Top 20 Computer Network Architects Jobs in Knoxville, TN

Network Engineer, Sr.
Centrus Energy Corp. —Oak Ridge, TN
- $67,564 - $135,128 a year
- Full-time
- Background check
- Pass drug screening
- System design
Security Architect / Engineering Manager
CGI Group, Inc. —Knoxville, TN
- $63,700 - $139,300 a year
- Azure
- Office
- Bachelor's degree
- Paid parental leave
- Paid holidays
Splunk Detection Engineer
Boston Government Services, LLC —Oak Ridge, TN
- Full-time
- Hybrid work
- Mid-level
- Windows
- Analysis skills
- Disability insurance
- Health insurance
Microsoft Dynamics 365 ERP Operations Solution Architect
Crowe —Knoxville, TN
- $103,200 - $210,900 a year
- Full-time
- 7 years
- Azure
- Bachelor's degree
Quick Apply
8h
Software Engineering Specialist Manager
Crowe —Knoxville, TN
- $113,000 - $267,500 a year
- Full-time
- Computer science
- Computer Science
- Software troubleshooting
Quick Apply
2d
ServiceNow ITOM Consulting Manager
Crowe —Knoxville, TN
- $103,200 - $210,900 a year
- Full-time
- Azure
- System design
- 3 years
Quick Apply
1d
Lead Salesforce Consultant and Solution Architect
Crowe —Knoxville, TN
- $135,800 - $286,400 a year
- Full-time
- 5 years
- Bachelor's degree
- Travel
Quick Apply
2d
Microsoft Dynamics 365 Business Applications - Client-Facing Senior Technical Architect
Crowe —Knoxville, TN
- $142,900 - $301,300 a year
- Full-time
- 7 years
- Computer Science
- Mentoring
Quick Apply
1d

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Security Architect / Engineering Manager
CGI Group, Inc. —Knoxville, TN
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Senior Security Engineer, Security Architect
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Network Engineer, Sr.

Centrus Energy Corp. -
Oak Ridge, TN

Apply Now

Job Details

Full-time
$67,564 - $135,128 a year

Qualifications

NIST SP 800-53
Experience working in the energy & utilities sector
Security compliance frameworks implementation
Nuclear facility experience
Information security compliance
Cisco routers/switches implementation
Q Clearance
Regulatory Frameworks (Architecture security)
Supervisory control and data acquisition (SCADA)
IP networking
Network security appliance implementation
Industrial equipment
Network security architecture design
PLC networking
Building automation systems

Full Job Description

Network Engineer / Network Architect (OT / ICS – DOE Energy Sector)

Make an Impact in America’s Energy Future

Are you passionate about building secure, resilient networks that keep critical infrastructure running safely and reliably? Do you thrive in environments where precision, safety, and mission-driven engineering truly matter? If so, we want you on our team.

We’re looking for a talented Network Engineer / Network Architect to help modernize and secure Operational Technology (OT) and Industrial Control System (ICS) environments that support some of the nation’s most critical energy-sector operations. This is a chance to work at the crossroads of advanced engineering, cybersecurity, and national mission support—directly contributing to safe, efficient operations across nuclear, high‑voltage, and facility‑scale systems.

What You’ll Do

Design the OT Networks That Power Critical Operations

Architect secure, segmented OT/ICS networks using the Purdue Model (Levels 0–3)
Develop high‑availability, deterministic designs supporting SCADA, PLCs, DCS, historians, and real‑time automation
Implement secure vendor/remote access pathways aligned to cybersecurity frameworks
Build zoning, conduits, DMZs, and trusted data‑flow architectures for mission operations
Design and support industrial protocol environments (Modbus, DNP3, EtherNet/IP, OPC‑UA, Profinet, IEC 61850, BACnet)

Engineer, Deploy, and Operate OT Infrastructure

Configure and maintain industrial‑grade switches, routers, firewalls, and ruggedized hardware
Support facility systems such as building automation, utilities, power systems, and nuclear/experimental equipment
Maintain diagrams, inventories, IP schemas, and documentation aligned with cybersecurity and configuration controls

