Senior Network & Security Architect - Global, Flexible Hours

Randstad Polska Sp. z o.o.; Warszawa; On-site; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Annual performance bonus

Private medical care (family options)

Training & certification support

Flexible working hours

Sport card

Job summary

Randstad Polska Sp. z o.o. is seeking a senior Network & Security Architect to shape our international IT infrastructure.

You will bridge high-level designs with robust security engineering across LAN/WAN/WLAN and core services, delivering scalable HLD/LLD solutions and SME leadership with the MSP and cross-functional teams. You will own architecture, enforce security standards, and drive automation within an Agile environment, while championing continuous infrastructure optimization and

Qualifications

• 5+ years of hands-on experience in enterprise-scale network and security design, implementation, and troubleshooting.
• Proficiency in TCP/IP, BGP, OSPF, STP and hands-on experience with Cisco Nexus/ISE products.
• WAN/SD-WAN deployment, optimization, and advanced troubleshooting.
• Strong proficiency with Next-Generation Firewalls, Fortinet FortiGate; NSE4 possible within 6 months.
• Excellent English (B2+/C1) for global collaborations.

Responsibilities

• Design, test, and develop enterprise-wide network and security infrastructure across LAN, WAN, WLAN, and core services (DNS, IPAM, AAA).
• Serve as a primary technical consultant translating business needs into scalable HLD and LLD solutions.
• Enforce network security policies and firewall rules in coordination with global cybersecurity teams.

Skills

Enterprise networking

Security design

WAN/SD-WAN deployment

Fortinet FortiGate

Cisco IOS/Nexus/ISE

Network troubleshooting

Education

Cisco CCNP certification

Tools

DNS

IPAM

AAA

WAF tuning

Job description

Randstad Polska Sp. z o.o. is seeking a senior Network & Security Architect to shape our international IT infrastructure.

You will bridge high-level designs with robust security engineering across LAN/WAN/WLAN and core services, delivering scalable HLD/LLD solutions and SME leadership with the MSP and cross-functional teams. You will own architecture, enforce security standards, and drive automation within an Agile environment, while championing continuous infrastructure optimization and