Onnec
Data Centre Engineer - Harlow

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ONNEC Overview
ONNEC builds, supports and optimises the IT infrastructure, networks and connectivity which drive global business performance.
We are a rapidly growing organisation and finding and retaining the highest calibre of people is fundamental to us for the success of our business. We work hard to create a challenging, supportive and satisfying working environment for all our employees. ONNEC has successfully achieved the Investors in Diversity Foundational Award for our commitment to equality, diversity and inclusion in the workplace.
Data Centre Engineer Role
We are seeking a multi skilled Data Centre Engineer. You will be working as part of a small team providing Data Centre services to a prestigious International Financial organisation.
Responsibilities
- Working a 24x7x365 shift pattern of 4 days on 4 days off, 4 nights on 4 nights off
- Change control management
- Incident management and resolution
- Management and tracking of Assets
- Supervision and escorting of 3rd Party Vendors
- Planning and implementation of all IT hardware installations adhering to strict Data Centre Standards.
- Planning and decommission of network hardware and structured cabling
- Updating all relevant documentation and inventories
- Completing all service requests, within the agreed SLA
- Compliance with ONNEC’s and Client Health & Safety procedures
- Compliance with Manufacturers, ONNEC’s and Clients Quality Standards
- Compliance to Clients and Support Services approved processes
- Ensure security procedures with reference to Data Centres are complied with.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
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Task Description
- Maintenance of Data Centre toolsets that assist with support and management
- Management and governance over the DC
- Work closely with our facilities providers to maximise energy efficiency savings
- Successful day to day running of the Data Centre, including installations, decommissions, changes and maintenance
- Data Centre related service improvement projects
- Basic configuration of server (IDRAC, ILO)
- Fault finding and escalation
- Racking, stacking, moves, changes, decommissioning, patching
- Data Centre related major infrastructure projects including power outages and replacements
- Managing complex inter-rack/room cable infrastructure, providing a stable platform for IT infrastructure and desktop connectivity


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What we’re looking for in our Data Centre Engineer
- Experience of working in high-risk environments and Data Centres
- Knowledge of DCIM tools and standards (desirable)
- Experience of ServiceNow, Remedy or other ticketing system (desirable)
- Attention to detail and proactive
- Sound Knowledge of Infrastructure Technologies & Networking Concepts
- Competent in MS Office and Helpdesk/Service Delivery Applications
- A reliable individual and team player
- The ability to work under pressure
- Able to work on own initiative and unsupervised
- A flexible approach to shift patterns
- The ability to communicate clearly both written & verbally, at all levels
- Strong organisational, interpersonal, and administrative skills
- Applicants must have previous experience in a similar role
If you feel you have the required skills and experience, click apply now to be considered as our Data Centre Engineer - we’d love to hear from you!
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