
Over a two-month period, contributed to the instructure/canvas-android repository by developing three security-focused features using Kotlin, Java, and Android development best practices. Introduced feature-flag controlled messaging actions and role-based access controls, enabling configurable user experiences and tighter policy compliance across Teacher, Parent, and Student apps. Implemented per-app behavior for messaging, restricted student access to files and calendar event creation, and integrated these controls with existing UI layers. Leveraged dependency injection and unit testing to ensure maintainability and safe rollout. The work reduced risk of data exposure, improved admin control, and established a scalable foundation for future access management enhancements.
September 2025 — Implemented feature-flag-based RBAC controls in the Canvas Android app, delivering two targeted security-focused improvements and laying a foundation for scalable access management: (1) student file access restricted via a new feature flag (restrict_student_access) affecting FileListFragment and inbox flows; (2) calendar event creation gated for students using a CalendarBehavior interface and a StudentCalendarBehavior implementation. Both changes integrate with existing UI layers to enforce role-based access, enabling safer rollout and quicker rollback if needed. These efforts reduce risk of data exposure and improve admin control over student capabilities, while preserving user experience for roles with permissioned access.
September 2025 — Implemented feature-flag-based RBAC controls in the Canvas Android app, delivering two targeted security-focused improvements and laying a foundation for scalable access management: (1) student file access restricted via a new feature flag (restrict_student_access) affecting FileListFragment and inbox flows; (2) calendar event creation gated for students using a CalendarBehavior interface and a StudentCalendarBehavior implementation. Both changes integrate with existing UI layers to enforce role-based access, enabling safer rollout and quicker rollback if needed. These efforts reduce risk of data exposure and improve admin control over student capabilities, while preserving user experience for roles with permissioned access.
August 2025 monthly summary for instructure/canvas-android: Delivered feature-flag controlled messaging actions across Inbox with per-app behavior and access tightening. Implemented per-app visibility rules: Teacher app honors the send_individual flag; Parent/Student apps default to non-restricted behavior; when restricted_student_access is enabled, delete and Reply All are hidden across all apps. This work strengthens security, policy compliance, and user experience by enabling configurable, safe messaging actions and reducing surface area for students. Key commits include 82275d0ed6d7933b1fa2dd3dddb1d61d0c147b34 and 5a7f974863a1d2c63e16d46d3180604226993040.
August 2025 monthly summary for instructure/canvas-android: Delivered feature-flag controlled messaging actions across Inbox with per-app behavior and access tightening. Implemented per-app visibility rules: Teacher app honors the send_individual flag; Parent/Student apps default to non-restricted behavior; when restricted_student_access is enabled, delete and Reply All are hidden across all apps. This work strengthens security, policy compliance, and user experience by enabling configurable, safe messaging actions and reducing surface area for students. Key commits include 82275d0ed6d7933b1fa2dd3dddb1d61d0c147b34 and 5a7f974863a1d2c63e16d46d3180604226993040.

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