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Web and mobile developer focused on building reliable, role-based user experiences and clean integrations across front-end and back-end. I collaborate closely with UI/UX, project managers, and developers to deliver stable, high-quality releases. I work with modern stacks such as React + TypeScript and Flutter, integrating REST APIs, WebSockets, authentication/session logic, push notifications, maps, and file sharing/conversion. I value adaptability, attention to detail, and continuous improvement through mentoring and problem-solving.…Web and mobile developer focused on building reliable, role-based user experiences and clean integrations across front-end and back-end. I collaborate closely with UI/UX, project managers, and developers to deliver stable, high-quality releases. I work with modern stacks such as React + TypeScript and Flutter, integrating REST APIs, WebSockets, authentication/session logic, push notifications, maps, and file sharing/conversion. I value adaptability, attention to detail, and continuous improvement through mentoring and problem-solving.

Mario Alberto Miranda Sandoval

Web Developer, App Developer, Full Stack Developer, +2

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Web and mobile developer focused on building reliable, role-based user experiences and clean integrations across front-end and back-end. I collaborate closely with UI/UX, project managers, and developers to deliver stable, high-quality releases. I work with modern stacks such as React + TypeScript and Flutter, integrating REST APIs, WebSockets, authentication/session logic, push notifications, maps, and file sharing/conversion. I value adaptability, attention to detail, and continuous improvement through mentoring and problem-solving.…Web and mobile developer focused on building reliable, role-based user experiences and clean integrations across front-end and back-end. I collaborate closely with UI/UX, project managers, and developers to deliver stable, high-quality releases. I work with modern stacks such as React + TypeScript and Flutter, integrating REST APIs, WebSockets, authentication/session logic, push notifications, maps, and file sharing/conversion. I value adaptability, attention to detail, and continuous improvement through mentoring and problem-solving.

Available to hire

Web and mobile developer focused on building reliable, role-based user experiences and clean integrations across front-end and back-end. I collaborate closely with UI/UX, project managers, and developers to deliver stable, high-quality releases.

I work with modern stacks such as React + TypeScript and Flutter, integrating REST APIs, WebSockets, authentication/session logic, push notifications, maps, and file sharing/conversion. I value adaptability, attention to detail, and continuous improvement through mentoring and problem-solving.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Intermediate

Work Experience

Web Developer and Mobile Developer at Kapital Bank

May 1, 2024 - Present

Develop and maintain both web and mobile applications. On the web side, build responsive UI using React with TypeScript and global state management (Redux/Recoil), reusable hooks/components, and API integration via Axios interceptors with encryption/decryption. On the back-end, support services using NestJS with MongoDB, implementing CRUD, third-party integrations, microservices, webhooks, and database management. On the mobile side, implement Flutter apps with Clean Architecture, defining project architecture and using GetX/BLoC/Riverpod, deep linking, role-based content generation, widget-to-image/PDF conversion and sharing, and back-end integration services. Build file sharing flows, manage multi-env configuration, and handle platform native features via method channels. Also contribute to app distribution workflows (App Store Connect / Play Console) for testing builds and production releases, including biometric authorization for transaction flows and custom widget drawing/animati

Flutter Consultant at IDS Comercial

October 1, 2023 - May 1, 2024

Provided Flutter consulting services for IDS Comercial with key contributions for GNP Seguros. Implemented Firebase push notifications, dynamic content generation, and user session management based on role. Integrated back-end services and worked closely with back-end developers to ensure seamless integration. Supported deep link implementation and end-to-end feature delivery for two different apps serving distinct areas of GNP Seguros.

Web Developer / Mobile Developer (contribution) at Kata Software

August 1, 2022 - November 1, 2022

Made limited contributions involving React and Flutter. Implemented device feature scanning and integrated features with REST APIs.

Systems Development Assistant at Asociación de Normalización y Certificación

August 1, 2022 - November 1, 2022

Focused primarily on web development using .NET. Designed and implemented layouts with HTML, CSS, JavaScript, jQuery, and Telerik components. Built SQL database structures including stored procedures, views, triggers, and jobs. Assisted in integrating client-side database access through server-side logic, supported internal users, and performed troubleshooting.

Front-end and Mobile Developer at IDS Comercial

August 1, 2021 - November 1, 2022

Worked on troubleshooting and feature delivery across web and mobile. Created PDF and XLSX files populated with back-end responses, enabled file sharing, and handled local database work where needed. Coordinated with project managers, clients, and GNP Seguros IT staff through weekly meetings to review performance, stability, and release readiness.