Developer
Oct 2015 – Dec 2018 | Prague, Czechia
- Built workforce scheduling app with Kotlin/Swift
- Reduced employee shift conflicts by 25%
- Automated release cycles with Jenkins/Fastlane
Technical Portfolio
Some of my recent Flutter projects and applications
Flutter Development Services
Comprehensive solutions tailored to your mobile development needs
Flutter Architecture
Design scalable app architectures using Clean Architecture, BLoC, and Riverpod to ensure maintainability and testability at enterprise scale.
- Reduce code complexity by 40-60%
- Achieve 99%+ crash-free sessions
- Onboarding documentation included
Performance Tuning
Expert optimization of Flutter apps to achieve native-level performance through advanced rendering techniques and memory management.
- 60% faster frame rendering
- 50% reduced memory usage
- Detailed performance reports
Native to Flutter Migration
Seamless transition from native Android/iOS to Flutter while preserving existing functionality and improving maintainability.
- 60% maintenance cost reduction
- Feature parity guarantee
- Gradual migration strategy
Firebase Solutions
End-to-end Firebase integration including authentication, realtime databases, cloud functions, and analytics.
- HIPAA/GDPR compliance
- Offline-first capabilities
- Security rules audit
Flutter CI/CD
Professional build pipelines for automated testing, deployment, and distribution to app stores.
- 80% faster release cycles
- Automated screenshot tests
- Crash reporting integration
Team Mentoring
Elevate your team's Flutter expertise through code reviews, architecture guidance, and best practices training.
- 25% productivity increase
- Customized learning paths
- Architecture blueprint
Client Testimonials
What my clients say about working with me
Contact
Thank you for visiting my portfolio. I'm always excited to connect with new people and explore potential collaborations. Whether you have a question, a project proposal, job opportunities, or just want to say hello, feel free to reach out. I'd love to hear from you!
Address
169 00 Prague 6-Bevnov, Prague, Czechia
Email Me
abd.eng.pe@gmail.com
Call Me
+48 732085203