The firm
Exiorum is a proprietary trading firm in Lugano, founded in 2020. It trades its own capital: market making and systematic trading in equities, futures, options and digital assets.
40+ people. No outside investors. Everyone codes.
The role
The infrastructure is a latency-critical network across our colocation sites, plus a private research cluster.
You own regions and services end to end: cross-connects, circuits, switches, servers, time synchronisation and the automation that manages them. Every change is code, reviewed and measured before it reaches production.
What you will do
- Manage infrastructure from a firewall rule to a new rack: servers, switches, subnets, peering, DNS, access.
- Keep latency within documented targets and investigate when it moves.
- Tune Linux for trading: kernel, NIC, IRQ affinity, NUMA, PTP time synchronisation.
- Automate whatever would otherwise be repeated. Write and maintain runbooks.
- Take part in the on-call rota and run incidents.
What we look for
- Deep Linux: services, filesystems, permissions, logs, performance.
- Networking fundamentals in practice: routing, switching, DNS, TLS, firewalls, packet capture.
- Scripting sufficient to automate operations, in Python or similar.
- Experience running production systems where verification came before assumption.
- Fluent English.
Useful, not required
- Colocation and exchange connectivity.
- PTP and timing.
- Infrastructure-as-code tooling.
Format and offer
Lugano. In the office most days, with remote days agreed within the team. Support with Swiss work permits for the right person.
Base salary plus a discretionary bonus linked to the results you contribute to. Your choice of equipment, 28 days of leave plus public holidays, a health insurance contribution, an occupational pension above the legal minimum, a learning budget, and lunch in the office. Details on the careers page.
How to apply
Email hr@exiorum.com with the role in the subject line, a CV or a link to your work, and a few lines on what you have done that is relevant. No cover letter needed. The process has five steps and a decision within 3 days of the on-site.
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