Horizon3.ai · 4 days ago
Senior Engineering Manager, Core Platform
United States
Full-time
Remote
Senior Level
$210K/yr - $260K/yrHorizon3.ai is a fast-growing, remote cybersecurity company focused on enabling organizations to proactively identify and mitigate exploitable attack vectors. The Senior Engineering Manager will lead the Core Platform organization, ensuring the reliability, scalability, and performance of the backend systems that support the NodeZero platform.
Artificial Intelligence (AI)Cyber SecurityEnterprise SoftwareMachine LearningNetwork Security
Responsibilities
Lead our Core Platform organization, a high-impact team that underpins NodeZero’s reliability, scalability, and core backend systems
Drive excellence in backend infrastructure, data pipelines, observability, and API performance
Own and accelerate our platform architecture and infrastructure, enabling engineering teams and on-call responders to deliver, operate, and recover quickly as we scale securely and sustainably
Qualification
Required
Proven experience leading highly technical backend or platform engineering teams — ideally within a SaaS, cybersecurity, or cloud-scale environment
Deep understanding of scalable backend architecture, database optimization, and distributed systems
Experience with data pipelines and ETL systems
Experience with observability tooling and platform monitoring
Strong grasp of cloud infrastructure concepts (AWS, GCP, Azure), DevOps, and resilience engineering principles
Demonstrated success building and managing teams that support core platform reliability and internal developer platforms
Ability to balance technical depth with strategic foresight — looking ahead to align infrastructure investments with business priorities
Excellent communicator and collaborator, comfortable working cross-functionally and aligning diverse stakeholders
Comfortable operating without a dedicated product manager — able to help define direction, set technical priorities, and contribute to roadmapping
Strong background in backend engineering and/or platform engineering, with deep experience in designing, scaling, and maintaining distributed systems
Expertise in at least one object-oriented programming language (Python strongly preferred; open to Go, Java, C++, or similar)
Familiarity with ETL pipelines, data flow orchestration, and database performance optimization (PostgreSQL, Neo4j, or equivalent)
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 (Prometheus, Grafana, OpenTelemetry, etc.)
Understanding of security and reliability best practices, especially in a multi-tenant SaaS or cybersecurity environment
Knowledge of Linux-based systems (Ubuntu, Kali, etc.) and modern development practices for distributed environments
Preferred
Bachelor's or Master's degree preferred
Benefits
Health, vision & dental insurance for you and your family
Flexible vacation policy
Generous parental leave
Company
Horizon3.ai
Horizon3.ai offers an autonomous penetration testing platform that helps organizations proactively find and fix security vulnerabilities.
Founded in 2019
201-500 employees
Funding
Current Stage
Late StageTotal Funding
$178.5MKey Investors
New Enterprise AssociatesCraft VenturesSignalFire
2025-05-22Series D· $100M
2023-08-08Series C· $40M
2021-10-29Series B· $30M
Leadership Team
Snehal Antani
Co-Founder & CEO
Holly Grey
Chief Financial Officer
Recent News
2025-12-16
Company data provided by crunchbase