mullvad/mullvadvpn-app
Jan 2025 – Dec 2025
11 Months active
Languages Used
MarkdownObjective-CSwiftRustSVGBashYAMLShell
Technical Skills
Code OrganizationCoordinatorsDocumentationIn-App PurchasesLocalizationMobile Development
Steffen
PROFILE
Steffen
Over the past eleven months, contributed to the mullvad/mullvadvpn-app repository by delivering 26 features and resolving 11 bugs, focusing on user experience, reliability, and maintainability. Developed and refined core VPN features such as multihop routing, device management, and location selection, using Swift, SwiftUI, and Rust for robust mobile development. Enhanced accessibility, automated testing, and CI/CD pipelines, while modernizing UI components and ensuring license compliance. Addressed memory management and stability issues, improved test infrastructure, and standardized code formatting. The work emphasized scalable architecture, clear documentation, and seamless integration of new features, resulting in a more secure and user-friendly iOS application.
Overall Statistics
Feature vs Bugs
70%Features
Repository Contributions
89Total
Bugs
11
Commits
89
Features
26
Lines of code
25,720
Activity Months11
Your Network
62 peopleSame Organization
@mullvad.net20
Shared Repositories
42
Work History
December 2025
11 Commits • 2 Features
Dec 1, 2025December 2025 was a focused sprint on delivering a smoother location-based routing experience in the Mullvad VPN App while stabilizing the test and runtime environment. Key features delivered include the Mullvad VPN App: Enhanced Location Selection UX (Multihop, Scrolling, and Smart Routing), consolidating UI/UX improvements across multihop and smart routing in the location flow, adding a multihop toggle, automatic entry option, improved scrolling behavior, and accessibility/rendering fixes, plus accompanying E2E tests. Major bugs fixed include a TunnelManager memory leak by changing the lastMapConnectionStatusOperation reference from strong to weak, reducing retain cycles and improving stability in test runs. The test infrastructure was enhanced to improve reliability by adjusting UI test timeouts, skipping nondeterministic tests, and refining screenshot test naming. The overall impact: improved user experience with a more reliable routing workflow, fewer flaky tests, and stronger code quality enabling safer feature rollout. Technologies/skills demonstrated include iOS UI/UX design, memory management with weak references, UI and E2E test automation, test infrastructure improvements, and accessibility/rendering optimization.
11 Commits • 2 Features
Dec 1, 2025December 2025 was a focused sprint on delivering a smoother location-based routing experience in the Mullvad VPN App while stabilizing the test and runtime environment. Key features delivered include the Mullvad VPN App: Enhanced Location Selection UX (Multihop, Scrolling, and Smart Routing), consolidating UI/UX improvements across multihop and smart routing in the location flow, adding a multihop toggle, automatic entry option, improved scrolling behavior, and accessibility/rendering fixes, plus accompanying E2E tests. Major bugs fixed include a TunnelManager memory leak by changing the lastMapConnectionStatusOperation reference from strong to weak, reducing retain cycles and improving stability in test runs. The test infrastructure was enhanced to improve reliability by adjusting UI test timeouts, skipping nondeterministic tests, and refining screenshot test naming. The overall impact: improved user experience with a more reliable routing workflow, fewer flaky tests, and stronger code quality enabling safer feature rollout. Technologies/skills demonstrated include iOS UI/UX design, memory management with weak references, UI and E2E test automation, test infrastructure improvements, and accessibility/rendering optimization.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 — Mullvad Mullvadvpn-app: Key deliveries, impact, and skills demonstrated. Focused on delivering a privacy-centric feature with measurable user value while maintaining code quality and release discipline. Key features delivered: - Multihop VPN Selection View (iOS): Introduced a new multihop selection view enabling users to choose multiple hops for their VPN connection, providing flexible, customizable routing and enhanced privacy controls. Major bugs fixed: - No major bugs reported or released as fixed this month for mullvadvpn-app. Overall impact and accomplishments: - Expanded feature set to support advanced routing scenarios, positioning the product for users seeking greater privacy and configurability. - Strengthened user trust through transparent UI for multi-hop routing and a cleaner integration with the existing VPN flow. - Maintained strong release discipline with a single, well-scoped feature branch and corresponding documentation. Technologies/skills demonstrated: - iOS app development (Swift/SwiftUI), UI/UX alignment, and state management for a configurable VPN routing experience. - Code quality, commit hygiene, and traceability with a focused changelist (commit: b87c35f12f839a9f48270ed87f1f5eb451d1acbb). - Collaboration with QA and product to validate usability and performance implications of the multi-hop feature.
