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Diego Aguir Selzlein

Diego Aguir Selzlein

System Analyst

Followers of Diego Aguir Selzlein632 followers
location of Diego Aguir SelzleinCascavel, Paraná, Brazil

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  • Timeline

  • About me

    Always learning, always hungry for more. Currently focusing on building great software and guiding great teams to victory.

  • Education

    • Universidade Tecnológica Federal do Paraná

      2007 - 2010
      Technologist Computer Software Technology/Technician

    • Universidade Tecnológica Federal do Paraná

      2010 - 2011
      Specialist Computer Software Engineering

      Activities and Societies: Requirements Engineering, Software Quality, Object Oriented Systems Design, Unified Software Process, Agile Development Methodologies, Software Configuration Management, Object Oriented Programming Languages and Environments, Software Tests, Software Engineering for Web, Software Projects Management, Design and Execution of Business Process, Research Methodology

  • Experience

    • Cemapa

      May 2008 - Jan 2011
      System Analyst

      Software development with Delphi 7 and Oracle database. User support.

    • Universidade Federal da Integração Latino-Americana (UNILA)

      Feb 2011 - Jan 2016
      IT Analyst

      Software development with Java and Ruby on Rails. Linux systems administration. MySQL and PostgreSQL databases.

    • Helpjuice

      Jan 2016 - Jul 2017
      Lead Ruby on Rails Engineer / CTO

      Lead software engineer responsible for evolving the Helpjuice app. I was hired to rebuild the entire solution, which was outdated and full of issues. In three months we started bringing customers onto the new version, built by myself. I used TDD and kept the entire system as covered with tests as possible, which is the reason why still to this day the bug rate is small and the platform is reliable.

    • CrossOver

      Jul 2017 - Sept 2017
      Ruby on Rails Architect

      Ruby on Rails, Ember, MySQL, SOA.

    • CashCowPro

      Oct 2017 - Jun 2018
      Senior Developer

      Ruby, Rails, Go, Javascript, AWS and Amazon MWS

    • Flight Club

      Jun 2018 - Sept 2019
      Sr Ruby Engineer

      Ruby on Rails, AWS, Postgres, Amazon SQS.

    • Helpjuice

      Jan 2019 - Jun 2020
      Lead Software Engineer

    • Toptal

      Sept 2019 - Apr 2020
      Freelancer

    • Stadium Goods

      Apr 2020 - now

      Working as a senior Rails engineer and tech lead for Stadium Goods, building features in their main ERP and helping with design decisions. Played an important role in designing the new Stadium Goods's fulfillment process.Also working as a tech lead in a new project. Creating documentation, sharing knowledge and guiding other developers.

      • Staff Engineer

        Apr 2023 - now

      • Technical Lead

        Apr 2020 - Apr 2023

    • Desys Finance

      Dec 2023 - now
      Chief Technology Officer

  • Licenses & Certifications