Senior Backend Developer (.Net)

Your day-to-day activities:

• Own the design, architecture, and delivery of backend services and APIs using C# and .NET
• Drive backend technical direction, including service design, data modeling, and infrastructure decisions
• Ensure production reliability through monitoring, alerting, debugging, and incident resolution
• Design systems that are scalable, maintainable, and aligned with business goals
• Collaborate with frontend engineers and product stakeholders to deliver end-to-end solutions
• Lead code reviews and enforce engineering best practices across the team
• Mentor engineers and elevate overall team capability and standards
• Identify and resolve performance bottlenecks and system inefficiencies
• Contribute to and improve CI/CD pipelines and deployment processes
• Actively participate in architectural discussions and technical roadmap planning
• Own services in production, including monitoring, alerting, and incident response

You’re a perfect match if you have:

• 5+ years of backend engineering experience with demonstrated ownership of systems.
• Expert-level proficiency in C#, .NET, and ASP.NET Core, including designing and building Web APIs and Minimal APIs.
• Strong experience with Entity Framework Core and advanced LINQ.
• Extensive experience with relational databases (MSSQL), including performance tuning and query optimization.
• Hands-on experience with message brokers such as RabbitMQ for building event-driven and asynchronous systems.
• Deep experience designing and implementing complex system integrations across multiple platforms.
• Strong proficiency in RESTful API design, API versioning, and contract management.
• Extensive experience integrating with Salesforce APIs, including object modeling, data synchronization, workflow automation, and heavy third-party system integration scenarios.
• Strong understanding of Salesforce data structures, including standard and custom objects, relationship mapping, authentication flows, and API limitations.
• Strong understanding of API security, including OAuth flows, token management, rate limiting, access control, secure data exchange, and data protection strategies.
• Strong experience with Azure (preferred), AWS, or Google Cloud.
• Experience with Docker and cloud-native services such as App Services, Functions, and related platform capabilities.
• Proven experience building and maintaining CI/CD pipelines using Azure DevOps, GitHub Actions, or Jenkins.
• Strong experience with unit and integration testing (xUnit, NUnit, or similar).
• Deep understanding of authentication and authorization (OAuth, OpenID Connect, JWT).
• Strong English communication skills (upper-intermediate or higher).
• Availability to work Eastern Standard Time (EST) from 8:00 AM to 12:30 PM

• Experience integrating with healthcare platforms such as Athenahealth.
• Familiarity with healthcare data standards, payer/provider workflows, or regulated environments.
• Familiarity with Infrastructure as Code using Terraform, ARM, or Bicep