Golang Developer OSS C2C

Role:
Go (Golang) Engineers with OSS Package Ecosystem

Location:

Redmond Washington / Frisco, TX (Hybrid)

Exp: 7 + years

Contract

Rate: $60/hr on C2C

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

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

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

• 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
  • Git Hub Actions
  • Jenkins
  • Buildkite
  • Git Lab 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.

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

• 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.