Full-Stack Infrastructure Engineer

Red Alpha Cybersecurity

📍 Singapore, SG.01, Singapore

Full-time Other-General Posted February 25, 2026

Job Description

Red Alpha Cybersecurity is hiring Full-Stack Infrastructure Engineers who are eager to design, implement, and maintain robust and secure infrastructure across LAN, WAN, and cloud environments. You'll be involved in both project-based work and the daily operations of mission-critical systems, with opportunities to grow into advanced roles across networking, infrastructure, and cybersecurity.
What You'll Be Doing
Design, implement, and maintain LAN, WAN, WLAN, VPN, and firewall systems
Configure and deploy network appliances, routers, switches, and load balancers (e.g. Cisco, Fortinet)
Conduct vulnerability assessments and support remediation across network layers
Troubleshoot network performance issues and ensure minimal downtime
Work closely with clients and teams to generate system specs and present architecture solutions
Plan, execute, and monitor IT infrastructure setup and upgrades (on-prem and virtualised)
Manage and maintain Windows, Unix/Linux servers, vi...