On-Prem Backend Engineer

2 days ago

Tel Aviv, Tel Aviv, Israel Zero Networks Full time ₪70,000 - ₪120,000 per year

Zero Networks, an innovative network security solutions provider, is at an exciting time in its history and is growing fast We are looking for a highly skilled and versatile Backend Engineer with deep expertise in network protocols and on-premises deployments to join our development team. As an On-Prem Backend Engineer, you will be responsible for designing, developing, and maintaining the on-prem infrastructure that runs in customer environments, ensuring robustness, security, and performance. You will collaborate closely with cross-functional teams to deliver mission-critical components that interact directly with complex network stacks.

Responsibilities
  • Design, develop, and maintain backend services deployed on-premises within customer networks.
  • Implement and optimize network-centric functionality, including TCP/UDP, TLS, DNS, routing, proxies, and firewalls.
  • Work with Linux server internals (sockets, routing tables, iptables/netfilter, namespaces, eBPF) to support resilient and secure deployments.
  • Ensure smooth installation, upgrade, observability, and troubleshooting of on-prem components.
  • Troubleshoot and resolve issues in real-world customer environments, including debugging complex network problems.
Requirements
  • Bachelor's degree in Computer Science, Software Engineering (or equivalent work experience) – must
  • 5+ years of experience as a software engineer with hands-on production experience with at least 3 years of work involving network-centric services or on-prem deployment. – must
  • Deep understanding of network protocols (TCP/IP, UDP, TLS, DNS, HTTP/S) and networking fundamentals – must
  • Proficiency in at least one programming language (e.g., Go, C++, or C#) and associated frameworks – must
  • Hands-on experience with Linux networking internals (sockets, routing tables, iptables, namespaces) – must
  • Experience deploying and maintaining on-premises software in customer environments – advantage
  • Familiarity with containerization and orchestration (Docker, Kubernetes, Helm) – advantage
  • Strong problem-solving skills and ability to work both independently and as part of a team
  • Excellent communication and interpersonal skills, with the ability to collaborate effectively across teams

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