Network & Infrastructure Engineer (Data Center)

Nordecon Oy; Riihimäki; On-site; EUR 60,000 - 100,000; Full time

Job summary

Nordecon Oy is building a modern AI-focused Data Center in Finland and seeks an experienced Network & Infrastructure Engineer who enjoys designing, building and operating reliable infrastructure.

You will design and operate the entire network, from data center fabric to external connectivity, with ownership of architecture, implementation and day-to-day operation. The role demands strong fundamentals in routing, switching, security and documentation.

Qualifications

• Strong networking fundamentals and data center/network design experience.
• Experience designing and deploying enterprise or data center networks.
• Familiarity with Cisco/Juniper/Arista platforms and TCP/IP.

Responsibilities

• Design, implement and operate the complete data center network.
• Plan and document network topology, IP addressing, VLANs and VRF structures.
• Configure and manage external connectivity, BGP and Internet redundancy.
• Build and maintain monitoring and automation for reliability.
• Collaborate with electrical/mechanical teams for integrated infrastructure.

Skills

Networking knowledge

Data center design

Cisco/Juniper/Arista

TCP/IP

BGP

OSPF

VLAN

LACP

Linux administration

Fibre networking

Troubleshooting

Documentation

Project ownership

Job description

Established in 2006, Nordecon Oy is a multinational OEM company and solution provider specializing in complex end-to-end mobile, server, and custom-built desktop solutions. With nearly two decades of experience and a strong track record in delivering innovative and reliable technology solutions, the company is pivoting towards new opportunities. We are building a modern AI-focused Data Center in Finland designed for high-density GPU computing. Our infrastructure is being built from the ground up, giving you the opportunity to influence every aspect of the network architecture instead of maintaining legacy systems.

We are looking for an experienced Network & Infrastructure Engineer who enjoys designing, building and operating reliable infrastructure.

What you will do

You will be responsible for designing, implementing and operating the entire network infrastructure of the data center.

This role combines architecture, implementation and day-to-day technical ownership.

Network Architecture

• Design the complete data center network from the ground up.
• Develop scalable and resilient network architecture.
• Design physical fibre topology.
• Design IP addressing strategy.
• Design VLAN and VRF structure.
• Design rack connectivity standards.
• Produce and maintain network documentation.
• Plan future expansion of the infrastructure.

External Connectivity

• Design and maintain multi-ISP connectivity.
• Configure and operate BGP.
• Design Internet redundancy and failover.
• Coordinate network connectivity with providers.
• Plan future interconnection between multiple data center locations.

Internal Network

• Deploy and maintain switches, routers and firewalls.
• Configure Layer 2 and Layer 3 networking.
• Build management and out-of-band networks.
• Maintain network security.
• Troubleshoot complex networking issues.
• Support high-speed Ethernet environments (25G / 100G / 400G).

Monitoring & Automation

• Build network monitoring and alerting.
• Integrate infrastructure into monitoring platforms.
• Automate repetitive operational tasks.
• Maintain accurate documentation.
• Improve operational reliability.

Infrastructure Integration

Work closely with electrical and mechanical contractors to integrate infrastructure into a unified monitoring platform.

Examples include

• UPS
• Generators
• Cooling systems
• Water pumps
• Fire detection systems
• Environmental monitoring
• Building Management System (BMS)

Experience with Modbus, BACnet or similar industrial protocols is an advantage but not required.

Required Skills

• Strong networking knowledge.
• Experience designing and deploying enterprise or data center networks.
• Cisco, Juniper, Arista or similar platforms.
• TCP/IP.
• BGP.
• OSPF.
• VLAN.
• LACP.
• Linux administration.
• Fibre networking.
• Excellent troubleshooting skills.
• Good documentation practices.
• Ability to independently deliver technical projects.

Nice to Have

• EVPN / VXLAN.
• Spine-Leaf architectures.
• Network automation.
• Python.
• Ansible.
• Grafana.
• Prometheus.
• Zabbix.
• GPU cluster networking.
• AI/HPC infrastructure.
• Kubernetes.
• Docker.
• Modbus.
• BACnet.

What we are looking for

We are looking for an engineer who enjoys building infrastructure rather than simply maintaining existing environments.

You should be comfortable taking ownership of technical decisions, designing solutions from scratch and implementing them yourself.

You don’t need to know everything. We value strong networking fundamentals, practical problem-solving skills and a willingness to learn.

What we offer

• Opportunity to build a modern AI Data Center from the ground up.
• Freedom to influence technical decisions.
• Modern infrastructure.
• High level of technical ownership.
• Long-term career growth.
• Competitive salary based on experience.

Work Setup

Location: Riihimäki, Finland (hybrid work possible but on-site presence required at times)

Type: Full-time, permanent

Compensation: Competitive and based on experience. Start: As soon as a suitable candidate is found but the start date is flexible.

Employment relationship: Employment

Wage: Other

Working time: Daytime work, Evening work, Night work, Weekdays, Weekends

Number of positions: 1

Source: Job Market Finland/Työmarkkinatori

Osaamisalue: IT & tietoliikenne, Media & viestintä