Senior Systems Reliability Engineer (SRE)
Employment Type: Full-time, Permanent
Location: Ireland (Remote) - Must relocate to Ireland
Applicants must be eligible to work in Ireland with no sponsorship
Salary: 125,000 Euros
About the company
A global fintech organisation operating mission‑critical trading technology is expanding its engineering presence in Ireland. The team builds and supports high‑performance, low‑latency systems used across financial markets, with a strong engineering culture and focus on reliability, fairness and technical excellence.
The Role
As a Senior SRE, you'll join a highly technical, engineering‑driven environment responsible for the reliability, performance, and operational excellence of a large‑scale, bare‑metal trading platform. This is a hybrid role combining systems engineering, observability, automation, and Real Time operational support.
You'll work across the full stack - (Linux, networking, applications, hardware) and play a key role in building a follow‑the‑Sun support model with teams in the U.S. and Europe.
What You’ll Do
* Own the technical operations of trading systems running on bare‑metal infrastructure
* Monitor, troubleshoot, and resolve issues across OS, network, hardware, and application layers
* Build and improve automation, tooling, and configuration management (Ansible or similar)
* Develop and maintain observability dashboards, alerts, and telemetry pipelines
* Participate in deployments, start‑up/shutdown procedures, and change management
* Contribute to engineering projects such as OS tuning, Kernel‑level optimisation, and performance improvements
* Collaborate with platform, development, and market operations teams
* Participate in on‑call rotation (1 week on; occasional Saturday for industry‑wide testing)
* Document processes, mentor teammates, and promote operational best practices
What You Will Bring
Must‑Have Technical Skills
* Strong Linux experience (comfortable with system processes, logs, services, troubleshooting)
* Hands‑on scripting with Python or Bash
* Experience with Ansible or similar configuration management tools
* Solid understanding of networking fundamentals: TCP/IP, routing, multicast
* Experience supporting large, distributed, or high‑availability systems Must have technical skills in observability; Prometheus, Grafana, Splunk, Graylog, Telemetry, alerting systems (eg Alertmanager), log pipelines
Nice‑to‑Have
* Experience with Bare‑metal deployments
* Kernel tuning/Kernel bypass techniques
* KDB experience
* Familiarity with Arista/Cisco Switches, Corvil, Solarflare/Mellanox NICs
* Understanding of trading systems
Who You Are
This matters as much as the tech.
* Works well independently and in distributed teams
* Communicates clearly and calmly
* Is collaborative, low‑ego, and easy to work with
* Can follow processes while still thinking critically
* Learns quickly and enjoys understanding complex systems
* Thrives in a high‑trust, engineering‑focused culture
Why Join?
* Work on mission‑critical, low‑latency trading systems
* Highly technical environment with deep engineering challenges
* Exposure to Kernel tuning, networking, automation, and performance optimisation
* Flexible working arrangements with opportunity for travel
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