If you’re a good developer, you will be a useful asset to the company – regardless of the language.
We have a complicated business system/platform, written by ONE guy, in many different languages (from Perl to C# to Java to SQL to VBA to COBOL!). He’s a developer, not a programmer.
Jobsite, JobServe, Monster, CW Jobs, El Reg, LinkedIn, Facebook (look up old colleagues!), phone Oracle DB companies directly… no harm in asking.
Phone up recruitment agencies and register in person – they will route your call through to someone who deals with your skill set. The personal contact is ESSENTIAL, as you want them on your side – and relevant job – YOU want to hear about it first, before your competitors.
I’m based in the NW (Lancs) – but don’t know any contacts within businesses who use Oracle… I’ll ask around though 🙂
If you can do mobile dev (Android/Java, iPhone/Objective-C, Win7/.NET), I know of a position opening soon…