SQ
Sq

Senior Backend Developer

ExperiencedFull-time
Timisoara, Romaniavia Sq CareersPosted Feb 19, 2025
Match with my CV

Technical skills

TypeScriptJavaScriptAngularNode.jsGraphQLAPI developmentSQLNoSQLData engineeringCI/CD

About this role

Senior Backend Developer

Position Overview

We are looking to expand our talented team with an experienced Senior Backend Developer. In this role, you will be responsible for developing and maintaining high-performance backend services and APIs. You will work closely with cross-functional teams to design, build, and optimize scalable solutions while ensuring the highest standards of security and code quality.

Responsibilities

  • Design, develop, and maintain efficient, reusable, and reliable Node.js backend applications and APIs
  • Optimize applications for maximum speed, scalability, and performance
  • Collaborate with cross-functional teams to ensure seamless integration between frontend and backend services
  • Debug, troubleshoot, and resolve complex software issues
  • Estimate time for tasks/modules based on different estimation techniques
  • Ensure the security and integrity of applications through best practices and compliance standards
  • Implement and maintain database schemas, queries, and performance tuning
  • Work with CI/CD pipelines to streamline deployment and improve development workflows
  • Stay up to date with emerging technologies, frameworks, and best practices

Requirements

  • 5+ years of proven experience as a backend developer with Node.js
  • Strong proficiency in JavaScript and TypeScript
  • Extensive experience with Node.js frameworks such as Express.js or Nest.js
  • Solid understanding of asynchronous programming, event-driven architecture, and microservices
  • Proficiency in SQL and database schema design (e.
  • g., PostgreSQL, MySQL) as well as NoSQL databases (MongoDB, Redis, etc.)
  • Experience with RESTful API design and development, along with GraphQL knowledge being a plus
  • Strong understanding of service-based/component-based architecture
  • Hands-on experience with Docker and containerized applications
  • Familiarity with message queues (RabbitMQ, Kafka) and event-driven architecture
  • Proficiency with code versioning tools like Git
  • Strong analytical and problem-solving skills with the ability to work independently and within a team

Nice to Have

  • Experience with Azure DevOps
  • Exposure to DevOps practices, infrastructure as code (Terraform, Ansible), and monitoring tools
  • Understanding of front-end technologies (Angular) for collaboration purposes

Before you apply

  • 1Which parts of your CV prove experience with TypeScript, JavaScript, and Angular?
  • 2Which recent work examples would make your application stronger for this role?
  • 3What details from the original source listing should you confirm before applying?

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