j
jabran_haider

Jabran Haider

@jabran_haider
5,0(3)

Sr Mobile App Developer

Pakistan
Inglese
Alcune informazioni sono riportate in lingua inglese.
Chi sono
I am a Senior Mobile Application Developer with 5+ years of experience building high-performance, scalable Android & iOS apps. I specialize in Flutter development, Firebase (Auth, Firestore, Push Notifications), REST API integration, SQLite & MySQL, CI/CD pipelines, and advanced features like audio-video calls, live chat, in-app purchases, and automated Bluetooth communication. I deliver clean, maintainable, and user-friendly apps for startups, small businesses, and app idea owners. https://jabran-haider-dev.vercel.app/... Continua a leggere

Competenze

j
jabran_haider
Jabran Haider
offline • 
Tempo di risposta medio: 1 ora

Consulta i miei servizi

Sviluppo multipiattaforma
I will develop elite flutter mobile application for ios and android
5,0(3)
Integrazioni IA
I will build custom rag ai chatbot using claude or openai

Portfolio

Esperienza lavorativa

Software Engineer

Manafa Technologies

Feb 2025 - Present1 yr 6 mos

Worked on Manafa, a fintech product, focusing on maintenance, feature enhancements, and performance optimization. • Implemented BLoC and Cubit state management to ensure consistent and maintainable UI states, improving code readability and scalability. • Integrated Retrofit and Dio for robust network communication with structured API handling, error management, and streamlined data modeling. • Adopted Clean Architecture principles, structuring apps into data, domain, and presentation layers for improved testability and scalability. • Implemented automated JSON parsing and resource generation, ensuring type safety, reducing boilerplate, and improving developer productivity. • Collaborated with backend and product teams to integrate fintech-specific features such as secure transactions, account management, and real-time financial data visualization. • Ensured data security and compliance with financial standards while integrating APIs and handling sensitive user information. • Optimized application performance and responsiveness, delivering a seamless user experience in a high-traffic financial environment.

Software Engineer

RootPointers • Full time

Feb 2024 - Jan 202511 mos

• Built cross-platform mobile applications using Flutter with BLoC/Cubit and Clean Architecture. • Integrated In-App Purchases, subscription models, and payment gateways for monetization. • Implemented real-time communication features such as audio/video calls and live chat. 1 / 4 • Utilized Google Cloud Services (real-time databases, cloud functions) for backend integration. • Integrated and managed external sensors and hardware-triggered features within mobile applications. .NET Backend Development • Developed and maintained RESTful Web APIs using .NET 8 and .NET 6 following Clean Architecture principles. • Designed and managed SQL databases, implementing Entity Framework Core with multiple database contexts. • Built authentication and authorization systems (JWT, role-based access control) to ensure application security. • Optimized API performance with caching, async programming, and query optimization. • Implemented file storage and retrieval systems using AWS S3, Linode Buckets, and other cloud providers. • Created scalable API endpoints to support real-time communication features in mobile applications. • Integrated third-party APIs for payments, messaging, and external services. • Applied CI/CD pipelines for automated builds and deployment of .NET applications. • Collaborated with teams to ensure seamless integration between backend APIs and frontends

Flutter Developer

Tycoonz Solutions • Full time

Jan 2023 - Jan 20241 yr

• Developed cross-platform mobile and desktop applications using Flutter. • Implemented state management solutions with GetX to ensure scalable and efficient application architecture. • Integrated Firebase services for authentication, notifications, and cloud storage. • Implemented Google Maps APIs for real-time location-based features. • Enabled In-App Purchases with secure transaction processing for monetization. • Integrated blockchain backend services (developed by backend team) into the application for: a. End-to-end encrypted chat functionality b. Multi-currency crypto wallet support (BTC, Solana, Ethereum, etc.) • Collaborated closely with the backend team to ensure smooth API communication and secure data handling.

3 Recensioni
5,0

(3)
(0)
(0)
(0)
(0)
Valutazione dettagliata
  • Livello di comunicazione del venditore
    5
  • Consiglia a un amico
    5
  • Servizio conforme alla descrizione
    5
1-3 di 3 recensioni
Ordina per
Più rilevante
    M

    marcsessoms

    US

    Stati Uniti

    Collaborazione in corso
    5

    Awesome to work with including teaching me new things

    50 USD

    $

    1 giorno

    Tempo

    gig

    Sviluppo multipiattaforma

    Utile?
    No
    M

    marcsessoms

    US

    Stati Uniti

    Collaborazione in corso
    5

    Completed job as requested.

    50 USD

    $

    2 giorni

    Tempo

    gig

    Sviluppo multipiattaforma

    Utile?
    No
    K

    kanonmiah559

    GB

    Regno Unito

    5

    Highly recommended, He designed me a wedding booking system which obtains details and creates a contract for the customer with correct payment structures. His dedication towards the project was really good and has been communicating with myself to get the right level of work required for my business....

    50 USD-100 USD

    $

    gig

    Sviluppo multipiattaforma

    Utile?
    No