Senior DotNET Developer - Child Support Management System Hybrid - US

Senior DotNET Developer - Child Support Management System

Full Time • Hybrid - US
Senior .NET Developer – CSMS (Child Support Management System)

Job Summary:

We are seeking an experienced Senior .NET Developer to join the CSMS modernization team. You will design, develop, and maintain mission-critical microservices and applications that support child support case management operations. The role requires strong experience in microservices architecture — building, deploying, and maintaining loosely coupled, independently deployable services. Your work will span web application development, REST API services, batch processing, and system integrations within a cloud-native environment.

Consultants may be eligible to telecommute for more than 50% of their work hours, up to and including 100% remote work. Telecommuting arrangements require direct manager approval and are subject to change based on program needs. Consultants approved for 100% remote work must attend monthly in-person meetings at the Albany office and be available for major milestone meetings as needed.

Key Responsibilities:

  • Design, develop, and maintain microservices using ASP.NET Core, following domain-driven design and service decomposition best practices
  • Build and deploy loosely coupled, independently deployable services with well-defined API contracts
  • Develop scalable web applications, RESTful APIs, background/worker services, and integration services for the application platform
  • Develop and optimize batch and scheduled jobs (Hangfire, Quartz.NET, or Azure Functions) for high-volume data processing, reporting, and scheduled workflows
  • Implement data access layers using Entity Framework Core against SQL Server or PostgreSQL databases
  • Manage inter-service communication patterns including synchronous REST calls and asynchronous messaging
  • Collaborate with architects and business analysts to translate requirements into technical solutions
  • Participate in code reviews, enforce coding standards, and mentor junior developers
  • Troubleshoot application issues and provide timely resolutions across distributed microservices
  • Contribute to CI/CD pipeline improvements and deployment automation for microservices
  • Write unit and integration tests to ensure code quality and reliability
  • Work with cross-functional teams on system integration efforts including third-party and inter-agency data exchanges
Mandatory Qualifications:

  • 7+ years of professional .NET development experience
  • Strong proficiency in C# and .NET 8 (records, pattern matching, async/await, minimal APIs, latest language features)
  • Proven experience designing and building microservices architectures — service decomposition, API gateway patterns, service discovery, and distributed configuration
  • Extensive experience with ASP.NET Core and the .NET ecosystem (Web API, MVC, dependency injection, middleware, Identity)
  • Hands-on experience with batch/background processing frameworks (Hangfire, Quartz.NET, or Azure Functions) for large-scale processing
  • Solid understanding of Entity Framework Core for ORM and database interaction
  • Experience with SQL Server, PostgreSQL, or similar relational databases
  • Proven track record of building and consuming RESTful APIs with proper versioning and contract-first design
  • Experience with inter-service communication patterns (REST, messaging queues, event-driven)
  • Experience deploying and operating microservices on Azure (App Service, AKS, Azure SQL, Blob Storage, Service Bus, Azure Functions) or AWS equivalents
  • Familiarity with CI/CD tools (Azure DevOps, GitHub Actions, Jenkins, or similar) for microservices deployment pipelines
  • Strong understanding of software design patterns, SOLID principles, and clean code practices
  • Experience with Git version control and collaborative development workflows
  • Understanding of distributed system concerns: fault tolerance, circuit breakers, retries, and observability
Desirable Qualifications:

  • Experience with government or public sector projects
  • Hands-on experience with microservices patterns such as saga, CQRS, event sourcing, and API composition
  • Familiarity with service mesh technologies
  • Experience with containerization (Docker) and orchestration (Kubernetes/AKS) for microservices deployment
  • Knowledge of message-driven architecture (Azure Service Bus, RabbitMQ, Kafka) for asynchronous inter-service communication
  • Knowledge of API gateway solutions (Azure API Management, Ocelot, YARP)
  • Experience with centralized logging and distributed tracing across microservices (Application Insights, Serilog, Splunk, Datadog, OpenTelemetry)
  • Knowledge of infrastructure-as-code (Terraform, Bicep, ARM templates)
  • Understanding of OAuth2/OpenID Connect for securing microservices (Azure AD / Entra ID, IdentityServer, Duende)
  • Knowledge of database-per-service patterns and database migration tools (EF Core Migrations, FluentMigrator, etc.)

Flexible work from home options available.

Compensation: $65.00 - $75.00 per hour




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