Add skilled .NET developers to your team to build new features, modernise legacy systems or support your applications, with flexible monthly contracts.
Developers experienced in C#, ASP.NET Core, APIs and SQL Server.
Dedicated, part-time or full-team options billed monthly.
A team covering US and UK working hours for easy real-time communication.
Portals, dashboards and SaaS products built on ASP.NET Core.
Secure REST APIs and integrations with payments, CRMs and ERPs.
Maintenance and improvements for WebForms and .NET Framework applications.
Cloud-native .NET applications on Azure with CI/CD.
Daily updates, sprint demos and one point of contact.
Code reviews and automated tests for reliable releases.
Tell us what you need and we will propose .NET developers who match your project, tech stack and budget.
Our .NET developers work on a wide range of business software:
Portals, dashboards, ERPs and CRMs built around your workflows.
Fast, secure back ends for React, Angular and Flutter applications.
Old .NET applications upgraded to modern, supported .NET.
Three Circle is an ASP.NET development company based in Texas and the UK. Our developers combine strong .NET skills with clear communication, so you get reliable progress without the hiring overhead.
Engineers who build and maintain production ASP.NET Core applications.
Dedicated, part-time or full-team models, adjusted monthly.
Maintenance and improvements after launch.
Designers, mobile developers and QA when you need them.
Regular demos, clear reports and honest estimates.
Clear sprints and milestones keep your project moving.
Hire experienced .NET developers from Three Circle to build, modernise or support your applications. Our ASP.NET Core developers work as part of your team or as a complete managed team, based in Texas and the UK for easy communication across US and UK time zones. You get skilled engineers, clear reporting and full ownership of your code.
Web applications, portals and REST APIs built with C# and ASP.NET Core. See our ASP.NET development services.
ASP.NET Core back ends with React or Angular front ends.
Azure App Service, Functions, SQL and DevOps pipelines for scalable, secure hosting.
APIs and admin panels for Flutter, iOS and Android apps.
Maintain WebForms and .NET Framework systems or move them to modern .NET with our .NET migration services.
Automated testing, CI/CD and monitoring to keep releases reliable.
A full-time developer working only on your project, billed monthly. Ideal for long-term product development.
A set number of hours each month for maintenance, smaller features or support.
Developers, QA and a project manager working together as your extended team.
A clearly scoped project delivered for an agreed price and timeline.
Want a quick budget? Try our cost calculator or request developer profiles.
For a growing organisation we built a complete HR management platform: a web admin dashboard (React and Angular) for employee records, attendance and office operations, a Flutter mobile app for attendance and leave requests, and an ASP.NET Core API behind both. Result: more than 5,000 active users.
Sport Betting IQ lets fans track their favourite sports, follow real-time scores and get intelligent insights. We built it with Flutter, an ASP.NET Core back end and AI features powered by a large language model (LLM).
School3 streamlines campus operations from one centralised admin dashboard: automated attendance, fee tracking and academic reporting. We built the web interfaces with React and Flutter Web on top of a secure .NET back end.
Want results like these? Tell us about your .NET project and get a free consultation.
Tell us about your project, tech stack and team size. We share suitable developer profiles, you interview them, and once you are happy they join your project.
It depends on experience level, hours and contract length. Contact us for current rates, or try our cost calculator for project budgets.
Yes. You can interview developers and ask technical questions before they start.
Our team covers both US and UK time zones and arranges overlapping working hours so you can communicate in real time.
Yes. All code and intellectual property created for your project belong to you, and we sign an NDA on request.
Yes. You can add or reduce developers on a monthly basis as your project changes.
Yes. Our developers join your tools, stand-ups and processes, or we provide a fully managed team if you prefer.
Yes. We maintain WebForms and .NET Framework applications and can plan a step-by-step move to modern .NET when you are ready.
From startups to enterprises, we deliver innovative software, web, and marketing solutions designed to drive growth and long-term success.