Senior Go Software Engineer with Copybara and OSS

Job Title: Senior Go Software Engineer with Copybara and OSSLocation: Redmond, WAType: Contract Primary Focus: Third-Party Open-Source Package UpgradesJob SummaryLooking for a Senior Go Engineer to handle third-party OSS package and dependency upgrades in a large-scale monorepo.

The role involves upgrading Go modules, resolving dependency/API compatibility issues, troubleshooting Go/Bazel builds, fixing existing test failures, and completing CI/presubmit validation.Key ResponsibilitiesUpgrade Go modules and third-party OSS packages.Analyze dependency trees, compatibility risks, and breaking API changes.Resolve API migration and downstream code issues.Troubleshoot Go and Bazel build failures.Fix existing test, CI, and presubmit failures.Manage local patches and dependency remediation.Work with Copybara/source synchronization.Submit review-ready changes and maintain migration documentation.Develop automation/playbooks for package upgrade and validation processes.Required SkillsGo / GolangGo ModulesOSS Package UpgradesDependency ManagementSemantic VersioningBazelGitLinuxCI / PresubmitPythonShell / BashPreferredCopybara or similar source synchronization toolsLarge-scale OSS dependency upgradesComplex dependency graphs and API migrationsPlatform/Developer InfrastructureBuild or Release EngineeringMonorepo experienceIdeal CandidateA Senior Go Engineer with strong experience in Go dependency modernization, OSS package upgrades, Bazel/build troubleshooting, CI/presubmit, monorepos, and Linux, preferably from platform engineering, developer infrastructure, build engineering, or release engineering backgrounds.