Need a review of my CV

Must be single page. Summary is repetitive, I’m only going to read the first 2 lines of your most recent job and skim the rest. I have 3000 resumes for 1 position. By specific, what’s core engineer what’s responsible. Builtsingle api that can do more transactions tells me nothing, it could all be the effort of your infra teams and aws. Maybe all APIs can do 100k transactions at your company. How did you make an api that satisfies requirements of 5 teams. How did you make optimizations to make it uniquely fast. Tell a story. Onboards a bank, what does that mean, this could read exactly like a business persons resume line.