Customer Success ATS Résumé Upgrade

I have a solid two-page résumé that now needs a professional polish. The main task is to weave my newest Customer Success Manager role into the existing document so it reads naturally, sounds current, and meets modern Applicant Tracking System (ATS) standards... (Budget: $250 - $750 USD, Jobs: Copywriting, Data Analysis, Editing, Finance, Microsoft Word, Proofreading, Resumes, SaaS)