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Jathushan Varnakulasingam

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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 task. I built an AI assistant to do the heavy lifting of resume optimization.

AI in Modern Recruitment

Modern job hunting requires speed and precision. This application takes your resume (PDF) and a job description URL, uses Natural Language Processing (NLP) to extract key skills, and calculates a semantic matching score.

The Next.js & Flask Hybrid Tech Stack

The frontend is powered by Next.js for a premium, responsive UI. The backend is a Flask server handling complex ML tasks. I integrated Spacy for keyword extraction and LLM APIs for generating personalized career advice and resume improvements.

Solving Complex PDF Parsing Challenges

Parsing unstructured PDFs accurately is a significant technical hurdle. I experimented with various libraries before settling on a robust pipeline that handles complex resume layouts without losing metadata or formatting context.

Technologies Analyzed

Next.js Flask Python NLP AI

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