Hybrid Cloud Infrastructure Engineer

RECRUITCO PTE. LTD.; Singapore; On-site; SGD 100,000 - 150,000; Full time

Job summary

RECRUITCO PTE. LTD. in Singapore is seeking an experienced Infrastructure Engineer to design, implement, and operate secure and resilient enterprise infrastructure across data centres and public clouds.

You will administer Linux/Windows servers, virtualization, storage, and backups, while managing network and security controls, and supporting hybrid cloud deployments. Strong certifications and international collaboration are valued.

Qualifications

• At least five years of hands-on experience in enterprise infrastructure engineering.
• Deep knowledge in at least one core infrastructure domain with broad cross-domain awareness.
• Hands-on experience administering Linux and/or Windows Server environments.
• Experience with enterprise virtualization, storage, backup, high-availability, and disaster recovery.
• Experience designing, deploying, operating, or migrating infrastructure in public or hybrid cloud.
• Strong networking knowledge: TCP/IP, routing, switching, firewalls, VPNs, DNS, DHCP, WAN.
• Certifications such as CCNP, RHCE, or cloud infra cert preferred.
• Familiarity with public cloud networking and IAM.

Responsibilities

• Design, implement, operate, and maintain secure, reliable infrastructure across data centres and public clouds.
• Administer compute infrastructure including Linux/Windows servers, virtualization, storage, and backups.
• Configure and monitor network and security infrastructure: routers, firewalls, VPNs, DNS, DHCP, WAN.
• Manage public/hybrid cloud networks, security controls, and migrations.
• Monitor availability, performance, capacity, and security; address risks and degradation.
• Plan upgrades, patching, maintenance, migrations, and lifecycle activities with change control.
• Respond to incidents; perform root cause analysis and preventive actions.
• Maintain security controls, baselines, patch management, access controls, monitoring.
• Provide Level 2/3 escalation for infrastructure issues.
• Coordinate with vendors, cloud providers, and internal teams on operations and projects.
• Support disaster recovery and business continuity drills; update runbooks and docs.
• Maintain architecture and network diagrams and other docs.
• Contribute to risk assessments, audits, and regulatory inspections.
• Participate in scheduled maintenance and after-hours support for critical incidents.

Skills

Infrastructure engineering

Systems administration

Networking

Public cloud

Linux

Windows Server

Security controls

Education

CCNP/RHCE or cloud infra cert

Tools

Virtualization platforms

Storage systems

Backup solutions

Job description

Responsibilities

• Design, implement, operate, and maintain secure, reliable, and resilient infrastructure across the Company's data centres, corporate offices, and public cloud environments.
• Administer and support enterprise compute infrastructure, including Linux and Windows servers, virtualization platforms, storage systems, backup solutions, and core infrastructure services.
• Configure, administer, and monitor network and security infrastructure, including routers, switches, firewalls, VPN gateways, proxy servers, DNS, DHCP, WAN links, and related components.
• Manage public and hybrid cloud infrastructure, including virtual networks, routing, security controls, resource monitoring, connectivity, and infrastructure migration activities.
• Monitor infrastructure availability, performance, capacity, and security, and proactively identify and address potential risks, service degradation, and capacity constraints.
• Plan and execute infrastructure changes, upgrades, patching, maintenance, migrations, and technology lifecycle activities in accordance with the Company's change management and security requirements.
• Respond to infrastructure incidents, coordinate service restoration, conduct root cause analysis, and implement appropriate corrective and preventive actions.
• Implement and maintain infrastructure security controls, including system and network hardening, secure configuration baselines, vulnerability remediation, access controls, patch management, and security monitoring.
• Provide Level 2 and Level 3 escalation support for infrastructure-related issues affecting production and corporate environments.
• Perform connectivity testing, troubleshooting, circuit provisioning, and migration activities for trading and clearing members.
• Support disaster recovery, business continuity, backup restoration, system failover, and infrastructure resilience exercises, and follow up on identified improvement actions.
• Maintain accurate and up-to-date architecture diagrams, network diagrams, configuration records, operating procedures, recovery runbooks, and other technical documentation.
• Coordinate with internal stakeholders, technology vendors, cloud service providers, telecommunications carriers, and external counterparties on infrastructure operations, projects, and incident resolution.
• Provide technical input and supporting evidence for risk assessments, security reviews, internal and external audits, and regulatory inspections.
• Participate in scheduled maintenance activities and provide after-hours support for critical production incidents when required.

Requirements

• At least five years of hands-on experience in enterprise infrastructure engineering, preferably within a highly available, business-critical, or regulated environment.
• Demonstrated technical depth in at least one core infrastructure domain, such as systems, networking, virtualization, storage, or public cloud, together with sound working knowledge across the broader infrastructure landscape.
• Hands-on experience administering Linux and/or Windows Server environments and associated enterprise infrastructure services.
• Practical experience with enterprise virtualization, storage, backup, high-availability, and disaster recovery technologies.
• Experience designing, deploying, operating, or migrating infrastructure within a public cloud or hybrid cloud environment.
• Sound knowledge of networking technologies, including TCP/IP, routing, switching, firewalls, VPNs, DNS, DHCP, WAN connectivity, and network troubleshooting.
• Relevant professional certifications, such as CCNP, RHCE, or an infrastructure certification from a major public cloud provider (preferred).
• Familiarity with public cloud networking, security controls, identity and access management (preferred).