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Bojan Kopunovic

PROFILE

Bojan Kopunovic

Worked on the jumperexchange/jumper-exchange repository to enhance end-to-end testing reliability and CI/CD stability for wallet flows. Focused on integrating Synpress for MetaMask connectivity, implementing deterministic dependency management with Yarn.lock, and enabling sharded test execution to accelerate feedback cycles. Improved CI pipelines by optimizing cache management, refining Playwright and Xvfb-based headless testing, and tuning configuration for local environments, worker allocation, and timeouts. Addressed test flakiness and reduced redundant code, resulting in more robust production readiness. Utilized JavaScript, TypeScript, and YAML to deliver ten new features and resolve eleven bugs, demonstrating depth in test automation and DevOps practices.

Overall Statistics

Feature vs Bugs

48%Features

Repository Contributions

60Total
Bugs
11
Commits
60
Features
10
Lines of code
2,812
Activity Months1

Work History

December 2024

60 Commits • 10 Features

Dec 1, 2024

December 2024 focused on stabilizing end-to-end testing, increasing CI throughput, and delivering reliable wallet flows in Jumper. Key features delivered include Synpress integration for Metamask connectivity in Jumper app, deterministic builds via Yarn.lock, and sharded test execution. Major improvements in test reliability and CI stability were achieved through Synpress cache enhancements, cache-building optimizations, and comprehensive CI/Playwright pipeline hardening (local env setup, server reuse, worker and timeout tuning, plus headless Xvfb-based end-to-end testing). These efforts collectively reduced flaky tests, accelerated feedback loops, and improved production readiness for new features. Technologies demonstrated include Synpress, Playwright, Xvfb, caching strategies, CI YAML tuning, and parallel test execution.

Activity

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Quality Metrics

Correctness81.8%
Maintainability86.4%
Architecture75.6%
Performance73.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

BashJSONJavaScriptShellTypeScriptYAML

Technical Skills

Asynchronous ProgrammingBackend DevelopmentBuild AutomationBuild ToolsCI/CDConfigurationDependency ManagementDevOpsEnd-to-End TestingEnd-to-end testingFrontend DevelopmentGitHub ActionsJavaScriptMetaMask IntegrationNode.js

Repositories Contributed To

1 repo

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

jumperexchange/jumper-exchange

Dec 2024 Dec 2024
1 Month active

Languages Used

BashJSONJavaScriptShellTypeScriptYAML

Technical Skills

Asynchronous ProgrammingBackend DevelopmentBuild AutomationBuild ToolsCI/CDConfiguration