Senior Software Engineer – Go (Golang) OSS Package Ecosystem

About the role

Hi Team,

Hope all is going great on your end!

I m Muthu, a Senior Technical Recruiter at Volto Consulting.

Job Title: Senior Software Engineer Go (Golang) OSS Package Ecosystem

Location: Redmond, WA Hybrid

Job Type: Contract 6 Months

Experience Required: 7+ Years

Skills: Golang, Go Modules, Bazel, CI/CD

LinkedIn must

Job Description

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.

The ideal candidate will possess deep expertise in Go modules, dependency management, build systems, CI/CD pipelines, and OSS package maintenance. This role requires hands-on engineering ownership across package migration, compatibility remediation, Copybara workflows, build/test stabilization, local patch management, and upstream contribution activities.

Key Responsibilities

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.

Required Technical Skills

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.

Skills

Mandatory Skills: Golang