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Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in diagnosing and resolving complex infrastructure issues across Cloud, HPC, and AI environments, with a strong foundation in Linux system administration and customer support. Capable of collaborating with engineering teams and third-party vendors to enhance operational efficiency and support deployment of new technologies.
Highest-signal resume keywords
Cloud Infrastructure SupportLinux System AdministrationCustomer-Facing Technical SupportProblem-Solving SkillsITIL Concepts Familiarity
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Cloud TechnologiesHPC TechnologiesAI InfrastructureLinux AdministrationIncident ResolutionTroubleshootingLog AnalysisMetrics GatheringConfiguration ManagementAcceptance Testing
Soft Skills
Excellent Communication SkillsProactive MindsetCuriosityResilienceTeam Collaboration
Tools & Technologies
IT Service Management ToolsDiagnostic ToolsRunbooksTroubleshooting Guides
Industry Keywords
Cloud OperationsDatacenter Environments24/7 SupportFollow-the-Sun SupportTechnical Support
Tech Stack
Tools & technologiesCloudITSMLinux
About the role
Key responsibilities & impact- Triage, diagnose, and resolve complex infrastructure issues across Radiant’s Cloud Platform, HPC, and AI supercomputer fleet
- Provide timely, professional, high-quality customer support
- Own assigned incidents by gathering logs, metrics, and reproducers, documenting findings, and driving issues toward resolution
- Diagnose and debug hardware and software issues across cloud, Linux, and datacenter environments
- Resolve incidents independently or propose effective workarounds
- Collaborate with L3 and L4 Engineering support teams to escalate complex issues and coordinate corrective actions
- Participate in the 24/7 follow-the-sun support model and hand over tickets between regions
- Collaborate with third-party vendors on diagnostics and hardware replacements
- Support deployment of new AI supercomputers through installation, configuration, validation, and acceptance testing
- Contribute to troubleshooting guides, runbooks, and internal documentation
- Participate in retrospectives and lessons-learned sessions and suggest process, tooling, or platform improvements
- Develop technical skills in emerging cloud, HPC, and AI infrastructure technologies
- Occasionally travel globally to support Radiant initiatives, facilities, or industry events
Requirements
What you’ll need- Degree in Computer Science or a related STEM subject, or equivalent industry experience
- 3–5+ years of experience in a customer-facing technical support or cloud operations role
- Proven experience working with cloud, datacenter, and Linux environments
- Strong foundation in Linux system administration
- Familiarity with IT service management practices, such as ITIL concepts, is desirable
- Strong problem-solving skills and ability to troubleshoot complex technical issues under pressure
- Excellent written and spoken English communication skills
- Ability to explain technical concepts clearly to customers and internal teams
- Proactive, curious mindset and resilience in a fast-paced, evolving environment
- Willingness to participate in 24/7 follow-the-sun support and an on-call rota
- May occasionally be required to travel globally
- Right to work in the country of the role without sponsorship
Benefits
Comp & perks- 25 days of annual leave
- Open communication and regular feedback
- Dedicated learning time for new skills, projects, or interests
- Private medical insurance via Bupa
- Cycle to Work Scheme
- Gympass subscription to gyms and wellbeing apps
- Participation in the company shares program
- Enhanced parental pay and leave
- Compensation for work outside standard business hours/on-call rota