Horizon3AI
Staff Software Engineer, Firewall
$225K–$265K
US, Remote · Remote · Staff · Full-time · Posted Oct 30, 2026
- Experience
- 8+ years leading technical work at Staff, Lead, or comparable scope, including architecture, implementation, and cross-team influence.
About the job
Leads the Firewall workstream and builds integrations that help NodeZero assess Web Application Firewall coverage and provide safe, verifiable remediation guidance.
What you'll do
- Set technical direction and deliver the WAF workstream, from design through production operation and iteration.
- Build reliable integrations and resilient workflows, with correctness checks, observability, and safety controls for changes affecting live traffic.
- Contribute production code, lead design and code reviews, mentor engineers, and coordinate with Product and technical teams.
What they ask for
- Expert-level proficiency in large-scale Python software development.
- Working knowledge of WAF platforms and policy models, including rules, managed rule groups, and vendor-specific behavior.
- Proficiency in Go, Rust, or a comparable modern backend language.
- Experience designing service-oriented systems, APIs, or integrations, including failure and partial completion.
Nice to have
- Experience in adjacent security areas, vendor-varied security or infrastructure integrations, or building products for control coverage, attack-path validation, or remediation guidance.
- Familiarity with cloud environments, containerization, operating services at scale, or safe automation affecting customer environments.
Pay
$225,000 - $265,000 annually (base salary)
Tools
Python, AWS WAF, Cloudflare, F5, Imperva, FortiWeb, ModSecurity/OWASP CRS, Go
AI focus
Collaborates with AI research or applied research teams to turn domain expertise into customer-facing software; no specific AI development responsibilities are stated.
Model-written summary · the original posting is authoritative