Pune, India · Open to Opportunities

👋 Hello, I'm Harshavardhan Kale Software Engineer

Final-year Computer Engineering student at COEP Technological University. Currently interning at Pine Labs. Passionate about systems, full-stack web, and machine learning.

View My Work Resume
756+ LeetCode Problems
10+ Projects
3 Internships
Harshavardhan Kale
COEP Pune
Pine Labs Intern
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Profile

About Me

A passionate engineer who loves building things that matter

I'm Harshavardhan Prataprao Kale, a final-year Computer Engineering student at COEP Technological University, Pune. I thrive at the intersection of robust engineering and creative problem-solving.

From building a high-throughput C++ Database Engine to leading a full-stack team at a startup, I love challenging myself across domains — systems programming, web development, machine learning, and fintech infrastructure.

Currently contributing to Pine Labs' backend infrastructure using Java, while wrapping up my B.Tech with a strong focus on System Design and DSA.

MHT-CET 99.81 percentile · HSC 94.83%
LeetCode 1682 rating · Top 14.4%
Led 4-member team · 2,200+ users served
10+
Projects
3
Internships
756+
LC Solved
99.81
CET %ile
 Competitive Programming
LeetCode Rating 1682
Problems Solved 756+ 🟡
GFG Problems 200+
GFG Institute Rank Top 5%
Academia

Education

My academic foundation and journey

 Nov 2022 – Jun 2026

B.Tech in Computer Engineering

COEP Technological University, Pune

Computer Engineering Data Structures & Algorithms Database Systems System Design MHT-CET 99.81 Percentile
 Jun 2020 – Dec 2021

Higher Secondary Education (12th)

Samarth Madhyamik va Uchhamadhyamik Vidyalay, Karjat

HSC Score: 94.83% Science Stream Mathematics · Physics · CS
 Jun 2018 – May 2019

Secondary Education (10th)

Dynamic English School, Karjat

SSC Score: 91.20% Core Subjects
Career

Experience

Where I've worked and what I've built

Software Development Intern
Pine Labs
Current Jan 2026 – Present
  • Contributing to backend development for fintech payment infrastructure using Java
  • Working on database management and API design for high-throughput transaction services
  • Collaborating with cross-functional teams on scalable, RBI-compliant payment systems
Java Backend Systems Database Management API Design Fintech
Lead Developer Intern
Mirai — BuildUp Global
May 2025 – Sep 2025
  • Led a 4-member development team to build "Mirai" — a MERN-based career guidance platform
  • Served 2,200+ students with strength-based assessments, domain recommendations & analytics dashboards
  • Increased user engagement by 35% during pilot testing; integrated Redis caching on GCP
React.js Node.js MongoDB Redis GCP Express.js
Product Development Intern
Schaeffler Technology Solutions
Jun 2025 – Aug 2025
  • Automated Windows server provisioning via PowerShell, reducing deployment time by 90% (2 days → 4 hours)
  • Standardized configuration across 4+ servers, eliminating 40% of configuration errors
  • Documented processes on Confluence, enabling seamless team knowledge transfer
PowerShell Windows Server IIS Confluence Automation
Tech Stack

Technical Skills

Technologies, tools & frameworks I work with

Programming Languages
C++
C
Python
Java
JavaScript
Dart
HTML5
CSS3
Frontend & Mobile
React.js
Flutter
Bootstrap
React Native
Backend & Frameworks
Node.js
Express.js
Django
Flask
REST APIs
Databases & Cloud
MongoDB
MySQL
PostgreSQL
Firebase
Redis
GCP
AWS
Tools & Platforms
Git
GitHub
Docker
PowerShell
Postman
VS Code
GitHub Actions
Core Competencies
System Design
Data Structures & Algorithms
RESTful API Design
OOP
Cloud Computing
Machine Learning
Portfolio

Featured Projects

A selection of things I've built — from systems to full-stack apps

Credit+ AI Credit Suite

Credit+ — AI Credit Orchestration Suite

RAG + Agentic AI system for intelligent loan decisions with sub-5s latency and RBI compliance-override safety. Multi-modal credit analysis.

AWS Bedrock Node.js DynamoDB Docker
Database Engine in C++

Database Engine in C++

SQL-compatible relational DB engine with ACID transactions, B-tree indexing, write-ahead logging, and MVCC. Achieved 3K QPS and 70% faster crash recovery.

C++ B-Tree WAL MVCC
COEP Placement Matrix

COEP Placement Matrix — MERN App

Exclusive placement network for COEP students to share interview experiences, insights, and career guidance. Live on Vercel.

React Node.js MongoDB Express.js
COEP Connect Flask

COEP-Connect — Flask Social Platform

College social media platform with anonymous polling, "Connect to People" feature, interest-based recommendation algorithm, and WebSocket-powered real-time chat.

Flask MongoDB WebSockets Python
Sentiment Analysis ML

Sentiment Analysis — ML Model

Multi-class sentiment classifier (positive/neutral/negative) achieving 85% accuracy using Logistic Regression on balanced Twitter data with TF-IDF/CountVectorizer.

Python Scikit-learn NLTK TF-IDF
EXPITA-O Expense Manager

EXPITA-O Expense Manager

Cross-platform expense manager with data visualization, automated budgeting suggestions powered by Gemini AI, and local-first Hive storage.

Flutter Dart Hive Gemini API
Multithreaded File Downloader

Multithreaded File Downloader

High-performance C++ file downloader using cURL and multithreading to download large files in concurrent chunks — significantly improved download speeds.

C++ cURL Threading Networking
Automated Attendance System

Automated Attendance — Facial Recognition

Full-stack attendance system with real-time face detection, role-based access for teachers/admins, and MongoDB backend for persistent records.

Python Flask OpenCV MongoDB
Connect

Get In Touch

Open to opportunities, collaborations, and good conversations

Email

kaleharshavardhan07@gmail.com

Location

Pune, Maharashtra, India

Status

Software Dev Intern @ Pine Labs