Argonne is a multidisciplinary science and engineering research center, where “dream teams” of world- class researchers work alongside experts from industry, academia, and other government laboratories to address vital national challenges in clean energy, environment, technology, and national security. Our Argonne Leadership Computing Facility (ALCF) division is seeking an experienced Linux System Administrator to join their team. In this role you can expect to: + Participate in the design, development, and advancement of the high-performance computing (HPC) environment of the ALCF. + Assist with implementation, management, and administration of experimental and production networks. + Contribute ideas to the design and development of new systems and network tools. + Receive on-the-job training and experience with High Performance Computing. + Work in a hybrid environment with 2+ days onsite in Lemont, Illinois; with the ability to work fully onsite if preferred by the applicant. **Position Requirements** Required skills and qualifications: + Knowledge and expertise in Linux systems administration + Experience with installation, management, and use of software such as compilers, resource managers, and web applications + Knowledge and experience in technologies such as TCP/IP and related protocols; networked file systems, including NFS + Knowledge of system administration tools, and languages, such as Ruby, Python, C, and shell scripting + Experience with configuration management technologies, such as SaltStack and Ansible + Effective problem solving skills + Ability to work effectively as a member of a team + Flexibility in handling assignments and working on several projects simultaneously + Knowledge and understanding of how to safely operate within a datacenter, including tasks such as mounting and unmounting server hardware + Ability to handle physical labor of installing racks and servers in a datacenter + Ability to lift up to 20 pounds independently and upwards with additional help from others + Ability to model Argonne’s core values: impact, safety, respect, integrity and teamwork + To perform the essential functions of this position successful applicants must provide proof of U.S. citizenship, which is required to comply with federal regulations and contract. Preferred skills and qualifications: + Knowledge of or experience with Java, such as in support of systems like Jenkins, Kafka, or Spark + Knowledge of parallel and distributed file systems such as Lustre or GPFS, and their associated hardware + Knowledge of HPC networking technologies such as Infiniband and Slingshot + Understanding of MPI, and implementations + Ability to gather site requirements and represent them to design and development teams to find appropriate solutions across multiple sites + Ability to communicate and present ideas, status, design concepts, technical and user documentation, and decision analysis This position can be hired at one of two levels, and the requirements for each are as follows: + PT2: Bachelor's degree and 2+ years of experience, or equivalent + PT3: Bachelor's degree and 4+ years of experience, or a Master's degree and 2+ years of experience, or equivalent **Job Family** Professional Technical (PT) **Job Profile** Systems Integration Admin/Support 2 **Worker Type** Regular **Time Type** Full time _As an equal employment opportunity and affirmative action employer, and in accordance with our core values of impact, safety, respect, integrity and teamwork, Argonne National Laboratory is committed to a diverse and inclusive workplace that fosters collaborative scientific discovery and innovation. In support of this commitment, Argonne encourages minorities, women, veterans and individuals with disabilities to apply for employment. Argonne considers all qualified applicants for employment without regard to age, ancestry, citizenship status, color, disability, gender, gender identity, gender expression, genetic information, marital status, national origin, pregnancy, race, religion, sexual orientation, veteran status or any other characteristic protected by law._ _Argonne employees, and certain guest researchers and contractors, are subject to particular restrictions related to participation in Foreign Government Sponsored or Affiliated Activities, as defined and detailed in United States Department of Energy Order 486.1A. You will be asked to disclose any such participation in the application phase for review by Argonne's Legal Department._ _All Argonne offers of employment are contingent upon a background check that includes an assessment of criminal conviction history conducted on an individualized and case-by-case basis. Please be advised that Argonne positions require upon hire (or may require in the future) for the individual be to obtain a government access authorization that involves additional background check requirements. Failure to obtain or maintain such government access authorization could result in the withdrawal of a job offer or future termination of employment._