Overview HLD to LLD conversion and technical design documentation. Hands-on with APIs (REST, SOAP), microservices. Integration patterns (event-driven, batch, synchronous, asynchronous). Experience in telecom OSS, BSS environments. Exposure to at least one area: Wireless usage, billing (CDR, rating), inventory, provisioning systems.

HLD LLD Design Execution

Sequence diagrams

Interface specifications and data mappings

Ensure clarity for development and testing teams

Integration Design & Delivery

API integrations (REST, SOAP)

Event-driven or batch integration patterns

Support integration across telecom systems such as: CRM, Order Management, Billing, Usage systems, OSS and Inventory platforms

Telecom Domain Application

Wireless usage

Apply understanding of

End-to-end service lifecycle (order usage billing)

Error Handling & Data Integrity

Error handling and retry me...