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Jonatan Witoszek

PROFILE

Jonatan Witoszek

Over an 18-month period, contributed to the Saleor ecosystem by building and refining features across saleor-dashboard, saleor-docs, and saleor/apps. Focused on improving developer experience, security, and business workflows, this work included implementing advanced product filtering, metadata-driven UI enhancements, and robust integration documentation. Leveraged TypeScript, React, and GraphQL to deliver maintainable front-end solutions, while strengthening backend reliability with Node.js and AWS services. Enhanced CI/CD pipelines, automated testing with Playwright, and introduced security best practices such as secret key rotation and dependency auditing. These efforts resulted in more reliable releases, improved onboarding, and greater observability for both users and developers.

Overall Statistics

Feature vs Bugs

74%Features

Repository Contributions

232Total
Bugs
37
Commits
232
Features
108
Lines of code
216,618
Activity Months18

Work History

April 2026

11 Commits • 5 Features

Apr 1, 2026

April 2026 focused on security, reliability, and maintainability for saleor/apps. Delivered robust SMTP deprecation with auditing, improved template capabilities via Handlebars JSONParse, tightened dependency security with a pnpm-based audit workflow, enhanced metadata fetch observability with a shared logger, and implemented a comprehensive secret key rotation framework with migration support and updated docs across all 9 apps. Also stabilized tests and cleaned up legacy SMTP tooling to reduce risk and technical debt. These changes reduce risk, improve compliance, and enable faster issue diagnosis and secure app rotation across the platform.

March 2026

15 Commits • 4 Features

Mar 1, 2026

March 2026: Focused on delivering business-value features, hardening testing and security, and stabilizing CI for faster releases across saleor-dashboard and saleor/apps. Delivered measurable UX improvements, improved merchandising capabilities, and strengthened quality gates.

February 2026

31 Commits • 19 Features

Feb 1, 2026

February 2026 monthly summary for saleor-dashboard and saleor/apps. Key features delivered include: Playwright plugin for Claude Code integration; ProductVariant modal filtering; filtering enhancements for assign modals and category/collection dialogs; Storybook and pnpm audit hygiene; Slack workflow notifications and shared Slack notifications; Apps smoke test framework with secure secret management and streamlined CI usage; Chromatic deployment support and Node version modernization. Major bugs fixed include: end-to-end test reliability and assertion fixes; Dockerfile integrity issues resolved and build reliability improved; UI stability fixes (theme switcher rendering); code splitting fixes following index refactor; pnpm audit failure addressed. Overall impact: increased release confidence and velocity through more reliable tests, more robust CI/CD pipelines, and stronger security and visibility across repos, delivering measurable business value in faster, safer releases and better-operating product experiences. Technologies/skills demonstrated: Playwright-based E2E testing, Storybook configuration, pnpm/package hygiene, Dockerfile reliability, GitHub Actions workflows, secret management (1Password), Chromatic deployment, Node 22 modernization, React/TypeScript code quality, and changeset-driven releases.

January 2026

18 Commits • 7 Features

Jan 1, 2026

2026-01 monthly performance summary for Saleor team. Delivered stable release automation, security hardening, UI/UX refinements, and observability gains across saleor-dashboard, saleor-apps, saleor-docs. The work improved release reliability, reduced security risk surface, enhanced product filtering UX, fixed critical refund flow bug, and boosted debugging/monitoring capabilities. Technologies/skills demonstrated include pnpm workspace optimizations, Zod validation error handling, React/TypeScript UI work, changesets-based release notes, dev container tooling, and DynamoDB APL logging integration.

December 2025

15 Commits • 5 Features

Dec 1, 2025

December 2025 across saleor-docs, saleor/apps, and saleor-dashboard: Delivered concrete business value through user-facing documentation improvements, enhanced observability, capacity and reliability fixes, new UI capabilities, and tooling modernization. Key items include: consolidating and expanding docs for the Search App, Checkout, and App-SDK with troubleshooting guides and autocomplete details; adding comprehensive installation and API logging to improve operability and debugging; increasing memory limits for SMTP and Search apps to boost webhook processing capacity; fixing reliability issues such as HTTP 202 handling for missing customer data, strengthening Atobarai validation, and adding idempotency in the DynamoDB writer; introducing a Product Assignment modal with advanced filtering in the dashboard; upgrading development tooling and dependencies to improve error detection, React 18 compatibility, strict mode, and updates to app-sdk and Macaw UI. Overall impact: improved developer experience, faster integrations, greater system reliability, and reduced operational risk.

