Roles and Responsibilities:* Maintains the Train Management & Control (TMAC) and Positive Train Control (PTC) systems with an emphasis on network and Linux Administration.* Configure and maintain Cisco switches (VLANs, Trunks, SPAN ports) and Cisco ASA Firewalls (Site-to-site VPNs, ACLs, and NAT translation).* Write Python code for database maintenance and problem solving/investigation.* Provide support for TMAC/PTC end users.* Flexible to work varied schedules as directed and available to respond on short notice if needed.Education, Experience, and Qualifications:Minimum:* Bachelor’s Degree in Computer Science, Electrical Engineering, or related area, from US Department of Education, accredited college, or university.* One (1) year of closely related experience can be substituted for each year of education required.* Experience with bare-metal hypervisors (VMWare ESXi a plus)* Experience with OpenVPN* Experience with LAMP stacks* Familiarity with industrial control protocols (Modbus, DNP3)* Any working knowledge of railroad operations and railroad signaling systems Knowledge and Skills:Essential:* CCNA, CompTIA Linux+* Strong Python skills* SQL database administration experience (Oracle)At NJ Transit you will enjoy a competitive salary and excellent benefits package:* Comprehensive Family Health Insurance - * Medical, Prescription, Dental, Vision * Flexible Spending Account * Life Insurance * Paid Leave * Tuition Assistance * Pre-Tax Commuter Benefits Plan* Retirement Plans* 401(a) - Retirement plan with a 6% employer contribution* 401(k) - Retirement saving plan with up to an 3% company match* 457(b) - Deferred Savings PlanAt NJ TRANSIT, diversity and inclusivity are vital to our success as are committed to hiring individuals from diverse backgrounds, experiences, abilities, and veteran status. As an Equal Opportunity Employer, we encourage all qualified applicants to apply and join our team. Learn more about NJ TRANSIT! Sign up to receive an invitation to our next live information session at WWW.NJTRANSIT.COM/BEST