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 — Mullvad Mullvadvpn-app: Key deliveries, impact, and skills demonstrated. Focused on delivering a privacy-centric feature with measurable user value while maintaining code quality and release discipline. Key features delivered: - Multihop VPN Selection View (iOS): Introduced a new multihop selection view enabling users to choose multiple hops for their VPN connection, providing flexible, customizable routing and enhanced privacy controls. Major bugs fixed: - No major bugs reported or released as fixed this month for mullvadvpn-app. Overall impact and accomplishments: - Expanded feature set to support advanced routing scenarios, positioning the product for users seeking greater privacy and configurability. - Strengthened user trust through transparent UI for multi-hop routing and a cleaner integration with the existing VPN flow. - Maintained strong release discipline with a single, well-scoped feature branch and corresponding documentation. Technologies/skills demonstrated: - iOS app development (Swift/SwiftUI), UI/UX alignment, and state management for a configurable VPN routing experience. - Code quality, commit hygiene, and traceability with a focused changelist (commit: b87c35f12f839a9f48270ed87f1f5eb451d1acbb). - Collaboration with QA and product to validate usability and performance implications of the multi-hop feature.
October 2025
6 Commits • 2 Features
Oct 1, 2025October 2025: Delivered key enhancements in Mullvad VPN app focusing on user experience and testing reliability. Location Selection UI provides a SwiftUI-based view with custom location lists, location filters, and localization/accessibility improvements, enabling faster and more accessible server choices. End-to-End testing improvements for iOS VPN App increased reliability and CI efficiency through a connection verification wait, quantum resistance checks, and removal of duplicate E2E runs in PR workflows. Together, these changes enhance user experience, product quality, and release velocity.
6 Commits • 2 Features
Oct 1, 2025October 2025: Delivered key enhancements in Mullvad VPN app focusing on user experience and testing reliability. Location Selection UI provides a SwiftUI-based view with custom location lists, location filters, and localization/accessibility improvements, enabling faster and more accessible server choices. End-to-End testing improvements for iOS VPN App increased reliability and CI efficiency through a connection verification wait, quantum resistance checks, and removal of duplicate E2E runs in PR workflows. Together, these changes enhance user experience, product quality, and release velocity.
October 2025
September 2025
3 Commits • 1 Features
Sep 1, 2025In September 2025, delivered unified Swift code formatting standards and tooling for mullvad/mullvadvpn-app, consolidating lint/format tooling, standardizing formatting rules, and refactoring formatting for readability. This work improves maintainability, reduces PR churn due to formatting, and accelerates onboarding for iOS/Swift contributors.
September 2025
3 Commits • 1 Features
Sep 1, 2025In September 2025, delivered unified Swift code formatting standards and tooling for mullvad/mullvadvpn-app, consolidating lint/format tooling, standardizing formatting rules, and refactoring formatting for readability. This work improves maintainability, reduces PR churn due to formatting, and accelerates onboarding for iOS/Swift contributors.
August 2025
5 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary for Mullvad Mullvadvpn-app. Key features delivered include user-safety enhancements, CI/CD governance, and maintainability improvements. No major bugs reported this month. Impact: safer account management, stronger license compliance, standardized build pipelines, and clearer architecture for rotation logic. Technologies demonstrated include Swift (with SwiftFormat), Rust API client integration, and CI/CD tooling.
5 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary for Mullvad Mullvadvpn-app. Key features delivered include user-safety enhancements, CI/CD governance, and maintainability improvements. No major bugs reported this month. Impact: safer account management, stronger license compliance, standardized build pipelines, and clearer architecture for rotation logic. Technologies demonstrated include Swift (with SwiftFormat), Rust API client integration, and CI/CD tooling.
August 2025
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 Monthly Performance Summary for mullvad/mullvadvpn-app. The month focused on delivering UI consistency and reliability improvements through reusable input components and robust device management workflows. Key features were delivered by introducing reusable text field components (MullvadPrimaryTextField, MullvadSecondaryTextField) with integrated validation, placeholder text, clear actions, and focus states, alongside updates to asset catalogs and color definitions to support the new design system. Major bugs fixed include correcting the device list loading state by making the devices array optional and adding a safe maximum devices check to ensure the UI reflects loading state before presenting the list. This work reduces confusion for users and strengthens data handling during device management. Overall impact: the team achieved a more consistent, scalable UI, improved reliability in device management flows, and faster future development through component reuse and design-system alignment. Technologies/skills demonstrated: SwiftUI componentization, defensive programming with optionals, UI/UX standardization, asset catalog and design token updates, and targeted bug-fix workflows.
