Add English Boxed Subtitles

I have a 27-minute-58-second speech video in English (around 11 GB) and I need clean, accurately timed subtitles burned in along the bottom. The subtitles must appear in a solid background box so they stay legible against every scene... (Budget: ₹600 - ₹1500 INR, Jobs: Adobe Premiere Pro, Audio Editing, Proofreading, Subtitles & Captions, Transcription, Video Editing, Video Post-editing, Video Processing, Video Production, Video Services)