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Building Reliable Software
That Solves Real Problems.

I'm Laxman Gaidhankar, an Electronics & Telecommunication Engineering student focused on backend development, Android development, and full-stack applications, with a passion for building reliable, scalable, and user-centric software.

Explore Projects Get in touch →
laxman-system-architecture — bash
v2.4.0-production
system@laxman-dev:~$ curl -X GET https://api.laxman.dev/v1/status
{
  "engineer": "Laxman Gaidhankar",
  "degree": "B.Tech. Electronics & Telecommunication Engineering (2025-2028)",
  "specialization": ["Backend Systems", "Android Native", "Full-Stack"],
  "tech_stack": [ "Java", "Spring Boot", "Node.js", "React", "PostgreSQL", "MongoDB" ],
  "key_achievements": ["1st Winner Build for Billions", "Top 33 Dimension X", "Top 100 AWS IIT Bombay"],
  "architecture_standard": "Clean Architecture, Fault Tolerant, Zero-Downtime",
  "status": "Available for SWE Internships"
}
system@laxman-dev:~$ █
ABOUT

Building reliable backend applications, Android experiences, and full-stack solutions with clean architecture and modern engineering practices.

I'm an Electronics & Telecommunication Engineering student passionate about software engineering, with a strong interest in backend development, Android applications, and full-stack web development. I enjoy building reliable software using Java, Spring Boot, Node.js, React, and MongoDB while continuously learning modern engineering practices.

My interests include data structures and algorithms, object-oriented programming, database management, and backend system design. I value clean architecture, maintainable code, and building software that is reliable, efficient, and easy to extend.

2+ Hackathons Winner
500+ GitHub Commits
200+ Leetcode Problems
2+ Production Projects
SELECTED WORK

Featured Engineering Projects

Security & Cryptography

CipherVault

A tokenization engine replacing sensitive PII fields with secure tokens before data enters downstream systems and reporting pipelines, with tenant-aware access isolation.

PROBLEM STATEMENT

Storing raw PII (account numbers, customer identity) in application and reporting pipelines risks exposure across institutional clients sharing the same multi-tenant system.

ARCHITECTURE OVERVIEW

Spring Boot service backed by PostgreSQL and JPA, using Spring Security to enforce tenant-aware data access and a role-based detokenization workflow for accessing sensitive fields.

KEY FEATURES
  • Tokenization engine replacing sensitive PII fields with secure tokens so downstream services operate only on tokenized data
  • Tenant-aware data access enforcing logical isolation between institutional clients in a shared multi-tenant architecture
  • Role-based detokenization workflow requiring reason codes and audit logging for every sensitive data access
Java Spring Boot Spring Security PostgreSQL JPA
ciphervault.ongoing.....
CipherVault System Preview
Privacy & Peer Support

HeartBench

Privacy-first peer support and study-matching platform connecting students in real time by need category and location, without exposing their identity.

PROBLEM STATEMENT

Public broadcast-style matching exposes who's asking for support and where — students need a way to find peer or study matches nearby without giving up their privacy.

ARCHITECTURE OVERVIEW

Mobile-first React PWA backed by a Node.js/Express service using Socket.io for real-time matching and MongoDB's 2dsphere geospatial indexing for location-zone proximity matching.

KEY FEATURES
  • Privacy-first matching engine using pseudonymized identities and location fuzzing, with secure server-side pairing instead of public broadcast matching
  • Real-time request-response matching via Socket.io, targeting sub-3-second match notification delivery
  • Category-based escalation logic routing high-sensitivity requests toward campus counseling resources rather than peer-only matching
React (PWA) Node.js Express.js Socket.io MongoDB (Geospatial)
heartbench.ongoing.....
HeartBench Platform Preview
FinTech & System Resilience

RelayPay

A payment failover platform that reactively relays a failed transaction to a trusted family/circle member's linked bank account, verified after the failure occurs.

