Job description

CeLeen, an operating firm of Command Holdings, is seeking a Linux System Administrator - Testbed to support a contract within the Department of Energy. This position would support a critical science and engineering computing environments. The individual will join a fast-paced, dynamic, agile team environment passionate about the delivery of computational engineering services and infrastructure. The ideal candidate is well rounded, having experience with modern systems architectures, development methods, tools, and the underlying infrastructure. We are looking for a self-motivated, driven, problem solver to join our team. Duties and Responsibilities may include but are not limited to: • Design and develop solutions to complex applications problems, system administration issues, or network concerns. • Perform systems management and integration functions. • Apply fundamental concepts, processes, practices, and procedures on technical assignments. • Diagnosing and resolving issues related to system performance, functionality, and security. • Using shell scripting to automate tasks and improve efficiency. • Creating, running and managing Ansible playbooks. • Monitoring system health, performance, and resource utilization, and taking corrective actions as needed. Work Environment: • Moderate noise (i.e. business office with computers, phone and printers) and /or occasional Loud noise (airfield, large equipment). • Ability to sit at a computer terminal for an extended period of time. Physical Demands: • While performing the responsibilities of the job, the employee is required to sit, stand, talk, and hear. • Employee is often required to sit and use their hands and fingers to operate a computer. • Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Travel: • 0-10% / Minimal travel expected: offsites, meetings, training, a conference. CeLeen, an operating firm of Command Holdings, a Pequot company, is a tribally-owned firm providing management consulting services to U.S. government agencies. Pursuant to PL 93-638, as amended, preference will be given to qualified Native Americans and spouses in all phases of employment. At CeLeen, our employees are the embodiment of our success as a firm. Our team is comprised of a tenacious group of professionals located across the globe. It includes military veterans and spouses of active duty troops, former federal employees, policy experts, academics, attorneys, and technical and business experts, all of whom share a strong work ethic and the skills to succeed in both collaborative and independent environments. CeLeen is invested in the long-term success of both our clients and colleagues for the right reasons. Our dedication to putting good government into practice is underpinned by a merit-based culture that measures success by productivity and credibility. CeLeen will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability. Please send your request to the Human Resources Team . CeLeen is committed to equal employment opportunity based on merit. We recruit, employ, train, compensate, and promote without regard to race, religion, color, national origin, age, sex, disability, protected veteran status, or any other basis protected by applicable federal, state, or local law, and in accordance with EO 14173 and Federal Employment Laws: Equal Employment Opportunity and Employee Polygraph Protection Act. CeLeen's Affirmative Action Program is available to any employee or applicant for employment for inspection upon request, to the extent required by federal regulations. The Affirmative Action Program can be accessed during normal business hours by making an appointment with the Human Resources Team . Basic Qualifications • Bachelor's Degree in STEM related field plus 2 years minimum of server experience //OR// 6 years of experience supporting physical and virtual Linux Servers in lieu of a degree. • Must have experience in LINUX Systems Administration. • Experience running RHEL (Red Hat Enterprise Linux) and Ubuntu OS, including installation, configuration, patching and troubleshooting. • Must have practical experience in using command-line tools, managing files and directories, and performing common system administration tasks. • Familiar with core Linux concepts, including user accounts, permissions, file systems, and basic networking. • Experience installing, updating, and troubleshooting software, including applications, services, and tools that are commonly used within government environment. • Strong knowledge of networking fundamentals, including TCP/IP, DNS, DHCP, and firewall configuration. The ability to troubleshoot network issues and ensure secure communication is crucial. • Familiarity with security policies and procedures involving; developing and implementing security policies, procedures, and standards (including those based on NIST guidelines , DFARS , and RMF), as well as including user authentication, access control, and firewalls. • Experience with creating, running and managing Ansible playbooks and other configuration management tools, such as Puppet and Jenkins. • Understanding of Python for automating common system tasks, scripting within the command line. • Must be able to navigate directories, manipulate files, manager users and configure permissions. • Knowledge of cloud platforms, such as AWS and Azure. • Working with other team members and users to resolve problems and improve system performance. • Strong customer service, communication, and documentation skills. • Ability to obtain and maintain a DOE-Q Clearance. • Ability to pass a federal background investigation including fingerprinting. • Must be a U.S. citizen. • Professional proficiency in English is required. • Ability to access federal facilities in compliance with Real ID. More information about Real ID can be found here: https://www.dhs.gov/real-id/about-real-id and at https://www.tsa.gov/travel/security-screening/identification . • Applicants must be currently authorized to work in the United States on a full-time basis. CeLeen will not sponsor applicants for work visas for this position. Preferred Qualifications • Current, active DOE-Q or L Clearance or Active DOD Secret or Top Secret Clearance. • Master's Degree. • 4 years LINUX server experience. • Any applicable certifications regarding RHEL. • CompTIA Security+ certification (or would need to obtain within 6 months of start). • Any applicable certifications involving AWS, or cloud security. Benefits CeLeen offers a competitive benefits plan including: • Health, Dental, and Vision Insurance • Flexible Spending Accounts • Life and Disability Insurance • 401(k) • Paid Time Off • Paid Holidays • Employee Assistance Program • Pet Insurance Eligibility requirements apply.

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