Oglasi za posao Medior Backend Developer

10 izvršilaca

Medior Backend Developer

Codonix d.o.o.

Beograd

online intervju

Beograd: Hercegovačka 17 Savski Venac

17.04.2026.

PHP AWS PostgreSQL Redis RabbitMQ Symfony intermediate

Location: On-Site
Employment Type: Full-Time

About Us

We are a team dedicated to building innovative digital products with a strong focus on user experience. Our goal is to create high-performance systems that deliver seamless and engaging experiences to our users.

We are looking for a Mid-Level Backend Developer to help us deliver features and maintain high-quality, scalable backend applications.

What Makes This Role Interesting

  • Contribute to building high-quality, production-grade backend applications
  • Work alongside senior developers and technical leads
  • Gain exposure to payment workflows and centralized logging with Graylog
  • Opportunity to grow into ownership and architecture responsibilities over time

Responsibilities

  • Build and maintain PHP / Symfony applications
  • Implement and optimize queries in PostgreSQL
  • Work with job and queue systems using Supervisor, Redis and RabbitMQ
  • Contribute to application integration and deployment on AWS
  • Develop 3rd party integrations (REST APIs, optionally payment providers)
  • Participate in code reviews and debugging
  • Apply best practices in testing, documentation and development
  • Ensure applications are performant, reliable and maintainable

Requirements

  • 3–4 years of experience in PHP, preferably with Symfony Framework and Doctrine ORM
  • Experience with PostgreSQL, including query optimization and basic migration management
  • Hands-on experience with Redis and RabbitMQ
  • Practical knowledge of Supervisor or similar process management tools
  • Familiarity with AWS services (EC2, S3, RDS, Lambda, etc.)
  • Strong problem-solving, analytical, and research skills
  • A responsible, collaborative team player with good communication skills

Nice to Have

  • Experience with 3rd party integrations, including payment providers
  • Familiarity with Graylog or similar logging systems
  • Knowledge of Docker and Kubernetes
  • Familiarity with Jira
  • Experience with microservice-based architectures
  • Knowledge of Go Lang
Apply Here

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