AI automation built by operators who lived your pain. Specializing in F&B, HR/Payroll, and Enterprise compliance.
Our Services
Comprehensive technology solutions tailored to your business needs
- React & Next.js
- Python & Node.js
- TypeScript
- RESTful APIs
- OpenAI Integration
- Google Gemini AI
- Custom AI Models
- ML Pipelines
- System Design
- Cloud Architecture
- Microservices
- Database Design
- MVP Development
- Product Strategy
- DevOps & CI/CD
- Performance Optimization
Who We Serve
Deep expertise in the industries we know best — because we've been in your shoes
Our Solutions
- Training automation (FlairAI)
- Menu systems (MenuMate, WaiterAI)
- Wine pairing (VineAI)
- Guest CRM (GuestAi)
- Digital menu optimization
Average 40% cost reduction, 300% revenue increase in wine programs
Our Solutions
- Attendance automation (PunchClock)
- EPF/SOCSO compliance
- Multi-location dashboards
- Biometric integration
- Leave management
Clients save 95% of payroll time, eliminate attendance fraud
Our Solutions
- Document intelligence (Azure AI)
- Compliance automation
- Privacy-first AI assistants
- Blockchain audit trails
- Custom integrations
1,200+ hours saved annually, $3M cost avoidance
Client Success Stories
Real businesses, real results — detailed case studies with measurable ROI
💡 Solution
- Built AI voice training system with Google Gemini + WebSockets
- 70+ realistic scenarios in 6 languages (Malay, English, Mandarin, Tamil, Japanese, Korean)
- Real-time feedback with pronunciation coaching
- Manager dashboard with progress tracking
📈 Results
Tech Stack
"FlairAI cut our training time in half. Staff love practicing in their native languages without fear." — Raj Kumar, F&B Operations Manager
💡 Solution
- Biometric attendance system with face recognition
- Automated payroll calculation with EPF/SOCSO compliance
- Real-time multi-location dashboard
- Google Sheets integration for familiar UX
📈 Results
Tech Stack
"PunchClock turned our 40-hour payroll nightmare into a 2-hour task. We've eliminated attendance fraud completely." — Sarah Lim, Business Owner
💡 Solution
- AI-powered taste profiling quiz
- Food pairing algorithm trained on 10K+ wine-dish combinations
- Interactive sommelier chat interface
- Inventory integration for real-time availability
📈 Results
Tech Stack
"VineAI transformed our wine program from an afterthought to a profit center. 300% ROI in first quarter." — Michael Chen, Restaurant Owner
💡 Solution
- Azure AI Document Intelligence for automated extraction
- Custom compliance rule engine
- Real-time validation dashboard
- Audit trail with blockchain verification
📈 Results
Tech Stack
"W3J's solution saved us 1,200 hours annually and $3M in cost avoidance. Worth every penny." — Operations Director
💡 Solution
- Conversational AI for reservations & orders
- Unified guest profile system
- Automated review response with sentiment analysis
- 24/7 availability across WhatsApp, web, and phone
📈 Results
Tech Stack
"GuestAi handles everything from reservations to feedback while our team focuses on hospitality." — Linda Wong, Restaurant Manager
Featured Projects
Real-world solutions with measurable impact — see how we solve complex problems

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How We Work With You
Transparent pricing, clear deliverables — choose the package that fits your needs
- Requirements workshop
- MVP build
- Basic integration
- 1-month support
- Training documentation
- Source code included
- Full-stack application
- AI integration
- Custom dashboard
- API integrations
- Team training sessions
- 3-month priority support
- Performance optimization
- Security audit
- Dedicated team
- Phased rollout
- ISO compliance
- Custom integrations
- Ongoing optimization
- 24/7 support
- White-label options
- Blockchain audit trails
Not sure which package fits? Let's talk.
Schedule Free 15-Min Discovery CallWhy We Build Differently
From operational chaos to code that heals — our origin story
Born from Real Pain
W3J LLC was born from real operational pain. After 10 years managing F&B operations—drowning in 40-hour manual payroll, attendance fraud, and messy spreadsheets—our founder taught himself to code not to become a developer, but to survive.
A Life-Saving Revelation
When doctors gave his mother 3 days to live in 2023, he used AI to discover a cure no local doctor knew existed. That experience crystallized a mission: technology should lift the struggling, not just serve the privileged.
Built by Operators for Operators
Today, we build systems that have saved 1,200+ hours annually for 50+ businesses across 3 continents—because we remember what it's like to be powerless. Every line of code is a bridge from chaos to control.
We don't just build software — we build solutions that remember the struggle.
Our Technology Advantage
We choose technologies that deliver maximum value with minimum complexity
AI/ML
Why Google Gemini: 2M token context = processes entire employee handbooks in one shot. Multimodal = handles text, images, PDFs without custom OCR. 10x cheaper than GPT-4 for high-volume tasks.
Frontend
Why Next.js + Vercel: Edge rendering = <100ms global load times. Zero-config deployment = ship in hours, not days. Built-in analytics + A/B testing.
Backend
Why Google Apps Script: Zero infrastructure cost (runs on Google's servers). Familiar UX for SMEs (Google Sheets = comfort zone). 95% less maintenance vs. traditional cloud apps.
Infrastructure
Enterprise-grade cloud infrastructure with 99.9% uptime, automatic scaling, and global CDN for lightning-fast performance worldwide.
How We Partner With You
A proven methodology that delivers results every time
Discovery
Free 15-min consultation, pain point diagnosis, ROI projection, tech feasibility check.
- ✓Free 15-min consultation
- ✓Pain point diagnosis
- ✓ROI projection
- ✓Tech feasibility check
Design
Requirements workshop, architecture design, mockups + user flows, fixed-price proposal.
- ✓Requirements workshop
- ✓Architecture design
- ✓Mockups + user flows
- ✓Fixed-price proposal
Build & Test
Agile sprints with weekly demos, user acceptance testing, staff training, documentation.
- ✓Agile sprints (weekly demos)
- ✓User acceptance testing
- ✓Staff training
- ✓Documentation
Support
1-3 month included support, performance monitoring, feature enhancements, scale-up planning.
- ✓1-3 month included support
- ✓Performance monitoring
- ✓Feature enhancements
- ✓Scale-up planning
What Our Clients Say
Don't just take our word for it — hear from businesses we've helped transform
"W3J LLC transformed our business with their AI solutions. The team's expertise and dedication resulted in a 300% increase in operational efficiency."

"Outstanding full-stack development work. They delivered a complex enterprise application ahead of schedule with exceptional quality."

"The AI-powered analytics platform they built has been a game-changer for our business intelligence. Highly recommend their services!"

About W3J LLC
Founded by Muhammad Nurunnabi, W3J LLC specializes in developing robust, scalable, and intelligent software for enterprises, startups, and SaaS operators.
With expertise spanning full-stack development, AI integration, and enterprise architecture, we transform complex business challenges into elegant technical solutions.
Our portfolio demonstrates a proven track record of delivering innovative AI-powered applications, from virtual assistants to video analysis platforms, all built with cutting-edge technologies and best practices.
Business Address
30 N Gould St Ste R
Sheridan, WY 82801
United States
Contact Email
admin@w3jdev.comOur Expertise
Common Questions
Got questions? We've got answers. Can't find what you're looking for? Chat with our AI assistant!
Let's Build Something Great
Ready to transform your business with cutting-edge technology? Get in touch with us today.
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