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025 Monthly Performance Summary for mullvad/mullvadvpn-app. The month focused on delivering UI consistency and reliability improvements through reusable input components and robust device management workflows. Key features were delivered by introducing reusable text field components (MullvadPrimaryTextField, MullvadSecondaryTextField) with integrated validation, placeholder text, clear actions, and focus states, alongside updates to asset catalogs and color definitions to support the new design system. Major bugs fixed include correcting the device list loading state by making the devices array optional and adding a safe maximum devices check to ensure the UI reflects loading state before presenting the list. This work reduces confusion for users and strengthens data handling during device management. Overall impact: the team achieved a more consistent, scalable UI, improved reliability in device management flows, and faster future development through component reuse and design-system alignment. Technologies/skills demonstrated: SwiftUI componentization, defensive programming with optionals, UI/UX standardization, asset catalog and design token updates, and targeted bug-fix workflows.
June 2025
6 Commits • 2 Features
Jun 1, 2025June 2025 – Mullvad VPN App: Delivered two major capabilities that improve user navigation, DNS/configuration workflows, and device governance, while strengthening test reliability and UI polish. Key features delivered: Feature Indicators Navigation and DNS Quick Access UI, plus Device Management under Account. The Feature Indicators work introduces tappable indicators that navigate to VPN, Multihop, DNS, and IP override settings, wires in routes, updates to changelog navigation to reflect clickable indicators, and UI polish for disabled text colors. DNS view enhancements include a Done button when coming from a feature indicator and alignment improvements for DNS management actions. Quick access button tests were updated to ensure reliable behavior across flows. The Device Management feature adds a new view to list logged-in devices, marks the current device, supports removal of other devices, and provides guidance when device counts are high. Major bugs fixed and quality improvements: UI test stabilization for quick access buttons; resolved UI inconsistencies in disabled text rendering; ensured changelog indicators correctly drive navigation. Overall impact and business value: Streamlined first-launch and day-to-day navigation for critical settings, reducing user friction and support load. Strengthened device governance with a clear view of connected devices and straightforward removal workflows, improving security posture and user control. The work also lays groundwork for scalable settings navigation and future feature indicator expansions. Technologies/skills demonstrated: iOS UI/UX polish, navigation and routing, feature flag-free UI wiring, test automation and maintenance, changelog integration, and device lifecycle management.
6 Commits • 2 Features
Jun 1, 2025June 2025 – Mullvad VPN App: Delivered two major capabilities that improve user navigation, DNS/configuration workflows, and device governance, while strengthening test reliability and UI polish. Key features delivered: Feature Indicators Navigation and DNS Quick Access UI, plus Device Management under Account. The Feature Indicators work introduces tappable indicators that navigate to VPN, Multihop, DNS, and IP override settings, wires in routes, updates to changelog navigation to reflect clickable indicators, and UI polish for disabled text colors. DNS view enhancements include a Done button when coming from a feature indicator and alignment improvements for DNS management actions. Quick access button tests were updated to ensure reliable behavior across flows. The Device Management feature adds a new view to list logged-in devices, marks the current device, supports removal of other devices, and provides guidance when device counts are high. Major bugs fixed and quality improvements: UI test stabilization for quick access buttons; resolved UI inconsistencies in disabled text rendering; ensured changelog indicators correctly drive navigation. Overall impact and business value: Streamlined first-launch and day-to-day navigation for critical settings, reducing user friction and support load. Strengthened device governance with a clear view of connected devices and straightforward removal workflows, improving security posture and user control. The work also lays groundwork for scalable settings navigation and future feature indicator expansions. Technologies/skills demonstrated: iOS UI/UX polish, navigation and routing, feature flag-free UI wiring, test automation and maintenance, changelog integration, and device lifecycle management.
June 2025
May 2025
22 Commits • 3 Features
May 1, 2025May 2025 performance review: Stabilized core port handling, delivered UI alignment with design, and reinforced iOS CI/CD and release reliability. Key user-impact features include a blocked-state banner for port handling with a new settings button, and UI typography/color improvements aligned to the design system. The month also advanced end-to-end testing for iOS and solidified release artifacts, reducing risk for users and accelerating delivery.
