Mario Leonel J.

Mario leonel j.

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  • Timeline

  • About me

    Full Stack Web Developer

  • Education

    • Itca

      2010 - 2011
    • Universidad tecnológica de el salvador

      2003 - 2013
      Ingeniería sistemas y computación
  • Experience

    • Transactel

      Mar 2009 - Oct 2010
      It developer

      - Developed web applications using PHP/Symfony 1 framework- Managed MySQL databases and optimized SQL queries for efficient data access and manipulation- Developed user interfaces using HTML, CSS, and Javascript, with a focus on responsive design and usability- Utilized version control systems (e.g. Git) to manage and collaborate on code- Followed best practices and industry standards for web development, including coding conventions and security guidelines

    • Dada dada y cia, s.a. de c.v.

      Dec 2010 - Feb 2012
      It developer / dba.

      - Analyzed, designed, and developed desktop and rich internet applications using UniPaaS (Magic Software)- Managed MySQL databases and optimized SQL queries for efficient data access and manipulation- Developed internal applications using Visual Basic, with a focus on usability and user experience- Worked with project managers and stakeholders to understand requirements and deliver high-quality solutions that met business needs

    • Wowfi

      Jan 2012 - Dec 2018
      Lead full stack developer / sysadmin

      - Developed new software products from scratch and added new features to existing ones, primarily using PHP/Symfony2 and Python/Django frameworks- Managed the software development workflow, including planning, coding, testing, and deployment- Managed Amazon Web Services infrastructure and automated deployments and infrastructure using Chef/OpsWorks- Managed SQL (MySQL) and NoSQL (MongoDB) databases, including optimizing queries and ensuring data integrity

    • Coding hub costa rica

      Jul 2019 - Jul 2020
      Desarrollador de php

      - Analyzed and transformed product owner requirements into solutions that met the needs of clients, following high design standards- Collaborated with the UI/UX design and mobile development teams to build a cohesive and functional system- Used HTML5, CSS3 (SCSS), PHP (custom framework), MySQL databases, jQuery, and Docker in the project- Worked on the development of mostly new features for one of the company's clients- Wrote documentation for new features implemented in applications- Implemented pixel-perfect UI designs using HTML and CSS- Conducted group code reviews and presented new features/functionality to product owners and product managers Show less

    • Luep

      Aug 2020 - Sept 2023
      Full stack developer

      Full Stack Web Developer- Worked with a team of developers to design and implement new features for the web application and API used by the company's native mobile applications- Utilized a range of technologies, including HTML5, CSS3, PHP (Laravel and CodeIgniter frameworks), JavaScript (jQuery library), MySQL, Pusher (for real-time events), and Firebase for push notifications- Collaborated with designers and product managers to understand requirements and deliver high-quality solutions that met business needs- Wrote clean, efficient, and well-documented code, following best practices and industry standards- Contributed to the improvement of development processes and procedures, including code reviews and testing- Actively participated in daily stand-up meetings, sprint planning, and retrospectives to maintain clear communication and alignment within the team Show less

    • Ziff davis

      Sept 2023 - now
      Full-stack developer

      Contracted through InAllMedia

  • Licenses & Certifications