Available for Senior Roles & Consulting

Tushar P. Badgujar

Senior Backend Engineer | SaaS Architect | Distributed Systems Specialist

"I design and build scalable SaaS platforms, event-driven systems, and cloud-native architectures that handle real-world scale."

View Projects Contact Me

Node.js Expert

Auth0 & Security

SaaS Architect

Docker Scale

Engineering Resilience at Scale

As a Senior Backend Engineer, I specialize in the intersection of high-performance Node.js systems and robust infrastructure orchestration. My experience spans across building multi-tenant WhatsApp SaaS architectures where precision in message delivery and container lifecycle management is paramount.

I'm passionate about event-driven architectures, utilizing RabbitMQ to handle per-user queue systems that auto-scale and self-heal. My approach to infrastructure is "Security First," ensuring all services reside within VPN-restricted VPCs with wildcard subdomain routing managed via Traefik.

From complex MongoDB aggregation pipelines to CDN-backed file handling systems, I focus on building platforms that are not just functional, but demonstrably performant and secure.

Scalable SaaS Architect

Expertise in building WhatsApp automation systems handling hundreds of concurrent Docker containers.

Data Migration Expert

Proven track record migrating legacy MongoDB user bases to Auth0 for robust authentication.

Container Maestro

Architecting per-user queue systems and dynamic routing using Traefik and RabbitMQ.

Security Focused

Implementing VPN-restricted VPCs and secure API architectures with Infisical secrets management.

Technical Arsenal

A comprehensive stack built for scale, reliability, and security.

Backend Core

Node.js (TypeScript).NET CoreExpressEvent-driven ArchitectureRabbitMQ Queues

Database & Storage

MongoDB AtlasSQL ServerMySQLAggregation PipelinesRedis Caching

Infrastructure & DevOps

Linux AdminDocker & DockerodeTraefik ProxyCloudflare DNSLinode VPC

Security & Auth

Auth0 IntegrationBearer Token AuthInfisical SecretsVPN/VPC Isolationbcrypt

Specialized Tech

AngularBaileys (WA API)MicroservicesMulti-tenant ArchBackground WorkersWildcard SSL

Monitoring

BetterStack LogsUptime MonitoringPerformance ProfilingError TrackingHealth Checks

Featured Projects

Real-world platforms built for scale, performance, and reliability.

kashNet.cloud

A premium cloud-based financial and messaging platform with high-performance UI and real-time data sync.

Next.jsTypeSriptTailwindFramer Motion

Premium glassmorphism UI

Real-time data visualization

Secure Auth0 integration

Cloud-native architecture

WhatsApp Automation SaaS

Enterprise-grade WhatsApp automation system featuring dynamic Docker deployment and RabbitMQ queues.

Node.jsDockerodeRabbitMQBaileysTraefik

Per-user Docker containerization

Event-driven message routing

Wildcard subdomain routing

Auto-scaling queue consumers

gomap.in

A comprehensive real estate platform featuring interactive mapping, property discovery, and 3D architectural visualizations.

Next.jsThree.jsGeolocationNode.js

Interactive 3D property maps

Advanced geospatial search

Real estate data pipelines

High-performance image CDN

Multi-tenant SaaS Engine

Core infrastructure engine powering scalable SaaS applications with automated provisioning.

.NET CoreSQL ServerLinuxDocker

Automated tenant provisioning

Centralized secret management

VPN-restricted infrastructure

Microservices orchestration

System Architecture

A visual overview of the multi-tenant SaaS infrastructure.

Edge Layer

Cloudflare DNS & Wildcard SSL Handling

Incoming Requests

Traefik + Docker

Dynamic Routing & Container Orchestration

User Instances

Event Bus

RabbitMQ Per-User Queues

Consumer 01

Consumer 02

Multi-Tenant Lifecycle

01Auth0 Verification

02Docker Provisioning

03RabbitMQ Binding

04Dynamic Routing

The Production Stack

Battle-tested technologies used in building high-performance SaaS platforms.

Node.js

TypeScript

.NET

Next.js

Angular

Docker

Linux

RabbitMQ

MongoDB

MySQL

SQL Server

Cloudflare

Let's Build Scale Together

Have a complex architectural challenge or a SaaS product in mind? Let's connect and discuss how we can build resilient systems.

tushar@example.com