Senior Backend Engineer, Precision Defense is open at Horizon3ai in US, Remote. The posting gives no salary; similar roles in the United States advertise a median of $193K. Posted on Aug 27, 2026, and still on Horizon3ai’s careers page when we last checked, on Nov 14, 2026.
About the role
As a Senior Backend Engineer on the Precision Defense team, you'll help build the systems that move our customers from reactive security toward proactive, evidence-based defense. The team operates across three closely related areas — Rapid Response, Tripwires/Deception, Security Controls/EDR, and Autonomous Defense — and you'll contribute to backend infrastructure that spans all of them. Depending on where you land…
The opening lines of the posting. The rest is on Horizon3ai’s careers page.
Hiring at Horizon3ai
Horizon3ai has 200 open roles right now, 152 of them remote. Most are in Engineering, Sales & Business Development and Marketing & Community. The median advertised salary across its roles with a published range is $230K. See all its roles
