Senior Network Engineer

Overview

On Site
Hybrid
BASED ON EXPERIENCE
Contract - W2
Contract - Independent

Skills

NETWORK ENGINEER
NETWORK ADMINISTRATOR
ROUTERS
SWITCHES
FIREWALLS
REDHAT
WINDOWS SERVER
SCADA
REAL-TIME SYSTEMS
NETWORK SECURITY
FAULT-TOLERANT SYSTEMS

Job Details

Job Title: Senior Network Engineer

Location: Onsite Philadelphia, PA
Work Hours: Between 7:00 AM and 6:00 PM EST (Standard 8 hours Shift)
$80/C2C to $85/hr C2C

Position Overview:

We are seeking a highly experienced Network Engineer to support and maintain mission-critical Train Control Systems. This role involves managing secure and fault-tolerant network infrastructures, administering RedHat and Windows systems, and ensuring 24/7 availability of control systems across multiple facilities. The engineer will also contribute to hardware/software upgrades, network security, and operational documentation.

Key Responsibilities:

  • Lead technical analysis, design, and implementation of Train Control System enhancements.

  • Ensure 24/7 availability of network infrastructure across four Train Control System facilities.

  • Configure, administer, and maintain RedHat and Windows systems.

  • Plan and implement OS, hardware, and software upgrades.

  • Configure and support routers, switches, and firewalls.

  • Develop and monitor network security policies and practices.

  • Create and maintain operating and troubleshooting procedures.

  • Provide emergency system and network support on a 24/7 basis.

  • Interface with external technical specialists for system upgrades and problem resolution.

  • Document network architecture and administrative procedures.

Required Qualifications:

  • Bachelor s degree in Computer Science or equivalent experience.

  • 7+ years of experience with real-time SCADA control systems and operations.

  • 7+ years of experience in networking, workstation, and server OS administration.

  • Strong knowledge of multi-platform system configuration and maintenance.

  • Experience with full lifecycle hardware/software projects.

  • Expertise in network design and maintenance (switches, routers, firewalls).

  • Proficiency in RedHat and Windows security practices.

  • Strong communication skills for technical documentation and presentations.

  • Ability to collaborate with diverse, non-technical stakeholders.

  • General knowledge of railroad operations, signaling, and electrification concepts.

Preferred Qualifications:

  • Master s degree in Computer Science or related field.

  • 10+ years of experience in SCADA systems and multi-platform environments.

Work Environment:

  • Occasional overnight and weekend work for maintenance or upgrades.

  • Scheduled on-call duty during peak or critical periods.

  • High-pressure response to emergency situations.

  • Up to 25% travel required.

***Lumen and / or its clients will not provide equipment (Laptop, monitor, etc.) to the selected contractor. The contractor must have their own equipment. Access to a virtual desktop set up (software) will be provided by Lumen s client, allowing the user access to the required systems and technology.***


Lumen Solutions Group Inc. is an Equal Opportunity Employer and does not discriminate in employment on the basis of Minority/Gender/Disability/Religion/LGBTQI/Age/Veterans.

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