Computer Systems Engineer/Architect

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 #J-18808-Ljbffr TENAX Technologies