Stage 012010
Started Freelance Development
Began building Wordpress websites and e-commerce for local and international clients.
Evolution point
Available for selected freelance projects
I build intelligent digital products that automate work and accelerate growth.
Focus:Full-Stack DevelopmentMobile AppsAI AutomationSaaS ProductsAPI IntegrationIntelligent WorkflowsBusiness Systems
I'm a freelance full-stack developer and AI automation specialist helping startups and businesses build fast, scalable, secure, and conversion-focused digital products.
- Worldwide availability
- Fast communication
- Production-ready code
- Long-term support
AI System
Architecture
Trusted by startups, agencies, and growing businesses
- Worldwide client support
- Reliable communication
- Secure development
- On-time delivery
About
More than a developer — a technical partner for your business.
I combine engineering, automation, design, and business strategy to turn complex problems into reliable digital products.
ID · 0x00A7FLive
response
<24h
availability
Open
Bangladesh — Available Worldwide
Usually replies within 24 hours
I enjoy solving complex technical problems and turning ideas into useful, reliable digital products. My work combines development, automation, user experience, and business strategy. I care about clean code, scalable architecture, security, and the small details that make products feel premium.
I understand business goals, not only code
I help simplify complex technical problems
I design systems for scalability
I care about user experience
I communicate clearly and consistently
I provide long-term support after launch
Areas of expertise
- Full-Stack Web Development
- AI Automation & Agents
- SaaS Architecture
- API & Platform Integration
- Mobile apps (Lynx.js)
- Performance Optimization
- Security Best Practices
- DevOps & Deployment
Values
- Reliability
- Simplicity
- Transparency
- Continuous learning
- Quality
- Ownership
- Security
- User-focused thinking
Career trajectory
Built in stages. Refined through real-world work.
04 milestones
- Stage 022015
Moved Into Full-Stack Systems
Expanded into backend systems, databases, and SaaS-style product architecture.
Evolution point - Stage 032020
Mobile Apps & API Integration
Started building mobile apps and Headless CMS integrations for clients and agencies.
Evolution point - Stage 04Now
Added AI Automation Focus
Started building AI agents, RAG systems by LangGraph, and n8n-based automation workflows.
Evolution point
Services
Premium services for serious products.
Six core service tracks that cover the full lifecycle — from architecture and AI automation to optimization and long-term support.
01
Full-Stack Web Development
Scalable web applications, end to end.
Build scalable web applications using modern frontend, backend, database, and cloud technologies.
Key deliverables
- Responsive frontend
- Backend APIs
- Authentication
- Database integration
Next.jsTypeScriptNode.jsPostgreSQL
02
AI Automation
Automate repetitive work with AI agents and workflows.
Automate repetitive work and connect business tools using AI and workflow automation.
Key deliverables
- n8n workflows
- AI agents
- CRM automation
- Email automation
n8nMakeOpenAIClaude
03
SaaS Product Development
From idea to a secure, scalable software product.
Transform ideas into secure and scalable software products.
Key deliverables
- Product architecture
- Subscription system
- User management
- Dashboard
Next.jsStripePostgreSQLPrisma
04
API and Platform Integration
Connect platforms, apps, and third-party services.
Connect platforms, applications, databases, and third-party services.
Key deliverables
- REST APIs
- GraphQL APIs
- OAuth
- Webhooks
Node.jsExpressNestJSGraphQL
05
Custom Business Systems
Internal tools that reduce manual work.
Build internal tools that improve operations and reduce manual work.
Key deliverables
- CRM systems
- Inventory tools
- Reporting dashboards
- Custom admin panels
Next.jsPostgreSQLPrismaTailwind CSS
06
Performance and Optimization
Faster, safer, more stable products.
Improve speed, security, stability, and user experience.
Key deliverables
- Core Web Vitals optimization
- Database optimization
- Security review
- Code refactoring
LighthouseVercel AnalyticsCloudflareRedis
Technology ecosystem
A connected technology ecosystem, not a skill bar chart.
Tools and technologies organized by category, picked for production reliability, not resume padding.
Frontend
- React
- Next.js
- TypeScript
- JavaScript
- Tailwind CSS
- Framer Motion
- HTML
- CSS
- Astro
Backend
- Node.js
- Express
- Hono
- PHP
- CodeIgniter
- WordPress
- REST API
- GraphQL
Database
- PostgreSQL
- MySQL
- MongoDB
- Redis
- Supabase
- Firebase
- PGVector
- Qdrant
AI & Automation
- OpenAI
- Claude
- AI agents
- RAG
- Embeddings
- LangChain
- n8n
- Make
- Webhooks
DevOps & Tools
- Git
- GitHub
- Docker
- Vercel
- AWS
- Cloudflare
- Linux
- CI/CD
- Postman
Connected stack
Each layer communicates cleanly. AI sits at the center, automations wrap around, and analytics close the loop.
Selected work
Featured projects with real architecture behind them.
A selection of recent work across AI automation, full-stack web apps, and platform integrations. Open any project for the full case study.
Why work with me
Reasons clients trust me with their products.
A pragmatic mix of engineering discipline, business focus, and reliable communication.
Business-focused development
Code serves outcomes — every decision is tied back to your goals.
Clear communication
Plain-language updates, no jargon walls, no surprises.
Clean, maintainable code
Readable, typed, and structured so your team can keep building.
Reliable delivery
Realistic timelines, milestone-driven progress, on-time launches.
Scalable architecture
Systems designed to grow with your users and revenue.
Security-first mindset
Validation, auth, secrets handling, and headers done right.
Performance optimization
Fast pages, strong Core Web Vitals, and low JS payloads.
Responsive design
Looks and works great across mobile, tablet, and desktop.
Transparent workflow
You always know what's being built, why, and what's next.
Long-term support
I stick around after launch for maintenance and growth.
AI & automation expertise
Production-grade AI agents, RAG, and workflow automation.
Flexible collaboration
Fixed price, hourly, retainer, or embedded partnership.
140+
Completed Projects
55+
Happy Clients
14+
Years of Experience
98%
Client Satisfaction
20+
Automated Workflows
5+
Countries Served
Testimonials
Trusted by Clients.
Every project is built with quality, transparency, and attention to detail. Here's what my clients have to say about working with me.
“Fantastic service! Subbir was amazing to work with and demonstrated exceptional attention to detail throughout the project. He completed everything ahead of schedule excellent communication, and delivered exactly what I was expecting.”
SI
Sazin Islam
CEO & Founder · SR Power
AI Automation
Find me on
Profiles across freelance platforms.
Connect, review past work, or start a project on the platform you're most comfortable with.
Available for selected freelance projects
Let's turn your idea into a high-performing digital product.
Whether you need a website, web application, automation workflow, AI solution, or technical partner — I'm ready to help.
Start a ProjectShare your goals and project details · Usually replies within 24 hours
Writing
Engineering insights from real-world projects.
Explore AI automation, n8n, RAG, SaaS architecture, APIs, security, and performance through practical guides and technical deep dives.
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Building an AI Sales Engineer for an Electronics Store with Hybrid RAG & LangGraph
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Building an AI Facebook Page Manager That Never Sleeps
The engineering journey behind building an AI-powered Facebook Page Manager that answers messages, moderates comments, captures leads, and hands conversations back to humans whenever needed.
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How I Built a Serverless Dynamic Social Media Card Generator with n8n, Express & Puppeteer
How I built a zero-storage, serverless social media card generator using n8n, Express, Puppeteer, and Vercel while working within a tight client budget.
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Contact
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