Senior Offensive Security Consultant

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Horizon3.ai

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2019

🔒 Cybersecurity

🤖 Artificial Intelligence

☁️ SaaS

Cybersecurity • Artificial Intelligence • SaaS

Horizon3. ai is a cybersecurity company that specializes in autonomous penetration testing through its platform, NodeZero. The company's mission is to proactively identify and address attack vectors before they can be exploited, allowing organizations to continuously assess their security posture across various environments including cloud, IoT, and on-premises systems. Founded by veterans from the US Special Operations and National Security sectors, Horizon3. ai offers a self-service SaaS solution that provides organizations with insights into their security vulnerabilities without requiring persistent or credentialed agents.

📋 Description

• Lead full-scope penetration testing and red team engagements from scoping through final reporting. • Perform in-depth testing of internal networks, web applications, APIs, cloud environments, and external attack surfaces. • Identify and safely demonstrate business-logic flaws, edge cases, and high-impact attack chains that automated tools often miss. • Review and validate findings from automated platforms, reproducing issues manually where needed. • Deliver high-quality, client-ready reports with clear risk ratings, business impact, and practical remediation guidance. • Collaborate with sales, customer success, and engineering teams to translate findings into product improvements. • Mentor junior consultants and contribute to methodology, tooling, and process enhancements. • Support compliance-driven assessments while maintaining an offensive security mindset.

🎯 Requirements

• 5–10 years of current, hands-on experience in offensive security, red teaming, or penetration testing. • Strong background in web application penetration testing and internal network assessments. • Experience with compliance-focused engagements (PCI DSS, SOC 2, etc.). • U.S. Citizen (required). • Excellent written and verbal communication skills, including the ability to explain complex technical issues to both technical and executive audiences.

🏖️ Benefits

• Fully remote role with flexible scheduling. • Opportunity to work on diverse, meaningful engagements. • Competitive compensation and benefits. • Professional development support (tools, training, conferences).