Horizon3.ai

1 day ago

Staff Technical Support Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 1 hour agoStatus: Live

Job Summary

Serve as a senior technical authority for enterprise customers, resolving the most complex cloud, networking, and security issues. Lead root-cause analysis for recurring problems and partner with engineering and product to drive long-term reliability improvements. Own escalation processes, SLA frameworks, and customer environment architecture reviews, including infrastructure as code and containerized cloud-native patterns. Mentor support engineers and continuously improve tooling and knowledge to elevate customer outcomes.

Location: United States

Workplace: Remote

Employment Type: Full time

Job Function: Customer Support (Service Desk)

Seniority: Mid level

Key Responsibilities

•Serve as the ultimate escalation point and resolve the most critical, complex issues across cloud, networking, and infrastructure.
•Drive root-cause analysis for systemic and recurring problems and influence upstream engineering/product fixes.
•Lead cross-functional efforts to address complex technical challenges and establish scalable documentation and knowledge frameworks.
•Own and review customer environment architecture designs, including best practices for infrastructure as code and cloud-native patterns.
•Define support processes and SLA/escalation paths, mentor team members, and introduce tools and practices to improve support effectiveness.

Travel: Low travel

Pay and Benefits

Salary: USD 117,000 - 145,000 annually

Perks:Health InsuranceVisionDentalParental Leave

Key Requirements

•8+ years of experience in technical support, systems administration, or cloud operations, supporting large-scale enterprise B2B deployments.
•Proficiency in Linux administration, including performance tuning and security hardening.
•Hands-on containerization experience with Docker and Kubernetes (or equivalent), including operations at scale.
•Advanced knowledge of cloud platforms (AWS, Azure, or GCP) and Infrastructure as Code tools such as Terraform, Ansible, or CloudFormation.
•Expert networking and troubleshooting skills (TCP/IP, BGP, VPNs, load balancers) plus observability (e.g., Datadog) and scripting/automation in Bash and Python.

Experience:8+ yearsCybersecurityEnterprise B2BCloud operationsContainerizationIncident response

Education:Bachelor's

Skills:Root cause analysisCross-functional collaborationDocumentationIncident responseMentoring

Certifications:AWS Solutions Architect ProfessionalCKACKADRHCE

Tech Stack:LinuxDockerKubernetesAWSAzureGCPTerraformAnsibleCloudFormationTCP/IPBGPFirewallsVPNsLoad balancersWiresharkTcpdumpRESTGraphQLOAuthSAML

Company Brief

Horizon3.ai

Builds NodeZero®, an autonomous penetration-testing platform that continuously finds, prioritizes, and verifies exploitable vulnerabilities across on-premises, cloud, and hybrid environments to help organizations reduce security risk.

Industry: Cybersecurity

Company Size: Large (251 to 1,000 employees)

Growth: Scaleup

Funding: Series D

Headquarters: San Francisco, United States

Founded: 2019

Glassdoor: 4.9

Website LinkedIn Glassdoor

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Horizon3.ai

1 day ago

Staff Technical Support Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 1 hour agoStatus: Live

Job Summary

Location: United States

Workplace: Remote

Employment Type: Full time

Job Function: Customer Support (Service Desk)

Seniority: Mid level

Key Responsibilities

•Serve as the ultimate escalation point and resolve the most critical, complex issues across cloud, networking, and infrastructure.
•Drive root-cause analysis for systemic and recurring problems and influence upstream engineering/product fixes.
•Lead cross-functional efforts to address complex technical challenges and establish scalable documentation and knowledge frameworks.
•Own and review customer environment architecture designs, including best practices for infrastructure as code and cloud-native patterns.
•Define support processes and SLA/escalation paths, mentor team members, and introduce tools and practices to improve support effectiveness.

Travel: Low travel

Pay and Benefits

Salary: USD 117,000 - 145,000 annually

Perks:Health InsuranceVisionDentalParental Leave

Key Requirements

•8+ years of experience in technical support, systems administration, or cloud operations, supporting large-scale enterprise B2B deployments.
•Proficiency in Linux administration, including performance tuning and security hardening.
•Hands-on containerization experience with Docker and Kubernetes (or equivalent), including operations at scale.
•Advanced knowledge of cloud platforms (AWS, Azure, or GCP) and Infrastructure as Code tools such as Terraform, Ansible, or CloudFormation.
•Expert networking and troubleshooting skills (TCP/IP, BGP, VPNs, load balancers) plus observability (e.g., Datadog) and scripting/automation in Bash and Python.

Experience:8+ yearsCybersecurityEnterprise B2BCloud operationsContainerizationIncident response

Education:Bachelor's

Skills:Root cause analysisCross-functional collaborationDocumentationIncident responseMentoring

Certifications:AWS Solutions Architect ProfessionalCKACKADRHCE

Tech Stack:LinuxDockerKubernetesAWSAzureGCPTerraformAnsibleCloudFormationTCP/IPBGPFirewallsVPNsLoad balancersWiresharkTcpdumpRESTGraphQLOAuthSAML

Company Brief

Horizon3.ai

Industry: Cybersecurity

Company Size: Large (251 to 1,000 employees)

Growth: Scaleup

Funding: Series D

Headquarters: San Francisco, United States

Founded: 2019

Glassdoor: 4.9

Website LinkedIn Glassdoor