> Markdown version of [/jobs/ext/2591126-senior-software-engineer-go-golang-oss-package-ecosystem](https://www.wearedevelopers.com/jobs/ext/2591126-senior-software-engineer-go-golang-oss-package-ecosystem). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# Senior Software Engineer - Go (Golang) OSS Package Ecosystem

- **Company:** Volto USA
- **Location:** Redmond, WA, United States
- **Experience:** Expert
- **Contract:** Temporary to permanent
- **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), Cloud Computing, Code Review, Computer Programming, Continuous Integration, Linux, File Systems, Memory Management, Github, NT File System (NTFS), Open Source Technology, Regression Testing, Software Configuration Management, Software Engineering, Management of Software Versions, Software Vulnerability Management, Concurrency, Git, Build Management, Containerization, Gitlab-ci, Patch Management, Free and Open-Source Software, Build Tools, Codebase, Code Restructuring, Software Version Control, Docker, Jenkins, Code Migration, Golang
- **Published:** August 30, 2026
- **Apply:** https://www.careerjet.com/jobad/us912cf26623e9e08d2da71f0738ab0f47

## About the Role

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

## Description

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., 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, You will be part of a software engineering team and will be working on Windows Core File System components such as NTFS, REFS, Cache Manager, Cloud Files, Windows Container Filter,…

 + 8 days ago


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