Senior Network Engineer

Your tasks

• Network Administration and Operations
• Administer LAN, WAN, SD-WAN, Internet, Wi-Fi, and DC/DR networks.
• Administer routers, switches, and assigned firewall, VPN, load balancer, and NAC components.
• Manage IP addressing, VLANs, routing, QoS, network segmentation, and connectivity configurations between systems.
• Operate connectivity to internal bank units, service providers, and payment/business partners.
• Monitor bandwidth, latency, jitter, packet loss, and device status; proactively detect deterioration in connection quality.
• Manage configuration backups, software versions, patches, and network device lifecycles.
• Monitor carrier service quality and SLAs; coordinate the resolution of network circuit incidents.
• Incident Management and Service Continuity
• Serve as the focal point for resolving complex network incidents, connectivity outages, routing failures, and performance degradation.
• Analyze packet captures, logs, routing tables, and connection session information to identify root causes.
• Coordinate with system, application, and information security teams, carriers, and partners to resolve incidents across end-to-end transaction flows.
• Design, operate, and test redundancy mechanisms for devices and network circuits, as well as DC/DR connectivity failover.
• Prepare root cause analysis (RCA), recommend improvements, and track preventive actions to avoid recurrence.
• Participate in on-call operations, incident resolution, and after-hours changes as assigned.
• Project Design and Implementation
• Assess requirements and the current environment, and propose network architectures that meet business, security, and scalability needs.
• Lead the technical work or participate in DC/DR network, SD-WAN, Wi-Fi, NAC, and partner connectivity projects.
• Develop or review HLD/LLD documents, physical and logical diagrams, connectivity flows, and access matrices.
• Develop implementation, testing, migration, and rollback plans; assess impact before making changes.
• Evaluate vendor solutions for redundancy, performance, compatibility, operability, and total cost.
• Automate configuration backups, status checks, and configuration drift detection.

Requirements

Skills:

• Cisco
• Microsoft Office
• Microsoft Word
• LAN
• Customer Service
• Firewall
• Microsoft Excel
• Network Monitoring
• Network Security
• Teamwork

What we offer

• Competitive salary and benefits
• Working time: 8:30AM - 05:30PM, Monday – Friday;
• 12 days of annual leave + 3 days of sick leave + 1 day of birthday per year
• Participated in social insurance, unemployment insurance, health insurance and full policies according to the labor law;
• 13th month salary & bonus policies, allowances at the Company;
• UNIT-Care health care insurance by level;
• Salary increases according to company regulations or unexpected salary raise in case of outstanding ability;
• Professional and dynamic working environment, unlimited promotion opportunities;
• Opportunity to participate in many large projects in Vietnam & abroad;
• Work on the latest technology platform;
• Join in company trip, teambuilding & community activities