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Me encanta diseñar programas, aprender cosas nuevas y crear sistemas, no me detengo ante los retos, soy muy responsable y dedicado en lo que hago.","rawText":"Hola, bienvenido, mi nombre es Saúl Hernández, soy desarrollador de aplicaciones de escritorio y web con mayor tendencia al área de backend, arquitectura del software, modelado de bases de datos relacionales y servicios web. Me encanta diseñar programas, aprender cosas nuevas y crear sistemas, no me detengo ante los retos, soy muy responsable y dedicado en lo que hago.","canEdit":false,"editUrl":"https://www.workana.com/freelancer/637897e0153e0e47c04e5d928229608a/profile/description","g11n":{"edit":"Edit","save":"Save","cancel":"Cancel","warning":"Warning: Don't share contact information or you may be blocked.","expandText":"View more","collapseText":"View less","placeholder":"In a few words, sum up what best defines you as a professional. Show the world what you have to offer and give direction to your freelance career. 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●    Se trabajo continuamente en el desarrollo e incorporación de funcionalidades o cambios en la aplicación backend de acuerdo a las necesidades y decisiones de la Start-Up.
●    Se desarrollo e incorporo un sistema de recomendaciones basado en el histórico de compras del usuario, así como su perfil (gustos, intereses y restricciones) comparado con otros usuarios, ofreciendo así al usuario final diversas opciones de compra personalizadas para agregar a su carrito de compra.
●    Se desarrollo e incorporó un pequeño sistema ETL que facilita a los clientes la carga y descarga de su catálogo de productos, así como las configuraciones básicas de su negocio, utilizado principalmente en la creación o importación de clientes.
●    Se incorporo el uso de un motor de reglas de negocio simple en Python para facilitar al cliente la determinación de precios de sus productos basadas en condiciones, así como para definir algunas configuraciones de su negocio en la plataforma.
●    Se trabajo en el desarrollo de una aplicación web que conecta y muestra en un mapa los diferentes comercios asociados a la compañía de acuerdo a la posición del usuario final.
●    Se trabajo en el desarrollo e incorporación de un chat general que maneja y conecta las distintas vías de comunicación del negocio (principalmente redes sociales) con los usuarios finales.
Stack tecnológico: Python/Django, Django-Rest, React-Python, Scikit-Learn, Scikit-Surprise, Pandas, Rule-Engine, Selenium, Node/Qwik, StreetMapView, PostgreSQL, Redis.

Shocklogic, Fullstack — 01, 2023 – 04, 2023

Se agregaron nuevas funcionalidades y corrigieron problemas sobre la aplicación web de la empresa, entre los cuales destacan por su aporte a la experiencia del usuario:
●    Se trabajo en la presentación de miniaturas de los posters de las presentaciones en la pantalla principal del evento.
●    Se mejoro la presentación del calendario de actividades por evento para que los mismos se organicen automáticamente sin solapamiento.
●    Se agrego una nueva funcionalidad en la cual una thumbnail es automáticamente generado en cada carga de video en la página de recursos de una presentación en un evento, dicho thumbnail es presentado en lugar del video hasta que se presiona el botón de play, esto con el objetivo de evitar descargar todos los videos durante la carga de la página de detalle de una presentación.
Stack tecnológico: PHP, PHP/Laravel, PHP/Fligth, Classic ASP, Angular, FFmpeg, Node, Puppeteer.

Kemok, Fullstack | Data Enginer — 04, 2020 - 09, 2022

●    Propuse, desarrollé e implemente basado en las necesidades de la empresa una plataforma para la extracción, transformación y carga de archivos de tipo xls, xlsx, xlsm y csv con la que se automatizo el 100% del proceso que ahora son tratados directamente por el cliente gracias a una interfaz web y/o un cliente ftp disminuyendo en un 90% la carga de trabajo de soporte asi como de desarrollo para ese proyecto.
●    Desarrollé 4 proyectos de uso interno, siendo uno de ellos (una aplicación y servicio web para notificaciones masivas vía email, sms y telegram basado en templates) merecedor de la distinción MVP por su potencial para ser utilizado como un servicio más para la compañía.
●    Estando a cargo de la aplicación del servicio principal de la compañía solucionamos en un mes un problema que afecto el núcleo del programa y que amerito su reescritura realizando entregas funcionales semanales con lo que se consiguió conservar la clientela de la empresa.
Stack tecnológico: Django, Django Q, Django-Rest, Redis, PostgreSQL, Pandas, Airflow, BeautifulSoup, Selenium, Docker.

Alpha Consultores SAC, Backend — 04, 2019 - 01, 2020

●    Se desarrollaron las historias de usuario faltantes para poner en marcha un proyecto de facturación electrónica, en el proceso se optimizó el firmado y generación de los xml siendo un 15% más rápido que el original.
●    Se desarrolló un servicio de Windows que permitía integrar una aplicación de terceros con el servicio de facturación electrónica obteniendo la satisfacción del cliente.
Stack tecnológico: C# .Net, Web API, SQL Server, EntityFramework, Linq, Xml, Azure, Servicio de Windows, SignalR.

