Matteo Dessalvi
IT Linux Expert at GSI Helmholtz Centre for Heavy Ion Research
Frankfurt Rhine-Main Metropolitan Area Germany
Summary
👤
Senior🎓
Top SchoolMatteo Dessalvi is an experienced Linux and Unix systems engineer with over two decades of hands-on experience and 11 years focused in high-performance computing environments. Based in the Frankfurt Rhine-Main area, he currently serves as IT Linux Expert at GSI Helmholtz, where he built and runs large-scale Kubernetes and SLURM clusters, integrated Ceph storage, and designed Prometheus/Grafana monitoring for HPC infrastructures. He is a pragmatic operator comfortable with filesystem rescue (Lustre), container runtimes like Singularity, automation via Chef, and packaging for Debian and RPM ecosystems. Matteo is also an active open-source contributor—co-developing a Prometheus exporter for SLURM and improving scheduler metrics—which underscores his blend of systems-level troubleshooting and metrics-driven observability. Fluency across virtualization, distributed storage, and cluster scheduling, combined with a background migrating legacy Unix services to modern Linux stacks, makes him effective at translating complex research computing needs into reliable, production-grade platforms.
11 years of coding experience
8 years of employment as a software developer
Bachelor, Computer Science, Bachelor, Computer Science at Università degli Studi di CagliariHigh school diploma, Electronic and telecomunication, High school diploma, Electronic and telecomunication at I.T.I.S. G.Marconi
English, Italian, German
Github Skills (7)
go10
prometheus10
slurm10
data-parsing10
prometheus-exporter10
regular-expression9
testing8
Programming languages (8)
Github contributions (5)
vpenso/prometheus-slurm-exporter
Nov 2017 - Mar 2022
Prometheus exporter for performance metrics from Slurm.
Role in this project:
Backend Developer
Backend DeveloperContributions:19 releases, 73 commits, 24 PRs in 4 years 4 months
Contributions summary:Matteo primarily contributed to improving the Prometheus exporter for Slurm metrics. Their work involved fixing bugs related to data extraction from Slurm commands (`sinfo`, `sdiag`, `squeue`), including correcting regular expressions, handling edge cases with empty outputs, and ensuring all job states were accurately tracked. They also made improvements to the scheduler metrics collection, adding new metrics related to the DBD agent queue and backfill statistics. Code formatting with `gofmt` was also performed.
slurmexporterprometheus-exporterperformance-metricsperformance
mtds/haproxy_galera_check
Jan 2017 - Nov 2022
Shell script to check and report the status of a Galera node to HAproxy
Contributions:11 commits, 1 PR, 3 pushes in 5 years 11 months
mysqlreportstatusgalerabash
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