Position Title: Linux Network & Security Infrastructure Engineer
Experience: 3– 6+ years
Location: Malaysia
Employment Type: 1-2 years contract with ATS ( Based on performance Might be permanent)
Job Summary
We are looking for a Linux Network & Security Infrastructure Engineer to build, secure, and operate next-generation Linux systems and network environments. You will combine declarative/immutable OS administration (NixOS/RHEL/Guix) with advanced stateful firewalling (nftables, Cisco/Forti/Palo Alto), cloud-native networking (Cilium), and threat detection (Suricata, Zeek) to maintain robust network zoning and defense-in-depth infrastructure.
Key Responsibilities
Immutable OS & Linux Engineering: Build, automate, and manage declarative, reproducible Linux systems using NixOS, Guix, or immutable RHEL environments.
Firewalling & Network Zoning: Implement stateful packet filtering, NAT, and network zoning using nftables alongside enterprise firewalls (Fortinet, Palo Alto, Cisco, Check Point).
Network Infrastructure & L2/L3:



Deploy and troubleshoot Routing & Switching (L2/L3, VLANs, BGP/OSPF, TAP/SPAN configurations).
NIDS & Network Security: Deploy, tune, and maintain Suricata rule sets and Zeek network analysis tools for real-time monitoring and threat hunting.
Cloud-Native Networking: Implement and manage container networking, eBPF policy enforcement, and observability using Cilium.
Key Requirements
Experience: 3–6 years in Linux Systems, Network Security, or Infrastructure Engineering.
Linux & Immutable OS: Solid Linux internals; hands-on experience with NixOS, Nix Flakes, Guix, or immutable distributions.
Firewall & Security Stack: Proficient in nftables, enterprise firewalls (Fortigate/Palo Alto/Cisco), network zoning, and stateful inspection.
NIDS & Observability: Hands-on experience operating Zeek and Suricata.
Advanced Networking: Solid understanding of L2/L3 Routing & Switching and Cilium (eBPF).

📌 linux Engineer (India)
🏢 Asian Technology Solutions Sdn Bhd
📍 India