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Davis – React, Ruby, Python, experts in Lemon.io

Davis

From Brazil (GMT-3)

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Front-end Web DeveloperSenior
Back-end Web DeveloperMiddle-to-senior
Hire developer
25 years of commercial experience
AI
Banking
Beauty
Consumer services
Credit and lending
E-commerce
Edtech
Fintech
Gambling
Govtech
Healthtech
Music and audio
Networking
Real estate
Social impact
Sports
Lemon.io stats

Davis – React, Ruby, Python

Davis exemplifies a versatile skill set spanning various technologies, with extensive expertise in React.js, Python, Ruby-on-Rails and a background in architectural decision-making. His previous leadership roles and engagement in start-ups underscore adept communication skills and effective management of complex systems. Davis excels in problem-solving and demonstrates proficiency in technical issues. Additionally, his humble and clear communication style fosters positive experiences, reflecting adaptability and collaborative prowess.

Main technologies
React
8 years
Ruby
16 years
Python
10 years
AWS
5 years
Django
5 years
Ruby on Rails
16 years
Additional skills
GCP
PHP
API
Material UI
Typescript
GraphQL
Apollo GraphQL
MySQL
Flask
MongoDB
PostgreSQL
JavaScript
React Native
DevOps
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior Software Engineer II
Feb 2022 - Dec 20231 year 10 months
Project Overview

The product revolutionizes financial management for burgeoning consumer brands through innovative solutions. By consolidating banking, vendor payments, and credit functionalities into a unified, user-friendly platform, it fundamentally transforms how operators oversee their finances.

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Responsibilities:
  • Developed a widget enabling partners to extend credit offerings and generate leads by embedding a small script into their pages;
  • Collaborated with the team to implement a "Buy Now, Pay Later" product, handling both frontend and backend development;
  • Expanded the range of integrated providers used by the application, including accounting and e-commerce integrations;
  • Enhanced the signup and application flow by aligning frontend with new designs and supporting new routes and flows on the backend.
Project Tech stack:
React
Preact
Material UI
Python
Django
API
Monorepo
Senior Software Engineer
Nov 2022 - Dec 20231 year 1 month
Project Overview

Project offers comprehensive solutions for competitor registration optimization, employing predefined algorithms aligned with Olympic regulatory authorities for fair contest judging. This platform excels in efficient data management, facilitating seamless interaction with press agencies, online portals, social networks, and real-time television and digital broadcasts.

This product goes beyond conventional solutions by integrating local network capabilities alongside data center storage, ensuring stable internet connectivity and fortified security measures. Platform seamlessly manages rankings, registers all technical staff participating in the competition, and meticulously optimizes, reviews, and aligns equipment with customer and technical team satisfaction objectives.

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Responsibilities:

Davis achieved the following:

  • Developed innovative algorithms to enhance system functionality;
  • Conducted updates to existing algorithms for improved performance;
  • Identified and resolved bugs and performance issues within the application;
  • Implemented codebase refactoring and optimized server configurations, leading to a significant 70% reduction in monthly costs.
Project Tech stack:
Python
Django
Senior Frontend/React Engineer
Feb 2021 - Feb 20221 year
Project Overview

This is a cutting-edge, user-friendly cash-back application that empowers users to effortlessly earn money while indulging in everyday activities such as shopping, dining out, and refueling at gas stations across a vast network of thousands of merchants and renowned brands spanning the nation. Leveraging innovative technology and strategic partnerships, this application seamlessly connects users with lucrative cash-back opportunities, making saving money an intuitive and rewarding experience.

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Responsibilities:
  • Orchestrated the seamless integration of diverse providers, enriching the system's capabilities and extending its reach;
  • Spearheaded a comprehensive redesign initiative for partners' public pages, optimizing their aesthetics and usability to elevate user engagement and experience;
  • Diligently addressed and resolved bugs while implementing regular maintenance tasks to uphold the reliability and performance of both frontend and backend codebases.
Project Tech stack:
React
Typescript
Apollo GraphQL
GraphQL
Node.js
Tech lead
Apr 2017 - Jun 20172 months
Project Overview

This platform grants users the convenience of scheduling appointments anytime, day or night, with top-tier beauty establishments.

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Responsibilities:

Davis succeded in the following tasks, among others:

  • Led the comprehensive refactoring of the existing search engine, introducing multi-threading and caching solutions to optimize performance, mitigate failures, and expedite search results delivery;
  • Collaborated closely with a cross-functional team to conceptualize, design, and develop a dynamic book widget using AngularJS, ensuring seamless integration with the magazine website;
  • Facilitated the deployment process of the AngularJS book widget, overseeing testing, troubleshooting, and final implementation to ensure a smooth and successful integration with the magazine website's existing infrastructure.
Project Tech stack:
Angular JS
Ruby on Rails
Frontend Engineer
Mar 2016 - Jun 20171 year 3 months
Project Overview

Angi is a platform that connects you with vetted home service pros and helps you find the best prices and book services in an instant. Whether you need routine maintenance, repairs, or renovations, Angi can match you with personalized solutions and cover your projects with Happiness Guarantee.

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Responsibilities:
  • refactored part of the service provider page
  • migrated AngularJS to React
  • built front-end components and UI lib
Project Tech stack:
React
JavaScript
CoffeeScript
Senior Software Engineer
Sep 2012 - Feb 20141 year 5 months
Project Overview

This project revolutionizes network operations for software-centric networking by seamlessly integrating profound network comprehension with cutting-edge distributed systems, cloud technology, data science, and gaming proficiency. With a keen focus on transforming network visibility, enhancing performance, and optimizing response, it facilitates the transition to contemporary network platforms by bridging physical and virtual layers. Primarily targeting enterprise data centers, the team collaborated with top-tier network and infrastructure providers such as VMware (VMW), Cisco Systems (CSCO), Cumulus Networks, among others, to deliver groundbreaking solutions to some of the globe's most expansive private data center operators.

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Responsibilities:
  • Established and upheld the frontend interface for overseeing routers, switches, and assorted CDN and network-related equipment;
  • Innovated by crafting new providers for Puppet, facilitating the integration of a Python client within each equipment unit to optimize tracking and control functionalities;
  • Sustained the Python client's performance and reliability, responsible for data collection within a resource-constrained Linux distribution.
Project Tech stack:
CoffeeScript
JavaScript
Ruby
Ruby on Rails
Python
Lead Software Developer
Jan 2010 - Aug 20107 months
Project Overview

Cyloop® Social was an ad-supported, music-based social media platform that offered “personalized” radio stations and user-curated music playlists and was built using lots of technologies like Ruby and Rails, Tokyo Tyrant/Cabinet, Redis/Resque, MySQL, memcached and Sphinx.

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Responsibilities:
  • Led the Brazilian team (5 developers)
  • Ruby and Ruby on Rails development
  • Front-end development
  • Social network integrations (Twitter and Facebook)
Project Tech stack:
Ruby on Rails
MySQL
DevOps

Languages

English
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