Yes. Many customers use vanity or custom-branded name servers with dnsjuice. This usually means creating hostnames such as ns1.yourdomain.com and ns2.yourdomain.com that point to the appropriate service IP addresses, then using those hostnames at your registrar.
The exact setup depends on your domain registrar and whether you need glue records or host records created there first. Make sure the custom names you plan to use are set up correctly before switching production traffic.
If your account supports vanity DNS, follow the values and setup steps shown in your service or control panel.