Linux Administrator

T-Rex Solutions is seeking a skilled and experienced Linux Administrator to join our IT Operations supporting the US Department of the Treasury TCloud enterprise cloud development effort. This effort aims to facilitate holistic multi-cloud solutions (AWS, Azure, OCI and GCP) to meet the Department of Treasury’s enterprise-wide infrastructure needs.. The ideal candidate will have extensive experience in managing and maintaining Linux systems across various cloud platforms, including AWS, Azure, Oracle Cloud Infrastructure (OCI), and Google Cloud Platform (GCP). The Linux Administrator will play a key role in ensuring the stability, performance, and security of our multi-cloud environment. Responsibilities: Linux System Administration: Install, configure, and maintain Linux servers (CentOS, Ubuntu, Red Hat, etc.) in both physical and virtual environments. Perform regular system updates, patch management, and kernel upgrades. Cloud Management: Deploy, configure, and manage Linux-based infrastructure in AWS, Azure, OCI, and GCP. Utilize cloud-native tools and services for monitoring, scaling, and automating Linux workloads Automation and Scripting: Develop and maintain automation scripts using Bash, Python, and other relevant scripting languages. Utilize configuration management tools (e.g., Ansible, Puppet, Chef) to automate provisioning and configuration of Linux systems. Monitoring and Optimization: Implement and manage monitoring solutions to ensure high availability and performance of Linux systems. Perform performance tuning and optimization of Linux servers and applications. Security and Compliance: Ensure systems comply with organizational and industry security standards. Conduct regular security audits, vulnerability assessments, and implement remediation strategies. Perform vulnerability remediation and hardening of servers using DISA STIGs (Security Technical Implementation Guides). Backup and Recovery: Implement and manage backup and recovery solutions for Linux environments. Perform regular testing of backup and disaster recovery processes. Collaboration and Support: Work closely with security teams to support application deployment and troubleshooting. Provide Tier 2/3 support for Linux-related incidents and service requests. Participate in on-call rotations Requirements: Must be a US Citizen with the ability to obtain a Public Trust clearance Bachelors degree and four (4) years or more of related experience or Masters and two (2) or more years of related experience. Proven experience managing Linux environments in multiple cloud platforms (AWS, Azure, OCI, GCP). Strong knowledge of Linux operating systems (CentOS, Ubuntu, Red Hat). Experience with cloud services and tools from AWS (EC2, S3, VPC), Azure (VMs, Blob Storage, Virtual Network), OCI (Compute, Block Volumes, Networking), and GCP (Compute Engine, Cloud Storage, VPC). Proficiency in scripting languages (Bash, Python). Familiarity with configuration management tools (Ansible Core/Tower/AAP/Galaxy, Puppet, Chef). Familiarity with Red Hat Satellite server including setup of content views to define and manage the lifecycle of content (such as RPM packages, container images, Puppet modules, and Ansible roles) Experience with monitoring tools (e.g. Prometheus, Grafana, CloudWatch, Azure Monitor). Knowledge of security best practices and compliance requirements (e.g. HIPAA, SOC 2, ISO 27001). Experience performing vulnerability remediation and hardening of servers using DISA STIGs. Desired: Certifications in relevant cloud platforms (AWS Certified Solutions Architect, Microsoft Certified: Azure Administrator, Oracle Cloud Infrastructure Architect Associate, Google Professional Cloud Architect). Experience with containerization technologies (Docker, Kubernetes). Experience with CI/CD pipelines and DevOps practices. Experience with IaC (Infrastructure As Code, Terraform) T-Rex Overview Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering. T-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits. T-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors. In compliance with pay transparency guidelines, the annual base salary range for this position is $75,000 - $112,000. Please note that the salary information is a general guideline only. T-Rex considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as market and business considerations when extending an offer. T-Rex offers a diverse and collaborative work environment, exciting opportunities for professional growth, and generous benefits, including: PTO available to use immediately upon joining (prorated based on start date), paid parental leave, individual and family health, vision, and dental benefits, annual budget for training, professional development and tuition reimbursement, and a 401(k) plan with company match fully vested after 60 days of employment among other benefits. Apply To This Job