Payroll Analyst supporting payroll operations and system enhancements at Old Republic Title. Serving as a subject matter expert for UKG BI reporting, payroll system upgrades, and process improvement initiatives.
About the role
- Senior Systems Engineer responsible for HPC cluster management and optimization at Rackspace. Collaborating with scientists and handling technical support for high-performance computing.
Responsibilities
- Install, configure, and maintain HPC clusters (hardware, software, operating systems).
- Perform regular updates/patching and manage user accounts and permissions.
- Troubleshoot/resolve hardware or software issues.
- Monitor and analyze system and application performance, identify bottlenecks and implement tuning solutions.
- Manage job scheduling and resource allocation using tools such as Slurm, LSF, Bright Cluster Manager, OpenHPC, and Warewulf.
- Configure Linux networking (TCP/IP, DNS, routing) and HPC interconnects (InfiniBand, Ethernet).
- Implement and maintain large-scale storage and parallel file systems (Lustre, Ceph, GPFS) ensuring data integrity and managing backups.
- Implement security controls and manage authentication services like LDAP and Active Directory.
- Automate deployments and system configurations using tools like Ansible, Terraform, Jenkins, and Git.
- Provide technical support, documentation, and training to researchers and collaborate with scientists and HPC architects.
Requirements
- Bachelor’s degree in Computer Science, Engineering, or a related field (equivalent experience may substitute for degree).
- Minimum of 10 years of systems experience, including at least 5 years working specifically with HPC.
- Strong knowledge of Linux operating systems (e.g., Rocky Linux, Ubuntu) with a fundamental understanding of Linux internals, system administration, and performance tuning.
- Experience building and managing RPM and DEB packages.
- Experience with cluster management tools such as Bright Cluster Manager, OpenHPC stack, or Warewulf.
- Proficiency with job schedulers and resource managers such as Slurm and LSF.
- Strong understanding of Linux networking (e.g., TCP/IP, DNS, routing) and HPC interconnects (e.g., InfiniBand, Ethernet) including performance tuning.
- Knowledge of parallel file systems such as Lustre, Ceph, or GPFS.
- Working knowledge of Linux authentication and directory services such as LDAP and Active Directory.
- Proficiency in scripting languages (e.g., Python, Bash, R) and familiarity with MPI libraries for parallel and distributed computing (nice to have).
- Strong experience with DevOps and configuration management tools, including Ansible, Terraform, Jenkins, and Git.
- Knowledge of HPC in cloud environments (e.g., AWS, Azure, GCP HPC offerings) is a plus.
- Strong knowledge of Linux security, compliance standards, and data protection best practices.
- Excellent communication, interpersonal, and problem-solving skills.
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
HÖ
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