Note: The job is a remote job and is open to candidates in USA. Divcon is a Dallas-based company that delivers integrated automation solutions nationwide. They are seeking a Network Engineer who will ensure the security, reliability, and performance of network infrastructure for industrial control systems and SCADA environments.
Responsibilities
- Design, implement, and maintain secure network architectures for converged IT/OT environments, including segmentation, firewalling, and zero-trust strategies
- Configure and manage network infrastructure including switches, routers, firewalls, VPNs, and intrusion detection/prevention systems (IDS/IPS)
- Develop and enforce cybersecurity policies aligned with IEC 62443, NIST Cybersecurity Framework, and CIS Controls for industrial environments
- Perform network vulnerability assessments, penetration testing, and risk analysis specific to industrial control system (ICS) and SCADA networks
- Monitor network traffic for anomalous behavior using SIEM tools and OT-specific threat detection platforms
- Implement and maintain secure communication channels for industrial protocols (BACnet/IP, Modbus TCP, DNP3, OPC UA, MQTT, EtherNet/IP)
- Collaborate with controls engineers, facilities teams, and third-party integrators to ensure secure system deployments and commissioning
- Lead incident response efforts for network security events affecting industrial systems, including forensic analysis and remediation
- Document network topologies, security procedures, and standard operating procedures (SOPs) for IT/OT infrastructure
- Stay current on emerging cyber threats targeting industrial environments and critical infrastructure sectors
Skills
- Education: Bachelor's degree in Computer Science, Network Engineering, Cybersecurity, or a related technical field (or equivalent experience)
- Experience: 5+ years in network engineering with at least 3 years focused on cybersecurity in industrial or OT environments
- Strong working knowledge of industrial protocols: BACnet, Modbus (RTU/TCP), DNP3, OPC UA, MQTT, EtherNet/IP, PROFINET
- Hands-on experience with network security tools: firewalls (Palo Alto, Fortinet, Cisco ASA), IDS/IPS, NAC, SIEM platforms
- Deep understanding of the Purdue Model / ISA-95 reference architecture for industrial network segmentation
- Experience implementing IEC 62443 security standards in operational technology environments
- Proficiency with network monitoring and analysis tools (Wireshark, Nmap, NetFlow/sFlow, Zeek/Bro)
- Solid foundation in TCP/IP, VLANs, routing protocols (OSPF, BGP), VPN technologies, and 802.1X
- Industry certifications such as CISSP, GICSP (Global Industrial Cyber Security Professional), CCNP Security, CEH, or CompTIA CASP+
- Experience with SCADA systems, building management systems (BMS), or energy management platforms
- Familiarity with cloud-based OT monitoring solutions and secure remote access architectures
- Knowledge of NERC CIP, NIST SP 800-82, or other critical infrastructure protection frameworks
- Experience with network automation and scripting (Python, Ansible, Terraform)
- Background in data center infrastructure, electrical power monitoring systems (EPMS), or mission-critical facilities
- Familiarity with Ignition SCADA platform or similar industrial software environments
Benefits
- Hands-on training and career advancement in an exploding data-center industry.
- We cover 100% of individual medical premiums and help offset the cost of family coverage.
- 401K with employer match (Eligible after 90 days).
- Both short- and long-term disability insurance provided at no cost to our employees.
- Flexible PTO (Take time off when you need it, no accruing time necessary).
- For eligible field-based roles that require travel: Divcon covers all business travel expenses and provides a per diem, phone allowance, tools, and PPE at no cost.
- Eligible employees also receive paid training and additional reimbursable business expenses.
Company Overview