govuk-one-login/mobile-android-one-login-app
Oct 2024 – Oct 2025
13 Months active
Languages Used
GradleJavaKotlinYAMLTOMLShellXMLproperties
Technical Skills
API IntegrationAndroid DevelopmentCoroutinesDependency InjectionFirebaseFirebase App Check
Bianca Mihaila
PROFILE
Bianca Mihaila
Bianca Mihaila engineered and maintained the govuk-one-login/mobile-android-one-login-app, delivering over a hundred features and nearly as many bug fixes in just over a year. She focused on secure authentication flows, robust local and biometric authentication, and seamless integration of Wallet SDK and CRI Orchestrator, using Kotlin and Jetpack Compose. Her work included implementing certificate pinning, deep linking, and analytics with GA4, while modernizing the UI to meet accessibility and design standards. Through rigorous CI/CD automation, dependency management, and comprehensive testing, Bianca ensured the app’s reliability, security, and maintainability, demonstrating depth in Android development and backend integration.
Overall Statistics
Feature vs Bugs
56%Features
Repository Contributions
381Total
Bugs
91
Commits
381
Features
116
Lines of code
51,867
Activity Months13
Your Network
306 peopleSame Organization
@digital.cabinet-office.gov.uk297
Work History
October 2025
26 Commits • 10 Features
Oct 1, 2025October 2025 focused on reliability, security, and observability for govuk-one-login/mobile-android-one-login-app. Delivered offline stability fixes, strengthened authentication flows with DPoP, added certificate pinning for DVLA integration, improved token persistence with local-auth aware expiry, and enhanced diagnostics by logging AppIntegrity errors to Firebase Crashlytics. These changes reduce user friction in limited connectivity, harden security, and improve operational visibility across the mobile app.
26 Commits • 10 Features
Oct 1, 2025October 2025 focused on reliability, security, and observability for govuk-one-login/mobile-android-one-login-app. Delivered offline stability fixes, strengthened authentication flows with DPoP, added certificate pinning for DVLA integration, improved token persistence with local-auth aware expiry, and enhanced diagnostics by logging AppIntegrity errors to Firebase Crashlytics. These changes reduce user friction in limited connectivity, harden security, and improve operational visibility across the mobile app.
October 2025
September 2025
45 Commits • 9 Features
Sep 1, 2025September 2025 monthly performance summary for govuk-one-login/mobile-android-one-login-app. The month focused on stabilizing the login/deeplink flow, modernizing UI, integrating Wallet SDK updates, and tightening the release process. Key features delivered include Wallet deletion error handling, login deeplinking domain support, Wallet SDK upgrades, UI modernization with GdsTopAppBar, and CI/CD improvement to publish Prod only on merge-to-main. Major bugs fixed span linting issues, credential/deeplink handling, secure store token management, and deep-link reliability across app states (including full-app closure and biometrics-disabled scenarios). Overall impact: more reliable user onboarding, stronger token security, and smoother production releases with higher test coverage. Technologies demonstrated: Android/Kotlin, Wallet SDK v2.x, secure store and biometrics handling, deep linking, UI components (GdsTopAppBar), App Bundle/ProGuard readiness, minifyR8, and CI/CD automation.
September 2025
45 Commits • 9 Features
Sep 1, 2025September 2025 monthly performance summary for govuk-one-login/mobile-android-one-login-app. The month focused on stabilizing the login/deeplink flow, modernizing UI, integrating Wallet SDK updates, and tightening the release process. Key features delivered include Wallet deletion error handling, login deeplinking domain support, Wallet SDK upgrades, UI modernization with GdsTopAppBar, and CI/CD improvement to publish Prod only on merge-to-main. Major bugs fixed span linting issues, credential/deeplink handling, secure store token management, and deep-link reliability across app states (including full-app closure and biometrics-disabled scenarios). Overall impact: more reliable user onboarding, stronger token security, and smoother production releases with higher test coverage. Technologies demonstrated: Android/Kotlin, Wallet SDK v2.x, secure store and biometrics handling, deep linking, UI components (GdsTopAppBar), App Bundle/ProGuard readiness, minifyR8, and CI/CD automation.
