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Michal Zielenkiewicz

PROFILE

Michal Zielenkiewicz

Michal developed and modernized core user-facing features for the Oasis Protocol’s explorer and wallet repositories, focusing on UI consistency, privacy, and release readiness. He migrated the explorer’s interface from Material-UI to the Oasis UI Library and Tailwind CSS, improving maintainability and aligning with the latest design system. In the wallet, Michal implemented privacy enhancements and mobile update management, integrating Redux Toolkit for persistent state and Capacitor for cross-platform compatibility. He upgraded routing to React Router v7, removed legacy analytics for privacy, and strengthened CI/CD pipelines using GitHub Actions. His work, primarily in TypeScript and React, demonstrated deep architectural ownership.

Overall Statistics

Feature vs Bugs

77%Features

Repository Contributions

584Total
Bugs
55
Commits
584
Features
188
Lines of code
247,076
Activity Months18

Work History

February 2026

5 Commits • 3 Features

Feb 1, 2026

Feb 2026 monthly summary for oasisprotocol: Delivered privacy and security enhancements, modernized routing, and ensured CI stability across explorer and wallet repositories. Key outcomes include removing Matomo analytics to reduce privacy footprint, upgrading routing to React Router v7 for improved UX and maintainability, hardening GitHub workflows with explicit permissions for stronger security, and pinning setuptools to ensure Python 3.12 compatibility and CI stability.

January 2026

22 Commits • 6 Features

Jan 1, 2026

January 2026 performance summary for oasisprotocol. Delivered user-facing features in wallet and explorer, improved UI consistency, and strengthened code quality across the codebase. Focus areas included configurable mobile update behavior, improved marketing assets/testing pipelines for app stores, and broader lint/architecture improvements to enhance maintainability and scalability. The work aligns with business goals of improving onboarding, reducing time-to-market for asset readiness, and tightening release hygiene across repos.

December 2025

61 Commits • 21 Features

Dec 1, 2025

December 2025 performance highlights: Implemented broad mobile modernization and privacy UX enhancements across Oasis Wallet and Explorer, focusing on release readiness, platform compatibility, and design-system consistency. Delivered Capacitor v7 migration with plugin updates and privacy-screen integration; synchronized Android versioning/builds; implemented ScreenPrivacySelect with Redux persistence and app-init initialization; migrated UI icons to Lucide and upgraded the Oasis UI Library; and tightened release pipeline with CI improvements and test snapshot alignment. Major bugs addressed include mobile UI layout refinements and deprecation cleanup, plus UpdateGate handling fixes.

November 2025

46 Commits • 15 Features

Nov 1, 2025

November 2025 performance highlights across oasisprotocol/explorer and oasisprotocol/wallet. Delivered major UI modernization, migrated away from MUI to the Oasis UI Library and Tailwind, and advanced design-system alignment. Implemented homepage redesigns (and the removal cleanup), added new UI components, and executed release preparation and API/bindings updates for multiple versions, driving faster feature delivery and cleaner maintenance. Fixed stability issues in wallet transactions and improved i18n usage and validators counts, enhancing reliability and user trust.

October 2025

64 Commits • 18 Features

Oct 1, 2025

October 2025 performance-focused month for oasisprotocol/explorer. Delivered substantial UI modernization, dependency cleanup, and release readiness. Key outcomes include a comprehensive Oasis UI Library migration and component replacement across core UI (BrandProgressBar, Progress, ButtonBase, TableSearchBar) with updated dependencies; CodeDisplay cleanup removing wrappers and MUI Box; Search UX enhancements with full Oasis UI migration and mobile/keyboard improvements; Tailwind-based theming and UI modernization reducing MUI theme usage; and thorough Release 1.24.2 prep including CHANGELOG updates and cross-dashboard Card migrations. Additional observability improvements via replica details metadata display and aligned API bindings. These efforts unlock faster UI performance, lower maintenance costs, and smoother deployment while delivering a consistent, accessible user experience.

September 2025

20 Commits • 9 Features

Sep 1, 2025

September 2025 performance summary for Oasis Explorer and Wallet focused on UI consistency, reliability, and CI/CD improvements. Key work delivered includes upgrading the Oasis UI Library to a newer commit, standardizing pagination and table components via Oasis UI Library, and cleaning up UI themes to improve maintainability. Accessibility improvements were implemented in LayerPicker with ARIA descriptions and proper layout via DrawerTitle. Added gas usage visibility in consensus transaction details and updated related data models. Expanded CI/CD coverage by extending workflows to stable/* branches for both Explorer and Wallet, enabling more robust testing and deployment for stable releases. These changes reduce technical debt, improve user experience, and accelerate delivery of stable features to customers.

