Staff Software Engineer, OTA Services

🕒 4 days ago

🇺🇸 United States – Remote

💵 $229.5k - $260k / year

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack 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

• Design and own NodeZero’s over-the-air update system, including delivery protocol, version negotiation, rollout orchestration, health verification, and automatic rollback • Own systems tracking the version state of every NodeZero deployment • Design phased rollouts, canary deployments, customer pinning, and emergency hold mechanisms • Design reliable delivery mechanisms for air-gapped networks, strict egress policies, and minimal-footprint deployments • Own OTA system reliability end-to-end and participate in on-call for delivery failures, stuck updates, and version drift incidents • Write production code and produce architecture designs • Set technical direction for update delivery and version management • Mentor P4 engineers through design review, code review, and technical pairing • Partner closely with the Image Build & Release team • Report to the Client Platform Engineering Manager

🎯 Requirements

• 8+ years of professional software engineering experience with deep specialization in distributed systems, remote update systems, or fleet management infrastructure • Deep understanding of remote update system design, including delivery protocols, version negotiation, delta delivery, health verification, and rollback semantics • Experience designing rollout strategies for software deployed across heterogeneous, customer-managed environments • Strong proficiency in Go, Python, or Rust • Experience building software for constrained or air-gapped environments • Deep understanding of Kubernetes • Experience with container image distribution, including OCI artifacts, image manifests, layer caching, and registry protocol • Strong understanding of mTLS, certificate lifecycle, and secure channel establishment • Track record of setting engineering standards adopted by other engineers • Ability to produce architecture documents and drive technical decisions across team boundaries • Experience mentoring mid-level engineers through design and code review • Minimum 25Mbps consumer-grade broadband connection • Legally authorized to work in the United States • Nice to have: Kubernetes operators or controller patterns • Nice to have: cybersecurity or regulated/high-security environment experience • Nice to have: Fleet or similar open-source fleet management tools • Nice to have: signed artifact delivery and end-to-end chain-of-custody verification

🏖️ Benefits

• Equity package in the form of stock options may be available • Health, vision, and dental care for employees and their families • Flexible vacation policy • Generous parental leave • Remote work in a 100% remote company • Career development opportunities • Inclusive and collaborative culture • Up to 5% travel may be required