Ajay Sehwal developed and delivered external self-pay invoice recognition for the getAlby/hub repository, focusing on backend development using Go and Lightning Network protocols. His work enabled the system to automatically detect and process invoices generated outside LND by matching incoming transactions with corresponding payment hashes, reducing the need for manual reconciliation and supporting seamless cross-system settlements. Ajay updated and expanded test coverage to address multiple edge cases, ensuring robustness and reliability in invoice handling. By aligning external invoice processing with existing flows, he improved operational consistency and cash-flow visibility, demonstrating a solid understanding of backend integration and payment infrastructure challenges.