GilteqGilteq

Enterprise Software

Production-grade systems built to last. We design and deliver custom enterprise applications using ASP.NET Core, C#, and cloud-native architecture.

ASP.NET CoreC#RazorSQL ServerAWSREST APIs

Most enterprise software projects fail not because of bad intentions but because of bad foundations. Ambiguous requirements get committed to code, technical debt accumulates faster than the team can repay it, and what starts as a manageable system becomes something nobody fully understands.

We work differently. Before we write production code, we spend time understanding the system — its constraints, its users, its failure modes. What we deliver is software that works today and can be changed tomorrow.

What We Deliver

Custom Application Development

We build production-grade applications from the ground up using ASP.NET Core, C#, and modern web frameworks. Clean architecture, testable code, and documentation that does not rot.

Legacy System Modernisation

We assess existing codebases, identify the highest-risk components, and systematically modernise them without halting the business. Strangler fig patterns, incremental rewrites, zero drama.

API Design and Integration

REST and GraphQL APIs built for longevity — versioned, documented, and secure. We also handle integration with third-party platforms, payment providers, and internal services.

Backend Systems and Data Layers

High-throughput backend services, event-driven architectures, and reliable data pipelines. We have worked across SQL Server, PostgreSQL, and cloud-native data stores.

ASP.NET Core and Razor

Deep experience with ASP.NET Core C# including Razor for server-rendered applications. We know where the framework helps you and where it gets in the way.

Cloud-Native Deployment

Applications built to run on AWS, Azure, or GCP from day one. Infrastructure as code, containerised workloads, and CI/CD pipelines configured before the first release.

Who This Is For

  • Companies with legacy .NET or Java systems that are slowing down the team
  • Organisations building new internal platforms or client-facing enterprise products
  • Businesses that need a reliable engineering partner beyond the initial MVP
  • Teams that have outgrown their current codebase and need architectural support

What to Expect

Every engagement starts with a discovery phase where we map the existing system and agree on scope before any code is written. From there, we work in regular sprints with weekly updates and a shared backlog you can see at any time.

We do not disappear for three months and return with something you did not ask for. Visibility and communication are built into how we work, not offered as an add-on.

Ready to talk about your system?

Whether you are starting from scratch or need to untangle an existing codebase, we can help. Start with a discovery call and we will tell you honestly what we see.