Bas worked on cryptographic modernization and dependency management across Cloudflare’s infrastructure, focusing on backend development and security. In the cloudflare/boring repository, Bas upgraded the default cryptographic curve to X25519MLKEM768 for server-side connections, aligning with modern browser and edge defaults to enhance interoperability and security. The implementation included client advertising support for the new curve, improving compatibility with Cloudflare edge services. In cloudflare/cloudflared, Bas delivered a targeted update to golang.org/x/crypto and related dependencies, using Go modules to strengthen security and maintain build reproducibility. The work demonstrated depth in cryptography, dependency management, and backend engineering using Go and Assembly.