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Staff Developer Experience Engineer
Horizon3.ai. Define the architecture and roadmap for local development, repository tooling, CI/CD, build systems, and release workflows .
Tech Stack
Tools & technologiesCyber SecurityDockerKubernetesPythonGo
About the role
Key responsibilities & impact- Define the architecture and roadmap for local development, repository tooling, CI/CD, build systems, and release workflows
- Lead high-impact engineering initiatives 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 using setup-time, pipeline-health, release-performance, and adoption measures
- Partner with Platform, Security, QA, and feature teams to make delivery foundations reliable, secure, and easy to consume
- Establish standards and paved paths for developer workflows, build and release engineering, and approved AI-assisted development
- Design safe agentic-development workflows integrating code review, testing, scanning, permissions, auditability, and Security requirements
- Turn recurring developer friction into reusable tooling, templates, documentation, migration guidance, and runbooks
- Mentor engineers, develop technical owners, and raise the engineering bar across Developer Experience and Horizon3
- Communicate technical decisions and build alignment across Platform, Application Engineering, Data Engineering, Security, QA, Product, and Program Management
- Participate in design reviews, operational reviews, incident response, and continuous improvement
- Establish reliable developer workflows for Horizon3’s NodeZero autonomous penetration-testing cybersecurity platform
Requirements
What you’ll need- 8+ years of experience in Developer Experience, Developer Productivity, Build/Release Engineering, Platform Engineering, SRE, DevOps, or software engineering with substantial tooling and delivery ownership
- 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
- Excellent written and verbal communication skills
- Experience mentoring engineers and influencing technical direction without relying on formal authority
- Internal developer platform, paved-road, service-template, or developer-portal experience preferred
- Shared language/runtime base images, image signing, SBOMs, or provenance-control experience preferred
- GitLab Runner fleets, CI optimization, build caching, or multi-repository release-system experience preferred
- Local Kubernetes, dev containers, Docker Compose, Orbstack, Skaffold, ArgoCD, or GitOps experience preferred
- AI-assisted or agentic engineering workflow experience preferred
- OpenTelemetry, Datadog, pipeline telemetry, or developer-productivity metrics experience preferred
- Security-sensitive, regulated, or cybersecurity experience preferred
- Legally authorized to work in the United States
- Must answer whether employment visa sponsorship will be required
Benefits
Comp & perks- Equity package in the form of stock options for all full-time roles
- Health, vision, and dental insurance for employees and their families
- Flexible vacation policy
- Generous parental leave
- Career development opportunities
- Inclusive and collaborative work culture
- Remote and hybrid work models depending on role and location
- Occasional company onsite meetings and team collaboration