Network Operations Engineer III

Astreya China; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Astreya China is seeking a Network Operations Engineer III to oversee the operation, maintenance, and troubleshooting of optical and IP networks. You will work with minimal supervision to address complex issues and ensure network reliability across global services.

The role requires deep understanding of DWDM/CWDM, IPv4/IPv6, MPLS, BGP, and OSPF, plus strong communication with service providers and vendors. Independently manage deployments and resolve outages efficiently to minimize downtime.

Qualifications

• 5–8 years of related experience or training with optical and IP networks.
• Proven experience with DWDM/CWDM and IPv4/IPv6 routing with MPLS, BGP and OSPF.
• Strong root cause analysis and problem-solving abilities.

Responsibilities

• Perform network management, maintain performance and capacity of optical and IP networks.
• Troubleshoot and resolve diverse hardware and software issues with multiple vendors.
• Collaborate with global providers and internal teams to ensure network reliability.

Skills

DWDM/CWDM

IPv4/IPv6, MPLS, BGP, OSPF

Fiber-optic technology

Root cause analysis

Vendor coordination

Communication skills

Education

Bachelor’s degree in a related field

Tools

Network management tools

Vendor equipment

Job description

What this Job Entails:

The Network Operations Engineer III is a senior-level role that focuses on the operation, maintenance, and troubleshooting of both optical and IP networks. This position demands a
high degree of independence, accuracy, and attention to detail. The engineer will address a wide range of complex network issues, working on diverse problems with minimal supervision.

This role requires a deep understanding of optical and IP networking, hardware technologies, and network management tools.

Scope:

• Resolve a wide range of network issues creatively and effectively.
• Monitor the performance and health of optical and IP networks using advanced network management tools.
• Tackle diverse and complex problems, applying sound judgment and innovative solutions.
• Operate with minimal guidance on daily tasks, requiring only general instructions for new assignments.
• Troubleshoot and resolve network issues to ensure minimal downtime and service disruptions.

Your Roles and Responsibilities:

Network Management:

• Manage and optimise hardware technologies to maintain network performanceand capacity.
• Engage in day-to-day troubleshooting, working with multiple vendorequipment, and resolving various software and hardware issues.

Issue Resolution:

• Address network traffic issues and respond to queries raised by XFNs andpartners.
• Collaborate with XFNs and vendors to resolve network-related problemspromptly and effectively.
• Conduct root cause analysis for network outages, providing detailed reportsand solutions.

Cross-functional Collaboration:

• Work closely with service providers, colocation facilities, and XFNs globally, ensuring seamless network operations.
• Support network infrastructure projects and collaborate with cross-functionalteams on new network initiatives.

Additional Duties:

• Take on other duties as required, contributing to the overall success and reliability of the network infrastructure.

Required Qualifications/Skills:

• Bachelor’s degree (B.S/B.A) from a four-year college or university, with 5 to 8 years of related experience and/or training; or an equivalent combination of education and experience.
• Proven experience in optical networking (DWDM, CWDM) and IP networking (IPv4/IPv6, MPLS, BGP, OSPF).
• Strong judgment in selecting appropriate methods and techniques for obtaining network solutions.
• Comprehensive understanding of fiber-optic technology, including cable types, connector types, optic types, patch panels, and optical transport technologies.
• Experience in preparing root cause analysis reports for network and server outages.
• Strong communication skills, capable of effectively working with global service providers, colocation facilities, and ISPs.

Preferred Qualifications:

• Experience working in a multi-vendor network environment.
• Relevant network certifications such as CCNP, NCIP, OCA, or equivalent.

Physical Demand & Work Environment:

• Ability to perform office-related tasks, including prolonged sitting or standing.
• Capability to move within an office environment and effectively use a computer.
• Must have strong communication skills for effective collaboration and coordination.
• Occasional repetitive motions of the wrists, hands, and/or fingers may be required.
• This position offers the opportunity to work independently on complex network operations tasks while playing a critical role in maintaining and optimizing a global network infrastructure.