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Exceeds
Yauheni Horbach

PROFILE

Yauheni Horbach

Over several months, contributed to Expensify/App and related forks by building and refining split expense workflows, focusing on reliability, user experience, and maintainability. Enhanced the core logic for editing, creating, and deleting split transactions, introduced robust validation and multilingual feedback, and improved policy and currency-rate resolution. Leveraged React, TypeScript, and JavaScript to implement reusable UI components, optimize state management, and enforce code quality through ESLint and unit testing. Refactored transaction logic for clarity and performance, stabilized integrations, and maintained dependencies. These efforts reduced user errors, improved reporting accuracy, and accelerated both user-facing features and internal engineering velocity across repositories.

Overall Statistics

Feature vs Bugs

54%Features

Repository Contributions

78Total
Bugs
19
Commits
78
Features
22
Lines of code
5,812
Activity Months5

Work History

June 2026

4 Commits • 1 Features

Jun 1, 2026

June 2026: In Expensify/App, delivered critical policy resolution improvements and a currency-rate fix that enhance accuracy and performance. Highlights include standardizing fallback logic for split expense resolution, migrating to a moving expenses policy with usePolicyForMovingExpenses, and refactoring to reduce re-renders; plus a P2P rate resolution fix that returns undefined for P2P rates instead of using a workspace policy to avoid currency mismatches. Updated unit tests accompany both changes, strengthening regression safety and overall quality.

February 2026

11 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for callstack-internal/Expensify-App focused on stabilizing the Split Expense workflow and hardening IOU/Waypoint handling. Delivered user-facing UX improvements, code quality enhancements, and TypeScript fixes across the repository, resulting in a more robust and maintainable cash workflow experience for users and engineers.

January 2026

23 Commits • 6 Features

Jan 1, 2026

January 2026 performance: Delivered core UX improvements for expense management, reinforced data integrity, and stabilized the development environment across Expensify/App and internal Expensify-App repos. Achievements include enhancing validation feedback for expense splits, introducing a reusable ConfirmModal for delete confirmations, multilingual translations for workspace limit messages, and comprehensive internal maintenance to align dependencies and formatting. In the internal Expensify-App, we implemented robust distance-based split expense calculations with tests, refined the SplitExpenseEdit UI, preserved merchant data on unchanged splits, and completed lint/quality cleanup to raise engineering velocity and release readiness.

October 2025

28 Commits • 11 Features

Oct 1, 2025

2025-10 Monthly Summary for margelo/expensify-app-fork: Stabilized core expense-splits flow and improved data integrity, delivered UX and code quality improvements, and set the stage for scalable maintenance. Focused on delivering reliable split creation/deletion, reducing regressions, and accelerating developer iterations for faster business value delivery.

September 2025

12 Commits • 3 Features

Sep 1, 2025

Sep 2025: Delivered significant enhancements to the Split Expenses workflow in margelo/expensify-app-fork, focusing on reliability, UX, and traceability. Key features implemented include UI and data-flow enhancements for split editing, robust editability rules driven by expense status, and a new tracking field for split updates. Visual feedback improvements were added to highlight selected items, and a broad set of code quality fixes stabilized IOU and transaction logic. These changes improve accuracy in multi-language split edits, reduce user errors, enable better reporting, and accelerate reimbursement workflows.

Activity

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Quality Metrics

Correctness92.0%
Maintainability92.0%
Architecture90.0%
Performance89.2%
AI Usage24.4%

Skills & Technologies

Programming Languages

JSONJavaScriptNoneTypeScript

Technical Skills

API IntegrationCode FormattingCode QualityESLintFront End DevelopmentFront-end DevelopmentFrontend DevelopmentFull Stack DevelopmentHooksInternationalization (i18n)JavaScriptJestMobile DevelopmentNavigationNode

Repositories Contributed To

3 repos

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

margelo/expensify-app-fork

Sep 2025 Oct 2025
2 Months active

Languages Used

JavaScriptTypeScript

Technical Skills

Code FormattingFront-end DevelopmentFull Stack DevelopmentInternationalization (i18n)Mobile DevelopmentReact

callstack-internal/Expensify-App

Jan 2026 Feb 2026
2 Months active

Languages Used

JSONJavaScriptNoneTypeScript

Technical Skills

ESLintJavaScriptNoneReactTypeScriptbackend development

Expensify/App

Jan 2026 Jun 2026
2 Months active

Languages Used

JavaScriptNoneTypeScript

Technical Skills

Front End DevelopmentNoneReactTypeScriptfront end developmenti18n