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Hybrid HPC User Support Specialist
Posted last week
About the role
- HPC User Support Specialist at GRNET supporting researchers and engineers utilizing national HPC resources. Troubleshooting user requests and optimizing workflows in a high-performance computing environment.
Responsibilities
- Respond to and resolve HPC user support tickets
- Assist users with job submission, scheduling, and workflow optimization
- Support users in accessing systems, storage, and HPC software environments
- Investigate and troubleshoot issues related to jobs, applications, and resource usage
- Help users improve the performance of their workloads, including profiling and basic code optimisation support
- Run and analyse application benchmarks and scaling tests to understand performance bottlenecks
- Contribute to onboarding, user guides, and technical documentation
- Participate in user training activities (webinars, tutorials, hands‑on sessions)
- Collaborate with system administrators to identify and resolve system-side issues impacting users
- Provide feedback for improving HPC services and user experience
Requirements
- Experience using Linux environments and command-line tools
- Familiarity with HPC concepts such as modules, batch systems, job schedulers, and parallel computing
- Exposure to HPC job schedulers (preferably Slurm)
- Understanding of scientific computing workflows and common programming languages (e.g., Python, C/C++, Fortran, R)
- Experience with HPC application execution or user support in a technical environment
- Interest or experience in performance profiling (e.g., gprof, perf, Intel VTune, ARM MAP)
- Ability to troubleshoot issues involving jobs, user environments, or software modules
- Experience with ticketing or issue tracking tools (e.g., JIRA, Redmine, ServiceNow)
- Good knowledge of Greek and English
- Will be considered a plus
- Hands-on experience running workloads on HPC systems
- Familiarity with profiling and performance tuning tools
- Experience with containers for HPC (e.g., Apptainer/Singularity)
- Knowledge of parallel programming (MPI, OpenMP)
- Exposure to scientific domains (e.g., computational physics, AI/ML, bioinformatics)
- Experience preparing training material or teaching technical subjects
- MSc or PhD in a STEM field
Benefits
- Opportunities for international collaborations
- Competitive remuneration package
- Continuous professional development and training
- Modern, friendly and innovative working environment
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
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