CT Systems Engineer

Reach out to our recruiting team for more information on our current openings or joining the Probity team.

PLEASE NOTE:

This position requires an ACTIVE Top Secret/SCI Clearance. To be considered for this position, you MUST have an ACTIVE Clearance Level of Top Secret/SCI

Position Code:07-SE0402-1

Location
:
Tysons or Warrenton

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, Dev Sec Ops , information systems security, and data teams while maintaining ownership of system reliability, performance, scalability, and security.

• 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

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)
  • Container platforms (e.g., Kubernetes, Docker)
  • Linux (Redhat, CentOS) operating systems (administration, hardening, automation)
  • idAM – Public Key Infrastructure (PKI) hands‑on for AuthN and AuthZ
• 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 No
    
    SQL databases – relational (e.g., Oracle, Postgre
    
    SQL, MySQL, SQL Server) and No
    
    SQL (e.g., Mongo
    
    DB, Cassandra, Dynamo
    
    DB, Redis) databases
  • Web services, APIs, and middleware
  • Software development lifecycle (SDLC) fundamentals
  • Event‑based messaging systems (e.g., SQS, SNS, Rabbit
    
    MQ)
• Infrastructure as Code – Scripting & Automation:
  Python, Bash, Power Shell, Terraform, Ansible, or Cloud Formation
• Configuration management and scripting (e.g., Power Shell, Bash, Python, etc.)
• CI/CD integration with infrastructure and platforms (e.g., Jenkins, Git Lab CI/CD, Git Hub Actions, Git Ops, ArgoCD)
• Security best practices and system hardening
• Monitoring & Incident Response:
  Proficiency with tools like Prometheus, Grafana, Splunk, ELK Stack, Cloud Watch
• Ability to create:
  • As‑is architecture documentation
  • To‑be architecture and detailed engineering designs
  • Implementation and migration plans

• Observability and monitoring tools (e.g., logging, metrics, tracing)
• Zero Trust and modern security architectures
• Data analytics, AI/ML platform exposure
• Experience supporting production or mission‑critical environments
• Relevant certifications (e.g., cloud, systems, security, or architecture)
• Knowledge of machine learning platforms (e.g., Tensor Flow, PyTorch, Sage Maker)
• Familiarity with big data ecosystems (e.g., Hadoop, Databricks, Snowflake, Google, Big Query)
• Strong background in ITIL processes and agile methodologies

• 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
• Work with the System Architect and Cloud Architect to create the detail 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 Dev Ops and Dev Sec Ops  pipelines
• Troubleshoot complex, cross‑stack issues spanning infrastructure, platforms, and applications
• Collaborate effectively with:
  • Infrastructure & Platform…