Custom Perl Parsing Script

I need an experienced Perl developer to build a data-processing script that focuses on heavy text parsing and manipulation. My source files are custom-formatted—think log-like records with proprietary field markers rather than standard CSV or JSON.

Here’s what I’m after:
• Read each input file, detect record boundaries, and extract the required fields with robust regular expressions.
• Perform inline transformations (e.g., trim, re-order, convert encodings, normalise dates) before writing the cleaned data to a single output file. CSV or JSON is fine; choose the format that keeps the code readable.
• Allow me to pass the input folder and output filename from the command line so the script runs easily in a cron job.
• Include clear in-code comments plus a brief README that explains required Perl version, CPAN modules (Text::CSV, JSON, or similar), and example calls.

I’m happy with straightforward, maintainable code over flashy one-liners, and I’ll be available to clarify the file structure once we start.