Raphael Quintanilha Dos Santos Email & Phone Number

Auckland, Auk, Nz

Auckland, Auk, Nz

Auckland, Auk, Nz

EcoPortal is a health and safety risk management platform that engages people and supports best practices.

Auckland, Auk, Nz

Development using Ruby on Rails, Graphql, AngularJs, ElasticSearch and MongoDB in a security-constrained and highly complex environment.Refactoring of the permissions module.Led the development of a new deployment pipeline and platform architectural redesign.

Rio De Janeiro, Rj, Br

Qconcursos is an educational SaaS, focused on helping students to achieve their goals in public exams. Consolidated as one of the top EdTechs in Brazil with more than 3 million active users monthly and over 280K paid subscribers.Active participation in the design of the development/product process during the transition from waterfall to squads.Responsible for overseeing the infrastructure with 99.5% availability.Migrate over 70k videos from Vimeo to Cloudflare Stream in less than three days without unavailability.Redesign of the main platform search, focusing on building the base for a new set of features and improving response time/capacity. Designed an ingestion pipeline for the generation of statistics from a collection with 2 billion rows and 45 million new inserts per month.

Rio De Janeiro, Rj, Br

Implemented a monitoring pipeline using ElasticStack (ElasticSearch, Kibana, Beats and Logstash) capable of supporting infrastructure with peaks of 15k requests per minute. Capacity planning and cost optimization of the cloud infrastructure, reducing the costs by 31% (5.500 USD per month) in a fast-growing environment.Hands-on diagnosis of production issues.

Rio De Janeiro, Rj, Br

Built, implemented and maintained back-end services using Ruby on Rails and NodeJs, demonstrating service-oriented architecture and focus on the client’s needs.Active participation in the architectural redesign of the platform, introducing microservices.Directly responsible for the new checkout implementation, with peaks of more than 50k orders per month. Implemented a complex cache layer using Cloudflare and Russian doll for a platform with over 400 million requests per month.

Athletitrack is a platform focused on athlete data management to improve performance

Rio De Janeiro, Br

Moccato is an online coffee signature club focused on national coffee. The company operates buying coffee from local producers, roasting and grinding the grains and sending for coffee lovers.

Niterói, Rio De Janeiro, Br

Gridclass is an educational platform focused on helping school managers to generate optimized school timetables. Developed & maintained features in the Python Backend API.Responsible for transcribing requirements into actionable tasks. Responsible for overwatching the infrastructure.

Niterói, Rio De Janeiro, Br

Led the development of the new frontend, focusing on solving a huge performance problem resulted from the highly interactive nature of the application, with the worst-case scenario reduced from 4 minutes to 10 seconds.

Niterói, Rio De Janeiro, Br

Brasília, Df, Br