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Senior Sales Engineer, France

Horizon3.ai - Remote - Remote - posted 2026-10-23

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Salary: EUR 160,000 - 190,000 / annual

Horizon3 is a fast-growing remote cybersecurity company on a mission to help organizations proactively find, fix, and verify exploitable attack vectors before criminals exploit them. The flagship product, NodeZero, delivers production-safe autonomous pentests and assessment operations that scale across internal, external, cloud, and hybrid cloud environments. NodeZero is used by ITOps/SecOps teams, consulting pentesters, MSSPs, and MSPs across organizations ranging from educational institutions to government agencies and Global 100 enterprises. The company was founded by a fusion of former U.S. Special Operations cyber operators, startup engineers, and cybersecurity practitioners, committed to solving common security problems: ineffective tools, alert fatigue, blind spots, checkbox security culture, skills shortage, and expensive consulting lead times. As Senior Sales Engineer/Solutions Architect, you will be the technical bridge between prospects, clients, and the Horizon3 team. Your responsibilities include: - Demonstrate deep technical knowledge of cybersecurity products and services to the sales team, prospects, and clients - Meet with potential customers to understand their cybersecurity needs, challenges, and infrastructure to ensure solution fit - Deliver live product demonstrations and proof-of-concept engagements tailored to specific customer concerns - Collaborate with sales and product teams to design and refine solutions based on customer feedback - Train the sales team on technical product aspects to enhance their selling effectiveness - Relay field feedback to product and engineering teams to drive continuous improvement - Assist in answering technical sections of RFPs and RFIs - Provide occasional post-sales support to ensure smooth implementation and customer satisfaction This role is fully remote but may require up to 50% travel to be successful. Job-related travel expenses are reviewed and approved by your manager. REQUIREMENTS: - 5+ years of experience as a Pre-Sales Engineer or Solutions Architect in the cybersecurity domain - Strong understanding of cyber threats, risk management, and cybersecurity solutions - Excellent verbal and written communication skills - Demonstrated ability to simplify complex technical topics for non-technical audiences - Highly collaborative with strong sense of initiative - Fluency in English and French (required)

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