Network Administrator
Orion Innovation
Office
Belgrade, Serbia
Full Time
Orion Innovation is a premier, award-winning, global business and technology services firm. Orion delivers game-changing business transformation and product development rooted in digital strategy, experience design, and engineering, with a unique combination of agility, scale, and maturity. We work with a wide range of clients across many industries including financial services, professional services, telecommunications and media, consumer products, automotive, industrial automation, professional sports and entertainment, life sciences, ecommerce, and education.
The customer is a technology-driven company behind one of the world’s leading social networking apps, built on scalable cloud architecture and powered by real-time systems, advanced data processing, and AI-driven personalization.
Scope:
- Network operations, including monitoring, configuration, incident response, and project work across multiple sites and GCP
- Majority of devices are Juniper MX, QFX, SRX. Also, some legacy equipment from Cisco and Alcatel, and a few Fortinets for OOB management
- Assist in cloud networking initiatives as migration progresses
- Manage IP address spaces, subnets, VLANs
- Contribute to network perimeter security and participate in on-call rotations
Tasks:
- Routing configuration
- Writing detailed instructions and documentation for on-site engineers to perform physical or hands-on tasks if needed
- Daily remote network operations and incident response
- Project-based network configuration and upgrades
- Security operations including DDoS mitigation (Imperva) and firewall management (Fortinet)
Tech Stack:
- Routing protocols: BGP, ISIS, EVPN-VXLAN
- Vendors: Juniper (MX, QFX, SRX), legacy Cisco and Alcatel, Fortinet for OOB and firewalls
- DDoS protection: Imperva
- Firewalls: Fortinet (for PCI-DSS firewalls)
- Linux servers: (CentOS/RHEL) network subsystems
- Environments: 5 physical locations (Europe and USA) + GCP
- Network protocols: IPv4 (IPv6 optional), ICMP, TCP, UDP, DHCP, DNS
- Load balancing and VLANs (802.1Q, bonding, 802.1X)
- Tooling: No specific requirements for configuration management or network monitoring tools
Skills:
- Experience with BGP, ISIS, EVPN-VXLAN
- Ability to document clear instructions for on-site teams
- General adaptability to different tooling environments
- Security knowledge (DDoS protection, firewall rule management)
On-Call:
- Yes, included in a week-long 24x7 support rotation approximately every 3rd week
What we offer:
- Dynamic and supporting international teams.
- Regular assessments and performance reviews. You will have the opportunity for
- Promotion, bonuses and a raise in accordance with the pace at which you develop and your performance.
- Remote, hybrid or office work.
- 20-25 vacation days per year.
- Equipment for work, laptop and all necessary additions.
- Access to trainings and courses.
- Private health insurance.
- FIT Pass card for many sports’ facilities.
Orion is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, creed, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, citizenship status, disability status, genetic information, protected veteran status, or any other characteristic protected by law.
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Network Administrator
Office
Belgrade, Serbia
Full Time
August 19, 2025