Golang Developer C2C requirements (Remote) only

Tech Mirrors; New York (NY); Remote; USD 76,000 - 103,000; Full time

Job summary

Tech Mirrors seeks a Go (Golang) Engineer to lead OSS package upgrade programs, ensure compatibility, and drive modernization across large codebases. You will manage end-to-end migration tasks, analyze transitive dependencies, and contribute fixes upstream where applicable.

The role emphasizes building reliable CI/CD pipelines, handling complex dependency graphs, and collaborating with cross-functional teams to minimize risk during upgrades.

Qualifications

• Extensive production experience with Go (Golang).
• Strong understanding of dependency management and OSS upgrades.
• Experience managing large-scale OSS upgrade programs.
• Familiarity with SBOM generation and vulnerability remediation.

Responsibilities

• Perform version upgrades of Go open-source packages across large codebases.
• Analyze 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 API deprecations.
• Create remediation plans for compatibility issues.
• Develop dependency migration strategies for large ecosystems.
• Troubleshoot builds and tests after upgrades.
• Contribute fixes to upstream OSS projects where appropriate.
• Develop automation for dependency discovery, analysis, upgrade validation.

Skills

Go programming

Concurrency patterns

Context propagation

Error handling strategies

Production-grade Go

Tools

Go Modules

GOPROXY

Dependency resolution

SemVer

Build tooling

Bazel

Go Build

Go Test

GitHub Actions

Jenkins

Buildkite

GitLab CI

Docker

Kubernetes

Job description

Role: Go (Golang) Engineers with OSS Package Ecosystem

Contract

Remote

Rate: $65/hr on C2C

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

Build & CI/CD

• Strong experience with:
• Bazel
• Go Build
• Go Test
• GitHub Actions
• Jenkins
• Buildkite
• GitLab CI

Dependency & Migration Engineering

• Experience performing:
• Package upgrades
• Framework migrations
• Dependency conflict resolution
• Version compatibility analysis
• API migration and refactoring
• Source Control & Repository Management

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.