Wynges, .Net Developer — 04, 2018 - 12, 2018

●    Se añadieron funcionalidades y se realizó mantenimiento a una aplicación de escritorio de tipo ERP para gestión de pymes, los cambios destacables son: migración de la versión 3 a la 4 y posteriormente a la 4.7, añadir un sistema de tabs para facilitar el trabajo con diferentes módulos al mismo tiempo, añadir soporte de hilo seguro y usar tareas en segundo plano para eficientar procesos con acceso a recursos o mayor demanda computacional.
●    Se implementaron proyectos ETL’s para el datacenter de Wallmart Argentina y se agregaron endpoints al servicio WCF de uso de la aplicación ERP.
Stack tecnológico: C# .Net, WindowsForm, WCF Service, IntegrationServices, SQL Server.

Sofing, C.A., Backend — 03, 2017 - 12, 2017

●    Se trabajó en la implementación de las bases de un ERP web para empresas metalmecánicas a partir del diseño de los analistas así como las contribuciones de los equipos de desarrollo y QA.
Stack tecnológico: C# .Net, Web API, Web MVC, Entity Framework, LINQ, SQL Server.","rawText":"Benefi 365, Backend — 04, 2023 - 05, 2024 ● Se trabajo continuamente en el desarrollo e incorporación de funcionalidades o cambios en la aplicación backend de acuerdo a las necesidades y decisiones de la Start-Up. ● Se desarrollo e incorporo un sistema de recomendaciones basado en el histórico de compras del usuario, así como su perfil (gustos, intereses y restricciones) comparado con otros usuarios, ofreciendo así al usuario final diversas opciones de compra personalizadas para agregar a su carrito de compra. ● Se desarrollo e incorporó un pequeño sistema ETL que facilita a los clientes la carga y descarga de su catálogo de productos, así como las configuraciones básicas de su negocio, utilizado principalmente en la creación o importación de clientes. ● Se incorporo el uso de un motor de reglas de negocio simple en Python para facilitar al cliente la determinación de precios de sus productos basadas en condiciones, así como para definir algunas configuraciones de su negocio en la plataforma. ● Se trabajo en el desarrollo de una aplicación web que conecta y muestra en un mapa los diferentes comercios asociados a la compañía de acuerdo a la posición del usuario final. ● Se trabajo en el desarrollo e incorporación de un chat general que maneja y conecta las distintas vías de comunicación del negocio (principalmente redes sociales) con los usuarios finales. Stack tecnológico: Python/Django, Django-Rest, React-Python, Scikit-Learn, Scikit-Surprise, Pandas, Rule-Engine, Selenium, Node/Qwik, StreetMapView, PostgreSQL, Redis. Shocklogic, Fullstack — 01, 2023 – 04, 2023 Se agregaron nuevas funcionalidades y corrigieron problemas sobre la aplicación web de la empresa, entre los cuales destacan por su aporte a la experiencia del usuario: ● Se trabajo en la presentación de miniaturas de los posters de las presentaciones en la pantalla principal del evento. ● Se mejoro la presentación del calendario de actividades por evento para que los mismos se organicen automáticamente sin solapamiento. ● Se agrego una nueva funcionalidad en la cual una thumbnail es automáticamente generado en cada carga de video en la página de recursos de una presentación en un evento, dicho thumbnail es presentado en lugar del video hasta que se presiona el botón de play, esto con el objetivo de evitar descargar todos los videos durante la carga de la página de detalle de una presentación. Stack tecnológico: PHP, PHP/Laravel, PHP/Fligth, Classic ASP, Angular, FFmpeg, Node, Puppeteer. Kemok, Fullstack | Data Enginer — 04, 2020 - 09, 2022 ● Propuse, desarrollé e implemente basado en las necesidades de la empresa una plataforma para la extracción, transformación y carga de archivos de tipo xls, xlsx, xlsm y csv con la que se automatizo el 100% del proceso que ahora son tratados directamente por el cliente gracias a una interfaz web y/o un cliente ftp disminuyendo en un 90% la carga de trabajo de soporte asi como de desarrollo para ese proyecto. ● Desarrollé 4 proyectos de uso interno, siendo uno de ellos (una aplicación y servicio web para notificaciones masivas vía email, sms y telegram basado en templates) merecedor de la distinción MVP por su potencial para ser utilizado como un servicio más para la compañía. ● Estando a cargo de la aplicación del servicio principal de la compañía solucionamos en un mes un problema que afecto el núcleo del programa y que amerito su reescritura realizando entregas funcionales semanales con lo que se consiguió conservar la clientela de la empresa. Stack tecnológico: Django, Django Q, Django-Rest, Redis, PostgreSQL, Pandas, Airflow, BeautifulSoup, Selenium, Docker. Alpha Consultores SAC, Backend — 04, 2019 - 01, 2020 ● Se desarrollaron las historias de usuario faltantes para poner en marcha un proyecto de facturación electrónica, en el proceso se optimizó el firmado y generación de los xml siendo un 15% más rápido que el original. ● Se desarrolló un servicio de Windows que permitía integrar una aplicación de terceros con el servicio de facturación electrónica obteniendo la satisfacción del cliente. Stack tecnológico: C# .Net, Web API, SQL Server, EntityFramework, Linq, Xml, Azure, Servicio de Windows, SignalR. 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