November 2025

7 Commits • 4 Features

Nov 1, 2025

November 2025 monthly summary for the dev team. Focused on delivering data-driven enhancements and stabilizing the development platform across saleor-dashboard and saleor/apps, with a strong emphasis on business value, reliability, and observability. Key features delivered: - Saleor Dashboard Metadata Filters Enhancement (repo: saleor/saleor-dashboard): Allow empty values for metadata filters and enforce key submission validation to enable existence-based filtering and more flexible queries. Deliverables anchored by commit e78b4a14b1ceb4282431300a6f06b30184f8e0f5. Related stabilize work included: Update package lock after release (#6031), upgrade pnpm (#6141), and refactor method names for clarity (#6067) via commits e418410e93a1e2a33d5162390770f40a11533881, 2cf38caf4b8b197ddd2680ef734e783652b04a6c, and 366c670cceb61f523ca27f4f4ee39caad543c764. - Maintenance and Tooling Stabilization (repo: saleor/saleor-dashboard): Stability and maintainability improvements including dependency lock update and pnpm upgrade, plus codebase refactor for clearer method names. Key features and improvements (repo: saleor/apps): - Stripe App Installation Logging and Monitoring: Implemented logging for failed Stripe app installations to improve debugging and monitoring, adjusted integration tests, and enhanced error handling. Commit f53f6e23f10625b6520d68941b4e66a3771f51e5. - PNPM Dependency Upgrade to 10.23.0: Upgraded package manager to pnpm 10.23.0 for compatibility and feature improvements (commit 4a896757ebbbaf9edd325cd98ac537b2c0126b03). Bug fixes: - Algolia Record Size Limit Error Handling (repo: saleor/apps): Enhanced error handling for Algolia 10KB record size limit to provide clearer communication when product data exceeds the limit. Commit 848e170e4b7fc7d1f901ac7161542a0b37c04fc2. Overall impact and accomplishments: - Improved data querying flexibility in the dashboard, reducing friction for existence-based metadata filtering and enabling richer analytics scenarios. - Strengthened system stability and maintainability through lockfile hygiene, tooling updates, and clearer method naming, reducing release risk. - Enhanced observability and debugging capabilities for Stripe app installations, leading to faster issue resolution and better customer support. - Increased reliability and performance readiness of the repo ecosystem through PNPM upgrade and proactive dependency management. Technologies/skills demonstrated: - Metadata validation and existence-based filtering logic, data querying enhancements. - Dependency management (pnpm), lockfile maintenance, and codebase refactoring for readability. - Logging, monitoring, and tests adaptation for third-party integrations (Stripe) and Algolia error handling. - Observability improvements and CI/test alignment in response to integration changes.

October 2025

16 Commits • 11 Features

Oct 1, 2025

October 2025 performance summary focusing on delivering high-impact features, stabilizing core order processing, expanding data-filtering capabilities, reinforcing security and debugging tools, and advancing developer experience through tooling and documentation improvements. The work across dashboard, docs, apps, and core packages reinforced business value through better UX, reliability, and faster iteration.

September 2025

31 Commits • 15 Features

Sep 1, 2025

Sep 2025 delivered measurable business value across admin UX, security, data modeling, and developer productivity. Key user-facing improvements include Order filtering enhancements in the dashboard, security and reliability improvements for AvaTax apps, and robust SINGLE_REFERENCE attribute handling. Technical debt reduction and tooling improvements were accelerated through code quality enhancements, linting/formatting, and build tooling updates. Developer experience was boosted via updated local development guidance and on-host Postgres recommendations, alongside Claude integrations and documentation updates.

August 2025

5 Commits • 3 Features

Aug 1, 2025

2025-08: Delivered major automation, quality, and security improvements for saleor-dashboard, including migrating E2E tests to Playwright, upgrading TypeScript/ESLint, adding CodeQL analysis, and fixing a product filtering bug. These changes improved test reliability, developer experience, and security coverage, enabling faster and safer releases.

July 2025

10 Commits • 4 Features

Jul 1, 2025

July 2025 — Saleor Dashboard delivered targeted UX and modernization work that improves product discovery, extension management, and developer experience, while stabilizing the test suite. Key changes include enhanced Product Filtering and Search (FilterDefinition usage and REFERENCE attribute filtering), UI simplifications for Extension Management, improved Attribute Management UX with @dnd-kit drag-and-drop and clickable references, and added deprecation guidance for migrated components. A dedicated End-to-End test stability fix reduces flaky tests, boosting release confidence.

June 2025

14 Commits • 6 Features

Jun 1, 2025

June 2025 monthly summary focusing on developer-driven features, bug fixes, and impact across Saleor repositories. Highlights include UX and onboarding improvements in the dashboard, stability fixes for UI components, and URL/redirect restructurings for maintainability. Tech stack usage spans React/TypeScript frontend polish, routing/redirect strategies, and documentation alignment to product terminology.