August 2025
15 Commits • 4 Features
Aug 1, 2025Month 2025-08 focused on strengthening reliability, security, and user experience for govuk-one-login/mobile-android-one-login-app. Key work included upgrading core dependencies (Wallet SDK to latest stable and authentication library), hardening production network configurations with correct pinning and URLs, implementing testability enhancements for token expiry flow, fixing in-memory deep link handling to prevent stale state, adopting the Design System v2, and adding runtime security checks to detect debuggers in release builds. These efforts reduce re-auth prompts, improve stability and performance, enhance security posture, and align the app with design standards.
15 Commits • 4 Features
Aug 1, 2025Month 2025-08 focused on strengthening reliability, security, and user experience for govuk-one-login/mobile-android-one-login-app. Key work included upgrading core dependencies (Wallet SDK to latest stable and authentication library), hardening production network configurations with correct pinning and URLs, implementing testability enhancements for token expiry flow, fixing in-memory deep link handling to prevent stale state, adopting the Design System v2, and adding runtime security checks to detect debuggers in release builds. These efforts reduce re-auth prompts, improve stability and performance, enhance security posture, and align the app with design standards.
August 2025
July 2025
29 Commits • 8 Features
Jul 1, 2025Month: 2025-07 — concise monthly summary for govuk-one-login/mobile-android-one-login-app highlighting key features, major fixes, impact, and technologies demonstrated. Key features delivered: - Implemented UI accessibility enhancements with focus colors across all buttons; focus color fix propagated to mobile UI. - Upgraded UI components: replaced all button components with v2. - CI/CD and release automation improvements: updated to enable tag pushes on push to main, added docs triggers, and workflow stabilization; updated CRI Orch to 0.57.4. Major bugs fixed: - Linting issue resolved to improve code quality and CI reliability. - Firebase AppCheck: catch generic errors and added error logging for FirebaseAppCheck. - Login flow: improved error handling to provide clearer failure modes. - Signin accessibility: fixes to ensure accessibility requirements are met. - Various dependency/build tweaks to prevent crashes (attestation checks, ID-Check crash fixes, and versioning publish fixes). Overall impact and accomplishments: - Improved accessibility and user experience, especially for assistive tech users. - Increased release velocity and reliability through CI/CD improvements and stable dependencies. - Reduced crash surface in critical auth flows through improved error handling and SDK compatibility. Technologies/skills demonstrated: - Android UI development (focus states, button components) - Accessibility best practices - Firebase AppCheck integration and logging - Dependency and SDK management (CRI Orch, attestation checks) - Build tooling and CI/CD (GitHub Actions, version publishing, tagging)
July 2025
29 Commits • 8 Features
Jul 1, 2025Month: 2025-07 — concise monthly summary for govuk-one-login/mobile-android-one-login-app highlighting key features, major fixes, impact, and technologies demonstrated. Key features delivered: - Implemented UI accessibility enhancements with focus colors across all buttons; focus color fix propagated to mobile UI. - Upgraded UI components: replaced all button components with v2. - CI/CD and release automation improvements: updated to enable tag pushes on push to main, added docs triggers, and workflow stabilization; updated CRI Orch to 0.57.4. Major bugs fixed: - Linting issue resolved to improve code quality and CI