Senior Network Engineer Datacenter, Security

Top 3 Reasons To Join Us

13th-month bonus, and performance bonus

Private health insurance package provided

Working hours: 09:00–17:30, Monday to Friday.

The Job

Position Summary

We are looking for a Network Engineer to operate, secure, and improve enterprise and datacenter network infrastructures.

The engineer will act as an L3 escalation point, participate in the scheduled On-Call rotation, and may temporarily support shift operations when required due to staffing needs.

The engineer will work on network design, routing and switching, firewalls, VPN, vulnerability management, DDoS protection, customer migration projects, and L3 technical escalation.

Scope of work:

Design, implement, and operate Data Center Network architecture utilizing the Leaf-Spine model (Border Leaf, Compute Leaf, BGW-Leaf).

Improve network security by moving towards a modern identity-based perimeter (Zero Trust) and managing VPN technologies (SD-WAN, SASE, SSL-VPN).

Track and resolve security advisories/CVEs from vendors (Fortinet, Arista), assess infrastructure impact, and execute firmware upgrades (e.g., FortiOS HA) and vulnerability patching.

Implement and manage ACLs, storm-control, and STP/BPDU guard on switches to mitigate security risks and control BUM traffic.

Deploy and manage DDoS protection solutions and propose advanced mitigations.

Manage hardware lifecycles, replace faulty components, handle Arista switch RMAs, and adhere to EOS Life Cycle Policies.

Execute network migrations, including IP planning, new topology design, and MPLS channel configurations.

Draft technical documentation, network diagrams, Request For Change (RFC) forms, and standard operating procedures (SOPs) in English.

Troubleshoot complex technical issues/incidents.

Participate in scheduled maintenance windows.

Your Skills and Experience

Skills and Experience:

Minimum of 3 years’ experience implementing, configuring, and improving computer networks.

Demonstrated theoretical and operational knowledge in implementing the simplest modern solutions to complex networking and security requirements.

Demonstrated experience configuring Cisco, Juniper, Arista routers and switches.

Experience with a range of firewall technologies including FortiGate, CheckPoint, PaloAlto Network firewalls.

Demonstrated experience creating and documenting easy to follow processes for changing network infrastructure.

Strong understanding of TCP/IP stack, BGP, OSPF, HSRP, VRFs.

Experience with IP addressing strategies, SNAT, public/private IP planning, and subnetting.

Demonstrated experience creating clear network diagrams, RFCs, and easy-to-follow process documentation.

Excellent analytical, problem-solving, and independent working skills.

Intermediate to advanced technical English skills for reading advisories, writing RFCs, and communicating with partners.

Hands-on experience with VMware NSX-T, including deployment and operation of overlay networking on physical server infrastructure.

Up to date knowledge of the latest modern trends in networking.

Ability to quickly learn new or unfamiliar technology and products using documentation and internet resources.

Ability to work with all levels of staff within and outside of IT and outside the organization.

Why You'll Love Working Here

Attractive Compensation: Competitive base salary based on your capability, 13th-month bonus, and performance bonus. Annual salary review

Private health insurance package provided.

Work-Life Balance: Company trips, team-building events, and internal engagement activities.

Supportive Culture: Open, collaborative, and friendly working environment with positive and skilled teammates.

Working hours: 9:00 – 17:30, Monday – Friday

Working location: Ho Chi Minh Office