Hello,sir. I have read your post and noticed that you were looking for someone who can do your job - 'FreePBX Plugin that collects data from a user after IVR'
I can show you my work history, if you want. I am a professional web and software developer and familiar with similar jobs.
My major skills are Asterisk PBX, PHP, VoIP, Linux, Software Architecture and so on.
Please ping me, so we can immediately start.