**Req ID:** RQ214025 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** None **Public Trust/Other Required:** BI Full 6C (T4) **Job Family:** IT Infrastructure and Operations **Skills:** Linux,Structured Query Language (SQL),System Administration **Experience:** 3 + years of related experience **US Citizenship Required:** Yes **Job Description:** GDIT has a requirement for an experienced **Linux** **Systems Administrator Senior** to join our **Scientific Modeling, Application, Visualization, Computational Science, Software, and Statistical Support (SMAVCS4) Team** to support the **Environmental Protection Agency** . The role will support the **Center for Computational Toxicology & Exposure (CCTE)** , a scientific organization working to support Agency decisions by providing solutions-driven research to rapidly evaluate the potential human health and environmental risks due to exposures to environmental chemicals and ensure the integrity of the freshwater environment and its capacity to support human well-being. We are seeking an experienced **Linux** **Systems Administrator Senior** to join our team to provide dedicated support for the advancement of **CCTE** code level developers in their creation of public application that service the scientific community. **MAJOR RESPONSIBILITIES:** Configuring and maintaining the networked computer system, including hardware, system software, and applications. + Ensuring data is stored securely and backed up regularly + Diagnosing and resolving hardware, software, networking, and system issues when they arise + Replacing and upgrading defective or outdated components as necessary + Monitoring system performance to ensure everything runs smoothly and securely + Hardware sizing, Landscape Architecture and Storage planning + Planning and scheduling RHEL server upgrade/migration and Servers downtime + Planning and scheduling Physical 2 Virtual (P2V) migration + Installing and upgrading Atlassian Tools (Jira/Bitbucket/Confluence and Bamboo) + Atlassian tools system migration and Database migration to PostgreSQL database + Creating, updating, and organizing technical documentation and knowledge base for the team and other departments **QUALIFICATIONS:** **_Education:_** + Technical Training, Certification(s) or Degree required + BA/BS in Information Systems, Information Technology, or equivalent experience **_Experience:_** + 3+ years of related experience in professional IT required, 4-6+ years _strongly preferred_ **Required Skills:** + Working closely with Functional and Technical teams for **OS upgrade (RHEL 6.x,7.x to RHEL8.x, and RHEL9.x)** and Windows Server + Experienced in administering server-side technology and networked computing systems + Experienced in remediation of computing systems from **_Nessus scanning tool_** **.** + Familiarity with SQL PostgreSQL, and Mongo database operations + _Familiarity_ **_Atlassian product suite_** _and its operations_ + _Previous experience with_ **_Intellj, Postman, VSCode, Node and ChemSketch_** + _Familiarity with_ **_Docker container_** _operations_ + Familiarity with application using for event monitoring and alerting tool to maintain server uptime, log capturing and security events. + Requestion DigiCert’s and installing the **SSL** certificates from DigiCert’s **_Beneficial:_** + Experience working on Federal Sector Contracts + Professional Certification(s) + Familiarity with DevOps, ITIL Agile processes **CLEARANCE REQUIREMENTS:** + **Security Clearance Level:** must be able to obtain EPA Public Trust Level 4 + **US Citizenship required** **GDIT IS YOUR PLACE** _At GDIT, the mission is our purpose, and our people are at the center of everything we do._ + **Growth:** AI-powered career tool that identifies career steps and learning opportunities + **Support:** An internal mobility team focused on helping you achieve your career goals + **Rewards:** Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off + **Flexibility:** Full-flex work week to own your priorities at work and at home + **Community:** Award-winning culture of innovation and a military-friendly workplace **OWN YOUR OPPORTUNITY** Explore a career in software development at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your dedication to advancing innovation. The likely salary range for this position is $96,569 - $130,651. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. GDIT typically provides new employees with 15 days of paid leave per calendar year to be used for vacations, personal business, and illness and an additional 10 paid holidays per year. Paid leave and paid holidays are prorated based on the employee’s date of hire. The GDIT Paid Family Leave program provides a total of up to 160 hours of paid leave in a rolling 12 month period for eligible employees. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. Join our Talent Community to stay up to date on our career opportunities and events at https://gdit.com/tc. Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans