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Horizon3.ai
Horizon3.ai
51 – 200 Employees
Artificial IntelligenceCybersecuritySaaS
Horizon3.ai is a cybersecurity and artificial intelligence company founded in 2019 that develops autonomous penetration testing software. Its NodeZero platform helps organizations continuously evaluate their security posture by identifying exploitable attack paths across cloud, IoT, and on-premises environments. Designed as a self-service SaaS solution, NodeZero provides vulnerability insights without requiring persistent or credentialed agents. Horizon3.ai was founded by veterans of the US Special Operations and National Security sectors and focuses on helping security teams proactively address weaknesses before attackers can exploit them.
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Staff Developer Experience Engineer at Horizon3.ai — United States Remote

Lead developer experience, CI/CD, build, release, and workflow improvements for Horizon3.ai’s NodeZero autonomous cybersecurity platform. Build secure, reliable delivery foundations that help engineering teams ship effectively.

USUnited States
$199,750 – $270,000 / year
RemoteFull-timeLeadEnglish RequiredDeveloper Relations
Cyber SecurityDockerGoKubernetesPython

Description

  • Own the architecture and roadmap for local development, repository tooling, CI/CD, build systems, and release processes
  • Lead cross-functional engineering initiatives that reduce manual coordination and create a consistent path from code change to production
  • Create reusable GitLab CI/CD templates, runner capabilities, developer workflows, test gates, artifact promotion processes, release manifests, and rollback procedures
  • Develop durable practices for shared container images, build efficiency, reproducibility, scanning, signing, provenance, and software supply-chain security
  • Strengthen developer workflows and delivery visibility through setup-time, pipeline-health, release-performance, and adoption metrics
  • Collaborate with Platform, Security, QA, and feature teams to make delivery foundations dependable, secure, and straightforward to use
  • Set standards and paved paths for developer workflows, build and release engineering, and approved AI-assisted development
  • Design secure agentic-development workflows that incorporate code review, testing, scanning, permissions, auditability, and Security requirements
  • Convert recurring developer pain points into reusable tools, templates, documentation, migration guidance, and runbooks
  • Mentor engineers, cultivate technical owners, and elevate engineering practices across Developer Experience and Horizon3
  • Explain technical decisions and align Platform, Application Engineering, Data Engineering, Security, QA, Product, and Program Management stakeholders
  • Contribute to design reviews, operational reviews, incident response, and ongoing improvement efforts
  • Create dependable developer workflows for Horizon3’s NodeZero autonomous penetration-testing cybersecurity platform

Requirements

  • At least 8 years of experience in Developer Experience, Developer Productivity, Build/Release Engineering, Platform Engineering, SRE, DevOps, or software engineering with significant tooling and delivery ownership
  • Extensive experience designing and operating CI/CD systems, ideally with GitLab CI/CD and self-hosted runners
  • Hands-on experience with container builds, Docker or OCI images, artifact repositories, and reproducible build practices
  • Strong knowledge of Kubernetes-based development or delivery workflows
  • Experience implementing automated testing, security checks, release gates, progressive delivery, and rollback mechanisms
  • Proficiency in Go and Python for automation, developer tooling, or platform services
  • Strong knowledge of software supply-chain security, dependencies, image vulnerabilities, provenance, secrets, and least-privilege practices
  • Proven ability to lead complex, multi-team initiatives and drive adoption of shared capabilities
  • Excellent written and verbal communication skills
  • Experience mentoring engineers and shaping technical direction without relying on formal authority
  • Experience with internal developer platforms, paved roads, service templates, or developer portals is preferred
  • Experience with shared language or runtime base images, image signing, SBOMs, or provenance controls is preferred
  • Experience with GitLab Runner fleets, CI optimization, build caching, or multi-repository release systems is preferred
  • Experience with local Kubernetes, dev containers, Docker Compose, Orbstack, Skaffold, ArgoCD, or GitOps is preferred
  • Experience with AI-assisted or agentic engineering workflows is preferred
  • Experience with OpenTelemetry, Datadog, pipeline telemetry, or developer-productivity metrics is preferred
  • Experience in security-sensitive, regulated, or cybersecurity environments is preferred
  • Legally authorized to work in the United States
  • Must indicate whether employment visa sponsorship will be required

Benefits

  • Stock options are included in the equity package for all full-time roles
  • Health, vision, and dental coverage is available for employees and their families
  • Flexible vacation policy
  • Generous parental leave
  • Opportunities for career development
  • Inclusive and collaborative work culture
  • Remote and hybrid work models vary by role and location
  • Occasional company onsite meetings and team collaboration

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