[Remote] Federal Sales Engineer, DoW

November 6, 2026

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Note: The job is a remote job and is open to candidates in USA. Horizon3.ai is a remote cybersecurity company focused on helping organizations identify, fix, and verify exploitable attack vectors through its NodeZero platform. The Federal Sales Engineer will support the federal sales team by providing technical expertise, customer engagement, product demonstrations, solution development, training, RFP/RFI assistance, and occasional post-sales support for cybersecurity solutions.

Responsibilities

Technical expertise - Must demonstrate deep knowledge of our cybersecurity products and services, assisting the sales team in presenting and position them to prospects and clients
Customer engagement - Must meet with potential customers to understand their cybersecurity needs, challenges, and infrastructure, ensuring that our solutions are the perfect fit for them
Product demonstrations - Provide live demos and proof of concepts for our cybersecurity solutions, tailoring each demo to the specific needs and concerns of the potential customer
Solution development - Will work closely with the sales and product teams to design and refine our solutions based on customer needs
Technical training - train the sales team on the technical aspects of our products to enhance their ability to sell more effectively
Feedback loop - relay feedback from the field to our product and engineering teams, contributing to the ongoing improvement of our product
RFP/RFI assistance - Assist in answering technical sections of RFPs and RFIs
Post-sales support - On rare occasions, assist in post-sales processes to ensure the smooth implementation and satisfaction of our customers

Skills

• 5+ years of experience as a Pre-Sales Engineer/Solutions Architect, ideally in the cybersecurity domain
• Experience with DoW Offensive Cyber Operations
• US Federal Clearance (\•Must be able to obtain the required Security Clearance and potential granting access to classified information systems)
• Familiarity with managed services delivery models, SOC workflows, SIEM, SOAR, EDR, PTaaS and MDR
• Proficiency with cloud (AWS, Azure, GCP), identity systems (AD/AAD), and networking fundamentals
• Strong understanding of cyber threats, risk management, and cybersecurity solutions
• Excellent verbal and written communication skills
• Demonstrates ability to simplify complex technical topics for a non-technical audience
• Highly collaborative with a strong sense of initiative
• Bachelor's degree in Computer Science, Cybersecurity, Information Technology, •or equivalent experience.•
Federal Travel Required
The desired location is Washington DC, but we are a fully remote company, and this job may require up to 50% of travel to be successful in the region
Travel will include CONOS & OCONOS as required
• Certifications such as OSCP, OSCE, CISSP, CEH, CompTIA Security+, or cloud security certifications are desirable

Benefits

Be part of a dynamic and growing team with numerous career development opportunities.
Work in a collaborative environment that encourages creativity and out-of-the-box thinking.
We embrace a mix of remote and hybrid work models depending on role and location, including our Chicago office, where some roles require regular in-office presence.
Health, vision & dental insurance for you and your family.
A flexible vacation policy.
Generous parental leave.
All full-time roles are eligible for an equity package in the form of stock options.

Company Overview

Horizon3.ai offers an autonomous penetration testing platform that helps organizations proactively find and fix security vulnerabilities. It was founded in 2019, and is headquartered in San Francisco, California, USA, with a workforce of 501-1000 employees. Its website is

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