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$
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I will build your cross platform mobile app with flutter
Karim Belkacem
Level 1
5,0
5,0
Sobre este Serviço
Do you need a Flutter app that actually works on Android and iOS?
I build professional, cross-platform mobile apps with Flutter for startups, founders, and businesses that want a fast, scalable, and modern solution all from a single codebase.
Whether you're launching your first app, scaling an existing product, or need a reliable developer to finally get it done right: I've got you covered.
What I build for you:
- Custom Flutter app for Android & iOS
- Firebase & REST API integration
- Authentication systems (email, Google, Apple, etc.)
- Database connections & real-time data
- Responsive, modern UI with smooth performance
- Bug fixing, optimization & feature enhancements
Why clients choose me:
- Clean, scalable code built to grow with your business
- Strong focus on quality, performance & usability
- Transparent communication throughout the entire project
- Based in Germany reliable, structured, EU-compliant
- From idea to delivery, I support you every step of the way
You're in the right place if you are:
- A startup building your first MVP
- A business launching a new mobile product
- A founder looking for a trustworthy Flutter developer
- Someone who needs long-term support and improvements
Message me befor
Conheça mais sobre Karim Belkacem
Karim Belkacem
Seasoned Python developer and mobile app specialist with over 10 years
Level 1
- A partir deAlemanha
- Membro desdeset. de 2022
- Responde em aprox.:1 hora
- Última entrega4 meses
Idiomas
Alemão, Inglês, Francês
✅ 10+ years of experience in Python development – designing, building, and scaling reliable applications across different industries.
📱 Mobile app developer (iOS & Android) – specialized in Flutter and native integrations, delivering smooth, user-friendly apps.
☁️ Expert in Google Cloud Platform & Firebase – end-to-end app infrastructure, including authentication, real-time databases, cloud functions, analytics, and scalable deployments.
🐍 Bulletproof Python code – clean, maintainable, and optimized for performance, with a strong focus on testing, automation, and long-term reliability.
Meu portfólio
Perguntas frequentes
What do I need to get started?
Please provide a clear description of your app idea, any reference designs (if available), feature list. Wireframes or sketches are also helpful but not required.
Will my app work on both Android and iOS?
Yes! I use Flutter to build cross-platform apps that work seamlessly on both Android and iOS devices using a single codebase.
Do you provide ongoing support or maintenance?
Yes, I offer ongoing support and maintenance after delivery for an additional fee. You can also include a support period in a custom offer.
Will the app have a backend or database?
Yes, if needed. I can integrate Firebase, REST APIs, or other backend services. We’ll define your backend needs during our initial discussion.
What if I don’t have a detailed idea yet?
No problem! I can help you shape your idea, define core features, and guide you toward a solid MVP (Minimum Viable Product).
Can you convert my existing app into Flutter?
Definitely! I can help you migrate your existing native Android or iOS app into Flutter for easier maintenance and cross-platform support.
Avaliações
6 avaliações deste Serviço
| (6) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
Ordenar por
Mais relevante
K karlg_g
Alemanha
Die Lieferung war schneller als erwartet, es war alles wunderbar. Die Expertise ist eindeutig zu erkennen, da macht eine Zusammenarbeit spaß. Gerne wieder
US$ 50
$
2 dias
Tempo
Útil?M mrichterr
Alemanha
Wie immer eine top Leistung. Unterstützung in jeglicher Hinsicht, man kann sich blind auf die Ausführung verlassen. Die App läuft dank Belkacem reibungslos und ist ein Erfolg. Auch proaktiv werden Fehler angesprochen und dementsprechend beseitigt. Unterm Strich professionelle und zuverlässige Zusammenarbeit. Dankeschön 😊
US$ 50
$
1 dia
Tempo
Útil?G guentherpag
Áustria
great to work with him!! Delivered very fast and a requested change was immediately done!
US$ 400-US$ 600
$
8 dias
Tempo
Útil?M mrichterr
Alemanha
Alles Top wie schon zuvor. Sehr professionelle Arbeit. Sehr gerne wieder.
US$ 50
$
2 dias
Tempo
Útil?J juliaklii
Alemanha
Belkacem delivered the project ahead of schedule. All required files were provided, well-structured, and clearly documented. Communication was smooth and professional throughout the process. His technical skills and attention to detail were evident in the final result. I’m satisfied with the collaboration...
US$ 100-US$ 200
$
4 dias
Tempo
Útil?
Avaliações
6 avaliações deste Serviço
| (6) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
Ordenar por
Mais relevante
K karlg_g
Alemanha
Die Lieferung war schneller als erwartet, es war alles wunderbar. Die Expertise ist eindeutig zu erkennen, da macht eine Zusammenarbeit spaß. Gerne wieder
US$ 50
$
2 dias
Tempo
Útil?M mrichterr
Alemanha
Wie immer eine top Leistung. Unterstützung in jeglicher Hinsicht, man kann sich blind auf die Ausführung verlassen. Die App läuft dank Belkacem reibungslos und ist ein Erfolg. Auch proaktiv werden Fehler angesprochen und dementsprechend beseitigt. Unterm Strich professionelle und zuverlässige Zusammenarbeit. Dankeschön 😊
US$ 50
$
1 dia
Tempo
Útil?G guentherpag
Áustria
great to work with him!! Delivered very fast and a requested change was immediately done!
US$ 400-US$ 600
$
8 dias
Tempo
Útil?M mrichterr
Alemanha
Alles Top wie schon zuvor. Sehr professionelle Arbeit. Sehr gerne wieder.
US$ 50
$
2 dias
Tempo
Útil?J juliaklii
Alemanha
Belkacem delivered the project ahead of schedule. All required files were provided, well-structured, and clearly documented. Communication was smooth and professional throughout the process. His technical skills and attention to detail were evident in the final result. I’m satisfied with the collaboration...
US$ 100-US$ 200
$
4 dias
Tempo
Útil?
