Daniel King enhanced account security and multi-factor authentication workflows across the FusionAuth/fusionauth-typescript-client, fusionauth-client-builder, and fusionauth-netcore-client repositories. He developed a tenant-configurable password validation rule that blocks passwords matching user login identifiers, reducing the risk of credential-based attacks. Daniel also enriched MFA telemetry by adding authenticationType to the Lambda context, improving troubleshooting and risk assessment. His work demonstrated strong backend development skills in C#, TypeScript, and AWS Lambda, with careful attention to security best practices and cross-repository consistency. The features delivered measurable improvements in password policy enforcement and MFA visibility, reflecting a thoughtful, security-focused engineering approach.