Technical Network Manager

Join DayOne – Shaping the Future of Data Infrastructure
DayOne is a global leader in the development and operation of high-performance data centers. As one of the fastest-growing companies in the industry, we’ve built a robust presence across Asia and Europe — and we’re just getting started.
As we expand into new international markets, we’re looking for talented, driven individuals to join us on this exciting journey. This is more than a job — it’s an opportunity to be a key contributor to our dynamic team and help shape the future of global data infrastructure.
If you're passionate about innovation, technology, and growth, we invite you to be part of DayOne’s next chapter.

• Network Architecture: Conceptualize and document network topologies (LAN, WAN, WLAN, and Data Center), selecting appropriate hardware and software solutions.
• Security & Compliance Architecture: Harden network perimeters by designing redundant firewall clusters, robust identity management (802.1X/TACACS+), and zoning strategies.
• Performance Optimization: Plan systems for optimal traffic routing, bandwidth allocation, and fault tolerance.
• Vendor & Carrier Coordination: Work with telecom providers, third-party managed services, and hardware vendors for circuit delivery and infrastructure procurement.
• Project Management: Oversee the lifecycle of network rollouts, from initial design and budgeting to deployment and post-implementation review.
• Tier 3 Escalation: Act as the ultimate escalation point for complex network outages, routing loops, and critical performance degradation
• Wireless Architecture Design: Design robust Wi-Fi networks (Wi-Fi 6/6E/7) utilizing centralized Wireless LAN Controllers (WLCs), cloud-managed platforms, and virtual controllers
• Documentation: Create and maintain comprehensive design diagrams, as-built drawings, and configuration templates.

• Minimum 10 years of experience in network engineering, implementation, and operations
• Strong hands-on experience in enterprise and/or data center network environments
• Experience in global enterprise, large-scale environments, or consulting firms (e.g., Big4) is an advantage
• Proven ability to troubleshoot complex network issues and deliver end-to-end solutions
• Experience in network design, planning, and project implementation is preferred

• Protocols & Tech: In-depth knowledge of TCP/IP, BGP, OSPF, VLANs, VXLAN, EVPN, and VPNs.
• Enterprise Hardware: Hands-on experience with routing/switching (e.g., Cisco, H3C, Aruba) and next-generation firewalls (e.g., Fortinet, Palo Alto, Check Point).
• SD-WAN Platforms: Deep expertise in systems like Cisco Catalyst SD-WAN (Viptela), VeloCloud, Fortinet, or Aruba SDWAN.
• Wireless Security & Authentication: Implement and maintain secure wireless access methods, including WPA3-Enterprise, 802.1X authentication, RADIUS servers, and Guest Portals
• Core Networking Integration: Strong grasp of foundational network concepts like VLANs, DHCP, 802.1q trunking, PoE (Power over Ethernet) budgets, and basic routing.

Devices & Platforms

• Hands-on experience with Cisco, H3C, Aruba, and other mainstream vendors
• Familiar with routers, switches, firewalls, and wireless solutions

Security

• Experience with Fortinet firewalls, WAF, NAC (ISE/FAC), and network security controls
• Understanding of network security best practices and monitoring

Tools & Automation

• Experience with monitoring tools (Zabbix, Grafana, ELK)
• Familiar with IPAM, configuration backup, and automation/orchestration tools

Certifications (Preferred)

• Industry-standard credentials such as CCNP/CCIE (Cisco) or Network/Security Cloud Certifications are highly preferred.

DayOne is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
If you're ready to grow with one of the fastest-moving companies in the data center industry, apply now and be part of our global journey.