Systems Engineer - TS/SCI w/ Poly

We are seeking a hands-on Systems Engineer with deep, practical experience across infrastructure, platforms, cloud, and application ecosystems. This role suits a technical leader who can analyze current-state environments, design future-state architectures, and execute complex system implementations end‑to‑end.

What You’ll Do:

• Perform full-stack systems engineering across network, compute, storage, OS, middleware, databases, and applications
• Document “as-is” architectures and develop detailed “to-be” designs
• Lead cloud and on‑prem implementations, migrations, upgrades, and modernization initiatives
• Ensure system availability, scalability, performance, security, and compliance
• Integrate systems and platforms with DevOps/DevSecOps pipelines
• Troubleshoot complex, cross-domain issues
• Collaborate with infrastructure, platform, software, DevOps, and data teams
• Produce technical documentation, diagrams, standards, and runbooks
• Serve as an escalation point and technical authority
• Communicate effectively with executives and cross-organizational partners

Required Technical Skills:

• Enterprise networking, firewalls, load balancers, DNS
• SAN/NAS/Object storage
• Kubernetes, Docker
• Linux (RHEL/CentOS) administration, hardening, automation
• PKI and identity management
• Cloud platforms: AWS, Azure, or GCP
• Hybrid and on‑prem integration, cloud networking/security/cost optimization
• Relational & NoSQL databases (Oracle, PostgreSQL, MySQL, SQL Server, MongoDB, Cassandra, DynamoDB, Redis)
• APIs, web services, middleware, SDLC fundamentals
• Event messaging (SQS, SNS, RabbitMQ)
• IaC, automation, and scripting (Terraform, Ansible, Python, Bash, PowerShell, CloudFormation)
• CI/CD tools (Jenkins, GitLab CI/CD, GitHub Actions, ArgoCD)
• Security best practices and system hardening
• Monitoring/observability tools (Prometheus, Grafana, Splunk, ELK, CloudWatch)
• Ability to produce “as-is” and “to-be” architectures plus implementation/migration plans

Preferred Skills:

• Zero Trust architectures
• AI/ML or data platform exposure
• Big data platforms (Hadoop, Databricks, Snowflake, BigQuery)
• Experience supporting mission-critical systems
• ITIL or agile delivery experience
• Cloud, security, or architecture certifications (AWS SA/DevOps, Azure Admin, CKA/CKAD, ITIL)

What You'll Need to Succeed:

• Education: Bachelor’s degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
• Location: Herndon, VA
• Hours: Contract core hours, 9am - 3pm

• Security Clearance: TS/SCI with Polygraph

• US Citizenship Required

GDIT IS YOUR PLACE:

• 401K with company match
• Comprehensive health and wellness packages
• Internal mobility team dedicated to helping you own your career
• Professional growth opportunities including paid education and certifications
• Cutting-edge technology you can learn from
• Rest and recharge with paid vacation and holidays

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