Sr. Systems Engineer Linux

Job Title: Sr. Systems Engineer – LinuxLocation: Reston, VA (Hybrid – 3x/Week)Salary: DOE + full benefitsClearance: Active Public Trust (or ability to obtain)OverviewTechSur Solutions is a digital services company whose mission is to enable digital transformation for our customers to improve quality and efficiency. Based in the DC metropolitan area, TechSur specializes in advanced cloud services, modernization for both IT structures and applications, leveraging Agile development, and Data Analytics. Since we were formed in August of 2016, we have supported multiple impactful and exciting government programs.Job SummaryWe are seeking an experienced Sr. Systems Engineer – Linux with 8+ years of hands-on experience in managing enterprise IT infrastructure, Linux systems, and cloud environments. The ideal candidate will have strong expertise in RHEL administration, automation using Ansible, cloud platforms (AWS, Azure), and application server management. This role involves close collaboration with clients, application teams, and cloud engineers to ensure high availability, performance, and security of systems.Key ResponsibilitiesMaintain and support IT infrastructure including server hardware and Linux operating systemsPerform installation, configuration, patching, and upgrades of Linux OS (RHEL 7, 8, 9)Install, configure, and manage middleware components such as Apache, Tomcat, JBOSS, WebSphereDevelop and maintain Ansible playbooks for OS upgrades (RHEL 7 to RHEL 8), OS hardening, and automation tasksExperience with Ansible Tower / AWX for configuration management and orchestrationBuild and manage virtual machines in Azure Cloud, including mobility and services migration tool installationProvide guidance and implementation support for OpenShift and Azure cloud environmentsInteract with clients to resolve system, application, and infrastructure-related issuesAnalyze application performance and ensure availability and performance objectives are met using monitoring and performance tools (AWS)Lead and contribute to Oracle database migration (11g to 12c) using automated deployment toolsMigrate web applications from WebSphere 7 to Tomcat 8, including deployment to AWS cloudUpgrade and manage DevOps and CI/CD tools such as Ansible, Puppet, Jenkins, OpenShift, AWS CodeDeployDevelop AWS CloudFormation templates to automate EC2 provisioning, software installation, and service startupDeploy and manage application updates across different versions on JBOSS and Tomcat environmentsEnsure system security, compliance, and best practices across on-prem and cloud platformsRequired Skills & Qualifications8+ years of experience as a Linux Systems Engineer / AdministratorStrong expertise in RHEL (7, 8, 9) administrationHands-on experience with Ansible Automation and Ansible TowerExperience with AWS and Azure cloud platformsKnowledge of OpenShift container platformStrong understanding of application servers: Apache, Tomcat, JBOSS, WebSphereExperience with cloud migrations and application modernizationFamiliarity with CI/CD and DevOps toolsStrong troubleshooting and client communication skillsEducationBachelor’s degree in information technology, Computer Science, or related field (preferred)