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Karel Smutný

PROFILE

Karel Smutný

Karel Smutný led the engineering and evolution of the scrumdojo/quizmaster repository, delivering a robust quiz management platform with a focus on maintainability, testability, and developer experience. He architected modular React and Java Spring components, modernized API contracts, and introduced workspace-scoped analytics and AI-assisted content generation. Karel implemented automated test suites using Playwright and Cucumber, streamlined CI/CD pipelines, and refactored both frontend and backend for clarity and scalability. His work included deep refactors of state management, validation, and UI flows, resulting in a reliable, extensible system. Throughout, he applied TypeScript, Java, and containerization to accelerate delivery and reduce defects.

Overall Statistics

Feature vs Bugs

79%Features

Repository Contributions

773Total
Bugs
67
Commits
773
Features
256
Lines of code
94,745
Activity Months16

Your Network

154 people

Shared Repositories

154

Work History

April 2026

92 Commits • 39 Features

Apr 1, 2026

April 2026 across scrumdojo/quizmaster focused on reliability, scalability, and analytics. Achievements include a test-structure refactor with scenario consolidation, API readiness for OpenRouter, major tooling upgrades, timing/flow reliability improvements, and state/UI refactors that improve maintainability and per-workspace analytics. These changes reduce maintenance overhead, speed up CI, and enable safer, data-driven decisions.

March 2026

195 Commits • 91 Features

Mar 1, 2026

March 2026 (2026-03) was focused on stabilizing the QuizMaster product, modernizing the codebase, and improving test reliability. Delivered core feature refinements, architectural refactors, and API/DTO standardization that reduce maintenance cost and accelerate delivery of future quizzes. Key business outcomes include more reliable quiz creation and taking flows, fewer flaky tests, and stronger CI/CD integration. Highlights span backend refactors (centralizing quiz workflows into quiz/ops.ts and extracting score/page assertions to quiz/expects.ts), API contract modernization, frontend enhancements (image URLs and SCSS styling), and AI-assisted content improvements with validation and safer prompts.

January 2026

21 Commits • 6 Features

Jan 1, 2026

January 2026 monthly summary for nerds-odd-e/doughnut, focusing on delivering data cleansing, automation, and reliability improvements that drive business value and accelerate iteration: Key features delivered: - Point removal workflow in the assimilation page: added a checkbox-based point selection UX and integrated with the removal API (removePointFromNote) to support targeted cleansing of notes. - Note rephrase automation: introduced a UI button and automation flow with mocked responses; refactored ChatCompletionNoteAutomationService to improve reliability and testability, enabling rephrasing of notes (e.g., removing a point). - Test environment improvements: enhanced E2E testing workflow with cy:focus to run local tests against Vite, speeding feedback during local development. - Feature toggles using useFeatureToggle(): added a reusable composable to manage feature flags across the codebase, enabling safer, incremental rollouts. - Note understanding points refresh: added a refresh mechanism for rephrased note understanding points and corresponding test coverage. Major bugs fixed: - Formatting and local typing fixes across the codebase to improve consistency and reduce type-related issues. - Merge conflict resolution during integration to ensure clean builds. - AiControllerTest fix to restore test passing status. - Additional format handling bug fixes to address edge cases in notes/points formatting. Overall impact and accomplishments: - Improved data quality and note management through a concrete point-removal workflow and automated note rephrasing, reducing manual cleansing and editing time. - Increased development velocity and release safety via feature flags and better test scaffolding, along with faster local feedback loops from enhanced E2E testing. - Higher stability and code quality through proactive formatting, typing fixes, and targeted test coverage. Technologies/skills demonstrated: - TypeScript, React-based UI and API integration patterns (removePointFromNote) and composables (useFeatureToggle) - Service refactoring (ChatCompletionNoteAutomationService) for maintainability and testability - Cypress-based end-to-end testing and local test optimization (cy:focus) - Test automation, mocking strategies, and test coverage improvements

December 2025

18 Commits • 3 Features

Dec 1, 2025

December 2025 monthly summary for scrumdojo/quizmaster: Delivered major improvements to Quiz Creation and Management, removed Quiz Statistics Tracking to simplify the system, and completed Test Infrastructure, CI, and Build Cleanup to enhance reliability and developer productivity. The initiatives streamlined authoring workflows, strengthened validation, and reduced system complexity, delivering tangible business value: faster feature delivery, fewer defects in the quiz feature, and more predictable releases. Notable architectural changes include API simplifications, refactors introducing a new RadioSet UI component, substitution of EasyMode with a unified Difficulty enum, and comprehensive test/CI reorganization. Infrastructure work included dependency cleanup and CI stability fixes that reduced build noise and improved feedback loops.

November 2025

57 Commits • 17 Features

Nov 1, 2025

Monthly work summary for 2025-11 (scrumdojo/quizmaster): Focused on stabilizing architecture, improving maintainability, and delivering features that enable faster development and better analytics. Highlights include backend cleanup and API refactors, workspace-centric naming and routing refinements, Quiz integration with the Question List workflow, and Quiz Stats API/UI improvements. Also implemented foundational UI/form architecture upgrades and quality improvements to ensure reliability across the codebase.

October 2025

79 Commits • 18 Features

Oct 1, 2025

Month 2025-10 — Delivered significant platform refinements and a broad frontend/backend cleanup pass for scrumdojo/quizmaster, strengthening maintainability, reliability, and velocity for feature delivery.

