Cloud Network Architect/Engineer - Senior

• Design and maintain secure cloud network architectures supporting mission systems operating across multiple AWS environments, security classification levels, and Special Access Program (SAP) enclaves.
• Architect network connectivity between cloud, on-premises, tactical, and enterprise environments while ensuring secure movement of mission data across multiple security domains.
• Develop networking solutions that support both Red and Black network architectures while maintaining appropriate separation, protection, and accreditation requirements.
• Design and implement secure multi-domain networking solutions that enable mission applications to access data while complying with DoW Cross Domain Solution (CDS) requirements and security policies.
• Collaborate with enterprise cloud providers and government organizations to integrate mission capabilities into existing DoD cloud ecosystems and DevSecOps Platform-as-a-Service (PaaS) environments rather than duplicating infrastructure.
• Develop cloud networking strategies supporting hybrid and multi-cloud architectures while enabling interoperability across enterprise services.
• Design secure connectivity utilizing technologies including AWS Transit Gateway, Virtual Private Cloud (VPC), Direct Connect, VPN, software-defined networking (SDN), network segmentation, and cloud-native networking services.
• Support implementation of Zero Trust Architecture (ZTA) principles through network segmentation, identity-aware networking, least privilege access, and secure service-to-service communications.
• Architect enterprise data aggregation and Security Information and Event Management (SIEM) connectivity across multiple cloud environments to support cyber operations, monitoring, and situational awareness.
• Evaluate cloud networking technologies, enterprise services, and emerging capabilities to improve scalability, resiliency, and mission effectiveness.
• Ensure cloud networking solutions comply with DoD cybersecurity policies, Risk Management Framework (RMF), DISA Security Technical Implementation Guides (STIGs), and applicable reference architectures.
• Support systems engineering activities including architecture development, interface definition, technical reviews, integration planning, and operational transition.
• Develop architecture documentation including network diagrams, interface specifications, implementation roadmaps, and engineering design packages.
• Provide technical guidance to software developers, infrastructure engineers, cybersecurity engineers, and mission system teams regarding cloud networking best practices.
• Support troubleshooting of complex cloud networking, routing, latency, and connectivity issues across enterprise environments.
• Communicate clearly, concisely, and with technical accuracy-oral and written

• 10+ years of experience designing, implementing, or supporting enterprise network architectures.
• Experience designing cloud networking solutions within AWS or other commercial cloud providers.
• Demonstrated experience supporting Department of Defense/War information systems.
• Experience designing secure network architectures supporting multiple security classification levels.
• Knowledge of Red/Black network architecture principles.
• Experience with enterprise routing, switching, firewalls, VPNs, DNS, PKI, load balancing, and network segmentation.
• Experience implementing Zero Trust networking concepts.
• Familiarity with Cross Domain Solutions (CDS).
• Understanding of DoD cybersecurity requirements including RMF, NIST 800-53, DISA STIGs, and DoD Cloud Computing Security Requirements Guide (SRG).

• Experience supporting DoD cloud environments at Secret, Top Secret, or SAP levels.
• Experience integrating with enterprise DevSecOps platforms such as Platform One, Space CAMP, or other DoD enterprise PaaS environments.
• Experience designing hybrid cloud or multi-cloud architectures.
• Familiarity with software-defined networking (SDN) and Infrastructure as Code (IaC).
• Experience integrating enterprise SIEM platforms and cloud log aggregation architectures.
• Knowledge of software development environments supporting Agile and DevSecOps.
• AWS Advanced Networking Specialty, AWS Solutions Architect, Cisco CCNP/CCIE, or comparable cloud networking certifications.

• Computer Engineering, Computer Science, Information Technology, Network Engineering, Cybersecurity. With Bachelor's, minimum 18+ years' experience; with Master's, minimum 10+ years' experience

• Top Secret Clearance with SCI eligibility required

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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