Systems Engineer (TS/SCI with Poly Required) with Security Clearance

Job Category: IT Infrastructure and Operations Requisition Number: SYSTE002292 Posting Details

• Posted: September 8, 2026
• Full-Time
• On-site
• Locations Showing 1 location Tysons Corner Tysons Corner, VA, USA Tysons Corner Tysons Corner, VA, USA Warrenton Warrenton, VA, USA Warrenton Warrenton, VA, USA +1 more locationsless locations Job Details Description GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry. At GCI, we solve the hard problems. As a Systems Engineer, a typical day will include the following duties: JOB DESCRIPTION  We are seeking a hands-on Systems Engineer with deep expertise across infrastructure, platforms, and application ecosystem spanning cloud and on-premises environments. This role requires a proven practitioner who can analyze existing (“as-is”) systems and applications, document current state architectures, design future-state solutions, and implement system enhancements or technology transformations end-to-end.  The ideal candidate is a technical leader and achiever who can seamlessly collaborate across infrastructure, platform, application, DevSecOps, information systems security, and data teams while maintaining ownership of system reliability, performance, scalability, and security.  QUALIFICATIONS
• Bachelor’s Degree in Computer Science, IT, or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience
• Minimum ten (10) years of related systems engineering experience  REQUIRED KNOWLEDGE/SKILLS  The candidate must demonstrate hands-on experience in all the following areas:  Infrastructure & Platforms
• Enterprise networking (e.g. routing, switching, firewalls, load balancers, DNS)
• Storage technologies (e.g. SAN, NAS, object storage)
• Virtualization and container platforms (VMware, Hyper-V, Kubernetes, Docker)
• Windows and Linux (Redhat, CentOS) operating systems (administration, hardening, automation)
• Data platforms (HPCC, Hadoop/Cloudera) 

Cloud & On-Prem Technologies

• Cloud platforms (AWS, Azure, and/or GCP)
• Hybrid and on-prem infrastructure design and integration
• Cloud networking, identity, security, and cost optimization 

Data & Application Platforms

• Relational and NoSQL databases – relational (e.g., Oracle, PostgreSQL, MySQL, SQL Server) and NoSQL (e.g., MongoDB, Cassandra, DynamoDB, Redis) databases
• Data platforms (HPCC, Hadoop/Cloudera)
• Data pipelines, and ETL frameworks – with ETL pipelines, Airflow, Kafka, Spark, or similar frameworks
• Web services, APIs, and middleware
• Software development lifecycle (SDLC) fundamentals 

Engineering & Automation

• Infrastructure as Code – Scripting & Automation: Python, Bash, PowerShell, Terraform, Ansible, or CloudFormation
• Configuration management and scripting (PowerShell, Bash, Python, etc.)
• CI/CD integration with infrastructure and platforms (Jenkins, GitLab CI/CD, GitHub Actions, GitOps)
• Security best practices and system hardening
• Monitoring & Incident Response: Proficiency with tools like Prometheus, Grafana, Splunk, ELK Stack, CloudWatch 

Architecture & Design

• Ability to create:
• As-is architecture documentation
• To-be architecture and detailed engineering designs
• Implementation and migration plans  DESIRED SKILLS
• Observability and monitoring tools (logging, metrics, tracing)
• Zero Trust and modern security architectures
• Data analytics, AI/ML platform exposure
• Experience supporting regulated or mission-critical environments
• Relevant certifications (cloud, systems, security, or architecture)
• Knowledge of machine learning platforms (TensorFlow, PyTorch, SageMaker)
• Familiarity with big data ecosystems (Hadoop, Databricks, Snowflake, Google, BigQuery)
• Strong background in ITIL processes and agile methodologies
• Certifications: AWS Solutions Architect / DevOps Engineer, Azure Administrator, Kubernetes CKA/CKAD, ITIL Foundation  KEY RESPONSIBILITIES
• Perform hands-on systems engineering across network, compute, storage, operating systems, middleware, databases, and applications
• Analyze and document as-is infrastructure, platform, and application architectures
• Design to-be architectures and detailed engineering designs for modernization, optimization, and transformation initiatives
• Lead and execute cloud and on-prem system implementations, migrations, and upgrades
• Ensure systems meet availability, scalability, performance, security, and compliance requirements
• Integrate infrastructure and platforms with DevOps and DevSecOps pipelines
• Troubleshoot complex, cross-stack issues spanning infrastructure, platforms, and applications
• Collaborate effectively with:
• Infrastructure & Platform Engineers
• Software Engineers
• DevOps / DevSecOps Engineers
• Data Engineers (ETL)
• Data Modelers, Data Scientists, and Data Analysts
• Produce clear technical documentation, diagrams, standards, and runbooks
• Serve as a technical authority and escalation point for complex system issues
• Communication Skills: Ability to brief executives clearly and translate technical issues into business impact  IDEAL CANDIDATE PROFILE
• Recognized SME with deep, hands-on technical expertise
• Strong systems thinker with the ability to see and engineer across the full stack
• Comfortable operating at both strategic architecture and tactical implementation levels
• Excellent communication and collaboration skills across technical and non-technical teams
• Proven ability to own complex systems from design through production  *A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans   Qualifications Skills Behaviors : Motivations : Education Experience Licenses & Certifications Equal Opportunity Employer