Senior Backend Engineer (Cybersecurity)

TL;DR

Senior Backend Engineer (Cybersecurity): Building and operating high-scale, low-latency backend services for a real-time cyberfraud defense platform with an accent on distributed systems and high-throughput traffic processing. Focus on designing robust architectures, optimizing performance for tens-of-milliseconds latency, and leveraging AI-driven development workflows to accelerate the engineering lifecycle.

Location: Tel Aviv, Israel (Hybrid)

Company

A cybersecurity firm dedicated to making the internet safer by protecting enterprises from sophisticated bots, fraud, and account abuse through a real-time verification platform.

What you will do

• Design and maintain distributed, high-throughput backend services processing hundreds of thousands of requests per second.
• Own services from architecture and implementation to deployment and reliability, including full-stack instrumentation.
• Implement real-time detection and decisioning flows in collaboration with security researchers and data science teams.
• Operate services in a Kubernetes environment using a modern GitOps stack.
• Leverage AI assistants and agents to accelerate architectural scaffolding, debugging, and testing.
• Contribute to technical design and code reviews to maintain high operational excellence.

Requirements

• 5+ years of experience building backend services with a strong grasp of distributed systems design.
• High proficiency in Go, Java, or Scala with a strong command of concurrency and multithreading.
• Proven experience building and operating production systems in a major cloud provider like GCP.
• Hands-on experience with datastores and messaging systems such as MongoDB, Redis, or Kafka.
• Solid understanding of networking fundamentals, HTTP-based services, and secure API practices.
• Practical experience with monitoring tools like Prometheus and Grafana.

Nice to have

• Experience in security, fraud detection, or risk scoring systems.
• Deep, hands-on experience with Go in production, including performance tuning and profiling.

Culture & Benefits

• Comprehensive total rewards package for personal and professional development.
• Well-being and learning stipends provided.
• Flexible work options and dedicated time off.
• Collaborative environment focused on diversity of thought and solving complex cybersecurity challenges.