Custom Business Applications
Applications built precisely around your processes — CRM, ERP, internal and record-keeping systems, task automation and reporting.
Custom Software Development
When off-the-shelf software no longer fits, we build the system your processes need: internal applications, web portals, desktop tools and integrations with Microsoft 365, Active Directory and your ERP. Delivered remotely from Slovakia for companies in Germany, Austria and Switzerland, with code you own and can maintain.
Our services
What we develop
Web Portals and Internal Systems
Modern web solutions, portals, intranets, authentication via Azure AD and REST API.
Desktop Applications
High-performance Windows applications built with Avalonia UI, WinUI or WPF.
Integrations and APIs
Connecting systems via REST/JSON, SOAP, integrations with Outlook, SharePoint and AD.
Maintenance and further development of existing software
We take over applications whose original developer is gone, document them, fix what is broken and keep developing them, whether they are in .NET, PHP or older technologies.
Technologies
Technologies and services we offer
C#, .NET / .NET 8, Windows Services, scheduled tasks, data tools, reporting
ASP.NET Core, Blazor, REST API, Azure AD authentication, HTML, CSS, JS
C#, Avalonia UI, WinUI, WPF – cross-platform GUI for internal tools and system management
Outlook interop, SharePoint API, Active Directory, REST/JSON, SOAP, internal and cloud APIs
SQL Server, MariaDB, PostgreSQL, MongoDB – design, ORM (Entity Framework), data optimization
PowerShell, .NET background tasks, cron jobs, imports/exports, process automation
.NET
ASP.NET
Blazor
SQL Server
PostgreSQL
MongoDB
REST API
WPF / Avalonia UI
Why Exon
Why choose EXON Slovakia
Nearshore, not offshore
EU contracts and GDPR, working hours in CET, video calls in English with the people who actually write the code.
Secure and stable code
Development following current .NET standards and OWASP security practices, with automated tests and CI/CD.
Built into your infrastructure
Authentication via Azure AD, integration with SharePoint, Exchange, databases and internal APIs, not a standalone island.
Easy to maintain, yours to keep
Modular architecture, clean code, documentation and full source code ownership; no vendor lock-in.
One partner for software and operations
We can also run the servers and cloud your application lives on, so there is no gap between development and operations.
How it works
How we work
1
Needs Analysis
Together we understand your goals and processes to design the right solution.
2
Solution Design
We design the architecture, features and technologies tailored to you.
3
Development and Testing
We develop, test and continuously deliver working parts for review.
4
Deployment and Growth
We deploy to production and keep developing according to your needs.
References
Solution showcase
Custom Development
IT asset management system
A system developed by us and deployed locally for tracking the company's entire IT hardware — from phones and SIM cards to laptops and printers. Device status, loans and costs all in one place.
View project
System Integrations
IT environment management tool
A desktop application for IT administrators to manage users, licenses and permissions across Active Directory and Azure. Routine tasks — from blocking USB ports to Teams telephony — in a few clicks instead of manual scripts.
View project
Enterprise Client (NDA)
Razor Risk management tool
A graphical tool for administering Razor Risk — an extensive risk-management platform used in banking that is normally operated from the command line. Installation, configuration, log reading and the entire operation from a single clear dashboard.
View project