City-of-Helsinki/linked-volunteering-ui
Sep 2025 – Nov 2025
3 Months active
Languages Used
JavaScriptTypeScriptSCSS
Technical Skills
Reactfront end developmenttesting
joonasmykkanen
PROFILE
Joonasmykkanen
Joonas Mykkanen contributed to the City-of-Helsinki/linked-volunteering-ui repository by delivering targeted frontend enhancements over a three-month period. He implemented event visibility controls and robust date range constraints, improving event planning reliability and reducing scheduling errors for organizers and volunteers. Joonas refactored the codebase by removing unused components and cleaning up imports, which enhanced maintainability and readability. He also stabilized event rendering by guarding against null or undefined data, addressing a critical crash. Throughout, he applied React, TypeScript, and SCSS, emphasizing code quality through linting and automated checks, resulting in a more reliable and maintainable volunteer event management UI.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
7Total
Bugs
1
Commits
7
Features
4
Lines of code
341
Activity Months3
Your Network
10 people
Work History
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025 — City-of-Helsinki/linked-volunteering-ui: Stabilized event rendering and elevated code quality. Major outcomes include a fixed rendering crash in EventMarkers and wide-ranging lint/formatting improvements across components, enhancing maintainability. Impact: more reliable volunteer event UI and reduced technical debt, enabling faster future iterations. Technologies/skills demonstrated: TypeScript, React, ESLint/Prettier, emphasis on automated checks and code quality discipline.
2 Commits • 1 Features
Nov 1, 2025November 2025 — City-of-Helsinki/linked-volunteering-ui: Stabilized event rendering and elevated code quality. Major outcomes include a fixed rendering crash in EventMarkers and wide-ranging lint/formatting improvements across components, enhancing maintainability. Impact: more reliable volunteer event UI and reduced technical debt, enabling faster future iterations. Technologies/skills demonstrated: TypeScript, React, ESLint/Prettier, emphasis on automated checks and code quality discipline.
November 2025
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025 — City-of-Helsinki/linked-volunteering-ui: Codebase Refactor and Cleanup. Removed the unused ResetButton component and cleaned up imports to improve code cleanliness, maintainability, and readability. This work includes linting-focused cleanup and aligns with quality goals for the UI module (commit 38d08fc9675a1d3c594c6329c306f07c57bd615c).
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025 — City-of-Helsinki/linked-volunteering-ui: Codebase Refactor and Cleanup. Removed the unused ResetButton component and cleaned up imports to improve code cleanliness, maintainability, and readability. This work includes linting-focused cleanup and aligns with quality goals for the UI module (commit 38d08fc9675a1d3c594c6329c306f07c57bd615c).
September 2025
4 Commits • 2 Features
Sep 1, 2025In September 2025, delivered key frontend enhancements for the City of Helsinki’s linked-volunteering UI, focusing on event visibility controls and robust date range constraints. These changes improve planning reliability, reduce scheduling errors, and enhance the user experience for organizers and volunteers.
4 Commits • 2 Features
Sep 1, 2025In September 2025, delivered key frontend enhancements for the City of Helsinki’s linked-volunteering UI, focusing on event visibility controls and robust date range constraints. These changes improve planning reliability, reduce scheduling errors, and enhance the user experience for organizers and volunteers.
September 2025
Activity
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Quality Metrics
Correctness100.0%
Maintainability94.2%
Architecture94.2%
Performance94.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaScriptSCSSTypeScript
Technical Skills
Reactfront end developmenttesting
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