# Pradhumn Gautam > Pradhumn Gautam is a software engineer at QodexAI building backend infrastructure, reliable data systems, and AI products. Explore projects and engineering notes. This is Pradhumn's personal engineering portfolio. Project verification describes local tests; architecture documents and repositories provide the supporting evidence. Technical articles link to their original publication on Hashnode. ## Profile - [Profile and experience](https://www.pradhumn.com/index.md): Current role, employment history, technical stack, and public contact links. ## Projects - [Webhook Delivery Platform](https://www.pradhumn.com/projects/webhook-platform/index.md): Durable, multi-tenant event delivery. - [Inventory Reservation System](https://www.pradhumn.com/projects/inventory-system/index.md): Correct checkout under contention. - [Paytm Payment System](https://www.pradhumn.com/projects/payment-system/index.md): Transactional peer-to-peer wallet. ## Writing - [Engineering notes](https://www.pradhumn.com/writing/index.md): Article summaries and original publication links. ## Optional - [Complete portfolio text](https://www.pradhumn.com/llms-full.txt): Profile, experience, project details, and article summaries in one document. - [Portfolio website](https://www.pradhumn.com/): Human-readable version.