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Daniel Luna

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Senior Full Stack Engineer | Ruby on Rails | React.js | Docker | Redis | Sidekiq | AWS | GCP | Python | Pandas | SQL | OSCP
Sรฃo Paulo, State of Sรฃo Paulo, Brazil
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Jobs verified_user 0% verified
  • Adquick
    Senior Full Stack Engineer | Ruby on Rails
    Adquick
    Nov 2019 - Current (7 years)
    - Works under an international contract with global teams, communicating daily in English in a collaborative and agile environment
    - Delivers a robust data pipeline that processes several terabytes of mobile location data per day using Python, R, Google BigQuery and Ruby on Rails, integrating advanced analytics into backend systems
    - Develops and fine-tunes marketing attribution algorithms to match OOH impressions to web, mobile and in-store conversions, applying statistics and data engineering principles to optimize advertising ROI through an automated leads/sales lift algorithm
    - Implements automated campaign planning features by integrating multiple external data vendors, enhancing scalability and performance
    - Contri
  • BairesDev
    Senior Backend Engineer | Ruby on Rails
    BairesDev
    Jan 2018 - Nov 2019 (1 year 11 months)
    - Remote international experience collaborating with multicultural teams and clients across different time zones, communicating daily in English and following agile practices
    - Launched a foundational fintech product, developing the backend for a new credit card as the first hire for the project using Ruby on Rails, MySQL and PostgreSQL with Citus
    - Built and maintained CI/CD pipelines to automate testing and deployment, ensuring scalability and reliability
    - Delivered an MVP under an aggressive deadline while improving legacy application support and overall system stability
    - Implemented new features and JSON-API integrations, tuning performance and enhancing user experience across existing systems
  • Stack Builders
    Senior Full Stack Engineer | Ruby on Rails | Node.js | React.js
    Stack Builders
    Nov 2015 - Jan 2018 (2 years 3 months)
    International remote experience collaborating with global teams and clients, communicating daily in English. Contributed to three international projects:

    - Developed a real estate web application using Ruby on Rails, Node.js, TypeScript, React.js, RSpec, and Capybara, applying TDD principles to ensure code quality, maintainability, and scalability
    - Worked on a digital marketing platform focused on ads automation and optimization, collaborating with cross-functional teams using agile practices such as pair programming and daily stand-ups
    - Built and maintained an insurtech marketplace connecting landlords and tenants, emphasizing performance, usability, and system reliability
  • Dimagi
    Android Developer
    Dimagi
    Jan 2015
    - Worked as a mobile developer on their Android/J2ME app, leading the complete UI redesign to align with Androidโ€™s Material Design guidelines
  • Guiabolso
    Software Developer
    Guiabolso
    Jan 2014 - Jan 2015 (1 year 1 month)
    - Developed the platform using the Grails framework, leading the creation of a financial health index that classified millions of users based on their spending habits
  • Itaรบ BBA
    Algorithmic Trading Developer
    Itaรบ BBA
    Nov 2012 - Jan 2014 (1 year 3 months)
    - Developed algorithmic trading strategies in C#, optimized existing strategies, and integrated third-party order entry and market data systems
  • P
    Software Developer
    PostRelease
    Jun 2011 - Nov 2011 (6 months)
    - Developed in C#/.NET, Java/Lucene, and PHP. Optimized the ad classification engine and implemented new features for the website
Education verified_user 0% verified
  • USP Universidade de Sรฃo Paulo
    Bachelor's degree, Computer Engineering
    USP Universidade de Sรฃo Paulo
    Jan 2007 - Jan 2012 (5 years 1 month)
Projects (professional or personal) verified_user 0% verified
  • S
    Spacemacs
    Spacemacs is a new way to experience Emacs, a sophisticated and polished setup focused on ergonomics, mnemonics, and consistency.
  • C
    Commcare-ODK
    CommCare is an open-source, easily customizable mobile platform that supports frontline workers in low-resource settings. By replacing paper-based forms, it enables them to track and assist clients through registration forms, checklists, SMS reminders, and multimedia tools.
  • S
    Sentiment Analysis Methods for Portuguese Tweets
    Jul 2011 - Nov 2011 (5 months)
    Develop a sentiment classifier for Portuguese tweets to categorize them as "happy", "sad", or "neutral", using three different methods: n-gram analysis, POS tagging, and the LIWC sentiment dictionary.
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