PROBLEM STATEMENT

Payment failures leave the payer stuck with no fallback. Existing approaches like NPCI UPI Circle rely on proactive delegation set up in advance — RelayPay instead triggers failover reactively, only once a payment failure is verified.

ARCHITECTURE OVERVIEW

Native Android client (Java, MVVM + Clean Architecture) backed by a Node.js/Express/MongoDB service layer. The backend runs a failover state machine with enforced transitions, a double-entry ledger using MongoDB sessions and optimistic locking, and a swappable bank-adapter interface currently backed by a mock provider.

KEY FEATURES
  • Reactive failover engine relaying a failed payment to a linked bank account within the user's family circle after verified failure
  • Double-entry ledger service with MongoDB session-based transactions and optimistic locking for consistency
  • JWT auth with refresh token rotation, OTP gating, and brute-force lockout protection
Java (Android) Node.js Express MongoDB JWT
View GitHub → View Live →
relaypay.laxman.dev
RelayPay Platform Preview
TECHNICAL SKILLS

Technologies & Tools

Programming Languages

C C++ Java JavaScript Python SQL

Backend Development

Node.js Express.js Spring Boot REST APIs JWT Authentication Prisma ORM

Frontend Development

React HTML5 CSS3 Tailwind CSS Responsive Design REST API Integration

Android Development

Java Android SDK XML MVVM Retrofit Firebase

Databases

PostgreSQL MongoDB Firebase Firestore MySQL Room Database Database Design

Tools & Platforms

Git GitHub Docker Postman Android Studio VS Code

Computer Science Fundamentals

Data Structures & Algorithms Object-Oriented Programming Operating Systems Computer Networks DBMS Software Engineering
EXPERIENCE & ACHIEVEMENTS

Hackathons & Technical Leadership

Jan 2026 Top 33 Finalist

Dimension X 2026 Hackathon

GDG On Campus • Sustainability Track

Shortlisted among the Top 33 out of 150+ developer teams nationwide. Developed a full-stack sustainability tracking web platform featuring real-time data telemetry.

Dec 2025 Top 100 Nationwide

AWS IIT Bombay ImpactX Challenge

AWS & IIT Bombay • Cloud Challenge

Selected in the Top 100 out of 900+ teams nationwide for engineering cloud-native microservices addressing social impact and scalable public infrastructure.

Dec 2025 Top 12 Finalist

Startup Smackdown Hackathon

Startup Smackdown • Rapid MVP Track

Rapidly prototyped a functional MVP backend API and frontend within 24 hours, placing in the Top 12 out of 163+ competing developer teams.

Nov 2025 1st Position Winner

Build for Billions Hackathon — IndiaStack

Team MarathaMinds • National Competition

Secured 1st place in national competition by engineering high-concurrency public digital infrastructure backend APIs built to support high request volume under low latency requirements.

EDUCATION

Education

Bachelor of Technology

Electronics & Telecommunication Engineering

Bachelor of Technology (B.Tech.)

2025 – 2028 • Pune Institute of Computer Technology (PICT), Pune

Pursuing a Bachelor's degree in Electronics and Telecommunication Engineering while building a strong foundation in software engineering, data structures, backend development, databases, and Android application development through academic coursework and personal projects.

Data Structures & Algorithms Java MERN Full Stack Java Full Stack Development Problem Solving Software Engineering
Diploma

Diploma in Computer Engineering and Technology

Junior Degree

2022 – 2025 • ZES's Zeal Polytechnic, Pune

Built a strong foundation in computer programming, software development, database management, networking, and object-oriented programming. Gained practical experience by developing real-world applications and strengthening problem-solving skills through hands-on projects.

Data Structures & Algorithms Java C++ Python Database Management Systems Operating Systems Computer Networks Object-Oriented Programming
CONTACT

Let's build something exceptional together.

Interested in collaborating, discussing an opportunity, or simply saying hello? My inbox is always open. Let's create something meaningful together.

Email Me → LinkedIn → GitHub →