Commercial Sales Engineer

Get to Know Us Horizon3.ai http://Horizon3.ai is a fast-growing cybersecurity company on a mission to help organizations proactively find, fix, and verify exploitable attack vectors before adversaries exploit them. Our flagship platform, NodeZero™, delivers production-safe autonomous pentesting and attacker-centric validation across internal, external, cloud, and hybrid environments. We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and cybersecurity practitioners who were tired of ineffective tools, alert fatigue, blind spots, and “checkbox security.” We operate with a culture of respect, collaboration, ownership, and results, and we’re looking for sellers who thrive in fast-moving, high-growth environments. We’re looking for an ambitious Commercial Sales Engineer who is early in their career and excited to learn quickly, work with cutting-edge technology, and make an impact in a customer-facing role. This is a great opportunity to accelerate your career while helping growing organizations modernize their security programs. WHY THIS ROLE IS EXCITING - Work with Cutting-Edge Technology – Gain hands-on experience with NodeZero, an autonomous pentesting platform changing the cybersecurity landscape. - Learn from Industry Experts – Partner with experienced Account Executives, Sales Engineers, Customer Success leaders, and security professionals who will invest in your growth. - Fast Career Growth – Build the technical, business, and customer-facing skills that can quickly accelerate your Sales Engineering career. - Make Immediate Impact – Help customers solve real security challenges and directly influence revenue growth. - Join a High-Energy Team – Be part of a collaborative, mission-driven company reshaping offensive security. WHAT YOU’LL DO SUPPORT COMMERCIAL SALES GROWTH - Partner closely with Account Executives to drive opportunities across small and mid-sized organizations by supporting discovery, demos, and technical evaluations. LEARN CUSTOMER ENVIRONMENTS - Join customer conversations to understand their infrastructure, security maturity, and business priorities. DELIVER POWERFUL DEMOS & PROOF OF VALUE - Show prospects how NodeZero helps identify real attack paths, validate security controls, and reduce risk. SIMPLIFY COMPLEX SECURITY CONCEPTS - Translate technical capabilities into clear business value for both technical buyers and executive stakeholders. GROW AS A TRUSTED ADVISOR - Develop the confidence to answer customer questions, guide conversations, and help move deals forward. COLLABORATE ACROSS TEAMS - Work with Sales, Product, Marketing, and Customer Success to improve customer experience and share market feedback. CONTINUOUSLY BUILD EXPERTISE - Learn modern cybersecurity concepts, offensive security methodologies, and consultative selling skills from experienced mentors. WHAT YOU’LL BRING - 1–4 years of experience in Sales Engineering, Customer Success, Technical Account Management, or another customer-facing technical role - Strong interest in cybersecurity and desire to build a long-term career in the space - Excellent communication skills with the ability to simplify technical topics - High curiosity, coachability, and eagerness to learn - Ability to thrive in a fast-paced, high-growth environment - Based in Chicago or open to relocating there WHAT SUCCESS LOOKS LIKE - You become a trusted partner to Account Executives and help win new business - You confidently deliver compelling demos and support evaluations - You rapidly grow your technical and commercial skill set - You build strong relationships internally and externally - You establish yourself as a rising Sales Engineer in one of cybersecurity’s most innovative companies Perks of Horizon3.ai - Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive. - Growth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities. - Innovative Culture