TENAX Technologies seeks a Senior Computer Systems Engineer/Architect to support a DoD customer in designing, securing, and modernizing enterprise and mission systems. The role provides technical leadership across systems architecture, AWS cloud environments, cybersecurity (RMF), and infrastructure integration in classified, mission-critical settings.
Key Responsibilities
- Lead design and integration of secure enterprise architectures across on-premises and AWS cloud environments (hybrid/cloud-native)
- Architect and manage AWS services including EC2, S3, VPC, IAM, RDS, CloudWatch, and Lambda, ensuring secure and scalable deployments
- Implement cloud security best practices aligned with DoD Cloud SRG, RMF, and Zero Trust principles
- Perform systems engineering lifecycle activities (requirements, design, integration, testing, sustainment)
- Integrate cybersecurity tools and processes including:
- ACAS (Nessus), HBSS/endpoint security, and SIEM solutions
- STIG/SRG compliance and vulnerability remediation
- Development of ATO artifacts (SSP, SAR, POA&M)
- Design and support DevSecOps pipelines and CI/CD workflows, including automation and Infrastructure as Code (IaC)
- Oversee integration of compute, storage, virtualization (VMware/Hyper-V), identity management (AD/RBAC), and backup solutions
- Provide technical leadership and architecture governance, supporting design reviews, risk assessments, and modernization strategies
- Develop and maintain architecture documentation, system diagrams, and configuration baselines
Required Qualifications
- Active Top Secret clearance with SCI eligibility (TS/SCI preferred)
- Bachelor's degree in a technical field (or equivalent experience)
- 10+ years of experience in systems engineering or architecture
- Experience with:
- AWS cloud services and secure cloud architecture
- DoD RMF and ATO processes
- Enterprise infrastructure (Linux/Windows, virtualization, storage, networking)
- STIG implementation and cybersecurity compliance
Desired Qualifications
- AWS Certified Solutions Architect (Associate or Professional)
- DoD 8570/8140 IAT/IAM Level II certification (e.g., CISSP, CASP+)
- Experience with Zero Trust Architecture, containerization (Docker/Kubernetes), and DevSecOps
- Prior support to DoD/Navy/Army environments (e.g., NAVSEA, NSWCPD, ARL)
Core Competencies
- Enterprise and cloud architecture design
- Cybersecurity integration and compliance
- DevSecOps and automation
- Technical leadership in classified environments
