Senior Systems Engineer - Platform/Infrastructure (Ci Polygraph)

NorthHill Technology•Sterling, VA

7d•Onsite

About The Position

NorthHill Technology Resources is hiring a Senior Systems Engineer – Platform/Infrastructure for a direct-hire role with a fast-growing Federal Integrator supporting a federal program in Sterling, Virginia. The engineer will support a visible technical program developing a Model Based Systems Engineering (MBSE) cloud platform for collecting, managing, and analyzing digital engineering information. The platform supports a seamless digital thread, tool interoperability, and data structures suitable for AI applications. The program delivers engineering services for Linux- and Windows-based cloud infrastructure and enterprise computing environments, including endpoint devices, cloud services, virtualized applications, and storage systems. It uses modern application technologies, including containerized solutions with orchestrated workflows, and a mix of open-source, GOTS, and COTS software targeting cloud-native constructs. The environment emphasizes secure-by-default configuration, Infrastructure as Code, governance policies, Agile workflows, and DevSecOps principles. The role focuses on configuring, deploying, and maintaining infrastructure tools and COTS applications as Infrastructure as Code and Applications as Code, while delivering secure, responsive, customer-oriented solutions.

Requirements

At least 10 years of relevant experience.
Bachelor’s or master’s degree in a STEM field.
Active TS/SCI clearance with CI Polygraph; FS Polygraph is also accepted.
Meet DoDD 8140 requirements at a minimum, including Security+ CE certification.
Expertise working with Linux platforms and COTS applications in Linux cloud environments.
Ability to demonstrate solid engineering rigor.
Strong troubleshooting and solutioning skills, including investigating log files to identify root causes.
Experience with cloud architecture and system design.
Experience working with relational and/or non-relational databases such as PostgreSQL, MySQL, or MongoDB.
Experience architecting or integrating workflow, case, ticketing, or automation platforms such as ServiceNow or custom-built systems.
Knowledge of IdAM requirements and technologies, including Active Directory, SAML, OpenLDAP, OAuth 2.0, and/or OIDC.
Demonstrated experience with system testing and validation.
Strong documentation skills.
Experience and comfort with DevOps tooling such as Ansible, Terraform, Jenkins, and GitLab.
Familiarity with containerized development environments such as Rancher and Kubernetes.
Excellent written and verbal communication skills, including the ability to clearly and succinctly describe complex issues.

Responsibilities

Provide platform and infrastructure technical services and expertise in systems, technical infrastructure, tools, modeling, external interfaces, and other technical areas.
Design, configure, and deploy platform infrastructure and applications in a cloud-based environment, ensuring performant environments.
Maintain COTS applications in a cloud-based environment.
Work with internal engineering resources and customer end-users to design and enhance supported application user interfaces, maintaining responsive designs that accommodate technical and functional requirements.
Support operations, including root-cause identification, remediation, and documentation such as user guides, how-to guides, and infrastructure diagrams.
Work with clients and cross-functional departments on technical issues, including software system troubleshooting and maintenance, and communicate project status.
Prepare comprehensive test plans; test new features and services; and fix bugs.
Configure IdAM, Active Directory, and LDAP resources for platforms and applications.
Prepare technical presentations for government and senior leadership.
Work effectively in a team environment across Linux and Windows infrastructure.
Communicate effectively, in writing and verbally, with technical and non-technical colleagues, management, and customers.
Apply robust troubleshooting skills and sound engineering rigor, including configuration management and testing.
Develop and engineer as part of an Agile scrum team.