Senior Network Systems Engineer – Train Control & SCADA Operations

Philadelphia, PA || Onsite Job Description Key Responsibilities:

• Lead technical efforts to maintain and enhance Train Control and SCADA system infrastructure.
• Ensure 24/7 availability of four critical Train Control System facilities and their supporting network infrastructure.
• Administer and configure RedHat and Windows-based systems for high availability and security.
• Manage, maintain, and troubleshoot routers, switches, and firewalls in support of a fault-tolerant communications network.
• Plan and execute software and hardware upgrades for servers, workstations, and network equipment.
• Develop, implement, and monitor network security policies and practices.
• Interface with internal and external technical specialists to resolve system issues and plan enhancements.
• Create and maintain system documentation, network diagrams, and troubleshooting procedures.
• Support emergency technical response and rotating on-call responsibilities.
• Assist with developing procedures and documentation to improve operational readiness and response.

Qualifications

• Minimum 7 years of experience supporting SCADA or real-time control systems
• Minimum 7 years of experience with RedHat and Windows systems administration
• Experience configuring and maintaining routers, switches, and firewalls
• Strong understanding of network security practices and protocols
• Proven experience in full lifecycle management of hardware/software projects
• Expertise in RedHat Enterprise Linux and Windows Server platforms
• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience)
• Industry certifications such as CompTIA Network+, Security+, or equivalent
• Cisco certifications such as CCNA or CCNP (preferred)
• Experience with high-availability, fault-tolerant network design
• Strong technical documentation and troubleshooting skills
• Experience working in 24/7 operational environments with on-call responsibilities
• Familiarity with railroad operations, signaling, or transportation systems (preferred)
• Master’s degree in Computer Science or related field (preferred)