Back End Developer

7 dni temu

Gdansk Metropolitan Area, Polska Luxoft Poland Pełny etat 60 000 zł - 120 000 zł rocznie

Project Description:

We're looking for a Backend Engineer with strong AWS experience to join our growing engineering team. You will be responsible for designing, developing, and maintaining scalable backend systems that power our products and services. The ideal candidate is a hands-on engineer with expertise in Java (Spring Boot) and Python frameworks (such as FastAPI, Flask, or Django), a solid understanding of API design, and strong knowledge of AWS cloud infrastructure and Terraform for Infrastructure as Code (IaC).

Responsibilities:

  • Design, develop, and maintain backend services using Java (Spring Boot) and Python frameworks (FastAPI, Flask, or Django).
  • Build and maintain RESTful and SOAP APIs following best practices in design, performance, and security.
  • Design and optimize data models and queries for DynamoDB, PostgreSQL, and MongoDB.
  • Experience with AWS components such as Cognito, Lambda, API Gateway, EC2, S3, and CloudWatch.
  • Familiarity with Infrastructure as Code using Terraform for deploying and maintaining AWS resources.
  • Collaborate closely with cross-functional teams (Frontend, DevOps, Product) to deliver robust, high-performance backend systems.
  • Ensure code quality, scalability, and maintainability through proper testing, documentation, and clean architecture principles.
  • Participate in design discussions, code reviews, and continuous improvement initiatives.
  • ·Monitor, troubleshoot, and enhance system performance and reliability.

Mandatory Skills:

  • Amazon Cognito
  • Amazon DynamoDB
  • AWS Lambda
  • PostgreSQL
  • Python / Java

Mandatory Skills Description:

  • 5+ years of professional experience in backend development.
  • Strong proficiency in Java/Python with hands-on experience using Spring Boot/ FastAPI, or Django
  • Experience designing and implementing REST and SOAP APIs.
  • Solid understanding and practical experience with AWS services, including:
  • Cognito, Lambda, API Gateway, EC2, S3, CloudWatch, SNS/SQS, etc.
  • Experience with Infrastructure as Code using Terraform.
  • Strong database knowledge:
  • NoSQL: DynamoDB, MongoDB
  • SQL: PostgreSQL/Aurora
  • Experience with CI/CD pipelines, Docker, and containerized environments.
  • Familiarity with microservices architecture and event-driven systems.

Nice-to-Have Skills Description:

  • Familiarity with telecommunications standards and Remote SIM Provisioning concepts.

Languages:

  • English: B2 Upper Intermediate

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