Hey, I'm David from the UK. Other than knowing your application is probably java-based (due to maven) I don't know much, but am a professional developer with 8+ years experience. I've had lots of experience working with and fixing the works-on-my-machine type of problems, but would be good to get an idea of what errors you're having before committing to the project.
Let me know. I've put delivery in 3 days but to be honest, with this kind of thing I can usually fix it within a day of accepting.
Cheers,
Dave