Haystack
← Back to Jobs
Technology

Cybersecurity Analyst with OT and IT experience

Unison Systems, IncLos Angeles, CA🇺🇸United StatesPosted 5 Jul 2026

Quick Overview

Salary
$100k - $130k/yr
Work Type
On Site
Level
Mid Senior

Job Description

Cybersecurity Analyst with OT and IT experience

Job Type: Direct Hire

Location: Downtown Los Angeles, CA

Work Setting: Hybrid (3 days on-site)

Rate: $100,000-$130,000 annually, based upon experience

Position Summary

Unison Systems is looking for a skilled Cybersecurity Analyst with OT and IT experience for our client located in Los Angeles, CA. Our client is one of the nation''s largest transportation agencies, operating bus and rail lines, and is seeking an associate-level analyst to work between its IT (information technology) and OT (operational technology) departments. In this technical, client-facing role, you will analyze and protect systems, networks, and data across the enterprise while collaborating with engineers, stakeholders, and security champions. This position offers strong growth opportunity within the client''s Security & Safety team.

Key Responsibilities

  • Support security assessments of technology systems and recommend changes to ensure adherence to standards, policies, guidelines, strategies, and security best practices.
  • Generate, gather, and track security metrics, develop scorecards for those metrics, and communicate results to leadership.
  • Participate in planning sessions related to projects or new technologies to drive process improvement within the functional area.
  • Build relationships with engineers, stakeholders, and security champions to incorporate security principles into engineering design and deployments.
  • Research and learn new tactics, techniques, and procedures (TTPs) in public and closed forums, and work with colleagues to assess risk and implement/validate controls.
  • Secure diverse LAN, WAN, VPN, and wireless environments, applying a solid understanding of the TCP/IP stack and ICS/SCADA cybersecurity controls and concerns.
  • Develop and update technical documentation, including network architecture text and diagrams, security plan controls, and risk assessments.
  • Support the evaluation and recommendation of hardware and software systems that provide security functions.
  • Investigate Intrusion Detection System (IDS) alerts and support incident management, forensic investigation, response, and reporting.

Required Qualifications

  • Bachelor''s Degree in Computer Science, Information Systems, Cybersecurity, Engineering, or a related field, plus 1+ years of relevant experience.
  • 1+ years of cybersecurity experience in the Operational Technology (OT) field, with familiarity with Homeland Security requirements for compliance.
  • 1+ years of cybersecurity experience with working knowledge of OT network systems, including Remote Terminal Units (RTU), Programmable Logic Controllers (PLC), interface requirements of Traction Power Substations, Automatic Train Control Systems, and various Rail Communication Systems.
  • Knowledge of SCADA system networks, firewall configuration, local networking, and Cable Transmission System (CTS).
  • Experience with industry-standard information security technologies.
  • Experience performing technical risk and vulnerability assessments.
  • Must have or be willing to obtain a Security+ certification within six months of employment.
  • Excellent customer service, strong communication and interpersonal skills, the ability to work well within an integrated team environment, and a self-motivated approach.

Preferred Qualifications (Nice to Have)

  • Expertise in performing cybersecurity assessments, risk management, governance, and compliance management.
  • Experience working within critical infrastructure systems, specifically rail transport experience.
  • Knowledge of Payment Card Industry (PCI), National Institute of Standards and Technology (NIST), Center for Internet Security (CIS), or International Organization for Standardization (ISO) requirements.
  • Experience working with U.S. Government agencies and security requirements from DHS, CISA, and TSA.
  • Experience with Palo Alto, Darktrace, and Cisco security products.
  • Professional security-related certifications (e.g., Security+, CISM, CCSP).

How to Apply

To submit your résumé, complete a brief candidate profile along with a note about the specific skills and qualifications you have for this role . We review every application and respond to qualified candidates promptly, so tell us why you’re a fit!

About Unison Systems

Unison Systems is a national IT & Engineering Services firm that delivers secure, innovative technology solutions and resources for our clients ranging from the Fortune 500 to the U.S. Navy. We bring together the strongest talent and tools in the business to solve complex problems and build solutions that make a measurable impact. At Unison, we invest in our people, foster a collaborative culture, and give our team the opportunity to learn and grow their careers. Unison is an equal opportunity employer. We are committed to creating an inclusive environment for all employees, and we do not discriminate on the basis of race, color, religion, sex, national origin, disability, or veteran status.

Skills

TCP/IP

Similar jobs