Raydcode

Senior Software Engineer & Backend Specialist

About Me

Get to know more about my background and experience

Kathir Karthik

Hi, I'm Kathir Karthik

I'm Kathir Karthik, a Senior Software Engineer with 5+ years of experience building scalable, secure, and high-performance backend systems. I've contributed to projects spanning e-commerce, fintech, and SaaS, delivering robust APIs, cloud solutions, and microservices.

5+ Years Experience
Backend Specialist
Cloud Solutions
Microservices

Technical Skills

Technologies and tools I use to bring ideas to life

Version Control

Git

Cloud

AWS

Database

SQL
NoSQL

Backend

PHP
Node.js

Framework

Laravel

Frontend

HTML
CSS

API

REST API
GraphQL
gRPC

OS

Linux

Language

TypeScript
Python
Go
5+
Years Experience
15+
Technologies
10+
Projects Delivered

Work Experience

My professional journey and career milestones

Senior Software Engineer

Matrimony.com

Aug 2024 – Present

Leading backend development for matrimony platform serving millions of users.

PHPLaravelAWSMySQLRedis

Full Stack Engineer

Crayon'd

Aug 2021 – Jul 2024

Developed end-to-end solutions for fintech and e-commerce platforms.

Node.jsReactPostgreSQLAWSTypeScript

Backend Developer

Quart Ciphers

Feb 2021 – Jul 2021

Built secure backend systems and APIs for enterprise clients.

PythonDjangoPostgreSQLDocker

Backend Developer

Solid Trust Technologies

Apr 2020 – Jan 2021

Developed scalable backend services and microservices architecture.

Node.jsMongoDBExpress.jsAWS

Web Developer

Innospace Automation

Sep 2019 – Mar 2020

Created web applications and automation tools for business processes.

PHPMySQLJavaScriptHTML/CSS

Want to know more about my professional experience?

Let's Connect

Featured Projects

A showcase of my recent work and contributions

Backend
ManyJobs

Job portal backend optimization for handling thousands of concurrent users with improved search and matching algorithms.

Node.jsPostgreSQLRedis+1
Fintech
Wedding Loan

Loan aggregator API services connecting multiple financial institutions with seamless application processing.

PHPLaravelMySQL+1
E-commerce
Wedding GiftBox

E-voucher gift card service with multi-vendor integration and real-time transaction processing.

Node.jsMongoDBExpress.js+1
HR Tech
AtomicSignals

Employee feedback system with real-time analytics and sentiment analysis for HR insights.

PythonDjangoPostgreSQL+1
Security
Identity Management

Role-based access control (RBAC) solution with OAuth2 integration and multi-tenant architecture.

GoPostgreSQLOAuth2+1
SaaS
Plan & Subscription Management

SaaS subscription framework with billing automation, usage tracking, and plan management.

Node.jsTypeScriptStripe+1
PropTech
PropGoTo

Property management backend with booking system, payment processing, and tenant management.

PHPLaravelMySQL+1
DevTools
Toolkit

Developer tools suite with code generation, API testing, and deployment automation features.

PythonFastAPIDocker+1
E-commerce
Caratlane

Digital gold & e-commerce enhancements with real-time pricing and inventory management.

JavaSpring BootMySQL+1
Fintech
YIKSI Wallet

Fiat & crypto bridge wallet with secure transaction processing and multi-currency support.

Node.jsBlockchain APIsPostgreSQL+1

Interested in seeing more of my work?

View on GitHub

Get In Touch

Have a project in mind? Let's discuss how we can work together

Let's start a conversation

I'm always interested in hearing about new opportunities and projects. Whether you're looking for a senior backend engineer or want to collaborate on something exciting, feel free to reach out.

Location

Chennai, India

Available for new opportunities
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