Staff Platform Engineer

🕒 September 24

🇺🇸 United States – Remote

💵 $199.8k - $270k / year

⏰ Full Time

🔴 Lead

🏗️ Platform Engineer

👻 Ghost score 20%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Horizon3.ai

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2019

🔒 Cybersecurity

🤖 Artificial Intelligence

☁️ SaaS

Cybersecurity • Artificial Intelligence • SaaS

Horizon3. ai is a cybersecurity company that specializes in autonomous penetration testing through its platform, NodeZero. The company's mission is to proactively identify and address attack vectors before they can be exploited, allowing organizations to continuously assess their security posture across various environments including cloud, IoT, and on-premises systems. Founded by veterans from the US Special Operations and National Security sectors, Horizon3. ai offers a self-service SaaS solution that provides organizations with insights into their security vulnerabilities without requiring persistent or credentialed agents.

📋 Description

• Lead the design and evolution of AWS, Kubernetes/EKS, and shared platform services • Define architecture for infrastructure automation, service delivery, regional capabilities, and ephemeral environments • Build reusable platform capabilities, self-service workflows, and release-safety practices • Evolve infrastructure-as-code and declarative approaches, including Terraform and Crossplane-related capabilities • Improve platform reliability, observability, security, performance, and operability • Participate in on-call and incident response, leading post-incident improvements • Drive high-impact initiatives across multiple teams while balancing reliability, security, cost, developer experience, and delivery speed • Establish platform standards, reduce technical debt, and guide design decisions • Partner with feature teams to turn platform needs into durable solutions • Mentor engineers and raise the technical bar across Engineering • Improve documentation, runbooks, interfaces, and self-service paths • Communicate and build alignment across Platform, Application Engineering, Data Engineering, Product, Program Management, and Security

🎯 Requirements

• 8+ years in platform engineering, infrastructure engineering, SRE, DevOps, or software engineering with substantial production-platform ownership • Deep experience designing and operating cloud platforms, preferably AWS • Strong Kubernetes experience, including production operations, networking, reliability, and troubleshooting • Strong infrastructure-as-code and automation experience with Terraform, Crossplane, or comparable tools • Experience operating CI/CD and delivery infrastructure • Strong understanding of IAM, secrets, networking, ingress, and least privilege • Experience with distributed-systems observability and operational practices • Proficiency in Go and Python for platform services, developer tooling, or automation • Demonstrated success leading complex initiatives across multiple teams • Excellent communication, mentoring, and technical-influence skills • Preferred: multi-region or multi-environment SaaS platform experience • Preferred: internal developer platform, declarative API, or Platform-as-a-Service experience • Preferred: GitLab CI/CD, self-hosted runners, OpenTelemetry, or Datadog experience • Preferred: ephemeral-environment, automated-provisioning, or platform-lifecycle experience • Preferred: security-sensitive, regulated, or cybersecurity experience • Preferred: startup or high-growth company experience • Must be legally authorized to work in the United States • Exact tool matches are less important than strong platform fundamentals, sound judgment, and end-to-end ownership of production systems

🏖️ Benefits

• Equity package in the form of stock options for all full-time roles • Health, vision, and dental insurance for you and your family • Flexible vacation policy • Generous parental leave • Career development opportunities • Inclusive and collaborative culture • Remote and hybrid work models depending on role and location • Occasional company onsite meetings and team collaboration