Senior OT Cybersecurity Engineer

ZipStaff•Washington, DC

3d•Onsite

About The Position

ZipStaff is hiring a Senior OT Cybersecurity Engineer for a major U.S. passenger rail transportation organization based in Washington, DC. The role supports a critical infrastructure modernization and fleet monitoring initiative, with hands-on responsibility for network segmentation, DMZ construction, and hardening operational technology infrastructure in line with TSA Security Directives. The position is an onsite, 12-month W2 contract.

Requirements

At least 8 years of cybersecurity or network engineering experience focused on OT, ICS, SCADA, or critical infrastructure such as transit, utilities, energy, or heavy industry.
Hands-on experience designing and deploying network segmentation, firewalls (Palo Alto or Cisco), and DMZ architectures in operational networks.
Deep knowledge of OT network protocols and industrial networking standards.
Solid understanding of TSA Security Directives and NIST SP 800-82 / IEC 62443.
Strong technical communication skills.

Nice To Haves

SAFe Agile or Scrum experience.

Responsibilities

Implement network segmentation and secure DMZs to isolate OT, SCADA, and ICS environments from enterprise IT.
Deploy and configure firewalls, network security architecture, and boundary controls across transit and fleet monitoring infrastructure.
Remediate vulnerabilities to meet TSA Rail Security Directives, NIST SP 800-82, and IEC 62443.
Secure network connectivity for fleet monitoring systems across transit and wayside assets.
Collaborate with network engineering and deployment teams to meet infrastructure security milestones.
Attend quarterly in-person PI planning sessions in the Northeast Corridor.