Senior Network Architect & IT Landscape Lead

ITSync Group; Amstelveen; On-site; EUR 61,000 - 67,000; Full time

Benefits offered by this job

12-month contract

Salary €5,500–€6,000 gross monthly

35 days annual leave

Holiday allowance

13th-month pay

Pension contributions

Job summary

ITSync Group in Amstelveen, Netherlands, seeks a Senior Network Specialist / Technical Architect who combines deep network expertise with cross-disciplinary architecture skills. You will own LAN, WAN, WiFi, cloud firewall management (SASE), and interface designs, while aligning with suppliers and internal teams.

The role emphasizes documentation, cross-domain problem solving, and architecture governance, with a 12-month contract and potential permanent transition.

Qualifications

• Bachelor HBO level education or equivalent.
• 8+ years of networking experience, including senior/3rd-line level.
• Thorough knowledge of LAN, WAN and WiFi (routing, switching, VLANs, VPN, wireless).
• Experience with cloud-based firewall / SASE solutions.
• Proven experience assessing changes and steering a network supplier.
• Broad technical knowledge beyond networking: servers, cloud, identity, applications and integrations.
• Experience setting up interfaces and introducing new systems in a complex IT landscape.
• Strong documentation skills; clear, structured, maintainable.
• Good command of Dutch and English, spoken and written.

Responsibilities

• Act as technical owner of LAN, WAN and WiFi environment.
• Manage the cloud firewall / SASE platform; adjust policies and keep clean.
• Assess changes proposed by supplier for technical content, risk and impact.
• Spar with supplier on technical issues and incidents; challenge proposed solutions.
• Monitor supplier performance against SLA/DAP; track incidents and changes.
• Analyze complex network and connectivity issues with supplier to root cause.
• Keep the network secure and future-proof: segmentation, remote access, zero-trust.

Skills

LAN/WAN/WiFi

Network architecture

Cloud/SASE

Documentation

Dutch & English

Supplier management

Technical ownership

Education

Bachelor HBO

Tools

CATO Networks

Job description

ITSync Group in Amstelveen, Netherlands, seeks a Senior Network Specialist / Technical Architect who combines deep network expertise with cross-disciplinary architecture skills. You will own LAN, WAN, WiFi, cloud firewall management (SASE), and interface designs, while aligning with suppliers and internal teams.

The role emphasizes documentation, cross-domain problem solving, and architecture governance, with a 12-month contract and potential permanent transition.