Hernán Lozano

Project Lead Developer at Tribute
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Contact Information
us****@****om
(386) 825-5501
Location
Argentina, AR
Languages
  • English Native or bilingual proficiency
  • Spanish Native or bilingual proficiency

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5.0

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Felipe Espósito

Hernan is one of the best engineers I had the pleasure to work with. He is someone you can always depend on to take the right architectural decisions and to build software with the highest robustness and quality standards. His attention to detail is impressive and he is super focused on the task at hand, delivering high quality results every time. It's been great working with him and I hope we can work together again in the future!

Pablo Gabriel Celayes

During our time working together, Hernán showed impressive problem solving and learning skills, always eager to move out of his comfort zone to push the project forward. He was not only a proficient web developer, but also didn't hesitate in changing hats and doing database, sysadmin and even some frontend work when it was so required. On top of all his technical excellence, Hernán was a fun and easygoing colleague, always open for collaboration and all in all making my time at Infoxel a very pleasant experience.

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Experience

    • United States
    • Technology, Information and Internet
    • 1 - 100 Employee
    • Project Lead Developer
      • Mar 2019 - Present

      • Refactored logging following 12 factor apps guidelines and structured log fmt. • Fixed important bugs related to timing calculation in video transitions and race conditions with the checkout process. • Upgraded general infraestructure by dockerizing both docker deployments, dev environments and poetry for dependency management. • Upgraded to python3, django2. • Organized backlog into sprints and projects. • Addressed Postgresql performance issues and monitoring alerts. • Architected the Firebase backend for a nobel flutter mobile app. • Architected the deprecation of SPA in favor of a Django + HTMX solution. Show less

    • United States
    • Education Administration Programs
    • 1 - 100 Employee
    • Full-stack Python and Javascript Developer
      • Mar 2018 - Mar 2019

      Developed a framework for creating services to processes Amazon Kinesis events emitted by the e-learning platform, so that multiple distributed apps can make use of it and comunicate through messages. The api ended up being very similar to Flask’s. Dockerized several projects for development with docker-compose. Developed a framework for creating services to processes Amazon Kinesis events emitted by the e-learning platform, so that multiple distributed apps can make use of it and comunicate through messages. The api ended up being very similar to Flask’s. Dockerized several projects for development with docker-compose.

    • Argentina
    • Software Development
    • 1 - 100 Employee
    • Fullstack Python and Javascript Developer
      • Feb 2014 - Mar 2018

      SAM (through Machinalis) August 2017 – March 2018: Fullstack Python Developer Python 3, Django REST Framework, Postgresql, Celery, Elasticsearch, Docker, Jira, Github. A project from Red Hat for the argentinean migrations agency that ingest huge amounts of data from different databases with different structures and merges them into a single model easily consumable by users that need to extract information / patterns / connections / events from that data. • Improved Elasticsearch indexing time by paralelizing the process with celery tasks, removing unnecessary queries and db indexes. • Refactored the “saved searches” feature to skip the postgres database and run a ES query instead, improving response time and reducing the amount of code. • Designed the “similarity search” feature to identify db rows that could be accidental duplicates or clones. DivvyHQ (through Machinalis) January 2014 – August 2017: Fullstack Python Developer Python 2, Django Tastypie, Postgresql, BackboneJS, MarionetteJS, Celery, Ansible, Jenkins, Github, Sass, Bootstrap, ES6, Jira. Kansas City startup (divvyhq.com) which builds a SPA platform to help marketing teams organize their campaigns and coordinate their content creation workflows. • Create django forms, views, models and data migrations, create API endpoints using Tastypie. • Refactored mocks and unit tests into integration tests. • Refactored and denormalized several models into a Postgresql’s table view that paid off lots of technical debt. • Designed the frontend architecture of the MarionetteJS SPA, to use controllers and dummy views and integration tests for views. • Debugged memory leaks from BackboneJS views. • In 2016, I relocated in Kansas City MO, USA for 6 months for a knowledge transfer programme, working from the client’s offices. Show less

    • Argentina
    • Advertising Services
    • 1 - 100 Employee
    • Python/PHP programmer / Linux sysadmin
      • Jun 2013 - Nov 2013

      June 2013 – November 2013: Fullstack Django Developer / Sysadmin Django, Python, Jquery, PHP, Nginx, MySQL, Linux. Infoxel (infoxel.com) records multiple TV channels to extract ad clips (using manual and automatic detection) for audition and analysis purposes. • Developed and maintained the web platform used for manually cliping ads. • Maintained the Linux servers infraestructure (recording and detection pipeline) up and running, automated mainenance scripts and alerts with python and cron jobs. Show less

    • Fullstack PHP / Javascript Developer
      • Jun 2011 - Dec 2012

      Dequo Web Systems June 2011 – December 2012: Fullstack PHP / Javascript Developer OSCommerce, Jquery, PHP, Nginx, MySQL, DotProject. An PHP shop, focused on small to medium scale websites (dequo.com.ar) • Developed and maintained small to medium sites of all kinds like CMS, e-commerce, online ticketing systems, forums, brochureware, among many other, using a custom made web framework. Dequo Web Systems June 2011 – December 2012: Fullstack PHP / Javascript Developer OSCommerce, Jquery, PHP, Nginx, MySQL, DotProject. An PHP shop, focused on small to medium scale websites (dequo.com.ar) • Developed and maintained small to medium sites of all kinds like CMS, e-commerce, online ticketing systems, forums, brochureware, among many other, using a custom made web framework.

Education

  • Universidad Tecnológica Nacional
    Bachelor's degree, Tecnicatura Superior en Programación
    2010 - 2012
  • Santo Tomas de Aquino
    Economics, Associate degree
    2005 - 2008

Community

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