Advance OT Cybersecurity & DOE Compliance

Apply NIST 800‑82, NIST 800‑53/171, and ISA/IEC 62443 security controls
Support DOE readiness activities, audits, and assessment documentation
Collaborate with Cybersecurity teams on firewall policies, monitoring, logging, and threat detection
Support vulnerability management while maintaining operational uptime in sensitive environments

Automate, Monitor & Sustain Critical Systems

Build automation workflows (Ansible/Python) where safe and appropriate
Integrate network health and security telemetry using approved OT monitoring platforms (Nozomi, Claroty, Splunk, SolarWinds, ELK/Grafana)
Develop crisp documentation, change‑control packages, and incident response materials

What You Bring

Required:

5–10+ years in network engineering/architecture, including 3+ years supporting OT/ICS in critical infrastructure
Experience with:

– SCADA, historians, PLC/DCS systems
– Industrial protocols such as Modbus, DNP3, EtherNet/IP, OPC‑UA, Profinet
– NIST 800‑82, NIST 800‑53/171, and related frameworks
– Industrial network gear (Cisco IE/Stratix, Hirschmann, Moxa)
– OT firewall/DMZ architecture (Palo Alto, Fortinet, ASA)

Experience in energy, utilities, nuclear, national labs, or similarly high‑security sectors
Strong collaboration with Controls, Facilities, Cybersecurity, and mission support partners

Preferred:

Certifications such as CCNP/CCIE, GICSP, ISA/IEC 62443, CISSP, PCNSE
Experience with OT cybersecurity platforms (Nozomi, Claroty, Dragos)
Background supporting DOE or other highly regulated environments
Familiarity with cyber audits, readiness reviews, and facility safety/security protocols

Work Environment

On‑site role supporting plant‑floor and mission‑critical operations
Occasional 24/7 on‑call participation
Travel to facilities, secured areas, or plant locations as needed
PPE and safety training required
Must be eligible for Q or L clearance

Success in This Role Looks Like

More resilient, visible, and secure OT network operations
Successful execution of Purdue Model and 62443‑aligned segmentation
Clear, consistent configuration‑managed network baselines
Reduced OT network incidents and stronger facility support
Strengthened cybersecurity posture across mission‑critical systems

Pay

Estimated Starting Base Salary Range: $67,564 - $135,128 This position is Bonus eligible. Centrus considers several factors when extending job offers, including but not limited to candidates’ key skills, relevant work experience, and education/training/certifications. While the posted range reflects the anticipated hiring range for this position, compensation above the range may be considered for candidates with exceptional qualifications and directly relevant experience.

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.

This position will require a pre-employment background check and a pre-employment drug test.

Centrus Energy and all subsidiaries shall abide by the applicable legal requirements. We prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities and prohibit discrimination against all individuals based on their race, color, religion, sex, sexual orientation, gender identity or national origin.

This position requires the successful candidate to obtain and maintain a Q security clearance. Candidates for positions requiring a security clearance are required to be tested for the absence of any illegal drug as defined in 10 CFR 707.4 prior to an offer of employment being made. In addition, once employed, employees will become part of a random drug testing program and may also be tested in the event of any incident causing injury or causing damage to property, or if it is determined that there is a reasonable suspicion the employee is under the influence of drugs or alcohol. This position will require preemployment background check on the part of the Company and in order to receive a Q security clearance, a background investigation by the Federal government. Subsequent Federal government reinvestigations may be required.

Centrus Energy Corp. is an Equal Opportunity Employer.

Apply Now

Refine Your Search

Computer Network Architects jobs in Knoxville, TN

Network Engineer, Sr.

Security Architect / Engineering Manager

Splunk Detection Engineer

Microsoft Dynamics 365 ERP Operations Solution Architect

Software Engineering Specialist Manager

ServiceNow ITOM Consulting Manager

Lead Salesforce Consultant and Solution Architect

Microsoft Dynamics 365 Business Applications - Client-Facing Senior Technical Architect

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