VR.
Varshith Rajarapu
AVAILABLE FOR HIRE
LOCEAU CLAIRE, WI
EST2026
FULL-STACK DEVELOPER

VARSHITH
RAJARAPU

AI / API / SCALABLE SYSTEMS

Building production-grade web apps and AI-powered systems with FastAPI, Next.js, and a focus on performance, scale, and real-world usability — from RAG assistants to ATS scoring engines that turn 10 minutes of review into 3 seconds.

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01 / ABOUT

THE DEVELOPER

// hi there!

I'M VARSHITH

A Full-Stack Developer & CS Student

I build scalable web applications and AI-powered systems. I'm currently finishing my B.S. in Computer & Information Science at the University of Wisconsin–Eau Claire, with a certificate in Information Systems. My focus is on API design, system architecture, and database integration — using tools like FastAPI, Next.js, PostgreSQL, and modern LLM workflows to ship things that actually work in production.

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02 / TECH STACK

TOOLS OF THE TRADE

03 / SELECTED WORK

FEATURED PROJECTS

COMMISSION / SAAS
#01
RESUME— A I  A N A L Y Z E R —
ATS Scoring Engine
FASTAPI · OPENAI · POSTGRES

AI Resume Analyzer

LLM-powered resume scoring with job-matching APIs. Cuts review time from 10+ min to under 3 seconds.

FastAPI OpenAI Next.js Docker
3s per resume JAN '26 — PRESENT
CASE STUDY →
RESEARCH / RAG
#02
GEN AI— D E V  A S S I S T A N T —
Codebase RAG Search
LANGCHAIN · FAISS · OPENAI

GenAI Developer Assistant

RAG assistant that helps devs navigate 5,000+ line codebases through semantic search and live explanations.

LangChain FAISS Embeddings Python
<10s debug time OCT '25 — MAR '26
CASE STUDY →
AI AGENT / ML
#03
F1·26— P R E D I C T I O N  M O D E L —
Race Winner Predictor
PANDAS · SCIKIT-LEARN · NUMPY

F1 2026 Winner Prediction Agent

ML model trained on 20+ seasons and 50,000+ race records. Reaches 70–75% accuracy on outcomes.

Scikit-learn Pandas Matplotlib
75% accuracy JAN '26 — FEB '26
CASE STUDY →
REAL-TIME / WEBSOCKETS
#04
CHAT.AI— L I V E  M O D E R A T I O N —
Real-Time Chat with AI
FASTAPI · WEBSOCKETS · NEXT.JS

Real-Time Chat App + AI Moderation

WebSocket chat with millisecond AI message filtering. Tested with 50+ concurrent users without latency drops.

WebSockets FastAPI OpenAI Async
50+ concurrent users FEB '25 — APR '25
CASE STUDY →
FULL-STACK / OPTIMIZATION
#05
STACK— R E S T  +  S Q L —
Full-Stack Web App
NEXT.JS · FASTAPI · POSTGRES

Full-Stack Web Application

REST APIs powering a dynamic frontend. Cut SQL query times from 400ms to under 250ms via indexing.

Next.js FastAPI PostgreSQL Java
250ms query time JAN '24 — APR '24
CASE STUDY →
RESEARCH / UWEC
#06
FRAUD— A D  D E T E C T I O N —
Ad Fraud Detection
CLASSIFICATION · ANOMALY DETECTION

Ad Fraud Detection Research

Processed 100K+ records, engineered 15+ features, improved fraud detection by 20–25% over baseline.

Scikit-learn Pandas NumPy Jupyter
+25% precision SEP '24 — DEC '24
CASE STUDY →
04 / RESEARCH

DATA, MODELS, RESULTS

UNIVERSITY OF WISCONSIN-EAU CLAIRE · 2024

Ad Fraud Detection at Scale.

A semester-long research project investigating fraudulent traffic patterns in advertising data. I processed and cleaned datasets of over 100,000 records using Pandas, engineered 15+ features, and trained classification and anomaly detection models that improved detection performance by 20–25%. I evaluated models with precision and recall, then generated visual reports in Matplotlib to surface fraud trends and inform future work.

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100K+
RECORDS
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DETECTION GAIN
15+
FEATURES BUILT
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