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Senior .NET Developer (Billing Platform) POST NUMBER: 469741

Orlando, FL

Role Overview

  • Contribute to development of a billing/claims platform supporting high-volume transactional systems
  • Build and scale backend services and enterprise applications
  • Improve and evolve existing systems and architecture
  • Design scalable, maintainable, and extensible solutions
  • Participate across the full SDLC , including design, development, testing, and deployment
  • Collaborate cross-functionally to translate business requirements into technical solutions
  • Ensure code quality through test automation
  • Work on complex domain-driven problems and system integrations

Technical Requirements

  • Strong experience with .NET / C#
  • Experience with MS SQL Server and relational databases
  • Background developing service-based / API-driven applications
  • Experience with ASP.NET Core
  • Familiarity with Entity Framework / EF Core
  • API development tools:
    • REST APIs , Swagger, Postman
  • Frontend (SPA frameworks):
    • Angular or React
    • TypeScript, Node.js, Webpack
    • Authentication: OAuth / JWT
  • Architecture & Systems:
    • Microservices architecture
    • Distributed systems
    • High-volume, event-driven / queued workflows
    • Messaging tools (e.g., RabbitMQ )
  • Testing:
    • Unit testing / test automation

Key Traits

  • Strong problem-solving skills
  • Ownership mindset over applications and systems
  • Focus on building high-quality, scalable solutions
  • Continuous improvement mindset
Determining compensation for this role (and others) at Vaco/Highspring depends upon a wide array of factors including but not limited to the individual’s skill sets, experience and training, licensure and certifications, office location and other geographic considerations, as well as other business and organizational needs. With that said, as required by local law in geographies that require salary range disclosure, Vaco/Highspring notes the salary range for the role is noted in this job posting. The individual may also be eligible for discretionary bonuses, and can participate in medical, dental, and vision benefits as well as the company’s 401(k) retirement plan. Additional disclaimer: Unless otherwise noted in the job description, the position Vaco/Highspring is filing for is occupied. Please note, however, that Vaco/Highspring is regularly asked to provide talent to other organizations. By submitting to this position, you are agreeing to be included in our talent pool for future hiring for similarly qualified positions. Submissions to this position are subject to the use of AI to perform preliminary candidate screenings, focused on ensuring minimum job requirements noted in the position are satisfied. Further assessment of candidates beyond this initial phase within Vaco/Highspring will be otherwise assessed by recruiters and hiring managers. Vaco/Highspring does not have knowledge of the tools used by its clients in making final hiring decisions and cannot opine on their use of AI products.
Posted 2026-05-30

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