September 2025

8 Commits • 2 Features

Sep 1, 2025

Concise monthly summary for 2025-09 (scrumdojo/quizmaster):

August 2025

64 Commits • 17 Features

Aug 1, 2025

August 2025 highlights for scrumdojo/quizmaster: Delivered a major Quiz core refactor and test-flow improvements that modularized quiz domain components, relocated the WIP interface to its own module, renamed World.bookmarks to questionBookmarks, and generalized quiz creation in tests, while cleaning test lifecycle by removing post-test quiz deletions and unused WIP. This reduces maintenance and improves reliability of the test suite across take/Quiz creation flows. Enhanced test suite organization and helper utilities (emptyQuestion helper; folder-based organization; streamlined steps) enabling faster contributor onboarding and more maintainable specs. Refactored the World module and API helper usage, including introducing useApi hook and consolidating the world module for specs, improving test consistency and enabling smoother quiz take flow. Frontend/UI cleanup and docs: removed deprecated Lighten SCSS function and stray console.log; updated docs with create quiz API sample; improved welcome page wording and presentation. Quality improvements across specs including standardized wording, removal of redundant steps, and question form refactors; plus a bug fix addressing batch formatting.

June 2025

13 Commits • 3 Features

Jun 1, 2025

June 2025 monthly summary for scrumdojo/quizmaster, focusing on feature delivery, bug fixes, and overall impact. Highlights include UI/UX refactors, test infrastructure enhancements, and living docs generation to improve maintainability, onboarding, and product reliability.

May 2025

35 Commits • 10 Features

May 1, 2025

In May 2025, the quizmaster project advanced in quality, maintainability, and automation, delivering clear documentation improvements, faster and more reliable test execution, and tooling modernization that supports scalable development and faster feedback loops. The work emphasizes business value through clearer onboarding, reduced support needs, and smoother release cycles, while strengthening code quality and test reliability.

April 2025

11 Commits • 2 Features

Apr 1, 2025

April 2025 — scrumdojo/quizmaster: Delivered two core initiatives—UI/navigation standardization and DevOps/dev-environment improvements—leading to a more consistent user experience, faster development cycles, and more reliable releases. Key outcomes include unifying the quiz navigation UI (refactor: Unified quiz navigation buttons) and consolidating development containers, CI/CD workflows, and tooling upgrades. These changes reduce onboarding time, stabilize local and CI environments, and provide better test visibility. Business value: improved UX consistency, reduced environment-related downtime, and accelerated time-to-market for feature work.

March 2025

17 Commits • 2 Features

Mar 1, 2025

Overview for 2025-03 focusing on the scrumdojo/quizmaster repo. Key features delivered include a comprehensive Quiz UI and State Refactor and a separate- flow for Quiz Scoring/Navigation. These initiatives improve maintainability, reliability, and speed of iteration by modularizing UI, centralizing evaluation logic, and removing legacy persistence. Representative commits underpinning this work include componentization (ProgressBar, Button), navigation module separation, unified answer evaluation, and simplification/removal of client-side routes for scoring. Tests were refreshed to align with the new scoring flow, and code cleanup reduced noise (unnecessary attributes, console logs, and sessionStorage usage). The combined effect is a cleaner, more scalable quiz experience with a solid foundation for future features. Key business value: faster feature delivery, easier onboarding and maintenance, and a more predictable user experience through standardized scoring and UI components.

February 2025

76 Commits • 18 Features

Feb 1, 2025

February 2025 — ScrumDojo Quizmaster: Frontend migration to React, modularization of the question-creation workflow, API data-model cleanup, and tooling upgrades that collectively improved developer velocity, UI maintainability, and release quality. Key accomplishments in this month include delivering core frontend features and refactors that accelerate future work, stabilizing the UI and tests, and laying groundwork for a scalable quiz experience across teams.

January 2025

65 Commits • 23 Features

Jan 1, 2025

January 2025 monthly summary for scrumdojo/quizmaster. Focused on improving developer onboarding, stabilizing the frontend, and elevating QuizQuestion capabilities. Delivered environment automation, frontend/backend refactors, and targeted bug fixes to accelerate delivery and reduce ongoing maintenance.

December 2024

20 Commits • 4 Features

Dec 1, 2024

December 2024 — scrumdojo/quizmaster: Delivered governance and quality standards to standardize collaboration and code quality; modernized the tech stack; enhanced quiz functionality; and tightened the test suite for reliability. These efforts reduced onboarding friction, improved release confidence, and positioned the project for scalable growth.

November 2024

2 Commits • 1 Features

Nov 1, 2024

November 2024: Focused on developer experience and documentation for scrumdojo/quizmaster. Key accomplishments include fixing a broken APS-SD README link and introducing a containerized development workflow (Docker/Podman) with accompanying docs.

Activity

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Quality Metrics

Correctness95.0%
Maintainability94.4%
Architecture92.0%
Performance92.0%
AI Usage30.0%

Skills & Technologies

Programming Languages

BashBatchfileCSSDockerfileGherkinGitGradleHTMLHTTPJSON

Technical Skills

AI DevelopmentAI IntegrationAI integrationAPI DesignAPI DevelopmentAPI IntegrationAPI TestingAPI designAPI developmentAPI integrationAccessibilityAutomationBDDBackend DevelopmentBehavior Driven Development

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

scrumdojo/quizmaster

Nov 2024 Apr 2026
15 Months active

Languages Used

MarkdownGherkinGradleHTMLJSONJavaScriptKotlinTypeScript

Technical Skills

Developer ExperienceDocumentationAccessibilityBackend DevelopmentBehavior Driven DevelopmentBehavior-Driven Development

nerds-odd-e/doughnut

Jan 2026 Jan 2026
1 Month active

Languages Used

GherkinJavaJavaScriptTypeScriptVueYAML

Technical Skills

AI integrationAPI developmentAPI integrationCypressJavaMockito