On-Site Operations & Systems Engineer (TS/SCI)

Sealing Technologies, a Parsons Company; Maryland; On-site; USD 110,000 - 150,000; Full time

Job summary

Sealing Technologies, a Parsons Company, seeks an Operational Support Engineer/Systems Engineer to deliver mission-focused technical and operational support for the customer environment on site. You will ensure systems remain secure, functional, and optimized for real-time mission execution, performing validation, troubleshooting, and testing as needed.

In this role you will coordinate with cross-functional teams, maintain SOPs and runbooks, document incident details and resolutions, and support

Qualifications

• 6+ years of experience in systems, network, or operational engineering.
• Strong knowledge of Windows, Linux and virtualized environments.
• Proficient in network troubleshooting, log analysis, and validation.
• Excellent customer service and communication skills.
• Ability to obtain TS/SCI clearance and travel <15%.

Responsibilities

• Provides direct operational engineering support to customers and site operations.
• Responds to real-time incidents, performs diagnostics, and restores services.
• Coordinates with network, systems, and software engineers for alignment and secure configurations.
• Maintains operational documentation including logs, runbooks, and after-action reports.
• Tests new software tools and site service updates in operational environments.
• Performs tier-3 support to isolate and resolve hardware, software, or network issues.
• Documents incident details, root cause, and resolutions per processes.
• Supports escalation to specialized engineering teams or vendors as needed.
• Maintains records of operational activities, incidents, and configuration changes.
• Develops and updates SOPs, test guides, and turnover documentation.
• Participates in readiness reviews, after-action briefings, and process improvement meetings.
• Supports deployment and connectivity of site services across nodes.
• Evaluates and integrates emerging technologies to meet customer requirements.

Skills

Windows

Linux

Virtualization

Network troubleshooting

Log analysis

Operational validation

Customer service

Security clearance

Travel readiness

Tools

Cyber Defense software

Linux CLI

Job description

Sealing Technologies, a Parsons Company, seeks an Operational Support Engineer/Systems Engineer to deliver mission-focused technical and operational support for the customer environment on site. You will ensure systems remain secure, functional, and optimized for real-time mission execution, performing validation, troubleshooting, and testing as needed.

In this role you will coordinate with cross-functional teams, maintain SOPs and runbooks, document incident details and resolutions, and support