- Lead architectural decisions for scalable backend systems that balance velocity, reliability, maintainability, extensibility, and operability.
- Drive execution across multiple concurrent projects and initiatives, identifying risks, dependencies, and tradeoffs early and helping the team sequence work effectively.
- Mentor and develop engineers on the team by providing thoughtful feedback, technical coaching, and frameworks that help others do the best work of their careers.
Requirements
Get to Know Us Horizon3.ai http://Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, fix and verify exploitable attack vectors before criminals exploit them.
The right candidate will be equally comfortable translating ambiguous product goals into concrete technical roadmaps, writing production code (primarily backend but with an understanding for frontend as well), mentoring other engineers, and influencing decisions across multiple projects and partner teams.
experience as a senior individual contributor or technical lead, with a track record of leading through influence rather than formal management authority.
Experience working across multiple projects or workstreams at the same time while maintaining clarity on priorities, risks, and execution sequencing.
- Proven ability to work effectively with cross-functional partners including Product, Design, Security, peer engineering teams, and senior leadership.
- Strong written and verbal communication skills, including the ability to explain technical decisions and tradeoffs to non-technical stakeholders.
Experience - Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience. - 10+ years of professional software engineering experience. -
Experience building backend services using at least one modern language, such as Python, Go, Java, TypeScript, or similar. -
Experience working with SQL and at least one relational database in production. -
Experience building backend services on a cloud platform (AWS, GCP, or Azure), and familiarity with Docker and containerized applications. Preferred Education/
experience in some of the following will help you be successful quickly: -
Experience with PostgreSQL and performance tuning for large datasets. -
Experience with graph databases such as Neo4j or interest in learning them. -
Experience building or consuming GraphQL backends. -
Experience with ETL pipelines and data processing tools (e.g., Airflow-like frameworks, custom ETL jobs, or similar).. -
Experience with observability stacks (e.g., Datadog, Prometheus, Grafana) and instrumentation of services. -
Experience in cybersecurity, vulnerability management, security analytics, security data platforms, or adjacent domains Required Tech Stack
Experience - Backend development in one or more of: Go, Rust, Python, Java, or similar - Designing and operating APIs, services, and asynchronous or event-driven systems - Data modeling and persistence layers for product-grade backend systems - Cloud-native application development and deployment patterns - Observability, reliability, and operational best practices for production services - Technical design documents, architectural proposals, and engineering standards that can be adopted by other teams.
Experience building products or platforms in vulnerability management, exposure management, security telemetry, or related cybersecurity domains - Familiarity with risk scoring, prioritization systems, or data-intensive backend workflows -
Experience partnering closely with product managers to define and sequence an MVP without painting the team into a corner. -
Experience helping define technical standards or practices adopted beyond your immediate team. - A track record of shaping technical direction more broadly across an organization, with influence extending beyond a single team or domain.
Perks of Horizon3.ai http://Horizon3.ai - Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive.
Benefits
What You’ll Be Responsible For - Own the end-to-end technical vision for the RBVM and its supporting services, from initial concept through implementation, iteration, and long-term evolution.
Compensation and Values At Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value.
Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations.
In accordance with various State’s transparency regulations, we provide the following salary range information for this position: - Base salary range: $213,000 - $273,000.
The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills. - Additional compensation: All full-time roles are eligible for an equity package in the form of stock options.
- Competitive Compensation: We offer competitive salary, equity and benefits. Our
benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave.
You Belong Here Horizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success.
Additional details
Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments.
NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises.
It is used by IT Ops/SecOps teams, consulting pentesters, and MSSPs and MSPs.
Special Operations cyber operators, startup engineers & operators, and formerly frustrated cybersecurity practitioners.
We're committed to helping solve our common security problems: ineffective security tools and false positives, resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants.
Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.
You’ll be responsible for shaping the systems, architecture, and technical direction behind a product that helps customers understand and prioritize what matters most to secure their environments.
This role is for a senior individual contributor who leads through technical judgment, cross-functional partnership, and execution.
Successful candidates will be product minded engineers with an obsession for the details and customer outcomes.
In the short-term this role will split time 50/50 between hands-on coding and architectural design.