Kamalesh G

Software Developer

Bengaluru, India 1+ yrs exp 84 · Excellent

About

Full Stack Developer with 2 years of experience building scalable backend architectures using Node.js, NestJS, and Express.js alongside modern React.js frontends. Proven in integrating third-party systems including Google OAuth 2.0, JWT authentication, Stripe and Razorpay payments, and automated workflows via Microsoft Power Automate. Experienced with PostgreSQL/MySQL optimization, AWS S3 media handling, and deploying services on Google Cloud (Cloud Build, Cloud Run). Strong collaborator with a track record of delivering reusable middleware, improving API performance, and automating critical business processes.

Skills & Expertise (25)

Express.js Intermediate

7.4/10

Years Exp

Node.js Intermediate

7.4/10

Years Exp

NestJS Intermediate

7.0/10

Years Exp

React.js Intermediate

6.8/10

Years Exp

AWS S3 Intermediate

6.0/10

Years Exp

Google OAuth 2.0 Intermediate

6.0/10

Years Exp

JWT Intermediate

6.0/10

Years Exp

MySql Intermediate

6.0/10

Years Exp

Postgresql Intermediate

6.0/10

Years Exp

Sequelize ORM Intermediate

6.0/10

Years Exp

Tailwind CSS Intermediate

6.0/10

Years Exp

REDUX Intermediate

6.0/10

Years Exp

Google Cloud Platform Intermediate

5.0/10

Years Exp

Stripe Intermediate

5.0/10

Years Exp

Razorpay Intermediate

5.0/10

Years Exp

Microsoft Power Automate Intermediate

5.0/10

Years Exp

OpenAI Intermediate

5.0/10

Years Exp

ChatGPT API Intermediate

5.0/10

Years Exp

Stable Diffusion Intermediate

5.0/10

Years Exp

OpenCV Intermediate

5.0/10

Years Exp

TensorFlow Intermediate

5.0/10

Years Exp

CNN Intermediate

5.0/10

Years Exp

CSS3 HTML5 Material UI (MUI

Work Experience

Fullstack Developer

Napses Technology Pvt Ltd

Mar 2025 - Present

Designed and scaled NestJS backend services and REST APIs with PostgreSQL to support an active user ecosystem. Integrated Google OAuth 2.0 for centralized authentication and implemented JWT authorization. Built and optimized custom APIs integrating OpenAI services for automated content generation and speech-to-text conversion. Managed AWS S3 storage security policies and access control configurations. Collaborated with frontend developers using Agile methodologies to deliver dynamic, responsive web applications.

Software Developer

VMax Health and Wellness Pvt Ltd

Aug 2024 - Dec 2024

Engineered 25+ scalable RESTful APIs using Node.js, Express.js, and Sequelize ORM, improving CRM data retrieval speeds by 25%. Configured secure Google OAuth 2.0 and JWT-based authentication to establish robust role-based access control across core user tiers. Integrated Razorpay and Stripe payment flows including webhooks and virtual accounts, processing 5k+ monthly transactions. Authored reusable middleware and API boilerplates to reduce repetitive development effort by 30% and accelerate sprint delivery. Automated critical business workflows using Microsoft Power Automate and Interakt WhatsApp APIs, reducing manual client communication tasks by 40%. Optimized complex SQL queries in PostgreSQL and MySQL to reduce database server latency by 15%. Deployed secure media upload infrastructure using AWS S3 pre-signed URLs and collaborated with frontend teams to streamline production deployments. Spearheaded backend architecture for customer management, payment processing, workflow automation, and reporting modules.