J.V

Jathushan Varnakulasingam

Building an AI Job Application Assistant with Next.js & Flask
AI & Web Development 8 min read Dec 2025

Building an AI Job Application Assistant with Next.js & Flask

A breakdown of my AI-powered resume analyzer that detects skill gaps, matches job descriptions, and provides smart career suggestions.

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Job hunting is exhaustive. Tailoring resumes for every application is a full-time job. I built an AI assistant to do the heavy lifting.

Core Features

The app takes your resume (PDF) and a job description URL. It uses NLP to extract keywords from both and calculates a matching score. It then suggests specific keywords you are missing.

Tech Stack

The frontend is Next.js for a snappy UI. The backend is Flask, serving the ML models. I used Spacy for initial keyword extraction and then integrated a commercially available LLM API for the career advice generation.

Challenges

Parsing PDFs accurately is surprisingly hard. I had to experiment with several libraries like PyPDF2 and PDFMiner before settling on a solution that handled format inconsistencies well.

Technologies Analyzed

Next.js Flask Python NLP Spacy

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Jathushan Varnakulasingam | Full-Stack Developer & AI Enthusiast