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VendTech International Logo

Senior Software Engineer (Back-End)

VendTech International

Salary not specified
May 9, 2025
Savannah, GA, US
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The company is looking to build and optimize its .NET Core API and AWS cloud infrastructure to power its Vending Management Software (VMS) and related applications.

Requirements

  • .NET Core (C-Sharp) development experience
  • PostgreSQL, including query optimization and schema design
  • AWS services, particularly ECS, SQS, Lambda, and IAM
  • Event-driven applications using message queues like AWS SQS
  • RESTful API development, authentication (OAuth, JWT), and security best practices
  • CI/CD pipelines, Git, and infrastructure automation
  • Infrastructure as Code (Terraform, CloudFormation, or Pulumi)

Responsibilities

  • Develop & Optimize APIs: Design, build, and maintain .NET Core (C-Sharp) APIs and microservices with a focus on scalability, performance, and reliability.
  • Implement AWS SQS and Lambda functions for asynchronous workflows and real-time processing.
  • Design efficient database schemas and optimize queries for PostgreSQL.
  • Develop solutions that scale horizontally within AWS ECS.
  • Optimize performance through caching strategies, API response tuning, and concurrency management.
  • Implement authentication and authorization using OAuth, JWT, and IAM policies.
  • Write unit, integration, and performance tests to ensure system stability.

Other

  • 8+ years of hands-on back-end development experience
  • Ability to interpret technical documentation and work with industry protocols
  • Work cross-functionally with front-end, DevOps, and product teams to align technical solutions with business needs
  • Debug and resolve complex back-end issues in a distributed environment