R

Rafael Henrique Costa

About

Detail

Federal District, Brazil
Contact Rafael regarding: 
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Full-time jobs
Starting at USD3.5k/month

Timeline

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Job
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Education

Résumé

Jobs verified_user 0% verified
  • Augmedix
    Senior Backend Engineer
    Augmedix
    Aug 2022 - Current (4 years 3 months)
    Designed and implemented scalable microservices architectures using Node.js, TypeScript, NestJS, and Python (FastAPI, Django), improving transaction throughput by 45% while reducing server costs by 25%. Led the migration of legacy systems to cloud-based infrastructures on AWS and GCP, incorporating Lambda, Step Functions, S3, and RDS, ensuring 99.9% uptime and robust disaster recovery protocols. Developed RESTful and GraphQL APIs for internal and external consumption, implementing API versioning, authentication (OAuth2, JWT), and automated unit/integration tests, which improved maintainability and decreased bug reports by 30%. Implemented Redis caching, RabbitMQ messaging, and Postgres/MongoDB optimizations, resulting in a 50% reduction in
  • chegg
    Backend Engineer
    chegg
    Jul 2019 - Jul 2022 (3 years 1 month)
    Built modular backend services using C#, ASP.NET MVC, and Java, supporting real-time patient data processing and billing workflows, which increased system reliability by 35%. Optimized SQL Server and MySQL databases, creating advanced queries and indexing strategies that reduced response times by 40%. Developed frontend dashboards with Angular, Bootstrap, and React, enabling healthcare administrators to monitor KPIs and patient data efficiently. Led a cross-team initiative to implement automated unit, functional, and integration testing, raising code coverage to 85% and reducing post-deployment defects. Designed and integrated secure RESTful APIs for thi
  • M
    Junior Full Stack Developer
    MDI Health
    Sep 2017 - Jun 2019 (1 year 10 months)
    Developed backend modules using Python and Java, enabling automated trading algorithms to process large-scale market data with minimal latency. Integrated non-relational databases (MongoDB, Redis) to handle high-frequency market updates, reducing data retrieval delays by 25%. Implemented unit and automated integration tests, improving reliability and ensuring compliance with industry standards. Collaborated with frontend developers using ReactJS and Angular to provide real-time dashboards for traders, improving decision-making speed. Supported the migration of legacy SQL-based systems to cloud environments, improving scalability and maintainability of trading platforms. Participated in designing messaging systems using RabbitMQ and microser
Education verified_user 0% verified
  • Universidade de Brasília
    Bachelor of Computer Science
    Universidade de Brasília
    Jan 2013 - Jan 2017 (4 years 1 month)