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Back End Developer BR 10

  • Source: LinkedIn
  • Core Code io
  • Remote
  • Rio de Janeiro
  • Full-Time
  • Mid level

Job Description

We are looking for a Backend Developer to design, build, and maintain the server-side logic of our applications. You will be responsible for ensuring high performance, scalability, and security of back-end services while integrating with front-end and third-party systems. This role involves problem-solving, collaboration with cross-functional teams, and delivering reliable APIs and data pipelines.

Responsibilities

  • Design, develop, and maintain back-end services, APIs, and databases
  • Build scalable systems that handle high volumes of requests and data
  • Implement security and data protection best practices
  • Optimize application performance and troubleshoot issues
  • Work closely with front-end developers and other stakeholders to integrate user-facing elements
  • Manage database schemas, queries, and migrations using SQL and/or NoSQL databases
  • Write clean, maintainable, and testable code
  • Contribute to code reviews, system architecture, and technical documentation

Requirements

  • Experience as a Backend Developer, Software Engineer, or in a similar role
  • Proficiency in at least one back-end language and framework such as Node.js/Express, Python (Django/Flask/FastAPI), Java (Spring Boot), or Ruby on Rails
  • Strong knowledge of databases including PostgreSQL, MySQL, MongoDB, or Redis
  • Experience building and consuming RESTful APIs and/or GraphQL
  • Familiarity with cloud platforms such as AWS, GCP, or Azure
  • Experience with containerization tools such as Docker and Kubernetes
  • Strong understanding of system design, scalability, and security principles
  • Familiarity with version control systems and CI/CD pipelines
  • Strong problem-solving and collaboration skills
  • By applying to this position, we’ll create your Simera Professional Key (SPK) — a unique key that helps you connect with employers, stand out, and secure the right match. ✨

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Skills

  • NodeJS
  • Python
  • Django
  • Flask
  • FastAPI
  • Java
  • spring
  • spring-boot
  • ruby
  • rails
  • PostgreSQL
  • mysql
  • MongoDB
  • Redis
  • GraphQL
  • amazon-web-services
  • google-cloud-platform
  • microsoft-azure
  • Docker
  • Kubernetes
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