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Senior System Engineer

Belgrade, Belgrade, Serbia; EU - Serbia - Remote

Network Optix (Nx) is a global powerhouse in video software development, driven by a mission to empower the creation of intelligent video-based solutions and products capable of converting video into actionable data. Over a decade in the making, the Network Optix Enterprise Video Operating System helps innovative organizations rapidly and affordably build world-class, custom-tailored, enterprise-scale video products and solutions.

Nx is headquartered in Walnut Creek, California, with additional locations in Burbank, California, Portland, Oregon, Belgrade, Serbia, Taipei, Taiwan, and regional teams distributed across the globe. Recognized on the Inc 5000 Fastest Growing Companies list for 9 years running, we are committed to expanding our teams cross-functionally and globally.

Network Optix aims to power the world’s most intelligent video solutions, with the ultimate goal of carving a path toward revolutionizing the landscape of video technology and transforming how we perceive the world around us.

As a Senior System Engineer, you will design, implement, and maintain server and network systems, working closely with cross-functional teams to ensure solutions align with company standards and adapt to evolving technical environments.

What You’ll Be Doing

  • Leading the company’s Network and IT Systems design and architecture
  • Establishing company-wide processes for server installation, configuration, maintenance, backups, and recovery
  • Maintaining applications and services provided by the IT team
  • Designing, installing, and maintaining virtual environments across the company in a high-availability setup
  • Designing, installing, configuring, and maintaining company-wide network infrastructure and equipment
  • Identifying, tracking, and resolving issues in the corporate issue tracking system
  • Configuring and maintaining network and server monitoring systems (Zabbix + Proxies, custom SNMP OID tracking, and in-house developed statistics trackers)
  • Providing prompt and effective responses to technology-related issues
  • Being available to work occasionally after hours or on weekends to support company or IT projects
  • Resolving user issues related to the server and network environment
  • Configuring and maintaining production-grade VPN servers (multi-node OpenVPN CE, L2TP/IPSec tunneling, DNS geobalancer & failover over AWS Route 53)
  • Supporting and optimizing high-load DNS systems (current production handles ~400k–500k DNS requests per minute during peak load phases)

What We’re Looking For

  • Bachelor’s degree in Computer Science or a related field, or equivalent professional experience
  • At least 8 years of hands-on experience in a corporate IT environment, including server/network systems and end-user support
  • Extensive experience with Linux, Microsoft Windows Server (2003, 2008, 2012), and Mac devices in a mixed environment
  • Strong troubleshooting skills and support experience with Linux, Mac OS, and Windows Server environments
  • Deep understanding of networking, including routing management and dynamic routing protocols (BGP), VLAN tagging and policy configuration, and Quality of Service (QoS) setups
  • Experience configuring and managing enterprise-class networking equipment — Mikrotik Enterprise is a must
  • Experience with cloud-based infrastructure
  • Experience designing and managing networks with high-bandwidth traffic (e.g., video streaming)
  • Experience working in a software development company (preferred)
  • Experience managing and deploying Linux/Unix systems
  • Proficiency in installing, configuring, networking, and maintaining virtual servers
  • Ability to configure and manage enterprise-class switches, routers, and wireless access points
  • Experience configuring Storage Area Networks (SAN)
  • Experience monitoring highly distributed infrastructure environments
  • Strong scripting experience in Bash and Python (JavaScript is a plus)
  • Deep knowledge of networking stacks and TCP/IP implementations across different operating systems
  • Solid understanding of the OSI model and hands-on experience with traffic analysis tools such as tcpdump, Wireshark, logs, and Torch
  • Thorough understanding of operating systems in enterprise environments
  • Ability to identify and resolve complex technical issues with minimal supervision
  • Strong collaboration skills to work across teams in resolving IT-related issues
  • Ability to independently manage complex technical projects, such as system implementations and upgrades
  • Advanced knowledge of server and network operations in enterprise environments
  • Proficiency with Jira
  • Proficiency with Google Workspace (formerly G Suite)
  • Professional attitude and excellent communication skills
  • Self-starter capable of working independently and managing assigned projects with minimal oversight

What we offer

  • Competitive compensation
  • Paid time off
  • Flexible working hours
  • Hybrid work in our brand-new, comfortable office
  • Employer-sponsored health coverage
  • Working with top industry experts in our international team

Hybrid or Remote

The position is ideally a hybrid role, and the office is located in Belgrade, Serbia. We will also consider remote candidates in Serbia.

Network Optix is an equal opportunity employer committed to diversity and inclusion in the workplace. We celebrate the diversity of our workforce, which includes people of all cultural, national, racial, gender identities, and those who have served in the military. We strive for an environment where creativity and collaborative growth thrive. If you have a disability or special need that requires accommodation, please let us know. 

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