reliability. - Firebase AppCheck: catch generic errors and added error logging for FirebaseAppCheck. - Login flow: improved error handling to provide clearer failure modes. - Signin accessibility: fixes to ensure accessibility requirements are met. - Various dependency/build tweaks to prevent crashes (attestation checks, ID-Check crash fixes, and versioning publish fixes). Overall impact and accomplishments: - Improved accessibility and user experience, especially for assistive tech users. - Increased release velocity and reliability through CI/CD improvements and stable dependencies. - Reduced crash surface in critical auth flows through improved error handling and SDK compatibility. Technologies/skills demonstrated: - Android UI development (focus states, button components) - Accessibility best practices - Firebase AppCheck integration and logging - Dependency and SDK management (CRI Orch, attestation checks) - Build tooling and CI/CD (GitHub Actions, version publishing, tagging)
June 2025
32 Commits • 8 Features
Jun 1, 2025June 2025 monthly summary for govuk-one-login/mobile-android-one-login-app focused on stabilizing authentication flows, upgrading core SDKs, and strengthening release automation. Key features delivered include Local Authentication Updates (latest local auth with BioOptIn copy), Wallet SDK and CRI Orchestrator/SDK updates, SignOut screen with GA4 analytics and privacy link enhancement, plus CI/CD and testing improvements. Major bugs fixed encompassed Local Authentication stability fixes (loop, println removal, and view model tests), ID-Check prompt handling, launcher context maintenance, and dynamic deeplink variable handling. The month also delivered test improvements and various string refinements to improve reliability and user experience. Business value and impact: - Hardened authentication UX and reliability reduce user friction and security risks during sign-in/out. - Up-to-date SDKs and orchestrator components enable new features, better performance, and more stable deployments. - Improved analytics and privacy link integrity improve product analytics accuracy and compliance signals for decision-making. - CI/CD enhancements shorten release cycles, improve versioning discipline, and reduce build/test toil, accelerating time-to-market. - Robust launch and deep-link handling reduce crash-free user journeys and improve onboarding stability.
32 Commits • 8 Features
Jun 1, 2025June 2025 monthly summary for govuk-one-login/mobile-android-one-login-app focused on stabilizing authentication flows, upgrading core SDKs, and strengthening release automation. Key features delivered include Local Authentication Updates (latest local auth with BioOptIn copy), Wallet SDK and CRI Orchestrator/SDK updates, SignOut screen with GA4 analytics and privacy link enhancement, plus CI/CD and testing improvements. Major bugs fixed encompassed Local Authentication stability fixes (loop, println removal, and view model tests), ID-Check prompt handling, launcher context maintenance, and dynamic deeplink variable handling. The month also delivered test improvements and various string refinements to improve reliability and user experience. Business value and impact: - Hardened authentication UX and reliability reduce user friction and security risks during sign-in/out. - Up-to-date SDKs and orchestrator components enable new features, better performance, and more stable deployments. - Improved analytics and privacy link integrity improve product analytics accuracy and compliance signals for decision-making. - CI/CD enhancements shorten release cycles, improve versioning discipline, and reduce build/test toil, accelerating time-to-market. - Robust launch and deep-link handling reduce crash-free user journeys and improve onboarding stability.
