Golang Developer

Role Summary

We are seeking an experienced Go (Golang) Open Source Software Engineer to drive the modernization and maintenance of large-scale third-party package ecosystems.

The engineer will be responsible for performing version upgrades of open-source Go packages, resolving dependency conflicts, fixing code breaks introduced by package updates, and ensuring successful validation through build, test, and presubmit pipelines.

Open Source Package Upgrade Management

• Perform version upgrades of Go open-source packages across large codebases.
• Analyze package dependencies and transitive dependency chains.
• Assess compatibility impact of package upgrades on consuming applications.
• Drive package modernization and retirement of obsolete dependencies.
• Manage end-to-end package migration activities.

Dependency Analysis & Remediation

• Investigate dependency conflicts and version incompatibilities.
• Resolve issues arising from indirect and nested dependencies.
• Analyze API deprecations and breaking changes introduced by package upgrades.
• Create remediation plans for application and library compatibility issues.
• Develop dependency migration strategies for large package ecosystems.

Go Development & Debugging

• Troubleshoot and resolve code breaks resulting from package version migrations.
• Modify Go applications and libraries to align with updated package APIs.
• Perform root cause analysis of runtime, functional, and integration failures.
• Develop and maintain fixes for OSS-related defects.
• Contribute improvements and fixes to upstream open-source projects where appropriate.

Build & Test Engineering

• Diagnose and resolve build failures triggered by package upgrades.
• Investigate and fix unit, integration, and regression test failures.
• Ensure successful execution of CI/CD validation pipelines.
• Resolve failures identified during global presubmit validation processes.
• Improve build reliability and automation around package migration workflows.

Copybara & Source Synchronization

• Manage Copybara configurations and synchronization workflows.
• Troubleshoot repository synchronization and code migration issues.
• Resolve merge conflicts and code integration challenges.
• Support source movement between internal and external repositories.

Patch Management

• Create and maintain local patches for package compatibility.
• Track upstream fixes and assess opportunities to retire local patches.
• Manage patch lifecycle and release readiness.
• Maintain upgrade documentation and remediation records.

Engineering Automation

• Develop automation for:
• Dependency discovery
• Version analysis
• Impact assessment
• Upgrade validation
• Failure triage
• Build tooling to improve migration velocity and engineering productivity.

Go Programming Expertise

• Strong software engineering experience in Go (Golang).
• Deep understanding of:
• Goroutines
• Channels
• Concurrency patterns
• Memory management
• Context propagation
• Error handling strategies
• Experience developing and maintaining production-grade Go applications.

Go Ecosystem Knowledge

• Extensive experience with:
• Go Modules
• GOPROXY
• Dependency resolution
• Semantic versioning
• Package publishing
• Open-source package maintenance.

Build & CI/CD

• Strong experience with:
• Bazel
• Go Build
• Go Test
• GitHub Actions
• Jenkins
• Buildkite
• GitLab CI
• Ability to troubleshoot large-scale build environments.

Dependency & Migration Engineering

• Experience performing:
• Package upgrades
• Framework migrations
• Dependency conflict resolution
• Version compatibility analysis
• API migration and refactoring.

Source Control & Repository Management

• Git expertise.
• Experience with monorepos and large-scale codebases.
• Familiarity with Copybara or equivalent repository synchronization tools.
• Code review and branching strategy experience.

Platform & Infrastructure

• Linux systems expertise.
• Container technologies:
• Docker
• Kubernetes
• Familiarity with cloud-native development practices.

Preferred Qualifications

• Experience managing large-scale OSS upgrade programs.
• Contributions to public Go open-source projects.
• Experience with supply-chain security and dependency governance.
• Familiarity with vulnerability remediation practices.
• Experience with SBOM generation and management.
• Understanding of modern software release engineering practices.