Senior Enterprise System Engineer

• Architecture, Design & Innovation
• Design, configure, and maintain robust enterprise-level architectures, across multiple clouds, and impact levels (IL5/6)
• Design and deploy flexible, secure enterprise solutions that support continuous research, development, and DevSecOps.
• Advise and assist with network planning for long-term initiatives including DODNet integration, facility projects, and the Next Generation Environment (NGE)
• Maintain and secure enterprise-level Zero Trust services across classification and cloud boundaries
• Develop innovation roadmaps aligned with mission goals and emerging technologies.
• Security, DevSecOps & Compliance
• Engineer RDT&E network/systems security architecture in compliance with NIST 800-series, DoW RMF, DISA STIGs, and cybersecurity best practices.
• Implement DevSecOps pipelines to automate configuration, security scans, and CI/CD deployments.
• Manage ATO package development and collaborate with ISSMs and cybersecurity stakeholders.
• Integrate identity management and single sign-on solutions across enclaves and hybrid environments.
• System Engineering, Virtualization & Cloud Integration
• Deploy and maintain hybrid cloud services and virtualization platforms (e.g., VMware, AWS, Azure).
• Design and manage storage (SAN, EFS, EBS), automation (Terraform, Packer, Ansible), and orchestration (Kubernetes, Docker).
• Enable seamless connectivity between test systems, cloud resources, and virtual desktops.
• Monitoring, Tooling & Documentation
• Monitor system and network performance using platforms like OpManager, ManageEngine, and custom dashboards.
• Document architectures, procedures, and system configurations with tools like Lucidchart, Visio, and Confluence.
• Provide knowledge transfer, mentorship, and technical guidance to engineers and stakeholders.

• U.S. Citizenship
• Master's degree in Computer Science or related field. Additional 4 years of experience with an applicable bachelor's degree may be considered in lieu of MS
• 8 years in network engineering, architecture, or R&D infrastructure-ideally within DoW environments.
• DoW 8570 IAM Level II compliant, to include certifications: Security+
• Experience with scripting along with experience in Infrastructure as Code (Terraform, Ansible) and DevOps pipeline implementation
• Familiarity with RMF, ATO documentation, and enclave compliance management.
• Active DoW Top Secret clearance
• Eligible for SAP access; willingness to complete CI polygraph.

• 10 years' experience in network engineering, architecture, or R&D infrastructure-ideally within DoW environments preferred.
• DoW 8570 IAM Level I compliant, to include certifications: Network+, CCNA, and/or CCNP preferred.
• Scripting languages Python, Bash, or Go preferred

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  Interesting Work:
  
  
  
  Our co-workers support some of the most important and critical programs to our national defense and security.
  
  
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  Values:
  
  
  
  Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.
  
  
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  100% Employee Owned:
  
  
  
  We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.
  
  
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  Great Benefits - Most Full-Time Staff Are Eligible for:
  
  
  




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  Starting PTO accrual of 20 days PTO/year + 10 holidays/year
  
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  Flexible schedules
  
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  6% 401k match with immediate vesting up to $9k annually
  
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  Semi-annual bonus eligibility (July and December)
  
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  Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
  
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  Up to $10,000 in annual educational reimbursement
  
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  Other company funded benefits, like life and disability insurance
  
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  Optional zero deductible Blue Cross/Blue Shield health insurance plan
  




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  Track Record of Success:
  
  
  
  We have grown every year since our founding in 1993.
  
  

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit www.mtsi-va.com