Full-Stack Developer | SaaS Architect | Shopify Systems Engineer

I design and build scalable software products, SaaS platforms, and high-performance ecommerce systems used by real businesses.

With 10+ years of experience in full-stack development, I specialize in building production-ready systems — from early MVPs to enterprise-scale platforms — with clean architecture, reliable infrastructure, and long-term scalability in mind.

My work focuses on solving real business problems through software: automation, scalable backend systems, modern frontend applications, and integrations that power real products.

LinkedIn
https://www.linkedin.com/in/swadhinz

I help founders, startups, and businesses build:

• SaaS platforms
• Scalable web applications
• Shopify ecommerce systems
• Internal automation tools
• AI-powered applications
• Enterprise business software

My focus is always on:

• clean architecture
• scalable infrastructure
• production-ready systems
• long-term maintainability

🔗 https://taskgrid.io/

An all-in-one project and task management platform combining boards, real-time collaboration, analytics, automation, and team communication.

What it solves

• Replaced multiple fragmented productivity tools
• Simplified complex workflows without sacrificing power
• Designed to support high concurrency teams

Stack

Nuxt.js, Vue.js, NestJS, MongoDB, PostgreSQL, Redis, Socket.io, AWS

🔗 https://pengine.io/

A next-generation print-on-demand platform with Shopify integration, bulk mockup generation, wallets, and enterprise APIs.

Key features

• Automated POD workflows
• High-volume mockup generation via API
• Shopify integrations for real stores
• Enterprise-ready architecture

Stack

Nuxt.js, NestJS, PostgreSQL, MongoDB, Redis, ClickHouse, Typesense, AWS, Stripe, Shopify API

🔗 http://egshop.io/

A Shopify-like ecommerce platform enabling merchants to launch and manage online stores easily.

Capabilities

• Multi-tenant architecture
• Store management and product systems
• Integrated payments and logistics
• Scalable SaaS infrastructure

Stack

Node.js, MongoDB, Redis, Docker, AWS, CDN

🔗 https://b2c.thunderthrone.com/

A high-performance system for generating photorealistic product mockups at scale.

Problems solved

• Removed manual mockup creation workflows
• Enabled bulk mockup generation
• Delivered realistic rendering results for ecommerce

Stack

Nuxt.js, NestJS, PostgreSQL, Redis, AWS, GPU rendering, Canvas

🔗 https://craft-music.dev/

A real-time music learning platform connecting instructors and students worldwide.

Key features

• Live video/audio lessons
• Timezone-aware scheduling
• Subscription billing
• Real-time messaging

Stack

Nuxt.js, NestJS, PostgreSQL, WebRTC, GetStream, AWS, Docker

🔗 https://app.boostugc.co/login

A SaaS platform for collecting, managing, and publishing authentic video testimonials for brands and agencies.

Capabilities

• Simplified video review collection
• Multi-brand management for agencies
• Secure video storage and moderation

Stack

Nuxt.js, Vue.js, NestJS, MongoDB, Redis, WebRTC, AWS

🔗 https://augmentive.io/

A health-tech platform for wellbeing and performance optimization.

Capabilities

• Doctor–patient video consultation
• Appointment management system
• Secure payment processing
• User dashboards and session management

Stack

Modern web stack with scalable backend architecture and real-time communication systems.

🔗 https://just.edu.bd/

A full university management and automation system used by a major public university.

Capabilities

• Admissions automation
• Attendance and academic systems
• Payroll and administration tools
• Examination and results management

Stack

Nuxt.js, PostgreSQL, Docker, AWS

Architected a high-fidelity rendering system producing realistic product previews comparable to Photoshop warp tools.

Results

• Reduced rendering latency from 40s → <10s
• Supports 50K+ daily renders
• 99.99% uptime
• Photorealistic ecommerce mockups

Built LLM-powered visual customization pipelines while preserving real-world product constraints and print integrity.

Designed scalable ecommerce infrastructure capable of handling 100K+ products per tenant with efficient search and data isolation.

• Vue.js
• Nuxt.js
• React
• Next.js
• TypeScript
• Tailwind CSS

• Node.js
• NestJS
• FastAPI
• REST APIs
• Microservices

• PostgreSQL
• MongoDB
• Redis
• ClickHouse

• AWS
• Docker
• CI/CD

• Shopify APIs
• Stripe
• WebRTC
• Third-party APIs

I approach projects as products, not just codebases.

That means:

• building scalable systems from day one
• writing clean and maintainable code
• designing architecture that supports long-term growth
• focusing on performance, reliability, and clarity

If you're building:

• a SaaS platform
• a scalable ecommerce system
• an AI-powered product
• a production-ready MVP

Feel free to connect.

LinkedIn
https://www.linkedin.com/in/swadhinz