• Shipped Wittly an AI platform using React and Next.js with TypeScript on top and Node.js with Express plus Python with FastAPI under the hood saving teachers 3-5 hours per week and making IEP docs 40-50% faster. • Built a teacher console with React Query Redux Toolkit Tailwind CSS Material UI and accessibility checks lifting parent engagement 30%+. • Deployed and orchestrated serverless APIs with AWS Lambda, enhancing scalability and cost efficiency for peak usage periods. • Designed MongoDB schemas with indexing and aggregation added Redis caching and streamed updates via WebSockets and Server Sent Events. • Exposed REST and GraphQL APIs with OAuth2 and JWT and split auth into NestJS services to clarify scopes and roles. • Standardized delivery with Docker and GitHub Actions plus unit tests integration tests linting type safety code reviews Clean Architecture domain driven design and performance profiling.

• Scaled real time financial crime screening with Python and Node.js microservices and Angular dashboards meeting millisecond SLAs. • Integrated KYC providers over REST with OAuth2 and JWT storing auditable data in PostgreSQL and MongoDB using SQL indexes. • Developed efficient ETL pipelines using Django and Flask, integrating task queues and schedulers to deliver curated data seamlessly via GraphQL. • Improved reliability with Docker GitHub Actions unit and integration tests performance profiling and code reviews.

• Delivered a comprehensive e-commerce platform incorporating POS and inventory management systems using React, Node.js, and MongoDB with live inventory tracking and Shopify integration, boosting online sales to account for 25% of total revenue within the first year. • Shipped a healthcare app on Python Django and PostgreSQL with Redis sessions and OAuth2 JWT auth No shows fell around 25%. • Delivered SaaS accounting and reporting with GraphQL APIs and MySQL moving heavy jobs to background task queues and schedulers. • Built a legal case portal with Server Sent Events reminders and SQL driven deadlines nearly eliminating misses. • Created a digital learning portal in React with Redux Toolkit and React Query that improved completion rates and accessibility.

• Digitized loan intake with web forms and rule checks adding Java validators and a small C++ batch tool Approvals dropped to 2–3 days. • Supported front-end builds in WordPress and early AngularJS projects for SME clients.