Senior System Integrator Engineer (TS/SCI)

Vexterra Group is currently searching for a Senior Systems Integrator Engineer to provide the following systems support in Reston VA or Bethesda, MD office.

DUTIES

Perform Linux builds, installs, configuration, administration, and troubleshooting of both Linux and Windows platforms to include but not limited to base configuration, security and system patching, performance monitoring, etc. Provide O/S hardening (STIG, OpenSCAP, ACAS) and system patching. Develop server builds for virtual and physical environments. Manage, maintain, configure, and deploy system integration tools such as Kubernetes, Rancher, Helm. Support management and integration of DevOps tools such as Jenkins. Deploy, operate, diagnose, and maintain containerized (Docker) microservices across orchestrated (Kubernetes) environments. Maintain and orchestrate services and procedures for a big data pipeline which includes Kafka, Elasticsearch, and several in‑house written Python/Java running on Kubernetes. Develop scripts to monitor and check health of the deployed pipeline. Maintain and develop DevOps automation using tools (e.g., Saltstack, Ansible, Chef, Puppet). Design, develop, and support scalable, redundant infrastructure to include physical and virtualized environments. Set up administrator and service accounts, maintain system documentation, tune system performance, install system wide software, validate and implement critical system patches, and allocate mass storage space. Improve existing infrastructure to incorporate latest technology best practices and cross application integrations. Participate as needed in all phases of software development with emphasis on the planning, analysis, integration, and documentation phases. Manage the code transfer and modification. Conduct automated unit and system integration tests to identify and provide feedback on failed modules and components. Participate in code design reviews and updates. Support CM activities. Administer system‑to‑system data transfer and integration process.

REQUIREMENTS

A Bachelor's Degree in Information Technology, or a closely related discipline. At least 6 years of relevant professional experience. Must have an active TS/SCI with Counterintelligence Poly. Experience in system integrations testing through a full system development life cycle, including implementing test plans, test cases and test processes. Experience with security requirements derivation. Experience documenting test results for corrective actions, reporting and audits. Excellent verbal and written communication skills. Ability to work in a team and also a self‑starter who can work on their own. Expertise in configuration, administration, and troubleshooting of Linux (RHEL/CentOS, Ubuntu), including kernel panic recovery, configuring SSSD, AIDE, SELinux, auditd, and O/S hardening – STIG, OpenSCAP, ACAS. Highly proficient with patching: yum repositories, APT repositories. Highly proficient with server builds: virtual and physical. Experience with installing and deploying DevOps tools, examples could include Chef, Puppet, Git, Docker, Jenkins, Ansible, Salt, etc. Knowledge of Atlassian software such as JIRA, JIRA Service Desk, Confluence, Bitbucket, HipChat, etc. DoD 8570 IAT II Certification (e.g., Security+).

PREFERRED SKILLS

Kubernetes, Ansible, Puppet, Salt, Linux, Git, Python, Elasticsearch, Logstash, IPA, AWS, OpenStack, Java, Kafka, Hadoop, etc. Experience establishing large computer clusters. Experience in continuous configuration automation (CCA) methods for providing a flexible, programmatic platform for deploying and managing the configuration of infrastructure and application resources. Experience applying both agent‑based and agentless (e.g., SSH) methods to event‑driven orchestration and remote execution for configuration management. Experience applying automated configuration management and deployment tools (e.g., Puppet, Chef, Ansible, Salt) for configuration automation, cloud control, and event‑driven orchestration. #J-18808-Ljbffr Vexterra Group