As Vuurmuur is an Open Source project, you can always request or even contribute new features, optimizations and bugfixes. However, as Vuurmuur is a volunteer effort, time is always an issue. Vuurmuur's main developer and project lead, Victor Julien (LinkedIn), therefore can also be hired. You can contact him directly for this. Victor Julien is an experienced contract coder and, since he created Vuurmuur, knows Vuurmuur inside out. Please consider this when requesting new features!
Alternatively, please consider making a donation!