DZH INTERNATIONAL PTE. LTD. Hiring! Full Time Senior IT Network - Infrastructure System Engineer in Central Region (Singapore), Earn up to SGD 6,000 - Ricebowl

Senior IT Network & Infrastructure System Engineer – Build, Secure & Strengthen Mission-Critical Infrastructure
Location: Tanjong Pagar | Award-Winning Fintech Solutions

Ready to take ownership of critical infrastructure, design resilient networks, and support high-performance systems that power the financial industry?

Join us as a Senior IT Network & Infrastructure System Engineer and play a key role in supporting the enterprise IT environment behind our award-winning trading systems used by leading brokerages and banks across Asia. We’re looking for a hands-on engineer who can lead infrastructure operations, drive continuous improvements, support customers, and deliver complex network and data centre initiatives in a fast-paced production environment.

This is a full-time, on-site in office position.
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What You’ll Own & Ace

Keep systems healthy – own daily application and system health checks to ensure stability, uptime, and operational reliability
Improve monitoring & alerting – drive continuous improvement of monitoring and alerting across infrastructure and application environments
Lead infrastructure operations – manage and support the company’s IT infrastructure, including network, systems, storage, and virtualization/containerization platforms
Design network architecture – design, implement, and maintain secure, scalable, and reliable network architecture
Deliver data centre projects – plan and execute data centre relocation, migration, and consolidation projects, including capacity planning, rack/power/cabling coordination, and cutover scheduling
Maintain critical documentation – prepare and maintain accurate documentation on IT assets, network diagrams, system configurations, and DR/BCP procedures
Work closely with customers – liaise with customers’ IT personnel to identify problems, propose solutions, and advise on infrastructure design
Provide hands-on support – provide call support and on-site support whenever necessary
Manage incidents effectively – document and track incidents with root cause analysis, corrective actions, and preventive actions
Support business continuity – provide occasional after-office-hours and weekend support when required (off in lieu provided)
Contribute where needed – take on any other tasks assigned as part of infrastructure and operational support
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What You Bring to the Table

• Degree in Information Technology or a related field
  Minimum 5 years’ working experience in IT Infrastructure, IT Operations, or Network Engineering
• Strong hands-on experience with:
  - RHEL
  - Firewalls
  - Routers
  - Switches
  - Hypervisor / containerization platforms
• Solid experience in network design and setup, including:
  - VLAN
  - IPSec VPN
  - SD-WAN
  - Routing protocols such as OSPF and BGP
• Proven experience in data centre relocation, migration, or consolidation projects is strongly preferred
• Able to work independently, lead initiatives, and take ownership of infrastructure projects
• Willing to provide call support, on-site support, and occasional after-hours/weekend support when required

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Bonus Points If You Have

• RHCSA / RHCE certification
• Working experience in CI/CD implementation
• Working experience with Oracle and MySQL databases
• Working experience in a Financial Services environment
• Experience with data centre relocation / migration projects

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Why You’ll Love It Here

• Attractive salary + awesome perks (medical, birthday leave, study leave & more)
• Impactful work – your designs will keep mission-critical systems running flawlessly
• Stable, supportive culture – great managers, collaborative teammates
• Regular team-building fun to balance the serious stuff