June 2025
May 2025
54 Commits • 20 Features
May 1, 2025May 2025 Performance Summary – govuk-one-login/mobile-android-one-login-app Key features delivered: - Welcome Screen Branding and Accessibility Enhancements: Rebranding updates and accessibility improvements for the WelcomeScreen icon. Commits: cdcf3126..., a1716b55... - Cri Orchestrator Update: Upgraded Cri Orchestrator to version 0.42.0. Commit: d7872542... - Backend URLs Environment-Specific Configuration: Environment-specific backend URL configuration to reduce deploy-risk. Commit: d2b8190d... - Wallet/Auth Dependency Upgrade for CI: Updated wallet and auth dependencies to fix pipeline failures. Commit: dd5a2f1c... - UI/UX and Launcher Updates: SplashScreen behavior improvements and app icon assets updated for launcher and Play Store. Commits: 728bbc85..., 10306880..., 0124a9fd... - SignOutScreen Update: SignOutScreen migrated to v2 components/patterns. Commit: 3b344bfd... - Biometrics UI and Analytics: Added biometrics button, opt-in screen, and GA4 analytics for biometrics toggling. Commits: 0788b778..., dcf5eaaf..., aefa0032... - Local Authentication Upgrade: Updated local auth version and usage. Commit: f27ecdfe... - CI Workflow Stability and Deployments: CI workflow stability improvements including temporary bundle handling and environment-specific deployment steps. Commits include: 60a75f70..., 70d5c531..., 603f71ec..., 3cd17ef3..., 5f84b6d5..., dea6a9ac... Major bugs fixed: - UI Sizing and Horizontal Padding Fixes: Corrected sizing and added missing horizontal padding. Commits: bf2d6dd4..., 328b22ad... - UI Test Fix: Resolved flaky UI tests. Commit: 89e047be... - Integration Configuration and Test Fix: Added integration configuration and fixed tests. Commit: f65ffda1... - R8 Issue and Settings Image Fix: Resolved R8 issue and corrected settings tab image. Commit: fe9ae48f... - Memory/Build Configuration Fixes: Increased memory, added ProGuard rules, updated mobile-ui, and fixed linting issues. Commits: 7a8b976b..., 50f3fece..., 48da827b..., 0fe3a757... - Dependency Issues and Tests: Fixed dependency issues and test failures. Commit: b58362e6... - Accessibility Semantics and Focus Order: Fixed accessibility semantics and focus order across screens. Commits: 6a1c74d6..., 7e7476b6... - Icon Tests Removal: Removed icon tests temporarily. Commit: 13ae6d2f... Overall impact and accomplishments: - Higher release stability and faster cycle times due to CI and workflow improvements. - More robust, environment-aware configurations reducing deploy risk and misconfiguration. - Improved onboarding experience, accessibility, and biometric capabilities with analytics coverage for better product decisions. - Upgraded core platform integrations (Cri Orchestrator, Wallet SDK, CRI SDK) to enable new features and ensure compatibility. - Expanded test coverage (staging, navigation graph) and code-quality improvements across the codebase. Technologies/skills demonstrated: - Android app development (Kotlin), UI/UX, accessibility, and biometric flows. - Dependency management and SDK upgrades (Cri Orchestrator, Wallet, CRI). - CI/CD workflows, build optimizations, ProGuard and memory tuning. - Testing, QA automation, and GA4 integration for analytics.
May 2025
54 Commits • 20 Features
May 1, 2025May 2025 Performance Summary – govuk-one-login/mobile-android-one-login-app Key features delivered: - Welcome Screen Branding and Accessibility Enhancements: Rebranding updates and accessibility improvements for the WelcomeScreen icon. Commits: cdcf3126..., a1716b55... - Cri Orchestrator Update: Upgraded Cri Orchestrator to version 0.42.0. Commit: d7872542... - Backend URLs Environment-Specific Configuration: Environment-specific backend URL configuration to reduce deploy-risk. Commit: d2b8190d... - Wallet/Auth Dependency Upgrade for CI: Updated wallet and auth dependencies to fix pipeline failures. Commit: dd5a2f1c... - UI/UX and Launcher Updates: SplashScreen behavior improvements and app icon assets updated for launcher and Play Store. Commits: 728bbc85..., 10306880..., 0124a9fd... - SignOutScreen Update: SignOutScreen migrated to v2 components/patterns. Commit: 3b344bfd... - Biometrics UI and Analytics: Added biometrics button, opt-in screen, and GA4 analytics for biometrics toggling. Commits: 0788b778..., dcf5eaaf..., aefa0032... - Local Authentication Upgrade: Updated local auth version and usage. Commit: f27ecdfe... - CI Workflow Stability and Deployments: CI workflow stability improvements including temporary bundle handling and environment-specific deployment steps. Commits include: 60a75f70..., 70d5c531..., 603f71ec..., 3cd17ef3..., 