Operation Technology Security Engineer (DLA VM Support)

Operation Technology Security Engineer

Location

• Fully Remote, USA.

Citizenship & Clearance

• US Citizenship required
• Active DOD SECRET Clearance or higher

Type

• Future Opportunity: Proposal

Who we are

Horizon Industries Limited (Horizon) is a dynamic IT and Management Consulting firm based in the Washington, DC area. Founded in 1996, Horizon Industries Limited (Horizon) has evolved into a company of highly qualified professionals that provides full-cycle IT Consultant and Management support in both the private and public sectors.

Horizon's culture is based on our core values, and we PRIDE ourselves on a diverse, employee, and family‑centric approach.

What we are looking for

We are currently seeking a Operation Technology Security Engineer for a full‑time, remote position supporting the Defense Logistics Agency (DLA).

Roles and Responsibilities

OPERATIONAL TECHNOLOGY SECURITY ENGINEER

• Performs a variety of routine project tasks applied to specialized information assurance problems with operational technology (OT) systems.
• Tasks involve integration of OT processes or methodologies with information systems to resolve total system problems, or technology problems as they relate to Cybersecurity requirements.
• Analyzes information security requirements.
• Applies analytical and systematic approaches in the resolution of problems of workflow, organization, and planning.
• Provides security engineering support for planning, design, development, testing, demonstration, integration of OT systems.

Minimum Requirements

• Seven (7) years of relevant OT Cybersecurity experience
• Experience with OT communication protocols such as Modbus/TCP, EtherNet/IP, IEC 61850, ICCP, DNP3, BACnet, and similar industrial protocols
• Strong understanding of OT systems including SCADA, ICS, DCS, PLCs, HMIs, RTUs, and field devices
• Knowledge of secure OT network architectures, including segmentation, firewalls, IDS/IPS, and network monitoring solutions
• Understanding of secure remote access technologies and best practices for OT maintenance and monitoring
• Experience managing software and firmware updates for OT devices while minimizing operational disruption
• Proficiency with OT‑relevant cybersecurity frameworks such as NIST CSF, ISA/IEC 62443, and NERC CIP
• Familiarity with DoD cybersecurity requirements including STIGs, TCG configuration guides, IAVMs, and Task Orders
• Experience preparing environments for DoD cybersecurity inspections
• Ability to develop, maintain, and validate cybersecurity artifacts and documentation
• Understanding of compliance requirements for OT environments and industry‑specific regulatory obligations
• Proficiency in conducting vulnerability assessments across networks, databases, applications, and OT/IT systems
• Knowledge of vulnerability scanning and asset visibility tools (ACAS, Nessus, Qualys, Forescout, EyeInspect)
• Updates and tracks POA&M entries by documenting findings, logging remediation actions, and keeping milestone dates current to ensure issues move toward closure
• Experience performing OT‑specific risk assessments, identifying threats, vulnerabilities, and operational impacts
• Ability to recommend risk‑based mitigation strategies tailored to OT constraints
• Familiarity with secure configuration baselines, hardening procedures, and compliance enforcement
• Experience deploying and tuning security monitoring solutions for OT environments, including anomaly detection and threat intelligence integration
• Ability to develop and implement OT‑specific incident response plans
• Knowledge of forensic techniques and tools appropriate for OT systems
• Understanding of patch management workflows and enterprise change management processes
• Ability to build automated workflows for vulnerability remediation, compliance checks, or reporting
• Proficiency with analytical tools such as Microsoft Excel, Access, Power BI, and Power Platform
• Ability to generate clear, accurate, and audit‑ready cybersecurity reports for technical and leadership audiences
• Experience producing analytics and trend reports using data from scanners, configuration tools, and monitoring platforms
• Understanding of vendor and supply chain security practices for OT equipment and services
• Experience bridging IT and OT cybersecurity requirements to ensure aligned policies and protections
• Ability to translate technical findings into actionable recommendations for engineers, operators, and leadership
• Strong research, analytical, and problem‑solving abilities
• Excellent written and verbal communication skills, including briefing senior leaders
• Proven ability to work independently and collaboratively with minimal oversight
• Commitment to staying current on emerging OT threats, vulnerabilities, and best practices
• Required to possess a DOD SECRET Clearance

Certification Requirements

Required Training Certifications In:

• ICS300 or relevant Operational Technology “OT” or Industrial Control System “ICS” Cybersecurity Certifications
• Forescout

DLA Computing Environment

• DLA approved CE (M Account Access)

Current Requirement

• DOD 8570 – IAT 2

Future Requirement

• DOD 8140

Primary Cyber Work Role

• Work Element: Cybersecurity (CS)
• Work Role: 722 – Information Systems Security Manager
• Proficiency Level: Intermediate

Why you will succeed at Horizon

Horizon works at the forefront of new Appian features and development practices and supports its employees in being trained and certified in the latest and greatest. As we continue to expand and grow the Horizon brand around the globe, we want to ensure that our team members are growing with us, as you are a vital part of our success story. This is a great opportunity for us to invest in our employees by supporting them with the right skills and tools to be successful in their careers.

You will find a career map with a focus on someone who wants to specialize in a technical track or a people management track. We will provide you with a series of personal and professional development opportunities to ensure you have the support and tools necessary to grow and achieve your goals. This includes personal career coaching and mentoring opportunities, among other initiatives.

Perks / Why you will love working with us

• Comprehensive benefits package including healthcare (medical, dental, vision, and disability)
• 401(k) program with 100% vesting from day one and employer match after 90 days
• Educational Assistance program
• Student Loan Repayment Program
• Gym Reimbursement Program
• Paid Time Off
• Dynamics: a passionate, multi‑disciplinary team of creative minds to work with, and many more

Equal Employment Opportunity

Horizon is an Equal Employment Opportunity employer, and it is our policy to consider all applicants for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

EOE/Vet/Disabled