~/portfolio $ ▊

KARTHIK
RAJESH SHET

Backend Engineer  ·  Distributed Systems  ·  Founder

Building fault-tolerant APIs and scalable backend systems at production scale.
Founded Codemyfyp (MSME) — 30+ engineers, 3+ production apps, paying clients.
MCA Graduate · Surana College, Bengaluru.

30+
Interns Led
3+
Prod Apps
35%
API Perf Gain
80%+
Test Coverage
View Projects Get In Touch
capabilities

Tech Stack.

karthik@dev — skills.json
backend
Node.jsExpress.jsTypeScriptREST APIsJWTRBACRedisGraphQL
frontend
React.jsNext.jsTailwind CSSHTML5CSS3
databases
MongoDBPostgreSQLMySQLMongoose ODMQuery OptimisationACID
devops
GitGitHub ActionsDockerCI/CDVercelRender
testing
JestPostmanUnit TestingAPI Testing
ai & integrations
OpenAI APIPrompt EngineeringWebhooksIdempotencyPayment APIs
concepts
System DesignScalabilityFault ToleranceDSAOOPAgile
languages
JavaScriptTypeScriptPythonJavaPHP
work history

Experience.

2025 — Present
Bengaluru, KA
Founder & Software Engineer
MSME Registered
Codemyfyp IT & Software Solution
  • Founded revenue-generating software startup delivering SaaS platforms and client applications
  • Led and mentored 30+ interns — sprint planning, code reviews, architecture decisions
  • Built scalable REST APIs with Node.js, Express.js, MongoDB; enforced modular architecture
  • Delivered 3+ production-grade apps including e-commerce systems with payment integrations
  • Established Git workflows, CI/CD pipelines, and Agile engineering best practices
Jun–Sep 2024
Bengaluru, KA
Full Stack Developer Intern
Prinston Smart Engineering
  • Built and deployed REST APIs with Node.js + Express.js for production environments
  • Implemented JWT authentication and RBAC security systems
  • Optimised MongoDB queries + caching — ~35% API response time improvement
  • Built and tested 10+ API endpoints with validation, error handling, and reliability testing
selected work

Projects.

01 / FEATURED
Payment Gateway
Simulation System
LIVE DEPLOYMENT

Stripe-inspired payment infrastructure simulating the full real-world payment lifecycle — create, authorize, capture, refund. Designed idempotent APIs, webhook retries, and ensured PostgreSQL ACID consistency.

Node.js PostgreSQL ACID Idempotent APIs Webhooks Retry Logic
View Live →
Idempotency
Unique keys prevent duplicate charges
Reliability
Webhook retries with backoff
Consistency
PostgreSQL ACID
02 / FINAL YEAR PROJECT
NEXORA — AI-Powered MERN Platform

Full-stack SaaS with RBAC, JWT auth, OpenAI chatbot, analytics, and 80%+ test coverage using Jest.

React.js Node.js MongoDB TypeScript OpenAI API Jest
03 / 2023
College Result Management System

Academic portal managing 200+ student records with automated PDF reports, reducing manual work by 70%.

PHP MySQL JavaScript
04 / SYSTEM DESIGN
Distributed URL Shortener (Bitly Clone)

Built a scalable URL shortener handling high traffic with millions of redirects. Implemented Base62 encoding, Redis caching, and rate limiting. Designed stateless services for horizontal scaling.

Node.js Redis MongoDB Base62 Rate Limiting Scalability
View Code →
recognition

Beyond Code.

6×
🏆
Sadhana Contest Winner
6-time winner & 3-time runner-up in competitive algorithmic programming contests — consistent DSA excellence.
100+
🎯
IT Fest Organiser
Organised a State-Level IT Fest — end-to-end logistics and coordination for 100+ participants.
MSME
🚀
Registered Founder
Founded Codemyfyp — Udyam-registered MSME with 30+ interns and paying clients, built during MCA.
education & certifications

Credentials.

2023 — 2025
Bengaluru
Master of Computer Applications (MCA)
Surana College (Autonomous)
2020 — 2023
Hubli
Bachelor of Computer Applications (BCA)
Global College of Management
Full Stack Web Development
Prinston Smart Engineering
2024
SQL Database Management
Surana College
2024
Python & Data Visualization
Surana College
2024
Front-End Development
Simplilearn
2024
Java Programming
Surana College
2023
get in touch

Let's
Build
Together.

Open to full-time backend engineering roles, freelance projects, and collaboration. Based in Bengaluru — available immediately.

Email
kartikrshet@gmail.com
Phone
+91 97426 58379
LinkedIn
karthik-shet-519530257
GitHub
github.com/karthikrshet
Portfolio
karthikrshet.github.io/portfolio
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