Hannah Roach

Disney+ Roku Player Team
• Diagnosed a live linear session-state leak where a prior session's livePointPosition survived dispose, causing the playhead to intermittently trail the live edge in subsequent sessions; fixed by adding an explicit reset on session dispose
• Resolved a live-timeline scrub regression for startover-rights content: introduced getBoundaryPosition() in videoNodeController.brs to derive the true program boundary, enabling correct program-rollover triggering when scrubbing behind the live edge
• Delivered the "Additional Broadcasts" broadcast-selector tooltip end-to-end in vNext: implemented player-state gating, 5-second display lifecycle, per-profile recurrence limits, and full unit-test coverage across mixin, controller, and layout paths
• Implemented vNext skip-occurrence reporting to the Media SDK: classified each seek as skipIntro, skipRecap, or skipGeneral and propagated skip type, distance, and direction via videoNode.skipOccurring before every seek event
• Built end-to-end carriage dispute error handling across roku-dmp and dmgz-roku-app: mapped PBO reason blackout.dispute → blackoutDispute before the generic blackout check, added the QoE analytics constant, reported to Conviva as SRVC BLACKOUT_DISPUTE 7016, and surfaced the user-facing message in appBamSdkService.brs
SOPS — Roku Automated Test Harness
• Integrated TVA Watcher API automation for Roku: opted devices in for event scanning, retrieved per-session watcher reports, and forwarded validation results to Darkwing — bringing Roku to parity with BBD and iOS
• Built automated Conviva session validation: on CONVIVA_VALIDATION steps, Paddywhack sends session data to the Hora API, receives Metadex analysis, and surfaces pass/fail results in Darkwing test status updates
• Extended the Darkwing receiver with SELECT_AUDIO_TRACK: resolved language codes (string, array, or comma-separated) to numeric track values from availableAudioTracks, validated currentAudioTrack post-switch with timeout-based reporting, and reset track state between tests for isolation
• Implemented HALT_AND_CONTINUE bookmark-resume automation: captures playback position at halt, rebuilds loadRequest with the saved offset without mutating the original, and validates that playback resumes from the expected position
• Parsed user_name from Flightdeck deep-link query parameters and included it in the REGISTER_DEVICE payload, enabling Darkwing to attribute test sessions to named engineers
• Led a large integration PR consolidating five automation workstreams (continue watching, audio validation, Conviva, query params, and playback completion); verified 20+ Darkwing test suites across captions, audio track changes, seek, pause, stop, and text track selection before merging

• Contribute to Docker's open-source Hardened Images initiative, building and maintaining secure, minimal container images for production Kubernetes and cloud environments
• Authored image definitions and declarative build pipelines integrating upstream source builds with hardened Debian 13/Alpine base images and minimal runtime dependencies, covering 10+ cloud-native components, including Kubernetes Cluster Autoscaler, Calico, SPIRE, and Grafana tooling
• Implemented FIPS-compliant image variants using hardened OpenSSL configurations for regulated and enterprise environments
• Diagnosed and resolved complex build and runtime issues, including shared library resolution, ABI compatibility, and reproducible build failures through code review and compliance validation processes

• Designed and implemented major course module features — pagination, drag-and-drop, module item management, and teacher/student view selectors — improving scalability and usability for large courses on a platform serving millions of students and educators
• Enhanced accessibility across gradebook, announcements, dashboards, and module navigation, improving screen reader compatibility and keyboard navigation compliance
• Optimized application performance by eliminating unnecessary GraphQL queries, resolving infinite rendering loops, and improving loading and state management
• Diagnosed and resolved complex frontend and backend issues affecting module rendering, assignment overrides, pagination, and file uploads in a large-scale production codebase
• Developed and maintained Selenium and unit tests; collaborated cross-functionally with designers, accessibility specialists, and backend engineers through iterative code review

• Designed and provisioned 3 full Azure customer environments from scratch using Terraform, Helm, Ansible, Kubernetes, and Go — including networking, compute, storage, security, and monitoring resources
• Migrated 10 existing customer environments into Infrastructure as Code (IaC) frameworks, incorporating legacy infrastructure into modern cloud-native solutions
• Refactored infrastructure to support dynamic resource creation via customizable configuration files, enabling teams to toggle modules without manual intervention
• Configured CI/CD pipelines, deployed Helm charts, and managed Kubernetes resources to ensure consistent, reliable application deployments
• Developed automation scripts for cross-registry image transfers, artifact uploads, and VM resizing to optimize resource utilization

• Developed an agent-to-user chat window enabling agents to manage multiple simultaneous conversations, with dynamic tab colors indicating response time
• Upgraded the application to react-admin 4.14 and MUI v5.14.11, modernizing the dependency tree and unblocking future feature development
• Refactored the application from inline CSS to a structured SCSS file system; designed and shipped pages, modals, and push notifications

• Built a front-end testing framework from the ground up using Selenium WebDriver, xUnit, C#, and the Page Object Model, enabling QA engineers to write and maintain their own automated tests
• Designed and implemented an interactive sidebar navigation and breadcrumb system driven by the application's route hierarchy
• Refactored authentication to use Microsoft Identity Library (MSAL) for Azure B2C graph calls, enabling seamless CRUD operations on B2C users
• Integrated Azure Key Vault into the application to harden secret management and reduce credential exposure risk

• Built a Python data visualization tool for the ICBM Minuteman III program that translated binary telemetry into standalone and real-time visualizations, enabling engineers to identify anomalies and improve system performance
• Extended the F-22 OTE Real-Time Data Management system using C#, WPF, WCF, Entity Framework, and MS SQL — delivering features for procedure loading, test documentation, report generation, and issue resolution for F-22 test engineers

• Built internal web application features to automate the resolution of recurring data issues, reducing manual DevOps intervention
• Improved application performance, resolved bugs, and wrote front-end and back-end tests following TDD practices
• Supported DevOps with PostgreSQL query optimization and database maintenance

• Designed and refactored Veracity's Naval Synchronization Toolset (NST) in C#, enabling Naval Aviation Enterprise managers to make data-driven F/A-18 inventory decisions
• Built a Python simulation of Naval Station Great Lakes with visualizations and tests across the full process pipeline

• Developed statistical models to forecast call volume, customer enrollments, product conversion, employee attrition, and customer satisfaction
• Built dynamic, interactive reports for Operations, Client Services, Finance, Marketing, and Carrier Integrations using MS SQL and IBM Cognos
• Performed text analysis on customer surveys and surfaced real-time insights to inform employee bonus structures and marketing strategy recommendations

• Launched Customer Care's adoption of Oracle RightNow Analytics, delivering dynamic reports to track performance trends and manage Service Level Agreements
• Supported system rollouts and upgrades while facilitating communication between technical teams and business stakeholders