OSC Technical Solutions · 1 day ago
Principal ICS Cyber Architect
United States
Full-time
Onsite
Senior Level, Lead/Staff
$145K/yr - $216K/yr
10+ years expOSC Technical Solutions is seeking a Principal ICS Cyber Architect responsible for leading the design and evaluation of cybersecurity architectures for nuclear and critical-infrastructure environments. The role involves collaborating with various partners to support cyber decisions, conducting architecture assessments, and mentoring engineers on ICS security principles.
Information Technology & Services
No H1B
U.S. Citizen Only
Responsibilities
Lead the design and evaluation of tiered ICS network architectures, including segmentation boundaries, safety-critical zones, DMZs, and secure telemetry pathways
Develop and document observability models, including log/event flows, historian telemetry, and control-effectiveness evidence pipelines
Define and evaluate one-way data movement solutions (e.g., data diodes / unidirectional gateways) for digital I&C and plant monitoring environments
Analyze system architectures against NRC RG 5.71 (Rev. 1), DG-5075 draft guidance, Part 53 language, and DOE/NIST expectations
Work closely with EPC, operator, and reactor-design partners to support early-phase cyber decisions without disrupting I&C/safety design philosophy
Participate in joint architecture working sessions, design reviews, and concept-of-operations development
Translate evolving regulatory language into design-enablement artifacts, technical recommendations, and defensible documentation
Provide architecture, engineering, and consulting support to existing cyber and infrastructure teams within existing DOE ICS environments
Conduct architecture gap assessments for SMR and other critical infrastructure systems
Evaluate ICS logging, anomaly detection, and monitoring models suitable for air-gapped or diode-restricted environments
Recommend approaches for incident detection/incident response (ID/IR) that are compatible with segmented nuclear or DOE ICS environments
Mentor engineers and analysts on ICS security principles and regulatory expectations
Contribute to the development of OSC TS’s observability and diode testbed environments
Help shape OSC TS service offerings and deliverables for nuclear and critical-infrastructure clients
Perform other duties as appropriate and as assigned
Qualification
Required
Bachelor's degree and 10+ years securing ICS, SCADA, or DCS environments in sectors such as nuclear, DOE, utilities, or other regulated critical infrastructure or equivalent combination of education and experience
Ability to pass a background and drug screening
Must have identification compliant with the Real ID Act at time of hire
Must be able to obtain Department of Energy access badge
Demonstrated experience designing one-way dataflow / cross-domain solutions, segmented architectures, or air-gap-adjacent observability patterns
Experience working with engineering teams on digital I&C, system architecture, or operational technology modernization projects
Ability to write clear architecture documents, diagrams, and security rationales for engineering and regulatory audiences
Strong working knowledge of at least two of the following: NRC RG 5.71 (Rev. 1) or previous revisions, DOE 205.1C / NIST 800-53, NERC CIP (particularly CIP-005, CIP-007, CIP-010), IEC 62443
Proven analytical skills
Expert knowledge of ICS/OT security principles and regulations
Ability to influence without authority
Demonstrated effective decision-making skills
Ability to explain complex ICS security concepts to non-technical stakeholders
Translation of cybersecurity risk into operational and safety-relevant terms
Collaboration with site engineers, operators, regulators, and program leadership
Serving as technical design authority for OT security initiatives
Good interpersonal skills: ability to work effectively and cooperatively with all levels of management and staff, affiliated-company employees as well as outside business associates; exhibits a professional manner in dealing with others
Superior organizational, follow-up, and detail-oriented skills
Make decisions, solve problems, and exercise excellent judgment
Work well under pressure and independently prioritize workload, while working on multiple projects
Ability to research, organize and analyze technical information with particular attention to accuracy and detail
Proficient using Microsoft Office products, such as Word, Excel and PowerPoint, and industry-standard computer software and databases
High degree of sensitivity regarding confidential information
Sufficient fine motor skills for the use of computers, calculators with an ability to withstand repetitive keyboarding for extended periods of time
Visual and communications ability adequate to perform the essential functions of the job
Ability to kneel, bend and twist at the waist on an occasional basis
Ability to reach below shoulder height with regular frequency (desk position) and at or above shoulder height on occasion
Ability to push, pull, carry and lift objects weighing up to 10 pounds on a regular basis, and greater weights on an occasional basis
Ability to travel by vehicle or aircraft, and ability to safely operate a motor vehicle
Preferred
Experience with or exposure to DOE national laboratories, or commercial nuclear sites
Familiarity with SMR concepts, advanced reactor designs, or hybrid nuclear/renewables architectures
Hands-on experience with tools such as historian platforms, OT monitoring platforms (e.g., Nozomi, Dragos, Tenable OT), or ICS protocol telemetry pipelines
Clearance eligibility or existing DOE Q/L clearance
Benefits
Paid holidays
Paid time off
401k with employer match
Dental
Vision
Health insurance plans through the Federal Employee Health Benefits (FEHB) program
Life and disability benefits
Company
OSC Technical Solutions
At OSC Technical Solutions, we deliver secure, resilient, and mission-driven solutions across four core service areas: Software Engineering & PM We modernize legacy systems and develop custom software that enhances performance, streamlines operations, and supports enterprise-wide transformation.
201-500 employees
Funding
Current Stage
Growth StageCompany data provided by crunchbase