Senior Data Center Technician

TGS International Group; Chester; On-site; GBP 40,000 - 43,000; Full time

Job summary

TGS International Group is seeking a Senior Data Center Technician (L2) for its Chester site. You will train across UK/Europe data centres, then settle in Chester as a hands-on escalation lead in AI infrastructure.

You will mentor junior technicians and drive operational standards in mission-critical environments, with a clear path into senior technical, engineering or management roles. Training spans two months across AI data centre sites.

Qualifications

• Experience in operating in a live enterprise or hyperscale data centre.
• Strong knowledge of rack and stack deployments and structured cabling.
• Server break/fix and hardware diagnostics experience.
• Knowledge of Ethernet networking and data centre infrastructure.
• Experience using ITSM platforms and maintaining accurate technical documentation.
• Strong troubleshooting, organisational and communication skills.
• Able to work independently within a mission-critical operational environment.
• Genuine interest in a long-term career in AI infrastructure and data centre operations.

Responsibilities

• Support day-to-day operation of mission-critical AI data centre environments.
• Deliver Smart Hands services - server reseats, drive replacements, transceiver swaps, cable replacements, inspections and photographic documentation.
• Perform rack and stack deployments, structured copper and fibre cabling, PDU installation and infrastructure commissioning.
• Lead deployment of enterprise server infrastructure supporting AI and GPU compute.
• Diagnose and resolve hardware, server and networking faults across mission-critical systems.
• Support Ethernet and InfiniBand fabric deployments within HPC environments.
• Act as the primary technical escalation point during shift operations.
• Resolve complex issues involving BMC/IPMI, server hardware, DPUs and InfiniBand networking.
• Mentor Junior Data Center Technicians and produce runbooks and Root Cause Analysis reports.
• Manage hardware lifecycle activity including RMAs, inventory and asset tracking; keep ITSM/Jira current.

Skills

Live data centre experience

Rack and stack deployments

Structured cabling

Server break/fix

Ethernet networking

ITSM and Jira

Troubleshooting

Independent work

Education

IT/CS/Engineering degree

Vendor certifications (Dell, HPE, Lenovo, Cisco)

CompTIA Server+ or Network+

Tools

ITSM platforms

Jira

Job description

One of Europe’s fastest-growing AI infrastructure providers is hiring a Senior Data Center Technician (L2) for its Chester site. Before you settle there, you will spend two fully supported months training across AI data centre sites in the UK and Europe - live hyperscale halls, NVIDIA GPU infrastructure, InfiniBand fabrics and large-scale AI deployments.

About the opportunity

This role pairs advanced technical delivery with shift leadership. You will be the primary technical escalation point before incidents reach the Remote Operations Team, leading complex troubleshooting, mentoring junior technicians and holding the operational standard expected in mission-critical AI environments. It is built for someone who wants a long-term career and a route into senior technical, engineering or management positions.

What you will be doing

• Support day-to-day operation of mission-critical AI data centre environments
• Deliver Smart Hands services - server reseats, drive replacements, transceiver swaps, cable replacements, inspections and photographic documentation
• Perform rack and stack deployments, structured copper and fibre cabling, PDU installation and infrastructure commissioning
• Lead deployment of enterprise server infrastructure supporting AI and GPU compute
• Diagnose and resolve hardware, server and networking faults across mission-critical systems
• Support Ethernet and InfiniBand fabric deployments within HPC environments
• Act as the primary technical escalation point during shift operations
• Resolve complex issues involving BMC/IPMI, server hardware, DPUs and InfiniBand networking
• Mentor Junior Data Center Technicians and produce runbooks and Root Cause Analysis reports
• Manage hardware lifecycle activity including RMAs, inventory and asset tracking; keep ITSM/Jira current

What you will need

• Previous experience within a live enterprise or hyperscale data centre
• Strong knowledge of rack and stack deployments and structured cabling
• Server break/fix and hardware diagnostics experience
• Knowledge of Ethernet networking and data centre infrastructure
• Experience using ITSM platforms and maintaining accurate technical documentation
• Strong troubleshooting, organisational and communication skills
• Able to work independently within a mission-critical operational environment
• Genuine interest in a long-term career in AI infrastructure and data centre operations

Nice to have

• AI or High-Performance Computing exposure
• InfiniBand networking
• Customer-facing technical support experience
• Root Cause Analysis reporting
• Qualification in IT, Computer Science or Engineering; vendor certifications (Dell, HPE, Lenovo, Cisco); CompTIA Server+ or Network+

A stable employment history within permanent data centre environments is viewed favourably given the long-term nature of this role.

Working pattern

35 hours per week, earlies and lates between 07:00 and 19:00. Two-month supported training programme across the UK and Europe, then permanently based in Chester.

What is on offer

GBP 40,000 - GBP 43,000, comprehensive benefits, specialist training in NVIDIA GPU infrastructure and AI technologies, exposure to some of Europe’s most advanced hyperscale AI facilities, and structured progression into senior engineering, operations and leadership roles.

Keywords

Senior Data Center Technician, L2 Technician, Data Centre Engineer, Smart Hands, Break/Fix, Rack and Stack, Structured Cabling, PDU, NVIDIA GPU, AI Infrastructure, HPC, InfiniBand, Ethernet, BMC, IPMI, DPU, RCA, ITSM, Jira, Hyperscale, Mission Critical, Chester, England