billing systems , Algorithms, Software Development, Testing, Software Design, Programming Languages, Distributed Systems, data structures, subscription management best practices, cloud billing architecture, accessible technologies, subscription lifecycle management, financial transaction processing

multithreading, MVVM, Objective-c, concurrency, Ios, Coredata, Memory Management, Uikit, Design Patterns, Mvc, Restful Apis, Swift, synchronisation, SwiftUI, industry best practices, development methodologies, offline functionality, software engineering principles, JSON-based services, GraphQL APIs, mobile application lifecycle management, application performance optimisation

Lacp, Arp, C, Ipv4, MSTP, Ipv6, VLAN, BGP, routing, Rstp, Vxlan, OSPF, switching, IS-IS, EVPN, STP, packet forwarding, packet processing, dataplane concepts, Layer 3 protocols, Linux-based development environments

C, Systems Programming, Linux Development, Kvm, Tcp, Operating Systems, shell scripting, Ethernet, Python, Perl, routing, Computer Architecture, RoCE, infiniband, Ip, Hyper-V, multi-threaded applications, RDMA, switching, qemu, Linux kernel internals, fabric performance analysis

.NET, react.js , security tools , threat modeling , Microservice architecture, SQL Server, Authentication, Cloud Architecture, Storage technologies, Saas, Iaas, Azure Functions, Networking, App Services, Microsoft Azure, Authorization concepts, Auth0 Identity server, Service Fabric, SDL process, Containerized environments, Secure software development practices, DevOps practices, Infrastructure As A Service, PaaS architecture