Worked on expressvpn/wolfssl-rs and expressvpn/lightway, focusing on cross-platform cryptographic support and CI reliability. Delivered RISC-V target support by configuring new runners, linker settings, and architecture-specific build adjustments using Rust, C, and Shell. Enhanced cryptographic capabilities by enabling 4096-bit RSA/DH keys and expanding DER-encoded test coverage for TLS/DTLS. Improved CI pipelines with adaptive test timeouts and standardized architecture naming to ensure reproducible builds and stable deployment across platforms. Addressed test data longevity by extending certificate lifetimes, reducing flake-related failures. Demonstrated depth in build system configuration, cross-compilation, and certificate management while maintaining robust testing practices throughout development.