Worked on the zephyrproject-rtos/openthread repository, delivering core enhancements to IPv4 and IPv6 header management, NAT64 port translation, and CLI interface consistency using C and C++. Addressed symbol collisions to improve LWIP integration and implemented dynamic port translation per NAT64 RFCs, supporting robust network protocol interoperability. Refactored CLI binding logic to unify default behavior across Thread nodes, clarifying host interface usage and improving deployment reliability. Later, stabilized TREL DNSSD builds by conditionally compiling platform functions, preventing build failures when certain configurations were disabled. This work emphasized protocol implementation, embedded systems, and network programming, ensuring reliable cross-configuration builds and maintainable code.