All My Projects
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Poster QR Solutions Platform
Complete re-architecture of QR platform for 20,000+ venues globally. Rebuilt from scratch with modern stack, achieving 99.95% uptime and driving 90% increase in client sales.
- Migrated from Next.js/PHP to Vite/Node.js architecture
- Integrated QR Menu, QR Payments, QR Reviews, and Hub modules
- UI/UX redesign with API optimization that directly impacted revenue
- Eliminated legacy code bottlenecks, improved build times significantly
- Serving 20,000+ restaurants and venues worldwide
React
TypeScript
Vite
Node.js
NestJS
MongoDB
Redis
Fintech Microservices Platform
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Fintech Microservices Platform
Event-driven microservices architecture for payment processing and user activity tracking with real-time analytics and modern UI.
- Built microservice consolidating user activity data for product decisions
- Implemented event pipeline with Redis/BullMQ processing thousands of real-time events
- Led full UI/UX redesign and migration from Ant Design to Material UI
- Refactored monolithic codebase into microservices within Nx monorepo
- Improved system responsiveness for payment workflows
React
TypeScript
Node.js
NestJS
PostgreSQL
Redis
BullMQ
Material UI
Nx Monorepo
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HubSpot Messenger Integration
Custom automation system connecting HubSpot CRM with customer messaging platform, eliminating manual processes and saving $60K annually.
- Automated customer communications workflow
- Reduced manual processes saving company $60K+ annually
- Real-time webhook integration between HubSpot and messaging platform
- Custom REST API endpoints for bidirectional data sync
- Built with Express.js for high performance and reliability
Node.js
Express
TypeScript
Webhooks
REST API
HubSpot API
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Avalon
Full-stack development of a high-end corporate website for a leading construction firm. Designed to drive lead generation and showcase a premium property portfolio.
- Secure client access to billing and activity data
- Document sharing and management system
- Role-based access control with scoped API keys
- Modular architecture for easy customization
- Authentication powered by Clerk
Next.js
Headless CMS
TypeScript
SCSS
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Playball
Developed a comprehensive marketplace for the Lithuanian sports market, bridging the gap between facility owners and athletes.
- Built a comprehensive marketplace for the Lithuanian sports market, bridging the gap between facility owners and athletes.
- Built UI components, dashboards, and admin panels
- Built a comprehensive marketplace for the Lithuanian sports market, bridging the gap between facility owners and athletes.
- Built a comprehensive marketplace for the Lithuanian sports market, bridging the gap between facility owners and athletes.
React
Next.js
NestJS
PostgreSQL
Material UI
TypeScript