May 2025
22 Commits • 3 Features
May 1, 2025May 2025 performance review: Stabilized core port handling, delivered UI alignment with design, and reinforced iOS CI/CD and release reliability. Key user-impact features include a blocked-state banner for port handling with a new settings button, and UI typography/color improvements aligned to the design system. The month also advanced end-to-end testing for iOS and solidified release artifacts, reducing risk for users and accelerating delivery.
April 2025
4 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for mullvad/mullvadvpn-app focusing on delivering business value through feature delivery, bug fixes, and UI/UX modernization. Key impact: expanded monetization capabilities, improved reliability of IP override logic, and maintainable UI through SwiftUI migration.
4 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for mullvad/mullvadvpn-app focusing on delivering business value through feature delivery, bug fixes, and UI/UX modernization. Key impact: expanded monetization capabilities, improved reliability of IP override logic, and maintainable UI through SwiftUI migration.
April 2025
February 2025
19 Commits • 4 Features
Feb 1, 2025February 2025 monthly summary for Mullvad Mullvadvpn-app focuses on delivering a major Local Network Sharing (LNS) feature, stabilizing core flows, and strengthening onboarding with comprehensive tests. Key features include LNS with a new tunnel settings version (v7), UI integration in VPN settings, reconnection behavior adjustments, gating and warnings, and broad test/documentation coverage. In-app Purchases flow was reorganized to provide clearer event feedback, ensure smooth navigation after successful payments, and streamline purchase/restoration UX. Stability work shipped across the UI and network stack, including improved alert dismissal ordering,Spinner timing after tunnel connect, prevention of multiple taps, and enhanced resilience after EncryptedDnsProxy failures. Voucher flow was removed from onboarding to simplify the purchase path. Mullvad API client gained comprehensive unit tests, improving reliability and diagnosing backend issues.
February 2025
19 Commits • 4 Features
Feb 1, 2025February 2025 monthly summary for Mullvad Mullvadvpn-app focuses on delivering a major Local Network Sharing (LNS) feature, stabilizing core flows, and strengthening onboarding with comprehensive tests. Key features include LNS with a new tunnel settings version (v7), UI integration in VPN settings, reconnection behavior adjustments, gating and warnings, and broad test/documentation coverage. In-app Purchases flow was reorganized to provide clearer event feedback, ensure smooth navigation after successful payments, and streamline purchase/restoration UX. Stability work shipped across the UI and network stack, including improved alert dismissal ordering,Spinner timing after tunnel connect, prevention of multiple taps, and enhanced resilience after EncryptedDnsProxy failures. Voucher flow was removed from onboarding to simplify the purchase path. Mullvad API client gained comprehensive unit tests, improving reliability and diagnosing backend issues.
January 2025
10 Commits • 4 Features
Jan 1, 2025Concise monthly summary for mullvad/mullvadvpn-app focusing on key features delivered, major bug fixes, overall impact, and technologies demonstrated for 2025-01. Highlights include UI/UX refinements for Daita and Multihop Settings, Connection View animations and reusable modifiers, a centralized In-App Purchase UX overhaul with a spinner overlay, a bug fix for UI indicator chips, and Swift 6 readiness plus localization/build cleanups enabling smoother future releases. The work improves user experience on small devices, reduces maintenance risk, and supports faster, more reliable releases.
10 Commits • 4 Features
Jan 1, 2025Concise monthly summary for mullvad/mullvadvpn-app focusing on key features delivered, major bug fixes, overall impact, and technologies demonstrated for 2025-01. Highlights include UI/UX refinements for Daita and Multihop Settings, Connection View animations and reusable modifiers, a centralized In-App Purchase UX overhaul with a spinner overlay, a bug fix for UI indicator chips, and Swift 6 readiness plus localization/build cleanups enabling smoother future releases. The work improves user experience on small devices, reduces maintenance risk, and supports faster, more reliable releases.
January 2025
Activity
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Quality Metrics
Correctness89.8%
Maintainability88.4%
Architecture86.2%
Performance84.0%
AI Usage21.6%
Skills & Technologies
Programming Languages
BashMarkdownObjective-CRustSVGShellSwiftTOMLYAML
Technical Skills
API IntegrationAccessibilityAccessibility ComplianceAsset ManagementAutomated TestingBuild AutomationBuild ConfigurationBuild EngineeringCI/CDCode FormattingCode LintingCode OrganizationCombineConcurrencyCoordinator Pattern
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline