Lead Security Engineer - Product & Infrastructure

UltaHost; Dubai; On-site; AED 180,000 - 260,000; Full time

Job summary

UltaHost is seeking a Senior Product & Infrastructure Security Engineer to own the security of hosting products and the underlying infrastructure. You will work hands-on across Linux security, virtualization, networks, and incident response to protect multi-tenant environments.

Key responsibilities include threat modeling, security testing, secure release practices, and remediation coordination with Product, Engineering, DevOps, and QA teams.

Qualifications

• 5+ years hands-on hosting security experience.
• Advanced Linux administration skills.
• Experience with multi-tenant hosting environments (VPS, shared, dedicated).
• Proxmox, KVM, VMware, Ceph or similar virtualization experience.
• Solid knowledge of TCP/IP, DNS, routing, firewalls, VPNs, segmentation, and traffic analysis.
• Experience with vulnerability scanners, SAST/DAST, and log analysis.
• Understanding of secure release practices and tenant isolation.

Responsibilities

• Review the security of VPS, hosting products, and related platforms.
• Assess authentication, authorization, session security, and data exposure risks.
• Perform threat modeling, architecture reviews, and security testing.
• Define security requirements and release checks for new products and features.
• Collaborate with Product, Engineering, DevOps, and QA to remediate vulnerabilities.
• Define secure baselines for Linux servers, hypervisors, network devices, and management interfaces.
• Investigate brute-force attacks, malware, and abnormal traffic.
• Own DDoS/DoS response including mitigation and post-incident reviews.
• Lead vulnerability management and incident response activities.

Skills

5+ years hosting security

Advanced Linux administration

Multi-tenant hosting

Proxmox

KVM

VMware

Ceph

Containers virtualization

TCP/IP & DNS

Firewalls & VPNs

DDoS mitigation

OWASP Top 10 & API security

Vulnerability scanners & SAST/DAST

Log analysis & tcpdump/Wireshark

Job description

UltaHost is seeking a Senior Product & Infrastructure Security Engineer to own the security of hosting products and the underlying infrastructure. You will work hands-on across Linux security, virtualization, networks, and incident response to protect multi-tenant environments.

Key responsibilities include threat modeling, security testing, secure release practices, and remediation coordination with Product, Engineering, DevOps, and QA teams.