Senior Engineering Manager, Horizon3
Precision Defense
$210-260k
More information about location
Autonomous security solutions
Job no longer available
Autonomous security solutions
201-500 employees
Job no longer available
$210-260k
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
- Proven experience leading multiple backend/platform or detection/defense teams, or an engineering org, in a SaaS, cybersecurity, or cloud-scale environment
- Track record of taking products from concept to market — including POCs, MVPs, launches, and iterative improvements — in partnership with Product and GTM
- Comfort operating in an environment with limited dedicated PM capacity, including helping define direction, shaping roadmaps, and setting technical priorities
- Demonstrated ability to manage concurrent initiatives and balance short-term delivery with longer-term platform and product investments
- Highly technical background with expertise in software development and B2B SaaS multi-product platforms
- Deep understanding of scalable backend architecture, data modeling, databases, and distributed systems
- Experience with data pipelines and ETL systems, including performance, reliability, and observability considerations
- Strong grasp of cloud infrastructure concepts (AWS, GCP, or Azure), DevOps, and resilience engineering
- Familiarity with modern detection and response concepts, including EDR, SIEM, threat detection rules, and detection engineering best practices
- Experience or strong interest in offense-informed defense approaches that combine exploitability, attacker behavior, and high-fidelity detections (e.g., tripwires, deception, targeted alerts)
- Comfort collaborating with offensive security, detection/defense, or security operations teams and translating attack paths into practical defensive controls
- Excellent written and verbal communication skills; able to explain complex technical and risk concepts to both engineers and non-technical stakeholders
- Experience working cross-functionally with designers, developers, product managers, customer teams, and GTM
- Strong documentation habits and a bias toward clarity, transparency, and alignment
- Creative, self-motivated, highly energetic, detail- and results-oriented
- “Learn-it-all” attitude, with curiosity about both offensive and defensive security domains
- Strong ability to identify procedural and architectural gaps, implement best practices, and empower teams to ship high-quality features at high velocity
- Bachelor’s and/or Master’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience
- Extensive experience in technical leadership and architectural decision-making for complex systems
- Exposure to cybersecurity industry standards, trends, and common attacker and defender techniques is a plus
- Strong background in backend and/or platform engineering, with deep experience designing, scaling, and maintaining distributed systems
- Expertise in at least one modern programming language (Python strongly preferred; Go, Java, C++, or similar also relevant)
- Familiarity with ETL pipelines, data flow orchestration, and database performance optimization (e.g., PostgreSQL, Neo4j, or equivalent)
- Experience working with analytics- or graph-heavy workloads, especially where relationships between assets, identities, alerts, and vulnerabilities matter
- Solid understanding of cloud infrastructure and services (AWS, Azure, or GCP), including networking, compute, and storage fundamentals
- Exposure to infrastructure-as-code and deployment concepts (e.g., Terraform, Docker, Kubernetes, CI/CD tooling)
- Experience with observability and monitoring stacks (e.g., Prometheus, Grafana, Datadog, OpenTelemetry)
- Understanding of security and reliability best practices in a multi-tenant SaaS or cybersecurity environment
- Knowledge of Linux-based systems (e.g., Ubuntu, Kali) and modern development practices for distributed services
What the job involves
- We’re looking for a Senior Engineering Manager to lead our Precision Defense engineering teams — the set of teams that turn NodeZero’s offensive insights into autonomous, high-signal defenses across tripwires, rapid response, and security control validation
- This is a manager-of-managers role with significant product ownership. You’ll own and scale the engineering teams behind NodeZero’s Precision Defense capabilities, including:
- Tripwires – building and evolving honeypots, honeytokens, and other deception capabilities that detect real attacker behavior in production environments and provide a high-fidelity last line of defense
- Rapid Response – codifying emerging zero-day and n-day threats into tests, targeted checks, and content that proactively alerts customers when they’re exposed and guides fast mitigation
- Endpoint, Identity, and Data Security – validating and improving endpoint detection and response (EDR), identity security, and data protection controls using attacker-validated evidence from NodeZero
- Detection & Telemetry Integrations – integrating with SIEM/EDR/ITSM and other detection/control surfaces so NodeZero outputs can tune rules, close gaps, and continuously validate that defenses are working
- You’ll build and lead an organization that closes the loop between offense and defense: using NodeZero’s attack paths and exploit evidence to drive precise detections, tripwires, and control validation so customers can detect attackers earlier, harden critical assets, and prove that their defenses actually work in production
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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