Sr. Backend Developer

IRONSCALES is redefining email security with an AI-powered platform built to stop phishing and advanced email cyber threats at scale. Our cloud-native solution detects, analyzes, and remediates attacks in real time, helping organizations stay ahead of constantly evolving cyber threats without slowing down their teams. We’re a fast-growing cybersecurity company driven by innovation, ownership, and a passion for solving hard problems. Our team builds cutting-edge technology used by organizations around the world to protect what matters most.

If you love building impactful products, solving complex challenges, and working with smart, driven people in a fast-paced startup environment. IRONSCALES is the place for you. Join us and help shape the future of email security 🚀

We are looking for an exceptional Software Engineer to join our core inspection and detection team. This is a rare opportunity to build core technology at a cybersecurity startup protecting customers worldwide.

Responsibilities:

• Full ownership across the full lifecycle — design, code, tests, performance, and production.
• Build and maintain high-performance, high-scale, low-latency, near-real-time inspection, detection, and mitigation systems.
• Own AI agents end-to-end — from design and coding through testing and production.
• Continuously improve agent tools, capabilities, and reliability.

• 6+ years of backend development, with a strong track record of building robust, scalable products.
• Experience with high-scale, high-performance, near-real-time systems.
• Proficiency with high-throughput reads and writes databases.
• Hands-on experience with AI tools and agents, applied to real coding and daily workflows.
• Experience delivering frequent production changes every day.
• Pragmatic, business-oriented, and a team player.
• Smart and gets things done.