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Salary: USD 148,750 - 190,000 / annual
Horizon3.ai is a fast-growing remote cybersecurity company that enables organizations to proactively find, fix, and verify exploitable attack vectors before criminals exploit them. The flagship product, NodeZero, delivers production-safe autonomous pentests and assessment operations that scale across internal, external, cloud, and hybrid cloud environments. The company is built by former U.S. Special Operations cyber operators, startup engineers, and cybersecurity practitioners.
The Software Engineer on the Integrations Delivery & Support team builds and maintains first-party integrations that connect NodeZero to the security tools customers already use. When NodeZero completes a pentest, it produces a rich set of findings; this role ensures those findings flow automatically into platforms like CrowdStrike, SentinelOne, Splunk, ServiceNow, and others, so customers can act on results without context switching.
The team owns the full lifecycle of each integration: design, delivery, customer enablement, and ongoing support. You will ship integrations that are reliable, observable, and well-documented enough that customers can configure them without support calls. This role reports to the IDS Engineering Manager and works alongside a senior engineer.
Key responsibilities include:
- Build and ship first-party integration connectors between NodeZero and customer security platforms (EDR, SIEM, SOAR, ITSM)
- Design integration schemas and data mappings that translate NodeZero finding structures into each platform's native format
- Maintain and evolve existing integrations as third-party APIs change, customer feedback surfaces gaps, and new platforms are prioritized
- Write integration documentation and configuration guides that enable customers to self-serve without support calls
- Diagnose and resolve integration failures reported by customers or caught by monitoring
- Work with the Integrations Platform team to ensure connectors are built on shared infrastructure
The role is fully remote with up to 5% travel required. Horizon3 offers competitive compensation, equity packages, health/vision/dental insurance, flexible vacation, and generous parental leave.
REQUIREMENTS:
- 2+ years of professional software engineering experience, with at least 1 year building production integrations or connectors against third-party APIs
- Experience consuming REST or GraphQL APIs and handling real-world challenges: auth token refresh, pagination, rate limiting, partial failure, schema drift
- Ability to read and understand third-party API documentation and translate it into a reliable, tested connector
- Proficiency in Go or Python (team's primary languages)
- Comfort working in containerized and cloud-native environments (Docker, Kubernetes, AWS)
- Understanding of webhook and event-driven integration patterns
- Product sense: think about the person configuring your integration with clear error messages, sane defaults, and useful logs
- Ability to read customer bug reports and turn them into concrete root causes
NICE TO HAVES:
- Hands-on experience with CrowdStrike Falcon, SentinelOne, Splunk, ServiceNow, Jira, or similar security and ITSM tools
- Familiarity with the cybersecurity ecosystem (EDR, SIEM, SOAR concepts)
- Experience designing integration data models or field-mapping schemas
- Background in customer-facing or product-adjacent engineering roles where reliability directly impacted user experience
