Computer Systems Engineer/Architect

Confidential

Washington, DC, Maryland permanent

Posted: April 9, 2026

Required Skills

Job Description

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

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