5f84b6d5..., dea6a9ac... Major bugs fixed: - UI Sizing and Horizontal Padding Fixes: Corrected sizing and added missing horizontal padding. Commits: bf2d6dd4..., 328b22ad... - UI Test Fix: Resolved flaky UI tests. Commit: 89e047be... - Integration Configuration and Test Fix: Added integration configuration and fixed tests. Commit: f65ffda1... - R8 Issue and Settings Image Fix: Resolved R8 issue and corrected settings tab image. Commit: fe9ae48f... - Memory/Build Configuration Fixes: Increased memory, added ProGuard rules, updated mobile-ui, and fixed linting issues. Commits: 7a8b976b..., 50f3fece..., 48da827b..., 0fe3a757... - Dependency Issues and Tests: Fixed dependency issues and test failures. Commit: b58362e6... - Accessibility Semantics and Focus Order: Fixed accessibility semantics and focus order across screens. Commits: 6a1c74d6..., 7e7476b6... - Icon Tests Removal: Removed icon tests temporarily. Commit: 13ae6d2f... Overall impact and accomplishments: - Higher release stability and faster cycle times due to CI and workflow improvements. - More robust, environment-aware configurations reducing deploy risk and misconfiguration. - Improved onboarding experience, accessibility, and biometric capabilities with analytics coverage for better product decisions. - Upgraded core platform integrations (Cri Orchestrator, Wallet SDK, CRI SDK) to enable new features and ensure compatibility. - Expanded test coverage (staging, navigation graph) and code-quality improvements across the codebase. Technologies/skills demonstrated: - Android app development (Kotlin), UI/UX, accessibility, and biometric flows. - Dependency management and SDK upgrades (Cri Orchestrator, Wallet, CRI). - CI/CD workflows, build optimizations, ProGuard and memory tuning. - Testing, QA automation, and GA4 integration for analytics.
April 2025
17 Commits • 6 Features
Apr 1, 2025Concise monthly summary for 2025-04: Delivered critical updates across the Android login product, focusing on security, reliability, and maintainability. Implemented a new Local Authentication System with LocalAuthManager and the localauth library, modernized core login flows, and added a dev-menu test to exercise local auth error paths. Integrated CRI Orchestrator with DI/module updates and related UI/build changes. Updated Wallet SDK UI to the latest version with LocalContext -> LocalActivity migrations and associated UI tweaks. Refined End-to-End tests for login/local auth flows to improve reliability and accuracy. Strengthened CI and dependency management with grouped patch/minor updates and formatting fixes for Dependabot.
17 Commits • 6 Features
Apr 1, 2025Concise monthly summary for 2025-04: Delivered critical updates across the Android login product, focusing on security, reliability, and maintainability. Implemented a new Local Authentication System with LocalAuthManager and the localauth library, modernized core login flows, and added a dev-menu test to exercise local auth error paths. Integrated CRI Orchestrator with DI/module updates and related UI/build changes. Updated Wallet SDK UI to the latest version with LocalContext -> LocalActivity migrations and associated UI tweaks. Refined End-to-End tests for login/local auth flows to improve reliability and accuracy. Strengthened CI and dependency management with grouped patch/minor updates and formatting fixes for Dependabot.
April 2025
March 2025
41 Commits • 15 Features
Mar 1, 2025Monthly summary for 2025-03 focused on delivering business value through UX resilience, reliability, and maintainability in the govuk-one-login Android app. Highlights include resilient SplashScreen routing on SecureStoreError, sign-out UX updates, and build/infrastructure improvements that reduce friction and unlock faster release cycles. The month also delivered a strengthened test strategy via Robolectric adoption, platform upgrades (Java 21), enhanced authentication error handling, accessibility enhancements, and targeted bug fixes that improve stability and security.
March 2025
41 Commits • 15 Features
Mar 1, 2025Monthly summary for 2025-03 focused on delivering business value through UX resilience, reliability, and maintainability in the govuk-one-login Android app. Highlights include resilient SplashScreen routing on SecureStoreError, sign-out UX updates, and build/infrastructure improvements that reduce friction and unlock faster release cycles. The month also delivered a strengthened test strategy via Robolectric adoption, platform upgrades (Java 21), enhanced authentication error handling, accessibility enhancements, and targeted bug fixes that improve stability and security.