August 2025

48 Commits • 10 Features

Aug 1, 2025

August 2025: Modernization and reliability sprint for oasisprotocol/explorer. Key work includes migrating UI to the Oasis UI Library and removing legacy MUI usage to align with the new design system; Tailwind and Vite migration adjustments to ensure a clean Parcel-to-Vite transition; badges and token UI refreshed; uptime indicators added for validators; API bindings updated; navigation and UI transitions refined; UI tweaks for blocks/snapshot views; and release readiness preparation for 1.24.1. Also fixed provider_instance_admin parsing in rofl.Create and stabilized analytics tests to reduce flakiness.

July 2025

14 Commits • 4 Features

Jul 1, 2025

July 2025 (2025-07) — Oasis Explorer delivered key UI and data reliability improvements, expanded transaction support, and prepared comprehensive release documentation. Highlights include release notes for 1.23.1/1.23.2 with UI fixes, integration of roflmarket.InstanceChangeAdmin API binding into the explorer, robustness enhancements for token data display, migration of core UI components to the Oasis UI Library for a consistent UX, and preparation of 1.24.0 release notes. These efforts improve reliability, developer experience, and business value through clearer release communications, broader transaction support, and a unified UI foundation.

June 2025

11 Commits • 4 Features

Jun 1, 2025

June 2025 monthly performance summary for oasisprotocol/explorer: Delivered core front-end improvements, improved navigation, and release readiness. Highlights: Tailwind CSS integration and Vite compatibility; UI library cleanup; ROFL app link rendering; enhanced search functionality; and Release 1.22.0 notes assembled. Impact: improved UI consistency, faster navigation, reduced maintenance burden, and streamlined release workflow. Technologies: Tailwind CSS, Vite, linting strategies, submodule management, and improved search/UI components.

May 2025

30 Commits • 8 Features

May 1, 2025

May 2025 performance summary focusing on Oasis Explorer and wallet work: Node UI improvements, build tooling modernization, env var integration, and deployment workflow enhancements, delivering tangible business value and improved developer velocity.

April 2025

69 Commits • 21 Features

Apr 1, 2025

April 2025 monthly review for Oasis Explorer and Wallet. Delivered several high-value frontend improvements, ROFL integration, and release-readiness work across multiple repos, with a focus on business value, user experience, and API consistency. Key outcomes include enhanced data rendering and visualization, richer search results with ROFL apps, and prepared releases for upcoming versions.

March 2025

57 Commits • 22 Features

Mar 1, 2025

March 2025 performance focused on delivering ROFL explorer enhancements, modernizing API bindings, and finalizing release 1.17.0. Key outcomes include a UI-refactored ROFL App Status Badge, a comprehensive ROFL Apps list with metadata and policy surfaces, API layer modernization, and a structured release prep with changelog updates. Stability improvements addressed Storybook wrapper and undefined property access issues, and testnet navigation for wallet paratimes was improved.

February 2025

21 Commits • 7 Features

Feb 1, 2025

Concise monthly summary for 2025-02 focusing on business value and technical achievements across explorer, sapphire-paratime, and wallet. Delivered release consolidation, UI enhancements, data reliability fixes, robustness improvements, and code quality across repos, enabling faster releases and improved user experience.

January 2025

15 Commits • 6 Features

Jan 1, 2025

January 2025 performance summary: Across oasisprotocol/explorer, oasisprotocol/wallet, and oasisprotocol/sapphire-paratime, delivered performance safeguards, UX improvements, and backend/tooling enhancements to strengthen reliability, data integrity, and developer experience. Key outcomes include a robust API guardrail for named validators, an enhanced JSON preview UX, backend alignment with Oasis Explorer, a feature-rich Wallet 2.1.0 with Oasis Scan v2/Nexus API, Android CI tooling refresh, and advanced Ethereum provider integration with Sapphire Snap.

December 2024

45 Commits • 17 Features

Dec 1, 2024

Summary for 2024-12: Focused on stabilizing data correctness, reducing unnecessary network load, and accelerating Nexus-aligned backend integration, while advancing release readiness and developer tooling across multiple Oasis projects. Built momentum for improved user experience, better performance, and stronger end-to-end testing in preparation for the next release. Key features delivered and improvements across repositories: - oasisprotocol/wallet: Migrated wallet data sources to Nexus API and removed Oasis Scan v1 components; updated tests and references to align with Nexus backend, improving reliability and reducing tech debt. - oasisprotocol/explorer: Enabled Consensus search features (block and transaction search engines, search suggestions) and refined ParaTime cards for testnet; updated API bindings and UI/state to support new search surface. - UI/UX and data correctness: Token Transfers UI fixed incorrect query parameter usage; Token List polling disabled to cut unnecessary network requests and improve performance; Pending state support added across StatusIcon and details pages; UI styling improvements for Paratimes and related dashboards; ROFL icons for transaction methods and events; token snapshot card cleanup. - Data quality and stability: Consensus balance display corrected; validator redirect handling and commission bounds checks improved; uptime component usage temporarily removed with cleanup. - Release readiness and tooling: Changelog and versioning maintenance; coordinated release preparation for 1.15.x; E2E testing scaffolding for new vendors; Nexus integration docs and bindings tooling updates; submodule bumps to incorporate latest fixes. Overall impact: - Strengthened data accuracy and user experience, with measurable reductions in network traffic and improved backend alignment with Nexus API. - Increased maintainability and readiness for upcoming release through improved docs, tests, and release engineering.

