Available for consulting

Venkatesh
Karuppusamy

Senior Full Stack Engineer

7+ years building and scaling SaaS platforms that serve thousands of businesses. From payment systems and POS solutions to serverless architectures — I turn complex ideas into production-ready products.

ReactNext.jsNode.jsTypeScriptAWSPrisma
Consult with MeView My Work

What I Build

Specialized in SaaS platform development with a focus on payment systems, scalable architecture, and team leadership.

SaaS Platforms

End-to-end product development from MVP to 53+ store deployments. Full-stack architecture with React, Next.js, and Node.js.

Payment Systems

POS systems, ACH and card processing, recurring billing, payment plans, and compliance-ready financial workflows.

Scalable Architecture

AWS Serverless infrastructure, CI/CD pipelines, real-time dashboards, and optimized API performance at scale.

Team Leadership

Architecture planning, sprint management, code reviews, and mentoring engineers on full-stack best practices.

Featured Projects

Enterprise-scale SaaS platforms serving real businesses with complex workflows.

2022 — Present

Poppy

Bridal Retail SaaS Platform

A comprehensive SaaS platform helping bridal retail stores manage inventory, customers, scheduling, payments, and communication workflows. Currently serving 53+ active store locations with full-stack modules spanning the entire product lifecycle.

53+ active store locationsEliminated paper-based processesReduced deployment friction
ReactNext.jsNode.jsPrismaTypeORMMySQL+6 more
2021 — 2022

Confido Legal

Legal Payment Platform

Payment processing and disbursement platform built for legal technology companies and law firms, enabling compliant client fund management. Formerly known as Gravity Legal.

Compliant fund managementFlexible billing optionsSecure payment processing
React.jsNode.jsTypeORMMySQLAWS CloudFrontAWS S3+2 more
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Technical Expertise

A deep, battle-tested toolkit built across 7+ years of SaaS development.

Frontend

ReactNext.jsAngularTypeScriptJavaScriptHTML5CSS3Tailwind CSSStyled Components

Backend

Node.jsExpressPHP LaravelREST APIsPrismaTypeORM

Databases

MySQLPostgreSQLDynamoDB

Cloud

AWS ServerlessAWS CloudFrontAWS S3AWS IAMAWS CloudWatchAWS Lambda

DevOps

GitHub ActionsNetlify CI/CDDockerCI/CD Pipelines

CMS

ContentfulBigCommerceMDX

Latest Writing

Technical insights, architecture patterns, and lessons from building SaaS at scale.

Mar 15, 20264 min read

Building a POS System for 53+ Bridal Retail Stores

Lessons learned from designing and implementing a full Point of Sale system as part of a SaaS platform serving 53+ active bridal retail locations.

SaaSArchitectureReact
Feb 20, 20264 min read

AWS Serverless Architecture Patterns for SaaS Platforms

Practical patterns and lessons from building serverless SaaS applications with AWS Lambda, DynamoDB, and API Gateway — tested at scale across 53+ locations.

AWSServerlessArchitecture
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Ready to build your next
SaaS platform?

From payment systems to scalable architectures — let's turn your vision into a production-ready product. 7+ years of experience, delivered.

Book a ConsultationView My Experience