Architecture for scale

System designs that hold up under heavy, unpredictable load, from the first thousand users to millions.

  • Horizontal scaling and stateless service design
  • Caching, data partitioning and read/write separation
  • Asynchronous, event-driven processing with queues and streams
  • Multi-region deployments that scale and operate independently

Tools and patterns: Distributed systems, Microservices, Event-driven architecture, CQRS, Saga pattern

Web applications and APIs

Secure, maintainable web applications and APIs built on current .NET, including .NET 11 and .NET 10 LTS.

  • Requirements discovery with stakeholders and product owners
  • Server-rendered and API-driven applications
  • API design, versioning, documentation and gateways
  • Accessible, responsive interfaces

Tools and patterns: C#, .NET 11, .NET 10 LTS, ASP.NET Core, Entity Framework Core, REST and OpenAPI, JavaScript

Performance and reliability

Find and remove bottlenecks before your users do, and keep systems running through traffic spikes and failures.

  • Load and stress testing against realistic peak traffic
  • Profiling and database query tuning
  • Autoscaling, retries, circuit breakers and graceful degradation
  • Monitoring, logging and alerting

Tools and patterns: Load testing, Profiling, Query optimization, Observability, Autoscaling

Cloud platforms

Design, migration and operation of applications on Microsoft Azure and AWS, sized for real demand and cost.

  • Cloud architecture and migration planning
  • Serverless and managed application hosting
  • High-throughput messaging and event streaming
  • Right-sizing and cost optimization

Tools and patterns: Azure Functions, Azure App Service, Service Bus, Event Hubs, API Management, Azure Storage, AWS

Modernization

Move aging systems to modern, cloud-ready platforms one piece at a time, without stopping the business.

  • Breaking monoliths into independently deployable services
  • Separating shared databases and storage
  • Upgrades from .NET Framework, and from .NET 8 and .NET 9 (out of support since November 2026), to .NET 10 LTS or .NET 11
  • Incremental cutover plans that limit downtime

Tools and patterns: Incremental migration, Microservices, .NET 10 LTS, .NET 11, SQL Server, PostgreSQL

DevOps and code quality

Automated builds, tests and deployments so changes ship often and safely.

  • CI/CD pipelines
  • Automated testing and code coverage
  • Static analysis and quality gates
  • Agile delivery with documented handoff to your team

Tools and patterns: Azure DevOps, GitHub Actions, Git, SonarQube, Scrum

Technologies

Languages and frameworks
C#, .NET 11, .NET 10 LTS, .NET Framework, ASP.NET Core, Entity Framework Core, JavaScript, HTML and CSS
Architecture
Microservices, Event-driven design, CQRS, Saga pattern, Multi-region deployment, Caching and partitioning
Cloud
Azure Functions, Azure App Service, WebJobs, Service Bus, Event Hubs, API Management, Azure Storage, AWS
Data
SQL Server, PostgreSQL, Azure Storage tables and blobs
Delivery
Azure DevOps, GitHub Actions, Git, SonarQube, Scrum

Classification codes

NAICS and PSC codes registered in SAM.gov
TypeCodeDescription
NAICS (primary)541511Custom Computer Programming Services
PSCDA01IT and Telecom: Business Application/Application Development Support Services (Labor)

GraphNode Tech LLC is a small business under the SBA size standard for NAICS 541511, as represented in its SAM.gov registration.