Staff Technical Support Engineer (Web App)

The role

You will investigate complex failures across the entire stack and act as a technical bridge between customers and engineering. You will build automation tools, drive systemic product improvements, and mentor the technical team.

What you will do

• Investigate complex failures across the entire stack
• Translate customer-reported symptoms into actionable bug reports
• Verify engineering fixes in customer environments
• Build tooling and automation using Python scripts and internal dashboards
• Automate data collection from Zendesk and Jira
• Create runbooks to increase team effectiveness
• Identify product gaps, documentation holes, or infrastructure reliability issues
• Explain web application security findings to customers
• Mentor junior and senior engineers
• Establish patterns for complex investigations

Required qualifications

• 8+ years of hands-on technical experience
• Strong Linux fundamentals
• Container and Kubernetes experience
• Cloud platform experience (AWS, Azure, or GCP)
• GraphQL and web application fluency
• Database fundamentals
• Scripting ability in Python and Bash
• Observability tool experience
• Strong communication skills

Nice to have

• Background in cybersecurity, pentesting, or AppSec
• Experience with web application security
• Active Directory experience
• Full-stack development experience
• Deep graph database experience (Neo4j or similar)
• Certifications (AWS SA Pro, CKA, RHCE, OSCP, or similar)
• Experience in regulated environments (SOC 2, FedRAMP, GDPR)

Benefits

• Equity package in the form of stock options
• Health, vision & dental insurance for you and your family
• Flexible vacation policy
• Generous parental leave

About the company

Horizon3 is a remote cybersecurity company dedicated to enabling organizations to proactively find and fix exploitable attack vectors. Their flagship product, NodeZero, delivers autonomous pentests across various cloud environments.