AI-Powered Job Application Tool: Optimize Your Resume EffortlesslyAI-Powered Job Application Tool: Optimize Your Resume Effortlessly
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Resumer is a full-stack platform I built to fix the two most annoying parts of applying to jobs: not knowing if your resume will actually pass an ATS, and rewriting it for every single posting. I built it as a personal project and it's now indexed on Google, live, and has run 300+ resume scans for 100+ users.
The core is an AI analysis engine, upload a PDF, get an ATS compatibility score, plus structured feedback on missing keywords, formatting issues, and specific tips to fix them. From there, the optimization engine can rewrite sections generally or tailor them to a specific job description, with a before/after diff view so you can see exactly what changed and why, instead of trusting a black box.
I also built a full drag-and-drop resume builder from scratch, multiple templates, undo/redo history, real-time PDF export, so users aren't just getting feedback, they can act on it in the same place. Auth runs on JWT with Google/GitHub OAuth, resumes are stored on Cloudinary with auto-generated thumbnails, and the whole thing is a TypeScript monorepo (React/Vite frontend, Express backend) so the types stay in sync across both sides.
The result is a production tool people actually return to, not a one-off demo, scan history, multiple resume versions, and a builder that holds up under real usage.
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The network for creativity
Join 1.25M professional creatives like you
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Creatives on Contra have earned over $150M and we are just getting started