Systems Engineer - TS​/SCI w​/Poly

Req

RQ220589

Regular

None

None

IT Infrastructure and Operations

Complex Systems, Dev Ops, Software Systems Engineering

10 + years of related experience

Yes

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.

• 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 Dev Ops/Dev Sec Ops  pipelines
• Troubleshoot complex, cross‑domain issues
• Collaborate with infrastructure, platform, software, Dev Ops, 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

• 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 & No
  
  SQL 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, Power Shell, Cloud Formation)
• CI/CD tools (Jenkins, Git Lab CI/CD, Git Hub Actions, ArgoCD)
• Security best practices and system hardening
• Monitoring/observability tools (Prometheus, Grafana, Splunk, ELK, Cloud Watch)
• Ability to produce “as‑is” and “to‑be” architectures plus implementation/migration plans

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

• 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

• 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

The likely salary range for this position is $162,037 - $219,227. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Our benefits package for all US‑based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post‑tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.

To ensure our employees are able to protect their income, other offerings such as short and long‑term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees value most.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans