Point Of Sale Developer

TEKsystemsBethesda, OH
$55 - $75Hybrid

About The Position

We are seeking a strong Backend Developer to design, build, and scale high-performance data integration pipelines and serverless backend services within a modern Azure-based architecture. This role will focus on developing reliable, high-throughput REST APIs, automating ETL/ELT workflows, and optimizing complex relational database layers to support seamless data movement across enterprise systems. The ideal candidate will have deep experience with C#/.NET, Azure Functions, advanced SQL, RESTful web services, and enterprise data integration. This is a highly impactful role supporting backend systems that power digital ordering, POS platforms, analytics, and real-time operational decision-making.

Requirements

  • 4+ years of professional backend development experience with C#/.NET.
  • Hands-on experience building decoupled, maintainable enterprise backend services.
  • Strong experience with Microsoft Azure, specifically serverless architecture and Azure Functions.
  • Advanced SQL skills, including complex query writing, stored procedure development/debugging, and index tuning.
  • Experience designing and developing RESTful web services.
  • Proven experience building ETL/ELT pipelines and integrating disparate enterprise systems.
  • Strong understanding of performance optimization, concurrency, caching strategies, and data serialization.
  • Experience working in CI/CD environments.

Nice To Haves

  • Experience working with Point of Sale (POS) systems or POS analytics platforms.
  • Experience in hospitality technology, retail, restaurant, airport, or other high-volume transaction-based environments.
  • Familiarity with Azure Application Insights, Azure DevOps, and GitHub Actions.
  • Experience supporting real-time digital ordering, transaction processing, or enterprise reporting platforms.

Responsibilities

  • Design, build, and maintain scalable backend services using C#/.NET.
  • Develop and support serverless applications using Azure Functions, including HTTP and Timer bindings.
  • Build high-throughput RESTful APIs to support enterprise system integrations.
  • Create, automate, and optimize ETL/ELT data pipelines across multiple business-critical platforms.
  • Write, tune, and troubleshoot complex SQL queries, stored procedures, indexes, and relational database performance issues.
  • Support data movement across POS, digital ordering, analytics, and enterprise application environments.
  • Implement scalable backend solutions with a focus on concurrency, caching, data serialization, and performance optimization.
  • Collaborate with business and technical stakeholders to understand integration needs and deliver reliable backend solutions.
  • Support CI/CD deployment processes using tools such as Azure DevOps and/or GitHub Actions.
  • Monitor application health and performance using Azure monitoring tools, including Application Insights.

Benefits

  • Medical, dental & vision
  • Critical Illness, Accident, and Hospital
  • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
  • Life Insurance (Voluntary Life & AD&D for the employee and dependents)
  • Short and long-term disability
  • Health Spending Account (HSA)
  • Transportation benefits
  • Employee Assistance Program
  • Time Off/Leave (PTO, Vacation or Sick Leave)
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