Senior Engineer, Partner Integrations & Ecosystem

Horizon3.ai; United States; Hybrid; USD 199,000 - 235,000; Full time

Benefits offered by this job

Inclusive Team

Growth Opportunities

Innovative Culture

Hybrid & Remote Work

Competitive Compensation

Job summary

Horizon3 is a remote cybersecurity company hiring a Senior Software Engineer on the Partner Integrations team to design, build, and maintain integrations with security platforms and ITSM tools. You will work on the NodeZero platform, focusing on reliable, scalable integration surfaces, and contribute to the shared framework.

You will write production code, participate in architecture decisions, collaborate with engineers and partner teams, and help solve complex integration challenges under

Qualifications

• Several years of professional software engineering experience, including building and supporting production APIs, integrations, or backend services.
• Proficiency in Go or Python and experience delivering maintainable, well-tested production code.
• Practical understanding of API integration patterns, such as OAuth 2.0 or API keys, webhooks, pagination, rate limiting, retries, idempotency, and schema evolution.
• Experience handling distributed-systems failure modes, including duplicate or delayed events, partial failures, and partner API changes.
• Experience using logs, metrics, alerts, and dashboards to understand and troubleshoot production systems.
• Comfort working in cloud-native or containerized environments, such as AWS and Kubernetes.
• Strong collaboration skills: can work through ambiguity with partners and internal teams, explain technical tradeoffs, and follow through on commitments.
• Interest in improving shared systems and helping other engineers succeed, while remaining hands-on.

Responsibilities

• Design, build, test, and maintain integrations between NodeZero and partner platforms, including security, SIEM, SOAR, and ITSM tools.
• Own assigned integrations end to end—from understanding partner APIs and requirements through implementation, launch, and production support.
• Implement reliable integration patterns for authentication, event delivery, retries, idempotency, pagination, rate limits, schema mapping, and partial failures.
• Contribute improvements to the shared integration framework, testing practices, documentation, and observability.
• Monitor and troubleshoot integrations in production; investigate issues, identify root causes, and deliver fixes that prevent recurrence.
• Collaborate with Product, Engineering, and partner technical teams to clarify requirements, resolve API questions, and communicate risks and progress.
• Participate in design and code reviews, and help teammates improve through knowledge sharing and constructive feedback.

Skills

Go

Python

API integration

Distributed systems

Kubernetes

Logging and observability

Collaboration

Mentoring

Tools

CrowdStrike

Splunk

ServiceNow

Job description

Horizon3 is a remote cybersecurity company hiring a Senior Software Engineer on the Partner Integrations team to design, build, and maintain integrations with security platforms and ITSM tools. You will work on the NodeZero platform, focusing on reliable, scalable integration surfaces, and contribute to the shared framework.

You will write production code, participate in architecture decisions, collaborate with engineers and partner teams, and help solve complex integration challenges under