• Healthcare Claims AI Solution (RevAssist.ai): Developed an AI assistant for claims billing specialists, using hybrid RAG architecture with PostgreSQL pgvector, MySQL natural text, and metadata filtering. Implemented query classification with OpenAI, utilizing Chain-of-Thought techniques. Enabled expert/tribal knowledge integration to enhance accuracy.• AI-powered Web Development: Architected and implemented a web application platform hosted on an ECS cluster, with automated DevOps. Developed an AI assistant, translating user inputs into structured schema plans to be executed in front-end. Fine-tuned model for enhanced performance.• Generative AI Integration: Integrated DALL-E for image generation within the editor, enabling users to create customized visuals. Developed advanced content generation features, including text, styles, animations, and template customization.• Innovative Architecture: Architected a visual version control system inspired by Git, hosted on MySQL with recursive JSON queries and cached with memcached. Emulated standard web development processes visually, enabled visual editing of routers, and achieved perfect Lighthouse score with SSR.• Performance Engineering: Used memcached to achieve 20ms commit retrieval time, rendered SPA on the server (SSR) with Preact, and created an efficient component/module loading mechanism with hydration. Achieved 150ms TTFB and perfect Lighthouse score.• Cloud Infrastructure: Designed AWS-based infrastructure, implementing ECS for load-balanced container orchestration, RDS for database management, and ElastiCache for performance optimization. Built DevOps workflows using CodePipeline and maintained system health with CloudWatch. Used Vite for development and ESBuild for packaging, serving packages with Koa.• E-commerce & Recurring Billing System: Integrated Stripe for seamless payment processing within the platform, managing invoices, subscriptions, and additional services.

• Designed and created client portal (Angular 2+, Node, Koa, MySQL). Enabled customers to submit tickets, manage services, update payment methods, pay outstanding invoices and make purchases. Integrated with Netsuite (ES5 Javascript).• Architected and oversaw development of store, quoting system, license management system and recurring billing system (Angular 2+, Node, Koa, MySQL). Automatic license creation for purchases.• Architected and oversaw development of cloud automation utilities such as VM / user creation, password resets, etc. Backend C# .Net Core, frontend Angular 2 & Koa. Secured with MFA.• Designed and managed development of internal / external ticket management system (Angular & Koa).

• Co-founder of OrderPigeon: Service that updates inventory levels, ships orders and carries shipments between suppliers and e-commerce sites such as Amazon, eBay, Magento and Shopify. Integrated with 50+ vendors such as Keystone, Transamerican, Motorstate, WPS, Ingram Micro, D&H, Papes, etc. Results: more than a million orders shipped with more than $100 million revenue. Reached 100K orders per month. • Co-founder of CatalogSync: product content management system for extracting, transforming and loading product data between vendors and e-commerce sites. Created custom Magento API for faster updates. Results: 300K products / hour load speed on Magento. Completed 12 data projects bringing over $100,000.• Found bottlenecks in Magento websites and implemented performance enhancements. Results: subsecond page loads. Performance improvements of 100% or more for time to first byte. Optimized front-end performance.

• Consolidated company servers and code base. Designed and created a cluster system with load balanced web, email and DNS services, MySQL and Memcached backend and Lustre parallel file system as SAN. 10,000+ websites in a single framework. • Designed and created e-commerce store and billing system that can provision websites and domains. • Created mailer system in PHP cron jobs for newsletters with parallel sending, velocity and acceleration checks that worked on multiple IPs. Improved delivery rates to 150,000 emails/day.

• Created company multi-dimensional OLAP data warehouse. Designed and implemented business analytics dashboard for reporting key performance indicators. Enabled easy and fast daily business intelligence. • Improved performance of the main client report from 15 minutes to 20 seconds using the new data warehouse. • Designed and implemented reports for user acquisition, conversion and retention. Analyzed effectiveness of user acquisition channels, reported effects of user interface changes on user conversion and determined key user actions that drive retention.

• Created dealer channel CRM (Customer Relationship Management) system to execute market segmentation and resource planning strategies. Provided Blackberry interface for sales force in the field. Completed data migration from salesforce.com and older systems. Reached active user base of 400+, consisting of sales force, credit officers, directors and analysts. • Automated data transfer functions between various sources in data warehouse and introduced new technologies for reporting infrastructure. Created and enhanced 20+ business intelligence reports for effective performance management of all channels. • Implemented Six Sigma projects for continuous improvement efforts. Developed email surveys and Opportunity Assessment system to evaluate new ideas.

• Implemented recurring billing solution for company services. Migrated old billing system and saved the company over $50,000 per year. • Integrated VeriSign and PayPal electronic payment solutions to company e-commerce package that is actively used by over 20,000 merchants.

• Innovated new features for optimizing forecast parameters and analyzed data patterns to increase accuracy. Contributed in $2 million international contract by surpassing rivals in forecast contest. • Optimized SQL queries and developed stored procedures that increased data import speed 5 times and improved forecast performance by more than 100%. • Introduced OLAP data warehouse component that enabled future expansions like new algorithms, reports and data mining operations.

• Re-wrote and improved response time of electronic payment server (VISA/Mastercard ISO 8583) from 7-8 seconds to below 1 second on peak days. • Developed temporary credit card process. Increased credit card transactions by more than $50,000 per month. • Solved all problems of recurring billing solution and improved performance, resulting in higher transaction levels: more than 100,000 transactions per month.