May 2025

27 Commits • 12 Features

May 1, 2025

May 2025 monthly performance summary: Delivered significant documentation improvements for the App platform and a comprehensive set of navigation, onboarding, and UI enhancements across the Saleor dashboard extensions experience. Focused on strengthening business value by enabling faster app adoption, reducing navigation friction, and improving reliability around app/extensions installation and permissions. Key outcomes include clearer AppManifest references and AppErrorCode documentation; redesigned extension navigation and moved app views to /extensions; improved onboarding and UI consistency; and a series of targeted bug fixes that stabilize the developer and end-user experience.

April 2025

11 Commits • 3 Features

Apr 1, 2025

April 2025 was marked by concrete platform improvements across docs and dashboard repos, delivering measurable business value through clearer guidance, more reliable extension management, and stabilized CI/testing. Notable work included documenting a critical Adyen API scope caveat to reduce merchant integration friction, a major overhaul of the Extensions Platform for better UX and reliability, a streamlined workflow for custom extensions, and hardened CI/test processes to prevent flaky builds and ensure trusted origins.

March 2025

4 Commits • 2 Features

Mar 1, 2025

March 2025 performance summary for saleor-dashboard: Delivered user experience improvements for order line metadata management, completed a reliability-focused UI polish, and upgraded foundational runtime. These changes enhance admin workflows, improve metadata visibility across orders and products, and align the codebase with modern runtime standards.

February 2025

10 Commits • 5 Features

Feb 1, 2025

February 2025 monthly summary focusing on delivering business value through feature releases, reliability fixes, and developer experience improvements across the Saleor ecosystem. The month emphasized releasing observable, robust integrations, streamlining local development, improving dashboard capabilities, and maintaining clean, well-documented repositories to support faster, safer releases.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for saleor/saleor-docs: Delivered a foundational update to the Checkout docs by introducing a new pre-payment processing example flow, using the Saleor Transaction API. This update clarifies stock reservation after payment confirmation and outlines multiple checkout integration strategies, reducing merchant integration time and support load.

December 2024

5 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for saleor-docs focused on delivering improved Adyen Payment Integration documentation. Consolidated updates across payment lifecycle, event handling, data fields, webhook integration, and visual workflow clarifications to reduce checkout errors and integration confusion. Also aligned changelog and release notes for upcoming Adyen app changes, and updated cross-reference headers and diagrams to improve doc accuracy and developer onboarding. Contributed to release readiness and documented changes with traceable commits.

November 2024

1 Commits • 1 Features

Nov 1, 2024

Month: 2024-11 — Focused documentation work in saleor-docs delivering the Adyen Webhook Setup Documentation update. Key feature delivered: explicitly list all Adyen webhook events required by the App, plus prerequisites and step-by-step configuration guidance to improve onboarding and integration reliability. No major bugs reported for this repository this month. Impact: smoother third-party integrations, reduced onboarding friction, and lower support load due to clearer webhook requirements and setup steps. Technologies/skills demonstrated: technical writing, API/webhook configuration knowledge, documentation tooling, and cross-team collaboration to clarify integration prerequisites.

Activity

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Quality Metrics

Correctness92.8%
Maintainability88.6%
Architecture87.8%
Performance86.0%
AI Usage29.2%

Skills & Technologies

Programming Languages

BashCSSDockerfileGraphQLHTMLJSONJavaScriptMarkdownPythonShell

Technical Skills

API DevelopmentAPI IntegrationAPI developmentAPI documentationAPI integrationAWSApollo ClientBackend DevelopmentBug FixingBuild ToolsCI/CDCI/CD ConfigurationCSSCSS ModulesCode Cleanup

Repositories Contributed To

4 repos

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

saleor/saleor-dashboard

Feb 2025 Mar 2026
14 Months active

Languages Used

GraphQLJavaScriptMarkdownTypeScriptYAMLCSSDockerfileHTML

Technical Skills

CI/CDComponent DevelopmentConfiguration ManagementDependency ManagementDocumentationForm Handling

saleor/apps

Sep 2025 Apr 2026
8 Months active

Languages Used

CSSJavaScriptMarkdownTypeScriptJSONYAML

Technical Skills

API DevelopmentAPI IntegrationBackend DevelopmentCode RefactoringComponent DevelopmentConfiguration

saleor/saleor-docs

Nov 2024 Jan 2026
11 Months active

Languages Used

MarkdownCSSJavaScript

Technical Skills

API IntegrationDocumentationTechnical WritingContent ManagementFront End DevelopmentAPI documentation

saleor/saleor

Feb 2025 Oct 2025
4 Months active

Languages Used

MarkdownPythonShellTOMLYAMLGraphQL

Technical Skills

API DevelopmentBackend DevelopmentConfiguration ManagementDevOpsDockerDocumentation