November 2024

27 Commits • 9 Features

Nov 1, 2024

November 2024 monthly summary focused on delivering business value through localnet development enablement, data quality improvements, and strengthened testing. Key work spanned explorer and wallet repos, with notable UX and API enhancements that reduce onboarding friction for developers and improve end-user reliability and insight.

October 2024

28 Commits • 7 Features

Oct 1, 2024

October 2024 monthly summary of deliverables across oasisprotocol wallet and explorer repos. Focused on expanding data coverage, improving reliability, and enhancing user experience while enabling faster go-to-market with richer APIs and stabilized environments. Highlights: - Oasis Scan API v2 integration: backend setup and wiring of endpoints for validators list, delegations, account info, and transactions, enabling broader wallet and validator data access. Representative commits include setup, backend definition, and multiple API endpoints. - Nexus API v2 integration and runtime endpoints: backend setup with delegations, account details, and transaction APIs, and extended with Nexus runtime transactions API and Oasis Explorer integration to surface runtime data in the explorer. - Performance and reliability improvements: removed redundant fetching of transaction details to optimize runtime transactions workflow; validator address handling improvements and reclaim escrow fixes to reduce errors and improve security. - Maintenance and environment readiness: synchronized settings.json and updated changelogs for Oasis and Nexus API integrations; added Nexus to CSP for testnet development and testing. - Explorer frontend UX enhancements: chart tooltip now displays precise balance values; Validator Details Page updated with voting power, staked balance, balance changes, and uptime status for clearer insights. Business value: - Faster access to richer data through Oasis Scan v2 and Nexus v2 endpoints expands wallet and validator capabilities. - Reduced runtime latency and fewer errors through targeted optimizations and address handling fixes. - Improved developer and tester experience with CSP/testnet readiness and improved changelog/version visibility. - Enhanced user experience in explorer with precise balance data and richer validator information. Technologies/skills demonstrated: - Backend API design and integration (Oasis Scan v2, Nexus API v2, runtime APIs) - Frontend UI enhancements (explorer charts and validator details UI) - Performance optimization and reliability engineering (redundant fetch removal, reclaim escrow fixes) - Release engineering and documentation (settings synchronization, changelog maintenance)

August 2024

1 Commits • 1 Features

Aug 1, 2024

August 2024 monthly summary for oasisprotocol/explorer: Delivered a design-aligned UI improvement by updating the MUI table header font weight to reflect new design specifications, enhancing visual consistency and readability across data tables. The change was implemented via commit 1b1c8d14409305d5287b9a68f365473e113587a9 and contributed to cohesive theming with the updated design system. No major bugs were fixed in August for this repository; minor fixes and QA tasks focused on polish. Technologies demonstrated include React and Material-UI (MUI), with design-system-driven styling and collaboration with design to ensure accessibility and consistency.

Activity

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Quality Metrics

Correctness94.2%
Maintainability93.0%
Architecture90.4%
Performance90.4%
AI Usage21.4%

Skills & Technologies

Programming Languages

CSSGit AttributesGoGradleGroovyHTMLJSONJavaJavaScriptKotlin

Technical Skills

API DesignAPI DevelopmentAPI IntegrationAPI MockingAPI TestingAPI integrationAPI testingAccessibilityAddress ConversionAndroid DevelopmentAndroid developmentAsset ManagementBackend DevelopmentBlockchainBlockchain Integration

Repositories Contributed To

5 repos

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

oasisprotocol/explorer

Aug 2024 Feb 2026
18 Months active

Languages Used

TypeScriptJavaScriptMarkdownCSSYAMLtsxHTMLJSON

Technical Skills

Reactfront end developmentAPI DevelopmentAPI IntegrationBackend DevelopmentConfiguration Management

oasisprotocol/wallet

Oct 2024 Feb 2026
13 Months active

Languages Used

JSONJavaScriptMarkdownTypeScriptGit AttributesShellGoYAML

Technical Skills

API DevelopmentAPI IntegrationAPI integrationBackend DevelopmentBlockchainBlockchain Integration

oasisprotocol/sapphire-paratime

Dec 2024 Feb 2025
3 Months active

Languages Used

MarkdownTypeScript

Technical Skills

DocumentationAPI DesignBackend DevelopmentCryptographyEthereum Provider APIJavaScript

oasisprotocol/docs

Dec 2024 Dec 2024
1 Month active

Languages Used

Markdown

Technical Skills

Documentation

oasisprotocol/oasis-sdk

Dec 2024 Dec 2024
1 Month active

Languages Used

Markdown

Technical Skills

Documentation