Sebastián Rodrigo Castellanos Cardozo
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Sebastián Rodrigo Castellanos Cardozo

Sebastián Rodrigo Castellanos Cardozo  new_releases

About

Detail

Mobile and Frontend Developer
Bogotá, Bogota, Colombia
Contact Sebastián regarding: 
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Full-time jobs
Starting at USD1.6k/month
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Timeline

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Résumé

Jobs verified_user 0% verified
  • Credibanco S.A.
    Semi Senior Android Developer
    Credibanco S.A.
    Apr 2024 - Current (2 years 1 month)
    Development of SDKs to work with hardware functions, such as NFC, Bluetooth, front and rear cameras, stripe or contact card readers, and software for different dataphone devices running Android 7 to Android 12 (including kernel and transaction tasks), along with their technical documentation. Additionally, version control was managed using GitHub and GitLab. Refactoring of Java code to Kotlin and migrations from Koin to Dagger Hilt. Management of coroutines, threads, view models, workers, services with retrofit, HTTP, etc. Mitigation of production bugs and security vulnerabilities.
  • Peoplepass
    Semi Senior Android and Frontend Developer
    Peoplepass
    Aug 2022 - Oct 2023 (1 year 3 months)
    • Led native development using Kotlin and hybrid development using React Native and Angular for two new transactional web applications. Optimized resources by applying best practices and clean architecture to ensure efficient development within the established timeframes. • Implementation of two-step verification using OTP codes and codes sent via email. Additionally, an extra security layer was added by verifying the user's personal document through MetaMap. • Efficiently manage the resources of each project. For example, generic components were created, both visual and those with business logic for general use. • Optimized and mitigated security vulnerabilities within the code.
  • Az Smart Technology
    Android and Frontend Developer
    Az Smart Technology
    Jan 2022 - Aug 2022 (8 months)
    • Development, support, and versioning of native and hybrid mobile applications. Creation of a new real-time platform for GPS location tracking using React, Open Street Map and Google Maps. • Migration of a static website for ticket management and support to the new web application using React, Styled Components and Hooks. • Creation and implementation of a pani button for the mobile application, which is activated through the physical volume buttons and generates a sound and visual alert on the support platform created in React.
  • Indra
    Ingeniero de infraestructura
    Indra
    Apr 2021 - Dec 2021 (9 months)
    - Administrar servidores Windows, realizar depuración de memorias, discos, validar logs, hacer reinicios, etc. Brindar soporte técnico mediante llamadas con el cliente si así lo requiere el servidor.
  • H
    Frontend Developer
    Hale Systems
    Jan 2016 - Dec 2016 (1 year)
    • Developed, supported, and versioned Android and hybrid applications using Kotlin, Java, Swift, React Native, and Ionic. Managed data persistence through SQLite. • Designed and implemented a panic button feature utilizing the physical volume buttons. • Managed code, versioning, and documentation using GitLab and Azure.
Education verified_user 0% verified
  • Universidad Antonio Nariño
    Ingeniería de sistemas
    Universidad Antonio Nariño
    Feb 2018 - Apr 2024 (6 years 3 months)
  • Servicio Nacional del Aprendizaje-SENA
    Técnico en Programación de Software
    Servicio Nacional del Aprendizaje-SENA
    Jan 2016 - Nov 2016 (11 months)
  • C
    Bachiller académico
    Colegio IED Andrés Bello
    Jan 2009 - Nov 2015 (6 years 11 months)
Projects (professional or personal) verified_user 0% verified
  • C
    C4llPhone
    Feb 2024 - Current (2 years 3 months)
  • P
    AureoStock
    PENDIENTE
    Feb 2021 - Jun 2021 (5 months)
    - Desarrollador de software
Publications verified_user 0% verified
  • P
    Predictive Modelling of Traffic Accidents in Bogotá, Colombia: Uncovering Key Contributing Factors.
    Apr 2024
    Published a scientific article based on the degree thesis: "Predictive Modelling of Traffic Accidents in Bogotá, Colombia: Uncovering Key Contributing Factors."