Staff Developer Experience Engineer, Horizon3
Developer Experience
$199.8-270k
All full-time roles are eligible for an equity package in the form of stock options
More information about location
Autonomous security solutions
Be an early applicant
Autonomous security solutions
201-500 employees
Be an early applicant
$199.8-270k
All full-time roles are eligible for an equity package in the form of stock options
More information about location
201-500 employees
Company mission
To help find and fix attack vectors before attackers can exploit them.
Role
Who you are
- 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
- Exact tool matches are less important than strong software-engineering fundamentals, platform judgment, empathy for developers, and a track record of improving delivery systems at scale
Desirable
- Internal developer platform, paved-road, service-template, or developer-portal experience
- Shared language/runtime base images, image signing, SBOMs, or provenance-control experience
- GitLab Runner fleets, CI optimization, build caching, or multi-repository release-system experience
- Local Kubernetes, dev containers, Docker Compose, Orbstack, Skaffold, ArgoCD, or GitOps experience
- AI-assisted or agentic engineering workflow experience
- OpenTelemetry, Datadog, pipeline telemetry, or developer-productivity metrics experience
- Security-sensitive, regulated, or cybersecurity experience
What the job involves
- We are looking for a Senior OR Staff Developer Experience Engineer to help shape how Horizon3 engineers build, test, release, and operate software
- The Developer Experience team owns the foundations connecting local development to production delivery: developer tooling, CI/CD, build systems, container base images, artifact promotion, release gates, and approved agentic-development workflows. You will define technical direction, lead complex initiatives across engineering, and build reusable paths that improve delivery speed, quality, security, and confidence
- This is a hands-on technical leadership role for an engineer who enjoys solving ambiguous problems, influencing across teams, and making the software lifecycle easier to use and operate
- 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
- Establish standards and paved paths for developer workflows, build and release engineering, and approved AI-assisted development
- Design safe agentic-development workflows that integrate with code review, testing, scanning, permissions, auditability, and Security requirements
- Turn repeated 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 complex technical decisions clearly 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
- Our Developer Experience Stack:
- GitLab, GitLab CI/CD, and private runner fleets
- Shared CI/CD templates and pipeline management
- Docker/OCI images, artifact repositories, and shared base images
- Kubernetes, EKS, Helm, Skaffold, and ArgoCD
- AWS and cloud-native development environments
- Go, Python, TypeScript, shell scripting, and repository tooling
- OpenTelemetry, Datadog, and pipeline/deployment observability
- Approved AI coding tools, including Claude Code for approved engineering use cases
- What Success Looks Like:
- Engineering teams adopt clear, reliable paved paths from local development through production
- Shared CI/CD, build, and release capabilities reduce friction and manual coordination
- The same validated artifact or commit moves predictably through environments
- Base images, build components, and delivery workflows are secure, current, traceable, and easy to consume
- Approved AI-assisted workflows improve productivity without bypassing review, testing, or security
- Developer Experience has clear standards, strong adoption, measurable outcomes, and multiple technical owners
- You are trusted across Engineering to lead difficult developer-workflow and delivery decisions
Our take
In an era marked by escalating cyber threats and data breaches, safeguarding digital assets has become a high priority across all industries. Amid this landscape, Horizon3.ai stands out as an autonomous security solution by addressing the critical need for robust cybersecurity.
At the heart of Horizon3.ai's mission is NodeZero™, a platform designed to elevate proactive security measures. Using this, customers can verify their security posture and identify potential vulnerabilities through self-service. This proactive approach to cybersecurity effectively thwarts potential exploits and ensures the integrity of their digital infrastructure.
With 2025 funding in hand, the company is poised to further its ambition to develop into an industry-leading cybersecurity company. The infusion of funds will be channelled towards expanding its partner network, refining its offerings and entering the US government market. Horizon3 aims to establish itself as a pivotal player in the evolving autonomous security landscape, a highly lucrative market valued at $80 billion.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
-8% employee growth in 12 months
Company
Funding (last 2 of 6 rounds)
Jun 2025
$100m
SERIES D
Aug 2023
$40m
SERIES C
Total funding: $187m
Company benefits
- Growth Opportunities: Be part of a dynamic and growing team with numerous career advancement opportunities
- Innovation-Driven Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking
- Flexible Work Environment: Enjoy the convenience and work-life balance that comes with remote work
- Inclusive and Diverse Team: We value diversity and promote an inclusive culture where everyone can thrive
Company HQ
SoMa, San Francisco, CA
Leadership
Snehal Antani
(Co-Founder & CEO)Graduated from the Rensselaer Polytechnic Institute with an MS in Computer Science. Previously worked at IBM as a Lead Architect, at GE Capital as the CIO of Distribution Finance and Splunk as the SVP & GM of Business Analytics & IoT.
Anthony Pillitiere
(Co-Founder)Graduated from the University of Maryland with a Bachelor's Degree in Computer Systems Networking and Telecommunications. Previously worked at the United States Air Force in multiple roles, including Deputy Chief Technology Officer.
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