Staff Developer Experience Engineer: Platform&CI/CD Leader

horizon3ai; United States; Hybrid; USD 200,000 - 270,000; Full time

Benefits offered by this job

Health insurance

Equity/Stock options

Flexible vacation policy

Generous parental leave

Hybrid & Remote Work

Job summary

Horizon3 is seeking a Staff Developer Experience Engineer to shape how Horizon3 engineers build, test, release, and operate software. You will define architecture for local development, CI/CD, build systems, and release workflows, and lead initiatives across engineering to improve speed, quality, and security.

You’ll mentor engineers, craft reusable tooling and templates, and collaborate with Platform, Security, QA, and Product teams to raise the engineering bar at Horizon3.

Qualifications

• 8+ years in developer experience or related roles.
• Deep experience designing and operating CI/CD systems, preferably GitLab CI/CD and self-hosted runners.
• Experience with container builds, Docker or OCI images, artifact repositories, and reproducible builds.
• Strong understanding of Kubernetes-based development or delivery workflows.
• Experience implementing automated tests, security checks, release gates, progressive delivery, and rollback.
• Proficiency in Go and Python for automation, developer tooling, or platform services.
• Strong understanding of software supply-chain security, dependencies, image vulnerabilities, provenance, secrets, and least privilege.
• Demonstrated success leading complex initiatives across multiple teams and driving adoption of shared capabilities.

Responsibilities

• Define the architecture and roadmap for local development, repository tooling, CI/CD, build systems, and release workflows.
• Lead high-impact initiatives across engineering that reduce manual coordination and standardize the path from code change to production.
• Build reusable GitLab CI/CD templates, runner capabilities, developer workflows, test gates, artifact promotion, release manifests, and rollback paths.
• Establish sustainable practices for shared container images, build performance, reproducibility, scanning, signing, provenance, and supply-chain security.
• Improve developer workflow and delivery observability through useful measures of setup time, pipeline health, release performance, and adoption.
• Partner with Platform, Security, QA, and feature teams to make delivery foundations reliable, secure, and easy to consume.

Skills

GitLab CI/CD

Docker/OCI images

Kubernetes workflows

Go

Python

Security awareness

Mentoring engineers

Communication skills

Tools

GitLab Runner

CI/CD templates

DevOps tooling

Job description

Horizon3 is seeking a Staff Developer Experience Engineer to shape how Horizon3 engineers build, test, release, and operate software. You will define architecture for local development, CI/CD, build systems, and release workflows, and lead initiatives across engineering to improve speed, quality, and security.

You’ll mentor engineers, craft reusable tooling and templates, and collaborate with Platform, Security, QA, and Product teams to raise the engineering bar at Horizon3.