February 2025
69 Commits • 19 Features
Feb 1, 2025February 2025 monthly summary for govuk-one-login/mobile-android-one-login-app: delivered substantial feature work and architecture improvements, with a focus on user experience, telemetry, and release readiness. The cycle emphasized UI consistency, robust analytics, modularization, and stabilization of the build/release process to support safer, data-driven decisions and faster delivery.
69 Commits • 19 Features
Feb 1, 2025February 2025 monthly summary for govuk-one-login/mobile-android-one-login-app: delivered substantial feature work and architecture improvements, with a focus on user experience, telemetry, and release readiness. The cycle emphasized UI consistency, robust analytics, modularization, and stabilization of the build/release process to support safer, data-driven decisions and faster delivery.
February 2025
January 2025
15 Commits • 5 Features
Jan 1, 2025January 2025 focused on delivering robust user experience, enabling modern identity verification flows, and stabilizing the mobile one-login app through targeted refactors and dependency updates. Key work spanned feature delivery, strategic bug fixes, and foundational analytics for business insight, while removing legacy configurations to simplify maintenance.
January 2025
15 Commits • 5 Features
Jan 1, 2025January 2025 focused on delivering robust user experience, enabling modern identity verification flows, and stabilizing the mobile one-login app through targeted refactors and dependency updates. Key work spanned feature delivery, strategic bug fixes, and foundational analytics for business insight, while removing legacy configurations to simplify maintenance.
December 2024
3 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for govuk-one-login/mobile-android-one-login-app: Delivered security-focused authentication enhancements and resolved a token parsing issue, strengthening login integrity and reducing production parsing errors.
3 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for govuk-one-login/mobile-android-one-login-app: Delivered security-focused authentication enhancements and resolved a token parsing issue, strengthening login integrity and reducing production parsing errors.
December 2024
November 2024
31 Commits • 9 Features
Nov 1, 2024November 2024 monthly wrap-up for govuk-one-login/mobile-android-one-login-app. Delivered core security/auth enhancements, improved test quality, and stabilized the build & networking surface, driving reliability and business value for the Android login experience.
November 2024
31 Commits • 9 Features
Nov 1, 2024November 2024 monthly wrap-up for govuk-one-login/mobile-android-one-login-app. Delivered core security/auth enhancements, improved test quality, and stabilized the build & networking surface, driving reliability and business value for the Android login experience.
October 2024
4 Commits • 2 Features
Oct 1, 2024October 2024 monthly summary: Delivered foundational security enhancements for the Android one-login app by integrating App Check and app integrity checks, and hardening token handling and release-time configuration. Implementations lay groundwork for verifying legitimate app instances and securing backend access, with secure key storage in the Android Keystore. These changes improve security, reliability, and developer efficiency for backend access control.
4 Commits • 2 Features
Oct 1, 2024October 2024 monthly summary: Delivered foundational security enhancements for the Android one-login app by integrating App Check and app integrity checks, and hardening token handling and release-time configuration. Implementations lay groundwork for verifying legitimate app instances and securing backend access, with secure key storage in the Android Keystore. These changes improve security, reliability, and developer efficiency for backend access control.
October 2024
Activity
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Quality Metrics
Correctness87.6%
Maintainability88.8%
Architecture84.4%
Performance80.4%
AI Usage20.6%
Skills & Technologies
Programming Languages
BashBinaryGPGGradleJavaKotlinMarkdownPNGProGuardProguard
Technical Skills
API HandlingAPI IntegrationAPI Response HandlingAccessibilityAnalyticsAnalytics IntegrationAndroid DevelopmentAndroid TestingApp CheckApp IntegrityAsset ManagementAuthenticationBackend IntegrationBase64 DecodingBuild Automation
Repositories Contributed To
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