Site Reliability Engineer - Data Centers

Job description

Site Reliability Engineer (SRE) – GPU Infrastructure Data Centres

Fully Remote Role - Work from home

The Site Reliability Engineer (SRE) is responsible for the end-to-end validation, testing, and readiness of GPU compute clusters prior to production release. The role ensures that all hardware, networking, and system components meet operational and reliability standards before customer workloads are deployed.

Working closely with global infrastructure and engineering teams, the SRE plays a critical role in maintaining the quality, stability, and integrity of high-performance compute environments.

Key Responsibilities

Cluster Validation & Testing

• Validate GPU clusters of varying sizes to ensure hardware and system integrity prior to production release
• Perform functional and reliability testing of GPUs, servers, and associated components
• Verify network connectivity and performance, including high-speed interconnects where applicable

Orchestration & Benchmarking

• Provision and configure GPU clusters using automated workflows
• Execute and analyse performance and stability benchmarks orchestrated via a workload scheduler
• Validate results against expected performance and reliability thresholds

Test Framework & Automation

• Maintain and extend the automated validation framework built using Python and Ansible
• Integrate new test cases to support additional hardware platforms and GPU generations
• Improve test reliability, coverage, and execution efficiency

Remediation & System Integrity

• Diagnose and remediate unhealthy nodes through configuration changes or software fixes
• Coordinate with on-site support teams for hardware replacements when required
• Ensure all issues are resolved and documented prior to handover to production operations

Documentation & Handover

• Produce clear, accurate documentation of test results, hardware states, and remediation actions
• Ensure smooth handovers to operations and engineering teams
• Maintain up-to-date runbooks and validation procedures

Team Collaboration & Training

• Work as part of a distributed, international infrastructure and engineering team
• Participate in knowledge sharing, process improvement, and technical reviews
• The working language is English; additional language skills are beneficial

Shift & Availability Requirements

• Ability to work independently within a remote environment
• Reliable internet connection and suitable home working setup
• Role is fully remote; company hardware will be provided

Skills & Experience

Essential

• Strong hands-on experience administering and troubleshooting Linux systems
• Confident use of CLI tools for diagnostics, including analysis of kernel logs, drivers, and system services
• Proven experience writing and maintaining Ansible playbooks
• Proficiency in Python for automation, test execution, and parsing results
• Strong analytical and problem-solving skills with attention to detail
• Excellent written and verbal English communication skills
• High standards for system reliability, consistency, and documentation

Preferred / Desirable

• Experience working with GPU-based or high-performance compute environments
• Familiarity with workload schedulers (e.g. Slurm or similar tools)
• Understanding of data centre hardware lifecycle and server validation processes
• Exposure to high-speed networking technologies
• Experience working with distributed or remote infrastructure teams

Performance & Success Metrics

• Accuracy and completeness of cluster validation prior to production release
• Reduction in post-deployment hardware or configuration issues
• Quality and clarity of validation documentation and handover materials
• Effectiveness of remediation and coordination with on-site teams
• Reliability and maintainability of automated test frameworks
• Collaboration and communication quality with engineering and operations teams

Extra information

Status

Open

Education Level

Secondary School

Location

Portsmouth

Type of Contract

Full Time Jobs

Published at

22-04-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English