Custom .NET Development in Pittsburgh

Sierra Experts builds and maintains custom business applications in ASP.NET, C# and .NET, written and supported by the same Pittsburgh team that runs your IT.

Free consultation. Talk with a Sierra Experts engineer about your environment: call sales at 412.722.0707 or book a time.

What we build

  • Internal business applications in ASP.NET and C#: dashboards, workflow and approval tools, scheduling, inventory and reporting systems built around how your team works.
  • Customer and partner portals with secure sign-in, so clients and vendors can check status, submit requests and get documents without a phone call.
  • Integrations and APIs that connect your line-of-business software, Microsoft 365 and databases, so data is entered once instead of copied between systems.
  • Support for existing .NET applications: taking over an application whose original developer has moved on, fixing what is broken and moving older ASP.NET code to current .NET.

Why use your IT provider for development

Most custom software problems show up after launch: servers, backups, security updates, user accounts and knowing how the application works. Because Sierra Experts also manages hosting, cybersecurity and Microsoft 365, the application, the servers it runs on and the helpdesk your staff calls are handled by one team.

How a project works

  1. Discovery. We meet with the people who will use the application, document the current process and agree on what the first version must do.
  2. Build in stages. You see working screens early and often, so changes happen before they are expensive.
  3. Launch and support. We deploy, train your users and stay on for updates, fixes and new features.

Related services

For process automation and data and reporting systems, see Custom Software Development. For public websites, see Web Development.

xBert, the Sierra Experts robot

xBert vs. Hackers

Play something we built

Our developers built a game. Go beat it.

xBert vs. Hackers is a browser arcade game our team wrote from scratch: original code and art, a live shared leaderboard, a prize-claim form, and controls that work with a keyboard or a phone screen. It is the same craft we bring to client portals and internal tools: fast, secure and built to fit.

  • Hand-written game engine and sound, no third-party code
  • Live leaderboard service with score checks and spam filtering
  • Works on desktop and mobile
Play xBert vs. HackersPlay Invasion (new)See our ERP demoTalk to us about your project

Talk to an engineer

Tell us what you are working on and a Sierra Experts engineer will reply within one business day. The first consultation is free.

What do you need help with?