Portfolio
Over 20 years, I’ve architected and built software systems that solve complex business problems.
Below are my key products, showcasing technical depth, architectural vision, and the ability to
deliver enterprise-grade solutions from concept to production.
🏆 TAXPRO — Flagship Platform
TaxPro is my flagship platform—a comprehensive enterprise tax planning and calculation system.
This project showcases my complete capabilities as an architect, engineer, and technical leader.
The Challenge
Build an enterprise-grade platform that manages 1000+ complex tax calculations with real-time
multi-user collaboration, handles millions of worksheets, maintains sub-second performance,
and achieves massive storage efficiency.
The Solution
Architected and built TaxPro from the ground up with:
- Sophisticated real-time collaboration engine using WebSocket
- Custom formula engine with intelligent dependency tracking
- Redesigned cell storage system achieving 95%+ size reduction
- Multi-tenant architecture with enterprise-grade isolation
- Advanced caching and performance optimization
Key Metrics
1000+
Tax calculations with intelligent dependency management
95%+
Database size reduction (150 GB → 6-8 GB)
Real-Time
Multi-user collaboration with synchronization
Enterprise
Multi-tenant isolation with role-based access control
Technical Architecture
Frontend
Modern React application with TypeScript. Real-time UI updates via WebSocket,
optimistic updates with rollback support, advanced cell rendering, and formula editor.
Backend
Node.js/Express server handling real-time communication, business logic, and data validation.
WebSocket infrastructure for real-time collaboration with conflict resolution.
Database
PostgreSQL with sophisticated JSONB strategies. Optimized cell storage through:
- CellType enum redesign (DESCRIPTOR, USER_DEFINED, FORMULA, CONSTANT)
- Field cleanup (removed 8 unnecessary fields per cell)
- Diff-based snapshotting (value !== defaultValue filtering)
Performance
Redis caching, query optimization, sub-second formula evaluation,
and intelligent snapshot strategies.
Major Achievements
- Designed and implemented sophisticated formula engine with 1000+ tax calculations
- Achieved 95%+ database size reduction through schema optimization (142-144 GB savings)
- Built real-time collaborative worksheet system with WebSocket infrastructure
- Implemented advanced snapshot & restore strategies with minimal payload design
- Architected multi-tenant system with complete firm and client isolation
- Designed CellType enum system with 4 distinct types replacing overloaded STATIC
- Created comprehensive audit logging and change tracking system
- Built role-based access control with hierarchical permissions
- Implemented Redis caching for performance optimization
What This Demonstrates
- Full-stack architectural expertise (frontend, backend, database)
- Deep database optimization and schema design skills
- Real-time system design and WebSocket implementation
- Complex domain expertise (tax calculations and financial systems)
- Scalability and performance engineering at enterprise scale
- Technical decision-making and hands-on implementation
- Team leadership and product vision execution
Other Products & Projects
Beyond TaxPro, Maigha Inc has developed several other products showcasing
different technical expertise areas.
Maigha Platform
Core Infrastructure
The foundational infrastructure supporting all Maigha products. Provides shared services,
authentication systems, common utilities, and scalable infrastructure patterns used
across the product ecosystem.
Aura AI
AI/ML Solutions
AI-powered enterprise solutions leveraging machine learning and advanced algorithms.
Demonstrates expertise in implementing intelligent systems and data-driven features.
MultiMagix
Media Platform
Media and platform solutions showcasing full-stack development capabilities and
user experience design. Handling complex media workflows and distribution.
AppAnySite
SaaS Platform
SaaS website hosting platform demonstrating scalable infrastructure, multi-tenant architecture,
and platform-as-a-service design patterns.
Core Competencies Demonstrated
Enterprise Architecture
Designing scalable, mission-critical systems with attention to performance, security, and maintainability.
Full-Stack Development
Modern web stack: TypeScript, React, Node.js, PostgreSQL, real-time systems, API design.
Database Optimization
PostgreSQL expertise, JSONB strategies, schema design, query optimization, achieving massive size reduction.
Real-Time Systems
WebSocket architecture, multi-user synchronization, conflict resolution, change tracking.
Complex Domains
Tax calculations, financial systems, formula engines with dependency graphs and circular reference handling.
Product Leadership
End-to-end product thinking, architectural vision, technical strategy, and hands-on execution.
Interested in Discussing Technical Challenges?
Whether you’re exploring partnerships, seeking architectural guidance, or discussing
how these approaches could solve your challenges—let’s connect.