
About
Professional summary
I'm a Lead Software Engineer and product builder with 10+ years of experience building software products, scalable backend systems, eCommerce platforms, SaaS applications, and AI-powered automation. I work across software engineering, system architecture, infrastructure, DevOps, and business automation, with a focus on turning complex technical problems into reliable systems that help businesses operate efficiently and grow.
Career
Nazmul Khalid is a Lead Software Engineer with 10+ years of professional experience in software development, spanning product engineering, system architecture, infrastructure, and AI-powered automation.
How I work
I look for the constraint that will actually break the system — a race condition, a shared-hosting limitation, a compliance boundary — and design around it before writing the rest of the feature. Where possible, I enforce correctness structurally instead of trusting every caller to remember a check: a database index that makes a double-booking impossible rather than a race-prone application check, a query extension that scopes every tenant lookup rather than a convention every new endpoint has to follow. And I test the two things a mock can't tell you anything about — concurrency and money — because that's where defects that "look done" actually hide.
Technical expertise
Core Engineering
- Node.js
- TypeScript
- JavaScript
- PHP
- Laravel
- React
- Next.js
- Flutter / Dart
Backend & Architecture
- REST APIs
- SaaS Architecture
- Multi-tenant Systems
- Distributed Systems
- Database Architecture
- System Integration
- Authentication & Authorization
Infrastructure & DevOps
- Docker
- Linux
- Nginx
- AWS
- VPS / Cloud Infrastructure
- CI/CD
- GitHub Actions
- Server Monitoring
- Security & Deployment
AI & Automation
- AI-powered applications
- AI agents / workflows
- LLM integrations
- Business process automation
- AI-assisted content systems
- API-based AI integrations
Business / Product
- eCommerce Systems
- SaaS Products
- Business Automation
- Product Architecture
- Technical Strategy
- System Optimization