Senior Network Engineer

About DayOne Data Centers

DayOne Data Centers is a Singapore-headquartered global digital infrastructure platform that develops and operates next-generation data centers across Asia Pacific and Europe. Trusted by leading hyperscalers and businesses, the company engineers, builds, and operates high-capacity, AI-ready campuses with speed, scale, and reliability.

Network Architecture and Continuous Improvement

• →Identifying gaps and deficiencies in current network architecture and operations.
• →Proposing improvement plans and driving implementation activities.
• →Supporting the evolution of network standards, documentation, and operational processes.

Network Operations and Troubleshooting

• →Troubleshooting and resolving complex network issues, including root cause analysis, performance tuning, and incident management.
• →Managing routers, switches, firewalls, and wireless infrastructure, including configuration, maintenance, and security hardening.
• →Monitoring network performance, identifying bottlenecks and single points of failure, and implementing improvements to enhance reliability.

Network Design and Project Delivery

• →Designing, implementing, and maintaining data center and workplace network environments.
• →Collaborating with cross-functional teams to ensure successful project delivery and compliance with IT governance standards.
• →Supporting capacity planning, scalability initiatives, and lifecycle management activities across Day 0, Day 1, and Day 2 operations.

Automation and Monitoring

• →Developing and maintaining automation scripts, configuration templates, and backup strategies.
• →Managing network monitoring, alerting, and reporting platforms.
• →Supporting operational visibility through monitoring tools and performance analytics.

Security and Compliance

• →Ensuring secure transmission of internal data and compliance with network security standards.
• →Implementing and maintaining network security controls and best practices.
• →Supporting ongoing initiatives to strengthen infrastructure resilience and security posture.

Technical skills

• Minimum 5 years of experience in network engineering, implementation, and operations.
• Strong hands-on experience in enterprise and/or data center network environments.
• Proven ability to troubleshoot complex network issues and deliver end-to-end solutions.
• Experience in network design, planning, and project implementation.
• Experience working in global enterprise environments, large-scale infrastructure environments, or consulting organizations is considered an advantage.

Network & Protocols

• Strong knowledge of IP routing and switching technologies, including OSPF, BGP, and MPLS VPN.
• Experience with SD-WAN technologies.
• Solid understanding of LAN and WAN architectures.

Devices & Platforms

• Hands-on experience with Cisco, H3C, Aruba, and other enterprise networking platforms.
• Strong familiarity with routers, switches, firewalls, and wireless networking solutions.

Security

• Experience with Fortinet firewalls, WAF solutions, NAC platforms such as ISE or FAC, and network security controls.
• Good understanding of network security monitoring and industry best practices.

Tools & Automation

• Experience using network monitoring tools such as Zabbix, Grafana, and ELK.
• Familiarity with IPAM platforms, configuration management, backup solutions, and automation tools.

Certifications

• CCNP, CCIE, or equivalent practical experience is considered highly beneficial.

Soft skills

• Effective and clear communication skills with the ability to collaborate across technical and business teams.
• Strong analytical and problem-solving capabilities.
• Proactive, solutions-oriented mindset with high integrity and a collaborative working style.
• Ability to work in a fast-paced operational environment.
• Proficiency in English, both written and spoken. Knowledge of Finnish is considered a benefit.