Network Engineer / IT System Administrator

WhiteBIT; España; On-site; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Health insurance

22 business days of paid leave

Additional days off for nationalholidA

Modern equipment

Job summary

WhiteBIT is seeking a seasoned Network Engineer / IT Systems Administrator in Spain to design, deploy, and secure a multi-vendor network infrastructure across Juniper, Fortinet, and Cisco. You will manage RADIUS/802.1X, SaaS platforms, and automation scripts, ensuring robust uptime and rapid incident response for a fast-growing fintech environment.

You will work with global teams on VPNs, routing, and security protocols, while enabling seamless access and automation across Google Workspace,

Qualifications

• 3+ years in Network Engineer or IT Systems Administrator role.
• Hands-on configuring Juniper, Fortinet, Cisco hardware (routers, switches, firewalls, APs).
• Strong Fortinet NGFW, VPNs (IPsec/SSL), BGP/OSPF, VLAN segmentation, traffic engineering.
• Experience deploying RADIUS and 802.1X.
• SaaS & IT services management (Google Workspace, Atlassian, Slack, SSO/IdP).
• Scripting for automation (Bash, Python, PowerShell) and API/webhook integrations.
• Ukrainian and/or Russian fluent (C1–C2); English (B1–B2) for docs/communication.
• Nice-to-have: CCNA/CCNP, JNCIA, Fortinet NSE 4/5.

Responsibilities

• Configure, manage, and harden multi-vendor network infrastructure (Juniper, Fortinet, Cisco).
• Administer authentication systems using RADIUS and 802.1X for wired and wireless networks.
• Manage user identities and access across Google Workspace, Slack, and other SaaS platforms.
• Develop and maintain automation scripts and API integrations (Jira, Slack, CRM).
• Act as Tier 3 escalation support for network and SaaS outages to ensure high availability.
• Maintain site-to-site VPNs and core routing (BGP/OSPF); monitor with Zabbix/Syslog/SNMP.

Skills

3+ years experience

Juniper

Fortinet

Cisco

Routers & switches

Fortinet NGFW

VPNs (IPsec/SSL)

BGP/OSPF

802.1X

RADIUS / 802.1X

SaaS management

Scripting (Bash/Python/PowerShell)

APIs / Webhooks

English (technical docs)

Ukrainian/Russian fluent

Tools

Jira

Slack

Google Workspace

Atlassian Suite

SSO/IdP

FreeRADIUS / Cisco ISE / FortiAuthenticator

Job description

We are the creators of a new fintech era!

Our mission is to revolutionize the world by making blockchain technology accessible to everyone in everyday life. WhiteBIT is a global team of more than 1,500 professionals united by a shared vision of shaping the future.

We are building our own blockchain ecosystem to ensure maximum transparency and security for over 8 million users worldwide. Our cutting-edge solutions, rapid adaptation to market challenges, and technological excellence set us apart from traditional companies.

Our official partners include Juventus, FC Barcelona, Lifecell, FACEIT, and VISA.

Join us as an Network Engineer / IT System Administrator.

• Requirements :
  Experience & Technical Skills:
• Experience: 3+ years in a Network Engineer or IT Systems Administrator role.
• Networking Equipment (Must-have): Hands-on experience configuring and administering Juniper, Fortinet, and Cisco hardware (routers, switches, firewalls, and wireless APs).
• Network Security & Protocols: Strong proficiency in Fortinet NGFW, VPNs (IPsec/SSL), BGP/OSPF, VLAN segmentation, and traffic engineering.
• AAA & 802.1X: Practical experience deploying and managing RADIUS (FreeRADIUS, Cisco ISE, or FortiAuthenticator) and 802.1X network access control.
• SaaS & Automation:
• IT Services & SaaS: Proven background managing corporate SaaS environments and identity lifecycle (Google Workspace, Atlassian Suite, Slack, SSO/IdP).
• Scripting & Automation: Hands-on scripting skills (Bash, Python, or PowerShell) and experience using APIs / Webhooks for workflow automation (Jira, Slack, CRM integrations).
• Language Requirements:
• Ukrainian and/or Russian: Native or Fluent (C1–C2). Mandatory requirement driven by the need for instant, barrier-free communication during high-severity incidents to minimize MTTR and strictly maintain core SLAs.
• English: Intermediate (B1–B2) for technical documentation, vendor communication, and raising support cases (e.g., TAC).
• Nice-to-Have:
• Vendor certifications such as CCNA/CCNP, JNCIA, or Fortinet NSE 4/5.

Responsibilities :

• Network Equipment & Perimeter: Configure, manage, and harden multi-vendor network infrastructure across Juniper, Fortinet, and Cisco (routers, switches, APs, and Fortinet NGFWs).
• Access Control & AAA: Administer network authentication systems using RADIUS (FreeRADIUS, Cisco ISE, FortiAuthenticator) and 802.1X for corporate wired and wireless networks.
• SaaS & IT Services: Manage user identities, access permissions, and system health across core corporate platforms (Google Workspace, Atlassian Suite, Slack, SSO/IdP).
• Workflow Automation: Build and maintain automation scripts (Bash, Python, or PowerShell) and API integrations connecting internal services (Jira, Slack, CRM).
• Incident Management & SLAs: Act as Tier 3 escalation support for network and SaaS service outages, ensuring fast MTTR and high availability SLAs.
• Routing, VPNs & Monitoring: Maintain site-to-site IPsec/SSL VPNs, core routing (BGP/OSPF), and observability tools (Zabbix, Syslog, SNMP) to catch anomalies proactively.

Working terms

Immerse yourself in Crypto & Web3:

• Master cutting-edge technologies and become an expert in the most innovative industry.

Work with the Fintech of the Future:

• Develop your skills in digital finance and shape the global market.

Take Your Professionalism to the Next Level:

• Gain unique experience and be part of global transformations.

Drive Innovations:

• Influence the industry and contribute to groundbreaking solutions.

Join a Strong Team:

• Collaborate with top experts worldwide and grow alongside the best.

Work-Life Balance & Well-being:

• Modern equipment.
• Comfortable working conditions, and an inspiring environment to help you thrive.
• 22 business days of paid leave.
• Additional days off for national holidays.
• Health insurance.